Minor: Additional functions (#25)

* several functions. fixes #1 and #2

* multi selection functionality

AGENTS.md

@@ -84,7 +84,7 @@ Run from the **workspace root**.
 - Card preview round-trips are slow (HTTPS handshake + image GET, often two hosts). The three amortizations in place — all game-agnostic — must stay. The full update mechanic (key-driven invalidation, positive↔negative same-key replacement, eviction, manual cache clearing) is documented in `docs/caching.md` → "Updating cached entries"; do **not** add a side-channel `clearCache(...)` API to `CardPreviewService` — keep updates flowing through cache keys so the in-memory and disk tiers stay aligned automatically.
   - `CardPreviewService` keeps a bounded in-memory LRU (`kCacheCapacity`) of preview bytes keyed by `(game, name, setId, setNo)` plus a by-URL cache for the per-game card-back fallback. Re-selecting a row already viewed in this session is decode-only, no HTTP. Source failures are split by `PreviewLookupError::Kind`: `NotFound` (the upstream answered cleanly that the record has no image) is **negative-cached** so subsequent clicks short-circuit to the card-back placeholder without HTTP, while `Transient` (HTTP/network/parse) is **never** cached so a brief outage can recover on the next selection. Editing a lookup-relevant field changes the cache key and invalidates the negative entry automatically.
   - `LocalPreviewByteCache` (port `IPreviewByteCache`) extends the LRU with an on-disk byte cache rooted at `<exeDir>/.cache/preview-cache/` — **next to the executable, in the same scope as `config.json`, NOT inside the user-configurable `dataStorage` path** so previews don't follow the user's collection when the data-storage path is reconfigured (the umbrella `.cache/` directory is reserved for any future computed-from-network caches). Both positive previews and `NotFound` verdicts **survive app restarts**. Lookup order is memory → disk → source/HTTP; a disk hit (positive or negative) is promoted into the in-memory tier so the follow-up call stays decode-only. Total `.bin` payload size is capped (default 64 MiB) and oldest-by-mtime entries are evicted when a new write would exceed the cap; tiny `.neg` markers are not counted against the cap. The persistent tier is fire-and-forget: any I/O error is swallowed by the adapter so disk problems can never break the preview path.
-  - `CprHttpClient` owns a single long-lived `cpr::Session` (and therefore a single libcurl easy handle) with keep-alive enabled, so repeat HTTPS calls to the same host (`api.scryfall.com`, `api.pokemontcg.io`, `api.tcgdex.net`, `assets.tcgdex.net`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, `images.digimoncard.io`) reuse the existing TLS connection. Concurrent callers are serialized through a mutex — easy handles are not thread-safe and the preview path is single-flight already. Session default **`Accept: */*`** keeps JSON info APIs and binary image GETs on one client; **`CardPreviewService::fetchAndCache`** rejects empty HTTP bodies so a bogus 200 cannot masquerade as a cached preview.
+  - `CprHttpClient` owns a single long-lived `cpr::Session` (and therefore a single libcurl easy handle) with keep-alive enabled, so repeat HTTPS calls to the same host (`api.scryfall.com`, `api.tcgdex.net`, `assets.tcgdex.net`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, `images.digimoncard.io`) reuse the existing TLS connection. Concurrent callers are serialized through a mutex — easy handles are not thread-safe and the preview path is single-flight already. Session default **`Accept: */*`** keeps JSON info APIs and binary image GETs on one client; **`CardPreviewService::fetchAndCache`** rejects empty HTTP bodies so a bogus 200 cannot masquerade as a cached preview.
 
 ## Windows UI theming guardrails
 
@@ -92,7 +92,7 @@ Run from the **workspace root**.
 - Treat UI text from domain/services as UTF-8 and convert explicitly at wx boundaries (`wxString::FromUTF8(...)` for display, `ToStdString(wxConvUTF8)` for write-back); do not rely on implicit `std::string` conversions on Windows.
 - For dialogs (`wxDialog`) and frames (`wxFrame`), apply title-bar dark mode through top-level-window handling (not frame-only handling), otherwise modal window headers stay light.
 - The `wxListCtrl` native header can ignore dark hints; if native theming is unreliable, use a custom themed header row and preserve key UX parity (single-click sort, edge-drag resize, divider double-click autosize).
-- Do **not** apply `Explorer` class theming to `wxTextCtrl` in dark mode; some Windows builds force black typed text. Keep edit controls palette-driven, and for critical fields (for example the top-right filter box) enforce colors through `WM_CTLCOLOREDIT` handling in `MainFrame` when needed.
+- Do **not** apply `Explorer` class theming to `wxTextCtrl` in dark mode; some Windows builds force black typed text. Keep edit controls palette-driven via `applyPaletteToTextCtrl` / `hardenTextCtrlNativeTheme` in `Theme.cpp` (opt out of immersive dark mode + parent `WM_CTLCOLOREDIT` subclass — that message goes to the EDIT's parent, not `MainFrame`).
 - Theme modal dialogs explicitly before `ShowModal()` (Settings, Create/Edit, image viewer, etc.) so they don't inherit mismatched defaults from Windows.
 - For button hover/pressed contrast fixes in dark theme, prefer explicit state handling in `Theme.cpp`; native Windows button states can override wx colors and produce unreadable white-on-white combinations.
 - Keep button theming state dynamic across theme switches (Dark <-> Light). Avoid lambdas that permanently capture old theme colors or behavior; stale handlers can make light-mode buttons look wrong.

README.md

@@ -9,6 +9,7 @@ Currently, the application supports the following TCGs:
 - Magic the Gathering
 - Pokemon TCG
 - Yu-Gi-Oh!
+- Yu-Gi-Oh! (Bandai)
 - Digimon (Digi-Battle)
 
 ## Screenshots
@@ -34,6 +35,13 @@ Currently, the application supports the following TCGs:
 
 </details>
 
+<details>
+<summary>Yu-Gi-Oh! (Bandai)</summary>
+
+![CCM3 Demo - Yu-Gi-Oh! (Bandai)](docs/assets/images/demo-ygo-bandai.png)
+
+</details>
+
 <details>
 <summary>Digimon (Digi-Battle)</summary>
 

app/AGENTS.md

@@ -9,7 +9,7 @@ The `ccm` executable — composition root only. The single place where concrete
 
 ## Conventions
 
-1. **Composition root is the only place** that names concrete adapters: `StdFileSystem`, `CprHttpClient`, `JsonCollectionRepository<MagicCard>`, `JsonCollectionRepository<PokemonCard>`, `JsonCollectionRepository<YuGiOhCard>`, `JsonCollectionRepository<DigiBattle99Card>`, `JsonSetRepository`, `LocalImageStore`, `LocalPreviewByteCache`, `MagicGameModule`, `PokemonGameModule`, `JapanesePokemonGameModule` (Asia sets/preview backend for unified Pokemon), `YuGiOhGameModule`, `DigiBattle99GameModule`, `MagicGameView`, `PokemonGameView`, `YuGiOhGameView`, `DigiBattle99GameView`, etc. If a concrete adapter type appears anywhere else in the codebase, move the wiring here.
+1. **Composition root is the only place** that names concrete adapters: `StdFileSystem`, `CprHttpClient`, `JsonCollectionRepository<MagicCard>`, `JsonCollectionRepository<PokemonCard>`, `JsonCollectionRepository<YuGiOhCard>`, `JsonCollectionRepository<DigiBattle99Card>`, `JsonCollectionRepository<YuGiOhBandaiCard>`, `JsonSetRepository`, `YuGiOhSetCatalogService`, `DigiBattle99SetCatalogService`, `YuGiOhBandaiSetCatalogService`, `PokemonSetCatalogService`, `LocalImageStore`, `LocalPreviewByteCache`, `MagicGameModule`, `PokemonGameModule`, `JapanesePokemonGameModule` (Asia sets/preview backend for unified Pokemon), `YuGiOhGameModule`, `DigiBattle99GameModule`, `YuGiOhBandaiGameModule`, `MagicGameView`, `PokemonGameView`, `YuGiOhGameView`, `DigiBattle99GameView`, `YuGiOhBandaiGameView`, etc. If a concrete adapter type appears anywhere else in the codebase, move the wiring here.
 2. **Member declaration order in `CcmApp` matters** — destruction is reverse, so a member that depends on another (e.g. `magicCollSvc_` depends on `magicRepo_` and `imgStore_`; `previewSvc_` depends on `http_` and is consumed by `ctx_`; `magicView_` depends on the typed `magicCollSvc_` and the shared services) must be declared **after** its deps. Do not reorder casually.
 3. **Use `std::unique_ptr` for everything owned** by `CcmApp`. The `AppContext` then holds plain references into those owned objects, plus a vector of `IGameView*` raw pointers (the `unique_ptr<>`s for the views are the actual owners; the vector just describes the active set).
 4. **Game-to-directory mapping** lives in `dirNameForGame(Game)` (anonymous namespace). When adding a new game, extend this function — it is wired into all three repositories (`JsonCollectionRepository`, `JsonSetRepository`, `LocalImageStore`). Pokemon West (`Game::Pokemon`) and Asia (`Game::JapanesePokemon`) both map to `"pokemon"`; `JsonSetRepository` stores their set caches as `sets-west.json` / `sets-asia.json` in that directory (other games keep `sets.json`).

app/main.cpp

@@ -5,6 +5,7 @@
 #include "ccm/domain/DigiBattle99Card.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 #include "ccm/games/digibattle99/DigiBattle99GameModule.hpp"
 #include "ccm/games/magic/MagicGameModule.hpp"
@@ -12,6 +13,7 @@
 #include "ccm/games/pokemonjp/JapanesePokemonEnCatalog.hpp"
 #include "ccm/games/pokemonjp/JapanesePokemonGameModule.hpp"
 #include "ccm/games/yugioh/YuGiOhGameModule.hpp"
+#include "ccm/games/yugiohbandai/YuGiOhBandaiGameModule.hpp"
 #include "ccm/infra/CprHttpClient.hpp"
 #include "ccm/infra/JsonCollectionRepository.hpp"
 #include "ccm/infra/JsonSetRepository.hpp"
@@ -21,6 +23,10 @@
 #include "ccm/services/CardPreviewService.hpp"
 #include "ccm/services/CollectionService.hpp"
 #include "ccm/services/ConfigService.hpp"
+#include "ccm/services/DigiBattle99SetCatalogService.hpp"
+#include "ccm/services/PokemonSetCatalogService.hpp"
+#include "ccm/services/YuGiOhBandaiSetCatalogService.hpp"
+#include "ccm/services/YuGiOhSetCatalogService.hpp"
 #include "ccm/services/ImageService.hpp"
 #include "ccm/services/SetService.hpp"
 #include "ccm/ui/AppContext.hpp"
@@ -28,6 +34,7 @@
 #include "ccm/ui/MagicGameView.hpp"
 #include "ccm/ui/MainFrame.hpp"
 #include "ccm/ui/PokemonGameView.hpp"
+#include "ccm/ui/YuGiOhBandaiGameView.hpp"
 #include "ccm/ui/YuGiOhGameView.hpp"
 
 #include <wx/app.h>
@@ -51,6 +58,7 @@ std::string dirNameForGame(ccm::Game g) {
         case ccm::Game::Pokemon:         return "pokemon";
         case ccm::Game::YuGiOh:          return "yugioh";
         case ccm::Game::DigiBattle99:    return "digibattle99";
+        case ccm::Game::YuGiOhBandai:    return "yugiohbandai";
         case ccm::Game::JapanesePokemon: return "pokemon";
     }
     return "magic";
@@ -88,6 +96,7 @@ public:
         pokeMod_  = std::make_unique<ccm::PokemonGameModule>(*http_);
         ygoMod_   = std::make_unique<ccm::YuGiOhGameModule>(*http_);
         digiBattle99Mod_ = std::make_unique<ccm::DigiBattle99GameModule>(*http_);
+        ygoBandaiMod_ = std::make_unique<ccm::YuGiOhBandaiGameModule>(*http_);
 
         ccm::JapanesePokemonEnCatalog jpCatalog;
         {
@@ -109,7 +118,19 @@ public:
         digiBattle99Repo_ =
             std::make_unique<ccm::JsonCollectionRepository<ccm::DigiBattle99Card>>(
                 *fs_, *config_, &dirNameForGame);
+        ygoBandaiRepo_ =
+            std::make_unique<ccm::JsonCollectionRepository<ccm::YuGiOhBandaiCard>>(
+                *fs_, *config_, &dirNameForGame);
         setRepo_   = std::make_unique<ccm::JsonSetRepository>(*fs_, *config_, &dirNameForGame);
+        digiBattle99CatalogStore_ =
+            std::make_unique<ccm::DigiBattle99SetCatalogService>(*fs_, *config_, &dirNameForGame);
+        ygoCatalogStore_ =
+            std::make_unique<ccm::YuGiOhSetCatalogService>(*fs_, *config_, &dirNameForGame);
+        ygoMod_->setCatalogService(ygoCatalogStore_.get());
+        ygoBandaiCatalogStore_ =
+            std::make_unique<ccm::YuGiOhBandaiSetCatalogService>(*fs_, *config_, &dirNameForGame);
+        pokeCatalogStore_ =
+            std::make_unique<ccm::PokemonSetCatalogService>(*fs_, *config_, &dirNameForGame);
         imgStore_  = std::make_unique<ccm::LocalImageStore>(*fs_, *config_, &dirNameForGame);
 
         imgSvc_       = std::make_unique<ccm::ImageService>(*imgStore_);
@@ -122,11 +143,15 @@ public:
         digiBattle99CollSvc_ =
             std::make_unique<ccm::CollectionService<ccm::DigiBattle99Card>>(
                 *digiBattle99Repo_, *imgStore_);
+        ygoBandaiCollSvc_ =
+            std::make_unique<ccm::CollectionService<ccm::YuGiOhBandaiCard>>(
+                *ygoBandaiRepo_, *imgStore_);
         setSvc_       = std::make_unique<ccm::SetService>(*setRepo_);
         setSvc_->registerModule(magicMod_.get());
         setSvc_->registerModule(pokeMod_.get());
         setSvc_->registerModule(ygoMod_.get());
         setSvc_->registerModule(digiBattle99Mod_.get());
+        setSvc_->registerModule(ygoBandaiMod_.get());
         setSvc_->registerModule(jpPokeMod_.get());
 
         // Disk-backed preview cache lives next to the executable, in the same
@@ -152,18 +177,24 @@ public:
         previewSvc_->registerModule(*pokeMod_);
         previewSvc_->registerModule(*ygoMod_);
         previewSvc_->registerModule(*digiBattle99Mod_);
+        previewSvc_->registerModule(*ygoBandaiMod_);
         previewSvc_->registerModule(*jpPokeMod_);
 
         // Per-game UI bundles. Order here is the order shown in the Game menu.
         magicView_ = std::make_unique<ccm::ui::MagicGameView>(
             *config_, *magicCollSvc_, *setSvc_, *imgSvc_, *previewSvc_, *magicMod_);
         pokeView_  = std::make_unique<ccm::ui::PokemonGameView>(
-            *config_, *pokeCollSvc_, *setSvc_, *imgSvc_, *previewSvc_, *pokeMod_);
+            *config_, *pokeCollSvc_, *setSvc_, *imgSvc_, *previewSvc_, *pokeMod_, *jpPokeMod_,
+            *pokeCatalogStore_);
         ygoView_   = std::make_unique<ccm::ui::YuGiOhGameView>(
-            *config_, *ygoCollSvc_, *setSvc_, *imgSvc_, *previewSvc_, *ygoMod_);
+            *config_, *ygoCollSvc_, *setSvc_, *imgSvc_, *previewSvc_, *ygoMod_,
+            *ygoCatalogStore_);
         digiBattle99View_ = std::make_unique<ccm::ui::DigiBattle99GameView>(
             *config_, *digiBattle99CollSvc_, *setSvc_, *imgSvc_, *previewSvc_,
-            *digiBattle99Mod_);
+            *digiBattle99Mod_, *digiBattle99CatalogStore_);
+        ygoBandaiView_ = std::make_unique<ccm::ui::YuGiOhBandaiGameView>(
+            *config_, *ygoBandaiCollSvc_, *setSvc_, *imgSvc_, *previewSvc_,
+            *ygoBandaiMod_, *ygoBandaiCatalogStore_);
 
         ctx_ = std::make_unique<ccm::ui::AppContext>(ccm::ui::AppContext{
             *config_,
@@ -174,8 +205,10 @@ public:
             *pokeMod_,
             *ygoMod_,
             *digiBattle99Mod_,
+            *ygoBandaiMod_,
             *jpPokeMod_,
-            { magicView_.get(), pokeView_.get(), ygoView_.get(), digiBattle99View_.get() },
+            { magicView_.get(), pokeView_.get(), ygoView_.get(), ygoBandaiView_.get(),
+              digiBattle99View_.get() },
         });
 
         auto* frame = new ccm::ui::MainFrame(*ctx_);
@@ -197,18 +230,25 @@ private:
     std::unique_ptr<ccm::PokemonGameModule>                          pokeMod_;
     std::unique_ptr<ccm::YuGiOhGameModule>                           ygoMod_;
     std::unique_ptr<ccm::DigiBattle99GameModule>                     digiBattle99Mod_;
+    std::unique_ptr<ccm::YuGiOhBandaiGameModule>                     ygoBandaiMod_;
     std::unique_ptr<ccm::JapanesePokemonGameModule>                  jpPokeMod_;
     std::unique_ptr<ccm::JsonCollectionRepository<ccm::MagicCard>>   magicRepo_;
     std::unique_ptr<ccm::JsonCollectionRepository<ccm::PokemonCard>> pokeRepo_;
     std::unique_ptr<ccm::JsonCollectionRepository<ccm::YuGiOhCard>>  ygoRepo_;
     std::unique_ptr<ccm::JsonCollectionRepository<ccm::DigiBattle99Card>> digiBattle99Repo_;
+    std::unique_ptr<ccm::JsonCollectionRepository<ccm::YuGiOhBandaiCard>> ygoBandaiRepo_;
     std::unique_ptr<ccm::JsonSetRepository>                          setRepo_;
+    std::unique_ptr<ccm::DigiBattle99SetCatalogService>              digiBattle99CatalogStore_;
+    std::unique_ptr<ccm::YuGiOhSetCatalogService>                    ygoCatalogStore_;
+    std::unique_ptr<ccm::YuGiOhBandaiSetCatalogService>              ygoBandaiCatalogStore_;
+    std::unique_ptr<ccm::PokemonSetCatalogService>                   pokeCatalogStore_;
     std::unique_ptr<ccm::LocalImageStore>                            imgStore_;
     std::unique_ptr<ccm::ImageService>                               imgSvc_;
     std::unique_ptr<ccm::CollectionService<ccm::MagicCard>>          magicCollSvc_;
     std::unique_ptr<ccm::CollectionService<ccm::PokemonCard>>        pokeCollSvc_;
     std::unique_ptr<ccm::CollectionService<ccm::YuGiOhCard>>         ygoCollSvc_;
     std::unique_ptr<ccm::CollectionService<ccm::DigiBattle99Card>>   digiBattle99CollSvc_;
+    std::unique_ptr<ccm::CollectionService<ccm::YuGiOhBandaiCard>>   ygoBandaiCollSvc_;
     std::unique_ptr<ccm::SetService>                                 setSvc_;
     std::unique_ptr<ccm::LocalPreviewByteCache>                      previewCache_;
     std::unique_ptr<ccm::CardPreviewService>                         previewSvc_;
@@ -216,6 +256,7 @@ private:
     std::unique_ptr<ccm::ui::PokemonGameView>                        pokeView_;
     std::unique_ptr<ccm::ui::YuGiOhGameView>                         ygoView_;
     std::unique_ptr<ccm::ui::DigiBattle99GameView>                   digiBattle99View_;
+    std::unique_ptr<ccm::ui::YuGiOhBandaiGameView>                   ygoBandaiView_;
     std::unique_ptr<ccm::ui::AppContext>                             ctx_;
 };
 

cmake/Dependencies.cmake

@@ -31,7 +31,7 @@ FetchContent_MakeAvailable(nlohmann_json)
 
 # ---------------------------------------------------------------------------
 # cpr - C++ Requests (libcurl wrapper). Builds curl in-tree so we don't need
-# a system libcurl. Used for Scryfall + pokemontcg.io REST calls.
+# a system libcurl. Used for Scryfall + TCGdex REST calls.
 #
 # Pinned at 1.10.5 deliberately. 1.11.x adds an `install(EXPORT cprTargets)`
 # rule that references `libcurl_shared`, which isn't in any export set when

core/AGENTS.md

@@ -4,11 +4,11 @@
 
 ## Layer pointers
 
-- `include/ccm/domain/` — POD value types: `Enums` (includes `PokemonRegion`), `Set`, `MagicCard`, `PokemonCard` (unified West/Asia via `region`), `YuGiOhCard`, `DigiBattle99Card`, `JapanesePokemonCard` (legacy type retained for tests/serde; app collection uses `PokemonCard`), `Configuration`. Each has `to_json` / `from_json` defined in the matching `src/domain/*.cpp`.
+- `include/ccm/domain/` — POD value types: `Enums` (includes `PokemonRegion`), `Set`, `MagicCard`, `PokemonCard` (unified West/Asia via `region`), `YuGiOhCard`, `YuGiOhSetCatalog` (Yu-Gi-Oh! pack checklists for set completion), `YuGiOhBandaiCard`, `YuGiOhBandaiSetCatalog` (Bandai pack checklists for set completion), `DigiBattle99Card`, `DigiBattle99SetCatalog` (Digi-Battle pack checklists for set completion), `PokemonSetCatalog` (Pokemon West/Asia pack checklists for set completion), `JapanesePokemonCard` (legacy type retained for tests/serde; app collection uses `PokemonCard`), `Configuration`. Each has `to_json` / `from_json` defined in the matching `src/domain/*.cpp`.
 - `include/ccm/ports/` — interfaces (`IHttpClient`, `IFileSystem`, `ICollectionRepository<T>`, `ISetRepository`, `IImageStore`, `ICardPreviewSource`, `IPreviewByteCache`). All seams the services depend on. Add new ports here when adding new external concerns.
-- `include/ccm/services/` — high-level operations: `ConfigService`, `CollectionService<TCard>` (header-only template), `SetService`, `ImageService`, `CardPreviewService`, `CardSorter` (free functions; per-column sort comparators that mirror established table sorting behavior — UI-agnostic so they can be unit-tested directly), `CardFilter` (free functions; case-insensitive substring row matcher restricted to each game's `tableFields` valueKey list). They depend only on ports.
 - `include/ccm/infra/` — concrete adapters: `CprHttpClient`, `StdFileSystem`, `JsonCollectionRepository<T>` (header-only template), `JsonSetRepository`, `LocalImageStore`, `LocalPreviewByteCache`.
-- `include/ccm/games/` — `IGameModule` + per-game modules. `IGameModule` consolidates the per-game seams: every module owns an `ISetSource` (required) and may own an `ICardPreviewSource` (optional, default `nullptr`). `magic/`, `pokemon/`, `yugioh/`, `digibattle99/`, and `pokemonjp/` are the reference implementations — all five expose a fully working set source + card preview source. `pokemonjp/` is the **Asia region backend** for the unified Pokemon UI (set cache at `pokemon/sets-asia.json`, same data dir as West; TCGdex JA previews); it is registered for sets/previews but is not a separate Game menu entry. Japanese Pokémon also loads an optional EN name catalog (`JapanesePokemonEnCatalog`) for display/auto-detect.
+- `include/ccm/services/` — high-level operations: `ConfigService`, `CollectionService<TCard>` (header-only template), `SetService`, `ImageService`, `CardPreviewService`, `CardSorter` (free functions; per-column sort comparators that mirror established table sorting behavior — UI-agnostic so they can be unit-tested directly), `CardFilter` (free functions; case-insensitive substring row matcher restricted to each game's `tableFields` valueKey list), `YuGiOhSetCompletion` / `YuGiOhBandaiSetCompletion` / `DigiBattle99SetCompletion` / `PokemonSetCompletion` (pure set-completion / checklist helpers), `YuGiOhSetCatalogService` (`yugioh/set-catalog.json`), `YuGiOhBandaiSetCatalogService` (`yugiohbandai/set-catalog.json`), `DigiBattle99SetCatalogService` (`digibattle99/set-catalog.json`), `PokemonSetCatalogService` (`pokemon/set-catalog-west.json` / `set-catalog-asia.json`). They depend only on ports / domain.
+- `include/ccm/games/` — `IGameModule` + per-game modules. `IGameModule` consolidates the per-game seams: every module owns an `ISetSource` (required) and may own an `ICardPreviewSource` (optional, default `nullptr`). `magic/`, `pokemon/`, `yugioh/`, `yugiohbandai/`, `digibattle99/`, and `pokemonjp/` are the reference implementations — all expose a fully working set source + card preview source. `YuGiOhSetSource`, `YuGiOhBandaiSetSource`, `DigiBattle99SetSource`, `PokemonSetSource`, and `JapanesePokemonSetSource` also expose `fetchAllWithCatalog` (and related catalog parsers) for set-completion checklists. `pokemonjp/` is the **Asia region backend** for the unified Pokemon UI (set cache at `pokemon/sets-asia.json`, same data dir as West; TCGdex JA previews); it is registered for sets/previews but is not a separate Game menu entry. Japanese Pokémon also loads an optional EN name catalog (`JapanesePokemonEnCatalog`) for display/auto-detect / Asia set-completion gap-fill.
 - `include/ccm/util/` — `Result.hpp` (the sum type), `FsNames.hpp` (filename munging ported from `util/fs.rs`), `YuGiOhPrintingSlot.hpp` / `YuGiOhSetLookup.hpp` (Yu-Gi-Oh! print-slot helpers and cached-set **set code** lookup for the edit dialog; both header-only, unit-tested).
 - `src/` mirrors `include/ccm/` for non-template implementations.
 
@@ -27,7 +27,7 @@
 8. **HTTP query strings must be percent-encoded** before they reach `IHttpClient::get`. `cpr::Url` does **not** encode the URL string we hand it. See `MagicCardPreviewSource::buildSearchUrl` for the canonical pattern (RFC 3986 unreserved-set encoder). `IHttpClient::get` accepts arbitrary bytes back — `Result<std::string>` is a binary buffer, not text, so callers can use it for image payloads directly.
 9. **Yu-Gi-Oh! preview uses Yugipedia, not YGOPRODeck.** `YuGiOhCardPreviewSource::fetchImageUrl` queries Yugipedia's MediaWiki API with a batched list of deterministic file names (`<Slug>-<SET>-<REGION>-<RARITY>-<EDITION>.<png|jpg>`) so per-printing reprints with shared passcodes (LOB Blue-Eyes vs SDK Blue-Eyes, …) resolve to genuinely different scans. Region candidates are **always English** (`EN`/`NA`/`EU`/`AU`) regardless of `card.language`; localized scans are not queried. YGOPRODeck remains as a last-resort fallback (see `parseFallbackImageUrl`) for cards Yugipedia hasn't scanned yet, and as the source for `detectFirstPrint` / `detectPrintVariants` (`parsePrintVariants` enumerates distinct printings for the edit dialog). **Do not** restore a YGOPRODeck-only image path: that endpoint's `card_images` array is keyed by art-treatment passcode, not by physical printing, and adding `cardset=` only reorders the same passcode list (alt-art often gets promoted) without ever surfacing the per-printing scan. The YGO source therefore needs the printed edition flag to be plumbed through; `YuGiOhSelectedCardPanel::previewKey()` packs it into the third tuple slot as `<setNo>||<rarity>||<1E|UE>` so the candidate list can prioritize the correct edition without changing the generic `ICardPreviewSource` interface.
 10. **Preview byte cache (`CardPreviewService`) is by `(game, name, setId, setNo)` across two tiers, with classified failure caching and a single update mechanic.** Successful `fetchPreviewBytes` results and successful `fetchImageBytesByUrl` results are stored first in a bounded in-memory LRU (`kCacheCapacity` entries, mutex-protected — the panel calls into the service from a worker thread) and then in an optional persistent byte cache (`IPreviewByteCache`, normally `LocalPreviewByteCache` rooted at `<exeDir>/.cache/preview-cache/` — next to the executable, **not** under `dataStorage`, so previews don't follow the user's collection when the data-storage path is reconfigured). **`fetchAndCache` rejects empty response bodies** (returns error, no tier write) so a degenerate HTTP 200 cannot fill the LRU with unusable entries. Lookup order is **memory → disk → source/HTTP**, and a disk hit (positive *or* negative) is promoted into the in-memory tier on its way to the caller so the next selection of the same row stays decode-only. **Failures are split by `PreviewLookupError::Kind`**: `NotFound` is negative-cached in both tiers (memory `CacheEntry::negative=true`, disk `<hash>.neg` marker) so the user gets an instant card-back on every subsequent click for cards whose printing genuinely has no upstream image; `Transient` (HTTP/network/parse failures) is **never** cached so a brief outage cannot permanently disable previews. Per-game `ICardPreviewSource::fetchImageUrl` implementations must classify their errors honestly — `NotFound` only when the upstream answered cleanly with no match / no image variants; anything that could be the network or a schema deviation is `Transient`. **The cache update mechanic is entirely key-driven and has no side-channel API:** (a) the user editing any lookup-relevant field of a card record changes the cache key, so the next selection misses both tiers and re-runs the source — this is how a stale negative entry gets dislodged after the user fixes the record, with no manual invalidation call needed; (b) a same-key resolution that flips between positive and negative outcomes overwrites the existing entry in both tiers (`store` removes any `.neg` for that hash; `storeNegative` removes any `.bin`) so `.bin` and `.neg` for the same hash are never co-resident; (c) eviction handles passive aging (LRU on the in-memory tier; oldest-by-mtime `.bin` files on the disk tier; `.neg` markers don't count against the size cap and are not actively evicted). **Do not add a `clearCache(...)` / `invalidate(...)` method** to `CardPreviewService`: the cache invariants depend on memory and disk staying aligned through the same write paths, and any side-channel API would just be a new way for future code to forget the disk tier. If you add a new lookup disambiguator (for example a future `editionTag` slot), pack it into one of the existing key fields (see `YuGiOhSelectedCardPanel::previewKey()`'s `||`-separated trailing fields) so editing the field continues to invalidate cached entries automatically. The persistent tier is **fire-and-forget**: the adapter swallows I/O errors so a flaky or full disk degrades the experience to a fresh-install warm-up, never to a broken preview path.
-11. **`CprHttpClient` keeps one persistent `cpr::Session` for the app's lifetime.** All callers (set sources, preview sources, fallback URL fetch, auto-detect) share the same libcurl easy handle so connections to repeat hosts (`api.scryfall.com`, `api.pokemontcg.io`, `api.tcgdex.net`, `assets.tcgdex.net`, `product-images.tcgplayer.com`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, `images.digimoncard.io`) are reused with TLS keep-alive. Default request headers use **`Accept: */*`** so JSON endpoints and binary image downloads share one session without pinning every GET to `application/json`. The session is not thread-safe — every `get(...)` is serialized through an internal mutex. **Do not** construct a new `cpr::Session` (or `cpr::Get(...)`) per call: that throws away the connection cache and re-pays the TLS handshake every time. If you need richer behavior on the port (POST, headers per call, …) extend `IHttpClient` and the adapter while keeping the single-session ownership intact.
+11. **`CprHttpClient` keeps one persistent `cpr::Session` for the app's lifetime.** All callers (set sources, preview sources, fallback URL fetch, auto-detect) share the same libcurl easy handle so connections to repeat hosts (`api.scryfall.com`, `api.tcgdex.net`, `assets.tcgdex.net`, `product-images.tcgplayer.com`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, `images.digimoncard.io`) are reused with TLS keep-alive. Default request headers use **`Accept: */*`** so JSON endpoints and binary image downloads share one session without pinning every GET to `application/json`. The session is not thread-safe — every `get(...)` is serialized through an internal mutex. **Do not** construct a new `cpr::Session` (or `cpr::Get(...)`) per call: that throws away the connection cache and re-pays the TLS handshake every time. If you need richer behavior on the port (POST, headers per call, …) extend `IHttpClient` and the adapter while keeping the single-session ownership intact.
 
 ## Adding a new game
 

core/CMakeLists.txt

@@ -7,7 +7,12 @@ add_library(ccm_core STATIC
     src/domain/MagicCard.cpp
     src/domain/PokemonCard.cpp
     src/domain/YuGiOhCard.cpp
+    src/domain/YuGiOhBandaiCard.cpp
+    src/domain/YuGiOhBandaiSetCatalog.cpp
     src/domain/DigiBattle99Card.cpp
+    src/domain/DigiBattle99SetCatalog.cpp
+    src/domain/YuGiOhSetCatalog.cpp
+    src/domain/PokemonSetCatalog.cpp
     src/domain/JapanesePokemonCard.cpp
     src/domain/Configuration.cpp
 
@@ -17,6 +22,14 @@ add_library(ccm_core STATIC
     src/services/CardPreviewService.cpp
     src/services/CardSorter.cpp
     src/services/CardFilter.cpp
+    src/services/DigiBattle99SetCompletion.cpp
+    src/services/DigiBattle99SetCatalogService.cpp
+    src/services/YuGiOhSetCompletion.cpp
+    src/services/YuGiOhSetCatalogService.cpp
+    src/services/YuGiOhBandaiSetCompletion.cpp
+    src/services/YuGiOhBandaiSetCatalogService.cpp
+    src/services/PokemonSetCompletion.cpp
+    src/services/PokemonSetCatalogService.cpp
 
     src/infra/CprHttpClient.cpp
     src/infra/StdFileSystem.cpp
@@ -27,6 +40,8 @@ add_library(ccm_core STATIC
     src/games/magic/MagicSetSource.cpp
     src/games/magic/MagicCardPreviewSource.cpp
     src/games/magic/MagicGameModule.cpp
+    src/games/pokemon/PokemonWestSetId.cpp
+    src/games/pokemon/PokemonCollectionSetSync.cpp
     src/games/pokemon/PokemonSetSource.cpp
     src/games/pokemon/PokemonCardPreviewSource.cpp
     src/games/pokemon/PokemonGameModule.cpp
@@ -36,12 +51,16 @@ add_library(ccm_core STATIC
     src/games/digibattle99/DigiBattle99SetSource.cpp
     src/games/digibattle99/DigiBattle99CardPreviewSource.cpp
     src/games/digibattle99/DigiBattle99GameModule.cpp
+    src/games/yugiohbandai/YuGiOhBandaiSetSource.cpp
+    src/games/yugiohbandai/YuGiOhBandaiCardPreviewSource.cpp
+    src/games/yugiohbandai/YuGiOhBandaiGameModule.cpp
     src/games/pokemonjp/JapanesePokemonEnCatalog.cpp
     src/games/pokemonjp/JapanesePokemonSetSource.cpp
     src/games/pokemonjp/JapanesePokemonCardPreviewSource.cpp
     src/games/pokemonjp/JapanesePokemonGameModule.cpp
 
     src/util/FsNames.cpp
+    src/util/SetNoNatural.cpp
 )
 
 target_include_directories(ccm_core

core/include/ccm/domain/DigiBattle99SetCatalog.hpp

@@ -0,0 +1,52 @@
+#pragma once
+
+// DigiBattle99SetCatalog: offline pack → card checklist for Digi-Battle set
+// completion. Filled from digimoncard.io bulk search.php (same payload as the
+// set list) and persisted at `<dataStorage>/digibattle99/set-catalog.json`.
+
+#include <nlohmann/json.hpp>
+
+#include <cstddef>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct DigiBattle99CatalogCard {
+    std::string setNo;
+    std::string name;
+
+    friend bool operator==(const DigiBattle99CatalogCard&,
+                           const DigiBattle99CatalogCard&) = default;
+};
+
+struct DigiBattle99SetCatalogPack {
+    std::string setId;
+    std::string setName;
+    std::vector<DigiBattle99CatalogCard> cards;
+
+    friend bool operator==(const DigiBattle99SetCatalogPack&,
+                           const DigiBattle99SetCatalogPack&) = default;
+};
+
+struct DigiBattle99SetCatalog {
+    std::vector<DigiBattle99SetCatalogPack> packs;
+
+    [[nodiscard]] const DigiBattle99SetCatalogPack* findPack(
+        std::string_view setId) const;
+
+    [[nodiscard]] bool empty() const noexcept { return packs.empty(); }
+
+    friend bool operator==(const DigiBattle99SetCatalog&,
+                           const DigiBattle99SetCatalog&) = default;
+};
+
+void to_json(nlohmann::json& j, const DigiBattle99CatalogCard& c);
+void from_json(const nlohmann::json& j, DigiBattle99CatalogCard& c);
+void to_json(nlohmann::json& j, const DigiBattle99SetCatalogPack& p);
+void from_json(const nlohmann::json& j, DigiBattle99SetCatalogPack& p);
+void to_json(nlohmann::json& j, const DigiBattle99SetCatalog& c);
+void from_json(const nlohmann::json& j, DigiBattle99SetCatalog& c);
+
+}  // namespace ccm

core/include/ccm/domain/Enums.hpp

@@ -21,6 +21,7 @@ enum class Game {
     Pokemon,
     YuGiOh,
     DigiBattle99,
+    YuGiOhBandai,
     JapanesePokemon,  // internal Asia sets/preview routing; not in allGames()
 };
 
@@ -70,7 +71,7 @@ std::optional<Condition>     conditionFromString(std::string_view s) noexcept;
 std::optional<Theme>         themeFromString(std::string_view s) noexcept;
 
 // User-facing games (Game menu / Settings). JapanesePokemon is internal-only.
-const std::array<Game, 4>&       allGames() noexcept;
+const std::array<Game, 5>&       allGames() noexcept;
 const std::array<Language, 10>&  allLanguages() noexcept;
 const std::array<Condition, 7>&  allConditions() noexcept;
 const std::array<Theme, 2>&      allThemes() noexcept;

core/include/ccm/domain/PokemonSetCatalog.hpp

@@ -0,0 +1,52 @@
+#pragma once
+
+// PokemonSetCatalog: offline pack → card checklist for Pokemon set
+// completion. West and Asia each persist their own file under
+// `<dataStorage>/pokemon/` (`set-catalog-west.json` / `set-catalog-asia.json`).
+
+#include <nlohmann/json.hpp>
+
+#include <cstddef>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct PokemonCatalogCard {
+    std::string setNo;
+    std::string name;
+
+    friend bool operator==(const PokemonCatalogCard&,
+                           const PokemonCatalogCard&) = default;
+};
+
+struct PokemonSetCatalogPack {
+    std::string setId;
+    std::string setName;
+    std::vector<PokemonCatalogCard> cards;
+
+    friend bool operator==(const PokemonSetCatalogPack&,
+                           const PokemonSetCatalogPack&) = default;
+};
+
+struct PokemonSetCatalog {
+    std::vector<PokemonSetCatalogPack> packs;
+
+    [[nodiscard]] const PokemonSetCatalogPack* findPack(
+        std::string_view setId) const;
+
+    [[nodiscard]] bool empty() const noexcept { return packs.empty(); }
+
+    friend bool operator==(const PokemonSetCatalog&,
+                           const PokemonSetCatalog&) = default;
+};
+
+void to_json(nlohmann::json& j, const PokemonCatalogCard& c);
+void from_json(const nlohmann::json& j, PokemonCatalogCard& c);
+void to_json(nlohmann::json& j, const PokemonSetCatalogPack& p);
+void from_json(const nlohmann::json& j, PokemonSetCatalogPack& p);
+void to_json(nlohmann::json& j, const PokemonSetCatalog& c);
+void from_json(const nlohmann::json& j, PokemonSetCatalog& c);
+
+}  // namespace ccm

core/include/ccm/domain/YuGiOhBandaiCard.hpp

@@ -0,0 +1,37 @@
+#pragma once
+
+// YuGiOhBandaiCard - Bandai Carddass (pre-Konami) card model.
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/Set.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace ccm {
+
+struct YuGiOhBandaiCard {
+    std::uint32_t id{0};
+    std::uint8_t  amount{1};
+    std::string   name;
+    Set           set;
+    std::string   setNo;
+    std::string   rarity;
+    std::string   note;
+    std::vector<std::string> images;
+    Language      language{Language::Japanese};
+    Condition     condition{Condition::NearMint};
+    bool          holo{false};
+    bool          signed_{false};
+    bool          altered{false};
+
+    friend bool operator==(const YuGiOhBandaiCard&, const YuGiOhBandaiCard&) = default;
+};
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiCard& c);
+void from_json(const nlohmann::json& j, YuGiOhBandaiCard& c);
+
+}  // namespace ccm

core/include/ccm/domain/YuGiOhBandaiSetCatalog.hpp

@@ -0,0 +1,52 @@
+#pragma once
+
+// YuGiOhBandaiSetCatalog: offline pack → card checklist for Bandai set
+// completion. Filled from Yugipedia set-gallery wikitext and persisted at
+// `<dataStorage>/yugiohbandai/set-catalog.json`.
+
+#include <nlohmann/json.hpp>
+
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct YuGiOhBandaiCatalogCard {
+    std::string setNo;
+    std::string name;
+    std::string rarity;
+
+    friend bool operator==(const YuGiOhBandaiCatalogCard&,
+                           const YuGiOhBandaiCatalogCard&) = default;
+};
+
+struct YuGiOhBandaiSetCatalogPack {
+    std::string setId;
+    std::string setName;
+    std::vector<YuGiOhBandaiCatalogCard> cards;
+
+    friend bool operator==(const YuGiOhBandaiSetCatalogPack&,
+                           const YuGiOhBandaiSetCatalogPack&) = default;
+};
+
+struct YuGiOhBandaiSetCatalog {
+    std::vector<YuGiOhBandaiSetCatalogPack> packs;
+
+    [[nodiscard]] const YuGiOhBandaiSetCatalogPack* findPack(
+        std::string_view setId) const;
+
+    [[nodiscard]] bool empty() const noexcept { return packs.empty(); }
+
+    friend bool operator==(const YuGiOhBandaiSetCatalog&,
+                           const YuGiOhBandaiSetCatalog&) = default;
+};
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiCatalogCard& c);
+void from_json(const nlohmann::json& j, YuGiOhBandaiCatalogCard& c);
+void to_json(nlohmann::json& j, const YuGiOhBandaiSetCatalogPack& p);
+void from_json(const nlohmann::json& j, YuGiOhBandaiSetCatalogPack& p);
+void to_json(nlohmann::json& j, const YuGiOhBandaiSetCatalog& c);
+void from_json(const nlohmann::json& j, YuGiOhBandaiSetCatalog& c);
+
+}  // namespace ccm

core/include/ccm/domain/YuGiOhSetCatalog.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+// YuGiOhSetCatalog: offline pack → card checklist for Yu-Gi-Oh! set
+// completion. Filled from YGOPRODeck cardinfo.php (all-cards dump) and
+// persisted at `<dataStorage>/yugioh/set-catalog.json`.
+
+#include <nlohmann/json.hpp>
+
+#include <cstddef>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct YuGiOhCatalogCard {
+    std::string setNo;
+    std::string name;
+    /// YGOPRODeck `set_rarity` for this printing when known (optional;
+    /// older `set-catalog.json` files omit it).
+    std::string rarity{};
+
+    friend bool operator==(const YuGiOhCatalogCard&,
+                           const YuGiOhCatalogCard&) = default;
+};
+
+struct YuGiOhSetCatalogPack {
+    std::string setId;
+    std::string setName;
+    std::vector<YuGiOhCatalogCard> cards;
+
+    friend bool operator==(const YuGiOhSetCatalogPack&,
+                           const YuGiOhSetCatalogPack&) = default;
+};
+
+struct YuGiOhSetCatalog {
+    std::vector<YuGiOhSetCatalogPack> packs;
+
+    [[nodiscard]] const YuGiOhSetCatalogPack* findPack(
+        std::string_view setId) const;
+
+    [[nodiscard]] bool empty() const noexcept { return packs.empty(); }
+
+    friend bool operator==(const YuGiOhSetCatalog&,
+                           const YuGiOhSetCatalog&) = default;
+};
+
+void to_json(nlohmann::json& j, const YuGiOhCatalogCard& c);
+void from_json(const nlohmann::json& j, YuGiOhCatalogCard& c);
+void to_json(nlohmann::json& j, const YuGiOhSetCatalogPack& p);
+void from_json(const nlohmann::json& j, YuGiOhSetCatalogPack& p);
+void to_json(nlohmann::json& j, const YuGiOhSetCatalog& c);
+void from_json(const nlohmann::json& j, YuGiOhSetCatalog& c);
+
+}  // namespace ccm

core/include/ccm/games/digibattle99/DigiBattle99CardPreviewSource.hpp

@@ -35,6 +35,12 @@ public:
     Result<std::vector<AutoDetectedPrint>> detectPrintVariants(std::string_view name,
                                                                std::string_view setName) override;
 
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setName,
+                                            std::string_view setNo) override;
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setName,
+        std::string_view setNo) override;
+
     // Uppercase the alphabetic prefix of a Digi-Battle card number (bo-88 -> BO-88).
     // Does not invent zero-padding — CDN keys match API ids literally.
     static std::string normalizeCardNumber(std::string_view setNo);
@@ -58,7 +64,8 @@ public:
     static Result<std::vector<AutoDetectedPrint>>
         parsePrintVariants(const std::string& body,
                            std::string_view setName,
-                           std::string_view wantedCardName);
+                           std::string_view wantedCardName,
+                           std::string_view wantedSetNo = {});
 
 private:
     IHttpClient& http_;

core/include/ccm/games/digibattle99/DigiBattle99SetSource.hpp

@@ -3,12 +3,15 @@
 // DigiBattle99SetSource: ISetSource for Digimon Digi-Battle (1999 English).
 // digimoncard.io has no dedicated sets endpoint; we derive unique pack names
 // from a bulk search.php call scoped to series=Digimon Digi-Battle Card Game.
+// The same payload also builds the set-completion catalog (parseCatalog).
 
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/ports/IHttpClient.hpp"
 
 #include <string>
 #include <string_view>
+#include <vector>
 
 namespace ccm {
 
@@ -20,12 +23,21 @@ public:
 
     static constexpr const char* kSeries = "Digimon Digi-Battle Card Game";
 
+    struct FetchWithCatalog {
+        std::vector<Set>         sets;
+        DigiBattle99SetCatalog   catalog;
+    };
+
     explicit DigiBattle99SetSource(IHttpClient& http);
 
     Result<std::vector<Set>> fetchAll() override;
 
-    // Pure parser exposed for unit testing without a network round-trip.
+    // One HTTP round-trip producing both the set list and the pack catalog.
+    Result<FetchWithCatalog> fetchAllWithCatalog();
+
+    // Pure parsers exposed for unit testing without a network round-trip.
     static Result<std::vector<Set>> parseResponse(const std::string& body);
+    static Result<DigiBattle99SetCatalog> parseCatalog(const std::string& body);
 
     // Stable Set.id from a pack display name (ASCII lower, non-alnum -> '-').
     static std::string slugifyPackName(std::string_view packName);

core/include/ccm/games/pokemon/PokemonCardPreviewSource.hpp

@@ -1,11 +1,9 @@
 #pragma once
 
-// PokemonCardPreviewSource: ICardPreviewSource implementation for the Pokemon
-// TCG. Calls the Pokemon TCG search endpoint at
-//   https://api.pokemontcg.io/v2/cards?q=name:"<name>" set.id:<setId> number:<setNo>
-// and returns `data[0].images.large` (with `images.small` as a graceful
-// fallback). Mirrors the established `getImage` flow in
-// `src/components/pokemon/SelectedPokemonPanel.tsx`.
+// PokemonCardPreviewSource: West Pokemon previews via TCGdex EN.
+// Prefers GET /v2/en/cards/{setId}-{localId}, then filtered card search, then
+// set-detail name match for auto-detect. Image URLs append /high.png (wxImage
+// decodes PNG, not webp).
 
 #include "ccm/ports/ICardPreviewSource.hpp"
 #include "ccm/ports/IHttpClient.hpp"
@@ -31,32 +29,47 @@ public:
     Result<std::vector<AutoDetectedPrint>> detectPrintVariants(std::string_view name,
                                                                std::string_view setId) override;
 
-    // Build the fully URL-encoded Pokemon TCG search URL for the given card.
-    // Exposed for unit testing and to keep encoding rules in one place.
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setId,
+                                            std::string_view setNo) override;
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setId,
+        std::string_view setNo) override;
+
+    // Strip everything after the first '/' (e.g. "4/102" -> "4").
+    static std::string normalizeCollectorNumber(std::string_view setNo);
+
+    static std::string buildCardByIdUrl(std::string_view setId, std::string_view setNo);
+    static std::string buildSetDetailUrl(std::string_view setId);
     static std::string buildSearchUrl(std::string_view name,
                                       std::string_view setId,
                                       std::string_view setNo);
+    static std::string imageUrlFromBase(std::string_view imageBase);
 
-    // Slimmer search URL for auto-detect: omits the number clause and asks the
-    // API for only the fields the print-variant parser needs.
-    static std::string buildDetectSearchUrl(std::string_view name,
-                                            std::string_view setId);
+    struct SetCardRow {
+        std::string localId;
+        std::string name;
+        std::string imageBase;
+        std::string rarity;
+    };
+
+    static Result<std::vector<SetCardRow>, PreviewLookupError>
+        parseSetCards(const std::string& body);
 
-    // Parse a Pokemon TCG /v2/cards response body and pull out the image URL
-    // for the first matching card. Prefers `images.large`, falls back to
-    // `images.small`. Errors are classified:
-    //   - JSON parse failure or missing/non-array `data` => Transient.
-    //   - Empty `data` array or missing image variants => NotFound.
     static Result<std::string, PreviewLookupError>
-        parseResponse(const std::string& body);
+        parseCardByIdResponse(const std::string& body);
+
+    // Parse a slim TCGdex cards-array search response; prefer first hit with image.
+    static Result<std::string, PreviewLookupError>
+        parseSearchResponse(const std::string& body);
 
-    // Enumerate distinct collector numbers (and rarities) for an exact card
-    // name inside the chosen set. Exposed for unit testing without HTTP.
     static Result<std::vector<AutoDetectedPrint>>
         parsePrintVariants(const std::string& body,
                            std::string_view setId,
                            std::string_view wantedCardName);
 
+    // Parse TCGdex card-by-id JSON into print metadata (name + localId + rarity).
+    static Result<AutoDetectedPrint> parsePrintFromCardById(const std::string& body);
+
 private:
     IHttpClient& http_;
 };

core/include/ccm/games/pokemon/PokemonCollectionSetSync.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+// Sync Pokemon collection cards against freshly fetched set lists:
+// - West: canonicalize legacy pokemontcg set ids, then refresh name/date
+// - Asia: refresh name/date when the set id is present in the Asia list
+
+#include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/Set.hpp"
+
+#include <cstddef>
+#include <vector>
+
+namespace ccm {
+
+// Mutates cards in place. Returns how many cards changed at least one set field.
+[[nodiscard]] std::size_t syncPokemonCollectionSets(
+    std::vector<PokemonCard>& cards,
+    const std::vector<Set>&   westSets,
+    const std::vector<Set>&   asiaSets);
+
+}  // namespace ccm

core/include/ccm/games/pokemon/PokemonGameModule.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
 // PokemonGameModule: IGameModule for the Pokemon TCG. Owns its set source
-// and card preview source, both backed by api.pokemontcg.io/v2.
+// and card preview source, both backed by TCGdex EN (api.tcgdex.net/v2/en).
 
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/games/pokemon/PokemonCardPreviewSource.hpp"

core/include/ccm/games/pokemon/PokemonSetSource.hpp

@@ -1,27 +1,45 @@
 #pragma once
 
-// PokemonSetSource: ISetSource implementation for the Pokemon TCG.
-// Calls the Pokemon TCG API at https://api.pokemontcg.io/v2/sets, maps the
-// response into our `Set` domain type, and sorts by release date ascending.
-// The Pokemon TCG API already returns `releaseDate` in `YYYY/MM/DD` format,
-// so no rewriting is needed (unlike Scryfall's `released_at`).
-// Behavior matches `pokemon/set_services.rs::update_sets`.
+// PokemonSetSource: ISetSource for West Pokemon via TCGdex EN
+// (https://api.tcgdex.net/v2/en). List endpoint returns a slim array; release
+// dates and set-completion checklists come from per-set detail GETs.
 
+#include "ccm/domain/PokemonSetCatalog.hpp"
+#include "ccm/domain/Set.hpp"
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/ports/IHttpClient.hpp"
 
+#include <string>
+#include <string_view>
+#include <vector>
+
 namespace ccm {
 
 class PokemonSetSource final : public ISetSource {
 public:
-    static constexpr const char* kEndpoint = "https://api.pokemontcg.io/v2/sets";
+    static constexpr const char* kListEndpoint = "https://api.tcgdex.net/v2/en/sets";
+
+    struct FetchWithCatalog {
+        std::vector<Set>   sets;
+        PokemonSetCatalog  catalog;
+    };
 
     explicit PokemonSetSource(IHttpClient& http);
 
     Result<std::vector<Set>> fetchAll() override;
 
-    // Pure parser exposed for unit testing without a network round-trip.
-    static Result<std::vector<Set>> parseResponse(const std::string& body);
+    // List + per-set detail (cards + release date) for the offline checklist.
+    Result<FetchWithCatalog> fetchAllWithCatalog();
+
+    // Pure parsers exposed for unit testing without a network round-trip.
+    static Result<std::vector<Set>> parseListResponse(const std::string& body);
+    static Result<std::string> parseReleaseDate(const std::string& detailBody);
+    static std::string rewriteReleaseDate(std::string_view isoDate);
+    static std::string buildSetDetailUrl(std::string_view setId);
+
+    static Result<PokemonSetCatalogPack> parseCatalogPackFromSetDetail(
+        const std::string& detailBody,
+        const Set&         set);
 
 private:
     IHttpClient& http_;

core/include/ccm/games/pokemon/PokemonWestSetId.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+// Canonicalize legacy pokemontcg.io West set ids to TCGdex EN ids.
+// Identity when the id is already TCGdex (or unknown). Asia set ids must not
+// be passed through this helper.
+
+#include <string>
+#include <string_view>
+
+namespace ccm {
+
+// Returns the TCGdex EN set id for a West Pokemon card.set.id. Unknown ids
+// and ids that already match TCGdex are returned unchanged.
+[[nodiscard]] std::string canonicalizeWestSetId(std::string_view setId);
+
+}  // namespace ccm

core/include/ccm/games/pokemonjp/JapanesePokemonCardPreviewSource.hpp

@@ -29,6 +29,12 @@ public:
     Result<std::vector<AutoDetectedPrint>> detectPrintVariants(std::string_view name,
                                                                std::string_view setId) override;
 
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setId,
+                                            std::string_view setNo) override;
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setId,
+        std::string_view setNo) override;
+
     static std::string normalizeLocalId(std::string_view setNo);
     static std::string buildSetDetailUrl(std::string_view setId);
     static std::string buildCardUrl(std::string_view setId, std::string_view localId);
@@ -60,6 +66,15 @@ public:
                                        std::string_view wantedCardName,
                                        const JapanesePokemonEnCatalog& catalog);
 
+    // Reverse lookup: set + localId → name via catalog (no HTTP).
+    static Result<std::vector<AutoDetectedPrint>>
+        detectVariantsBySetNoFromCatalog(std::string_view setId,
+                                         std::string_view localId,
+                                         const JapanesePokemonEnCatalog& catalog);
+
+    // Parse TCGdex JA card-by-id JSON into print metadata.
+    static Result<AutoDetectedPrint> parsePrintFromCardResponse(const std::string& body);
+
 private:
     IHttpClient& http_;
     const JapanesePokemonEnCatalog& catalog_;

core/include/ccm/games/pokemonjp/JapanesePokemonEnCatalog.hpp

@@ -54,6 +54,10 @@ public:
 
     [[nodiscard]] bool hasPrintsForSet(std::string_view setId) const noexcept;
 
+    // All prints for a set (catalog gap-fill / set-completion checklists).
+    [[nodiscard]] std::vector<JapanesePokemonPrintEnInfo>
+        printsForSet(std::string_view setId) const;
+
     // TCGPlayer product-image CDN URL for classic JA gap-fill.
     [[nodiscard]] static std::string tcgplayerImageUrl(std::string_view productId);
 

core/include/ccm/games/pokemonjp/JapanesePokemonSetSource.hpp

@@ -1,22 +1,37 @@
 #pragma once
 
 // JapanesePokemonSetSource: TCGdex ja set list + per-set detail for release
-// dates. English display names come from JapanesePokemonEnCatalog when present.
+// dates and set-completion checklists. English display names come from
+// JapanesePokemonEnCatalog when present.
 
+#include "ccm/domain/PokemonSetCatalog.hpp"
+#include "ccm/domain/Set.hpp"
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/games/pokemonjp/JapanesePokemonEnCatalog.hpp"
 #include "ccm/ports/IHttpClient.hpp"
 
+#include <string>
+#include <string_view>
+#include <vector>
+
 namespace ccm {
 
 class JapanesePokemonSetSource final : public ISetSource {
 public:
     static constexpr const char* kListEndpoint = "https://api.tcgdex.net/v2/ja/sets";
 
+    struct FetchWithCatalog {
+        std::vector<Set>   sets;
+        PokemonSetCatalog  catalog;
+    };
+
     JapanesePokemonSetSource(IHttpClient& http, const JapanesePokemonEnCatalog& catalog);
 
     Result<std::vector<Set>> fetchAll() override;
 
+    // List + per-set detail (cards + release date) + EN catalog gap-fill.
+    Result<FetchWithCatalog> fetchAllWithCatalog();
+
     void augmentCachedSets(std::vector<Set>& sets) const override;
 
     // Pure parsers for hermetic tests.
@@ -28,6 +43,16 @@ public:
     static std::string rewriteReleaseDate(std::string_view isoDate);
     static std::string buildSetDetailUrl(std::string_view setId);
 
+    // Build one pack checklist from a set-detail body, then gap-fill from catalog.
+    static Result<PokemonSetCatalogPack> parseCatalogPackFromSetDetail(
+        const std::string& detailBody,
+        const Set&         set,
+        const JapanesePokemonEnCatalog& enCatalog);
+
+    // Catalog-only pack (classic products with no TCGdex detail).
+    static PokemonSetCatalogPack catalogPackFromEnCatalog(
+        const Set& set, const JapanesePokemonEnCatalog& enCatalog);
+
     // Original-era theme decks / sheets omitted by TCGdex JA. Idempotent by id.
     static void appendMissingClassicProducts(std::vector<Set>& sets);
 

core/include/ccm/games/yugioh/YuGiOhCardPreviewSource.hpp

@@ -1,8 +1,11 @@
 #pragma once
 
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
 #include "ccm/ports/ICardPreviewSource.hpp"
 #include "ccm/ports/IHttpClient.hpp"
+#include "ccm/services/YuGiOhSetCatalogService.hpp"
 
+#include <optional>
 #include <string>
 #include <string_view>
 #include <vector>
@@ -25,6 +28,9 @@ namespace ccm {
 // that endpoint returns a richer set listing (with rarities and release
 // dates) than Yugipedia, and we don't need image data for it.
 //
+// Reverse lookup (set + setNo → name) uses the offline set-completion catalog
+// written by Sets → Update Yu-Gi-Oh! (`YuGiOhSetCatalogService`).
+//
 // Region policy: always English (EN/NA/EU/AU) regardless of the card's
 // stored Language. Localized scans are intentionally not queried so the user
 // sees a consistent, well-stocked gallery (EN scans are the most complete).
@@ -32,6 +38,12 @@ class YuGiOhCardPreviewSource final : public ICardPreviewSource {
 public:
     explicit YuGiOhCardPreviewSource(IHttpClient& http);
 
+    // Optional offline catalog for set+setNo → name reverse lookup. When null
+    // or empty, detectVariantsBySetNo returns a clear "Update Sets" error.
+    void setCatalogService(YuGiOhSetCatalogService* catalogStore) noexcept {
+        catalogStore_ = catalogStore;
+    }
+
     [[nodiscard]] bool supportsAutoDetectPrint() const noexcept override { return true; }
 
     Result<std::string, PreviewLookupError>
@@ -43,6 +55,12 @@ public:
     Result<std::vector<AutoDetectedPrint>> detectPrintVariants(std::string_view name,
                                                                std::string_view setId) override;
 
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setId,
+                                            std::string_view setNo) override;
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setId,
+        std::string_view setNo) override;
+
     // ---- Yugipedia helpers (image preview path) ----------------------------
 
     // Build the list of candidate Yugipedia file names to try, in priority
@@ -116,8 +134,29 @@ public:
                            std::string_view preferredSetName,
                            std::string_view wantedCardName);
 
+    // Offline reverse lookup against a set-completion catalog. `setId` is the
+    // pack's set code (e.g. "LOB"); `setNo` may be digits ("005") or a full
+    // collector code ("LOB-005" / "LOB-EN005").
+    static Result<std::vector<AutoDetectedPrint>>
+        detectVariantsBySetNoFromCatalog(const YuGiOhSetCatalog& catalog,
+                                         std::string_view setId,
+                                         std::string_view setNo);
+
+    // YGOPRODeck cardset= dump filtered by collector digits (HTTP fallback when
+    // the offline catalog is missing or has no match).
+    static Result<std::vector<AutoDetectedPrint>>
+        detectVariantsBySetNoFromCardset(const std::string& body,
+                                         std::string_view preferredSetName,
+                                         std::string_view setNo);
+
+    static std::string buildCardsetOnlyUrl(std::string_view setName);
+
 private:
-    IHttpClient& http_;
+    IHttpClient&               http_;
+    YuGiOhSetCatalogService*   catalogStore_{nullptr};
+    // Cached offline catalog so reverse auto-detect does not re-parse a
+    // multi-MB JSON file on every button click.
+    mutable std::optional<YuGiOhSetCatalog> catalogCache_;
 };
 
 }  // namespace ccm

core/include/ccm/games/yugioh/YuGiOhGameModule.hpp

@@ -3,6 +3,7 @@
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/games/yugioh/YuGiOhCardPreviewSource.hpp"
 #include "ccm/games/yugioh/YuGiOhSetSource.hpp"
+#include "ccm/services/YuGiOhSetCatalogService.hpp"
 
 namespace ccm {
 
@@ -17,6 +18,15 @@ public:
     ISetSource&         setSource()          override { return setSource_; }
     ICardPreviewSource* cardPreviewSource() noexcept override { return &previewSource_; }
 
+    // Wire offline set catalog for set+setNo → name reverse auto-detect.
+    void setCatalogService(YuGiOhSetCatalogService* catalogStore) noexcept {
+        previewSource_.setCatalogService(catalogStore);
+    }
+
+    [[nodiscard]] YuGiOhCardPreviewSource& previewSource() noexcept {
+        return previewSource_;
+    }
+
 private:
     YuGiOhSetSource          setSource_;
     YuGiOhCardPreviewSource  previewSource_;

core/include/ccm/games/yugioh/YuGiOhSetSource.hpp

@@ -1,21 +1,45 @@
 #pragma once
 
 // YuGiOhSetSource: ISetSource implementation for Yu-Gi-Oh via YGOPRODeck.
+// Sets come from cardsets.php; the set-completion catalog is built from the
+// unfiltered cardinfo.php dump (card_sets[] per card).
 
+#include "ccm/domain/Set.hpp"
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
 #include "ccm/games/IGameModule.hpp"
 #include "ccm/ports/IHttpClient.hpp"
 
+#include <string>
+#include <vector>
+
 namespace ccm {
 
 class YuGiOhSetSource final : public ISetSource {
 public:
     static constexpr const char* kEndpoint = "https://db.ygoprodeck.com/api/v7/cardsets.php";
+    static constexpr const char* kCardInfoEndpoint =
+        "https://db.ygoprodeck.com/api/v7/cardinfo.php";
+
+    struct FetchWithCatalog {
+        std::vector<Set>   sets;
+        YuGiOhSetCatalog   catalog;
+    };
 
     explicit YuGiOhSetSource(IHttpClient& http);
 
     Result<std::vector<Set>> fetchAll() override;
+
+    // Two HTTP round-trips: cardsets.php for the set list, cardinfo.php for
+    // the pack checklist catalog.
+    Result<FetchWithCatalog> fetchAllWithCatalog();
+
     static Result<std::vector<Set>> parseResponse(const std::string& body);
 
+    // Build the offline checklist from a cardinfo.php body, resolving pack
+    // ids against the already-parsed sets list (by set_name → Set.id).
+    static Result<YuGiOhSetCatalog> parseCatalog(const std::string&          body,
+                                                 const std::vector<Set>&     sets);
+
 private:
     IHttpClient& http_;
 };

core/include/ccm/games/yugiohbandai/YuGiOhBandaiCardPreviewSource.hpp

@@ -0,0 +1,82 @@
+#pragma once
+
+// YuGiOhBandaiCardPreviewSource: Yugipedia pageimages + SMW ask for Bandai
+// Carddass previews and auto-detect (by English name or Bandai number).
+
+#include "ccm/ports/ICardPreviewSource.hpp"
+#include "ccm/ports/IHttpClient.hpp"
+
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+class YuGiOhBandaiCardPreviewSource final : public ICardPreviewSource {
+public:
+    explicit YuGiOhBandaiCardPreviewSource(IHttpClient& http);
+
+    [[nodiscard]] bool supportsAutoDetectPrint() const noexcept override { return true; }
+
+    Result<std::string, PreviewLookupError>
+        fetchImageUrl(std::string_view name,
+                      std::string_view setId,
+                      std::string_view setNo) override;
+
+    Result<AutoDetectedPrint> detectFirstPrint(std::string_view name,
+                                               std::string_view setId) override;
+
+    Result<std::vector<AutoDetectedPrint>> detectPrintVariants(std::string_view name,
+                                                               std::string_view setId) override;
+
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setId,
+                                            std::string_view setNo) override;
+
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setId,
+        std::string_view setNo) override;
+
+    // Prefer "<Name> (Bandai)" / English / Sealdass page depending on setId.
+    static std::string preferredPageTitle(std::string_view name,
+                                          std::string_view setId,
+                                          std::string_view setNo);
+
+    static std::string buildPageImagesUrl(std::string_view pageTitle);
+
+    static std::string buildAskByNameUrl(std::string_view englishName);
+
+    static std::string buildAskByNumberUrl(std::string_view setNo);
+
+    // True for Jump/Toei promo codes (J1, TA2, …). Yugipedia's SMW
+    // `Bandai number` property is numeric-only, so these must use the
+    // promotional gallery instead of `action=ask`.
+    [[nodiscard]] static bool isAlphanumericPromoNumber(std::string_view setNo);
+
+    static Result<std::vector<AutoDetectedPrint>>
+        parsePromoGalleryResponse(const std::string& body,
+                                  std::string_view wantedSetNo);
+
+    static Result<std::string, PreviewLookupError>
+        parsePageImagesResponse(const std::string& body);
+
+    static Result<std::vector<AutoDetectedPrint>>
+        parseAskResponse(const std::string& body,
+                         std::string_view preferredSetId,
+                         std::string_view wantedSetNo = {});
+
+    static AutoDetectedPrint enrichPrint(AutoDetectedPrint print,
+                                         std::string_view pageTitle);
+
+private:
+    Result<std::string, PreviewLookupError> fetchPageImage(std::string_view pageTitle);
+
+    Result<std::vector<AutoDetectedPrint>> askByName(std::string_view name,
+                                                     std::string_view setId);
+
+    Result<std::vector<AutoDetectedPrint>> askByNumber(std::string_view setId,
+                                                       std::string_view setNo);
+
+    IHttpClient& http_;
+};
+
+}  // namespace ccm

core/include/ccm/games/yugiohbandai/YuGiOhBandaiGameModule.hpp

@@ -0,0 +1,29 @@
+#pragma once
+
+// YuGiOhBandaiGameModule: Bandai Carddass via Yugipedia.
+
+#include "ccm/games/IGameModule.hpp"
+#include "ccm/games/yugiohbandai/YuGiOhBandaiCardPreviewSource.hpp"
+#include "ccm/games/yugiohbandai/YuGiOhBandaiSetSource.hpp"
+
+namespace ccm {
+
+class YuGiOhBandaiGameModule final : public IGameModule {
+public:
+    explicit YuGiOhBandaiGameModule(IHttpClient& http);
+
+    [[nodiscard]] Game        id() const noexcept override { return Game::YuGiOhBandai; }
+    [[nodiscard]] std::string dirName()     const override { return "yugiohbandai"; }
+    [[nodiscard]] std::string displayName() const override { return "Yu-Gi-Oh! (Bandai)"; }
+
+    ISetSource&         setSource()          override { return setSource_; }
+    ICardPreviewSource* cardPreviewSource() noexcept override { return &previewSource_; }
+
+    YuGiOhBandaiSetSource& bandaiSetSource() noexcept { return setSource_; }
+
+private:
+    YuGiOhBandaiSetSource         setSource_;
+    YuGiOhBandaiCardPreviewSource previewSource_;
+};
+
+}  // namespace ccm

core/include/ccm/games/yugiohbandai/YuGiOhBandaiSetSource.hpp

@@ -0,0 +1,67 @@
+#pragma once
+
+// YuGiOhBandaiSetSource: hardcoded Bandai set manifest + Yugipedia gallery
+// wikitext catalogs for set completion.
+
+#include "ccm/domain/Set.hpp"
+#include "ccm/domain/YuGiOhBandaiSetCatalog.hpp"
+#include "ccm/games/IGameModule.hpp"
+#include "ccm/ports/IHttpClient.hpp"
+
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+class YuGiOhBandaiSetSource final : public ISetSource {
+public:
+    struct FetchWithCatalog {
+        std::vector<Set>         sets;
+        YuGiOhBandaiSetCatalog   catalog;
+    };
+
+    struct SetManifestEntry {
+        const char* id;
+        const char* name;
+        const char* releaseDate;  // YYYY/MM/DD
+        const char* galleryPage;  // Yugipedia page title (may be shared)
+        // For the shared promo gallery: keep cards whose setNo starts with
+        // this prefix (empty = keep all from that page into this pack).
+        const char* setNoPrefix;
+    };
+
+    explicit YuGiOhBandaiSetSource(IHttpClient& http);
+
+    Result<std::vector<Set>> fetchAll() override;
+
+    Result<FetchWithCatalog> fetchAllWithCatalog();
+
+    [[nodiscard]] static const std::vector<SetManifestEntry>& setManifest();
+
+    static Result<std::vector<Set>> parseResponse(const std::string& /*unused*/);
+
+    // Parse one gallery wikitext body into checklist cards.
+    static Result<std::vector<YuGiOhBandaiCatalogCard>>
+    parseGalleryWikitext(const std::string& wikitext);
+
+    // Map a Bandai number string to a set id (ban1/ban2/ban3/promos/sealdass).
+    static std::string setIdForNumber(std::string_view setNo);
+
+    static std::string setNameForId(std::string_view setId);
+
+    // Normalize printed numbers: strip leading zeros on pure-decimal values;
+    // uppercase letter prefixes (j1 → J1). Sealdass stays unpadded decimal.
+    static std::string normalizeCardNumber(std::string_view setNo);
+
+    static std::string expandRarityCode(std::string_view code);
+
+    static std::string buildGalleryParseUrl(std::string_view pageTitle);
+
+    static std::string englishNameFromGalleryTitle(std::string_view pageTitle);
+
+private:
+    IHttpClient& http_;
+};
+
+}  // namespace ccm

core/include/ccm/ports/ICardPreviewSource.hpp

@@ -19,6 +19,12 @@ namespace ccm {
 struct AutoDetectedPrint {
     std::string setNo;
     std::string rarity;
+    // Optional fields used by games that resolve set/name/language during
+    // auto-detect (e.g. Yu-Gi-Oh! Bandai). Existing games leave them empty.
+    std::string name;
+    std::string setId;
+    std::string setName;
+    std::string language;  // Language enum spelling when known ("Japanese" / "English")
 };
 
 // Classified error returned by ICardPreviewSource::fetchImageUrl. The kind
@@ -79,6 +85,23 @@ public:
         return Result<std::vector<AutoDetectedPrint>>::err(
             "Print variant listing not supported by this game.");
     }
+
+    // Optional lookup by set + collector / Bandai number (fills name + rarity).
+    // `setId` uses the same meaning as detectPrintVariants for the game
+    // (set id for Pokémon/Bandai; set display name for Digi-Battle; set code
+    // id for Yu-Gi-Oh! catalog reverse lookup).
+    virtual Result<AutoDetectedPrint> detectBySetNo(std::string_view /*setId*/,
+                                                    std::string_view /*setNo*/) {
+        return Result<AutoDetectedPrint>::err(
+            "Detect-by-number not supported by this game.");
+    }
+
+    virtual Result<std::vector<AutoDetectedPrint>>
+        detectVariantsBySetNo(std::string_view /*setId*/,
+                              std::string_view /*setNo*/) {
+        return Result<std::vector<AutoDetectedPrint>>::err(
+            "Detect-by-number variants not supported by this game.");
+    }
 };
 
 }  // namespace ccm

core/include/ccm/services/CardFilter.hpp

@@ -23,6 +23,7 @@
 #include "ccm/domain/JapanesePokemonCard.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 
 #include <string_view>
@@ -47,6 +48,10 @@ namespace ccm {
 [[nodiscard]] bool matchesDigiBattle99Filter(const DigiBattle99Card& card,
                                              std::string_view filter);
 
+// Bandai: name, set.name, setNo, rarity, language, condition, amount, note.
+[[nodiscard]] bool matchesYuGiOhBandaiFilter(const YuGiOhBandaiCard& card,
+                                             std::string_view filter);
+
 // Japanese Pokemon mirrors Pokemon searchable columns (includes setNo).
 [[nodiscard]] bool matchesJapanesePokemonFilter(const JapanesePokemonCard& card,
                                                 std::string_view filter);

core/include/ccm/services/CardPreviewService.hpp

@@ -81,6 +81,15 @@ public:
                                                                std::string_view name,
                                                                std::string_view setId);
 
+    Result<AutoDetectedPrint> detectBySetNo(Game game,
+                                            std::string_view setId,
+                                            std::string_view setNo);
+
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        Game game,
+        std::string_view setId,
+        std::string_view setNo);
+
     // Download image bytes from a fully-qualified URL without going through
     // per-game preview-source resolution. Cached by URL (same LRU bound).
     Result<std::string> fetchImageBytesByUrl(std::string_view url);

core/include/ccm/services/CardSorter.hpp

@@ -20,6 +20,7 @@
 #include "ccm/domain/JapanesePokemonCard.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 
 #include <vector>
@@ -82,6 +83,20 @@ enum class DigiBattle99SortColumn {
     Note,
 };
 
+enum class YuGiOhBandaiSortColumn {
+    Name,
+    SetReleaseDate,
+    SetNo,
+    Rarity,
+    Language,
+    Condition,
+    Amount,
+    Holo,
+    Signed,
+    Altered,
+    Note,
+};
+
 // Japanese Pokemon mirrors Pokemon columns.
 enum class JapanesePokemonSortColumn {
     Name,
@@ -107,6 +122,9 @@ void sortYuGiOhCards(std::vector<YuGiOhCard>& cards, YuGiOhSortColumn column,
 void sortDigiBattle99Cards(std::vector<DigiBattle99Card>& cards,
                            DigiBattle99SortColumn column,
                            bool ascending);
+void sortYuGiOhBandaiCards(std::vector<YuGiOhBandaiCard>& cards,
+                           YuGiOhBandaiSortColumn column,
+                           bool ascending);
 void sortJapanesePokemonCards(std::vector<JapanesePokemonCard>& cards,
                               JapanesePokemonSortColumn column,
                               bool ascending);

core/include/ccm/services/CollectionService.hpp

@@ -80,6 +80,15 @@ public:
         return repo_.save(game, map);
     }
 
+    // Replace the entire collection map in one save (e.g. after bulk set-id sync).
+    Result<void> saveAll(Game game, std::vector<TCard> cards) {
+        Map map;
+        for (auto& card : cards) {
+            map.insert_or_assign(card.id, std::move(card));
+        }
+        return repo_.save(game, map);
+    }
+
     // Remove the card with the given id. Also deletes any associated images
     // via the IImageStore (best-effort - image removal failures are logged in
     // the error string but the card itself is still purged from the JSON).

core/include/ccm/services/DigiBattle99SetCatalogService.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+// DigiBattle99SetCatalogService: load/save digibattle99/set-catalog.json under
+// the configured dataStorage path.
+
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
+#include "ccm/domain/Enums.hpp"
+#include "ccm/ports/IFileSystem.hpp"
+#include "ccm/services/ConfigService.hpp"
+#include "ccm/util/Result.hpp"
+
+#include <functional>
+#include <string>
+
+namespace ccm {
+
+class DigiBattle99SetCatalogService {
+public:
+    using DirNameFn = std::function<std::string(Game)>;
+
+    DigiBattle99SetCatalogService(IFileSystem& fs, ConfigService& config, DirNameFn dirName);
+
+    Result<DigiBattle99SetCatalog> load() const;
+    Result<void>                   save(const DigiBattle99SetCatalog& catalog);
+
+    [[nodiscard]] bool exists() const;
+
+private:
+    IFileSystem&   fs_;
+    ConfigService& config_;
+    DirNameFn      dirName_;
+
+    [[nodiscard]] std::filesystem::path catalogPath() const;
+};
+
+}  // namespace ccm

core/include/ccm/services/DigiBattle99SetCompletion.hpp

@@ -0,0 +1,59 @@
+#pragma once
+
+// Pure helpers: Digi-Battle set-completion progress and per-set checklists.
+// Ownership counts only when collection card.set.id matches the pack and the
+// normalized setNo appears in that pack's catalog. Duplicates / amount do not
+// inflate the numerator. An optional languageFilter restricts ownership to
+// cards of that language (packs with zero matches are omitted).
+
+#include "ccm/domain/DigiBattle99Card.hpp"
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
+#include "ccm/domain/Enums.hpp"
+
+#include <cstddef>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct DigiBattle99SetCompletionProgress {
+    std::string setId;
+    std::string setName;
+    std::size_t ownedUnique{0};
+    std::size_t total{0};
+
+    [[nodiscard]] int percent() const noexcept {
+        if (total == 0) return 0;
+        return static_cast<int>((ownedUnique * 100) / total);
+    }
+};
+
+struct DigiBattle99ChecklistEntry {
+    std::string setNo;
+    std::string name;
+    bool        owned{false};
+};
+
+// Distinct languages present in the collection, in allLanguages() order.
+[[nodiscard]] std::vector<Language>
+digiBattle99LanguagesInCollection(const std::vector<DigiBattle99Card>& collection);
+
+// Packs where the collection owns ≥1 card with matching set.id, ordered by
+// setName. Packs absent from the catalog are skipped. When languageFilter is
+// set, only cards of that language count toward ownership.
+[[nodiscard]] std::vector<DigiBattle99SetCompletionProgress>
+computeDigiBattle99SetCompletion(const std::vector<DigiBattle99Card>& collection,
+                                 const DigiBattle99SetCatalog&        catalog,
+                                 std::optional<Language> languageFilter = std::nullopt);
+
+// Full catalog checklist for one pack; owned flags from the collection.
+// When languageFilter is set, only cards of that language count as owned.
+[[nodiscard]] std::vector<DigiBattle99ChecklistEntry>
+digiBattle99ChecklistForSet(const std::vector<DigiBattle99Card>& collection,
+                            const DigiBattle99SetCatalog&        catalog,
+                            std::string_view                     setId,
+                            std::optional<Language> languageFilter = std::nullopt);
+
+}  // namespace ccm

core/include/ccm/services/PokemonSetCatalogService.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+// PokemonSetCatalogService: load/save pokemon/set-catalog-west.json and
+// pokemon/set-catalog-asia.json under the configured dataStorage path.
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/PokemonSetCatalog.hpp"
+#include "ccm/ports/IFileSystem.hpp"
+#include "ccm/services/ConfigService.hpp"
+#include "ccm/util/Result.hpp"
+
+#include <functional>
+#include <string>
+
+namespace ccm {
+
+class PokemonSetCatalogService {
+public:
+    using DirNameFn = std::function<std::string(Game)>;
+
+    PokemonSetCatalogService(IFileSystem& fs, ConfigService& config, DirNameFn dirName);
+
+    Result<PokemonSetCatalog> load(PokemonRegion region) const;
+    Result<void>              save(PokemonRegion region, const PokemonSetCatalog& catalog);
+
+    [[nodiscard]] bool exists(PokemonRegion region) const;
+
+private:
+    IFileSystem&   fs_;
+    ConfigService& config_;
+    DirNameFn      dirName_;
+
+    [[nodiscard]] std::filesystem::path catalogPath(PokemonRegion region) const;
+};
+
+}  // namespace ccm

core/include/ccm/services/PokemonSetCompletion.hpp

@@ -0,0 +1,73 @@
+#pragma once
+
+// Pure helpers: Pokemon set-completion progress and per-set checklists.
+// Ownership requires matching PokemonRegion for the pack (West vs Asia),
+// matching set.id, and a normalized collector number / localId. Duplicates /
+// amount / holo / firstEdition do not inflate the numerator. Optional
+// regionFilter and languageFilter restrict which cards count (packs with
+// zero matches are omitted).
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/PokemonSetCatalog.hpp"
+
+#include <cstddef>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct PokemonSetCompletionProgress {
+    PokemonRegion region{PokemonRegion::West};
+    std::string   setId;
+    std::string   setName;
+    std::string   releaseDate;  // YYYY/MM/DD from owned cards; may be empty
+    std::size_t   ownedUnique{0};
+    std::size_t   total{0};
+
+    [[nodiscard]] int percent() const noexcept {
+        if (total == 0) return 0;
+        return static_cast<int>((ownedUnique * 100) / total);
+    }
+};
+
+struct PokemonChecklistEntry {
+    std::string setNo;
+    std::string name;
+    bool        owned{false};
+};
+
+// Distinct languages present in the collection (optionally region-scoped),
+// in allLanguages() order.
+[[nodiscard]] std::vector<Language>
+pokemonLanguagesInCollection(const std::vector<PokemonCard>& collection,
+                             std::optional<PokemonRegion> regionFilter = std::nullopt);
+
+// Distinct regions that have ≥1 owned card matching a catalog pack.
+[[nodiscard]] std::vector<PokemonRegion>
+pokemonRegionsInCollection(const std::vector<PokemonCard>& collection,
+                           const PokemonSetCatalog&        westCatalog,
+                           const PokemonSetCatalog&        asiaCatalog);
+
+// Packs where the collection owns ≥1 matching card, ordered by releaseDate
+// then setName then region. When regionFilter is set, only that region's
+// catalog/cards count.
+[[nodiscard]] std::vector<PokemonSetCompletionProgress>
+computePokemonSetCompletion(const std::vector<PokemonCard>& collection,
+                            const PokemonSetCatalog&        westCatalog,
+                            const PokemonSetCatalog&        asiaCatalog,
+                            std::optional<PokemonRegion> regionFilter = std::nullopt,
+                            std::optional<Language>      languageFilter = std::nullopt);
+
+// Full catalog checklist for one pack; owned flags from the collection.
+[[nodiscard]] std::vector<PokemonChecklistEntry>
+pokemonChecklistForSet(const std::vector<PokemonCard>& collection,
+                       const PokemonSetCatalog&        westCatalog,
+                       const PokemonSetCatalog&        asiaCatalog,
+                       PokemonRegion                   region,
+                       std::string_view                setId,
+                       std::optional<Language> languageFilter = std::nullopt);
+
+}  // namespace ccm

core/include/ccm/services/SetService.hpp

@@ -27,6 +27,10 @@ public:
     // repository, and return the new list.
     Result<std::vector<Set>> updateSets(Game game);
 
+    // Persist an already-fetched set list (no HTTP). Used when a game-specific
+    // Update Sets path fetches sets + side payloads in one round-trip.
+    Result<void> saveSets(Game game, const std::vector<Set>& sets);
+
     // Cached read; returns an error if no local data exists yet.
     Result<std::vector<Set>> getSets(Game game);
 

core/include/ccm/services/YuGiOhBandaiSetCatalogService.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+// YuGiOhBandaiSetCatalogService: load/save yugiohbandai/set-catalog.json.
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/YuGiOhBandaiSetCatalog.hpp"
+#include "ccm/ports/IFileSystem.hpp"
+#include "ccm/services/ConfigService.hpp"
+#include "ccm/util/Result.hpp"
+
+#include <functional>
+#include <string>
+
+namespace ccm {
+
+class YuGiOhBandaiSetCatalogService {
+public:
+    using DirNameFn = std::function<std::string(Game)>;
+
+    YuGiOhBandaiSetCatalogService(IFileSystem& fs, ConfigService& config, DirNameFn dirName);
+
+    Result<YuGiOhBandaiSetCatalog> load() const;
+    Result<void>                   save(const YuGiOhBandaiSetCatalog& catalog);
+
+    [[nodiscard]] bool exists() const;
+
+private:
+    IFileSystem&   fs_;
+    ConfigService& config_;
+    DirNameFn      dirName_;
+
+    [[nodiscard]] std::filesystem::path catalogPath() const;
+};
+
+}  // namespace ccm

core/include/ccm/services/YuGiOhBandaiSetCompletion.hpp

@@ -0,0 +1,51 @@
+#pragma once
+
+// Pure helpers: Bandai set-completion progress and per-set checklists.
+// Ownership keys on (set.id, normalized setNo). Never name-only.
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
+#include "ccm/domain/YuGiOhBandaiSetCatalog.hpp"
+
+#include <cstddef>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct YuGiOhBandaiSetCompletionProgress {
+    std::string setId;
+    std::string setName;
+    std::size_t ownedUnique{0};
+    std::size_t total{0};
+
+    [[nodiscard]] int percent() const noexcept {
+        if (total == 0) return 0;
+        return static_cast<int>((ownedUnique * 100) / total);
+    }
+};
+
+struct YuGiOhBandaiChecklistEntry {
+    std::string setNo;
+    std::string name;
+    std::string rarity;
+    bool        owned{false};
+};
+
+[[nodiscard]] std::vector<Language>
+yuGiOhBandaiLanguagesInCollection(const std::vector<YuGiOhBandaiCard>& collection);
+
+[[nodiscard]] std::vector<YuGiOhBandaiSetCompletionProgress>
+computeYuGiOhBandaiSetCompletion(const std::vector<YuGiOhBandaiCard>& collection,
+                                 const YuGiOhBandaiSetCatalog&        catalog,
+                                 std::optional<Language> languageFilter = std::nullopt);
+
+[[nodiscard]] std::vector<YuGiOhBandaiChecklistEntry>
+yuGiOhBandaiChecklistForSet(const std::vector<YuGiOhBandaiCard>& collection,
+                            const YuGiOhBandaiSetCatalog&        catalog,
+                            std::string_view                     setId,
+                            std::optional<Language> languageFilter = std::nullopt);
+
+}  // namespace ccm

core/include/ccm/services/YuGiOhSetCatalogService.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+// YuGiOhSetCatalogService: load/save yugioh/set-catalog.json under the
+// configured dataStorage path.
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
+#include "ccm/ports/IFileSystem.hpp"
+#include "ccm/services/ConfigService.hpp"
+#include "ccm/util/Result.hpp"
+
+#include <functional>
+#include <string>
+
+namespace ccm {
+
+class YuGiOhSetCatalogService {
+public:
+    using DirNameFn = std::function<std::string(Game)>;
+
+    YuGiOhSetCatalogService(IFileSystem& fs, ConfigService& config, DirNameFn dirName);
+
+    Result<YuGiOhSetCatalog> load() const;
+    Result<void>             save(const YuGiOhSetCatalog& catalog);
+
+    [[nodiscard]] bool exists() const;
+
+private:
+    IFileSystem&   fs_;
+    ConfigService& config_;
+    DirNameFn      dirName_;
+
+    [[nodiscard]] std::filesystem::path catalogPath() const;
+};
+
+}  // namespace ccm

core/include/ccm/services/YuGiOhSetCompletion.hpp

@@ -0,0 +1,60 @@
+#pragma once
+
+// Pure helpers: Yu-Gi-Oh! set-completion progress and per-set checklists.
+// Ownership counts only when collection card.set.id matches the pack and the
+// printing slot matches a catalog setNo (ygoPrintingSlotsMatch). Duplicates /
+// amount / rarity / firstEdition do not inflate the numerator. An optional
+// languageFilter restricts ownership to cards of that language (packs with
+// zero matches are omitted).
+
+#include "ccm/domain/Enums.hpp"
+#include "ccm/domain/YuGiOhCard.hpp"
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
+
+#include <cstddef>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace ccm {
+
+struct YuGiOhSetCompletionProgress {
+    std::string setId;
+    std::string setName;
+    std::size_t ownedUnique{0};
+    std::size_t total{0};
+
+    [[nodiscard]] int percent() const noexcept {
+        if (total == 0) return 0;
+        return static_cast<int>((ownedUnique * 100) / total);
+    }
+};
+
+struct YuGiOhChecklistEntry {
+    std::string setNo;
+    std::string name;
+    bool        owned{false};
+};
+
+// Distinct languages present in the collection, in allLanguages() order.
+[[nodiscard]] std::vector<Language>
+yuGiOhLanguagesInCollection(const std::vector<YuGiOhCard>& collection);
+
+// Packs where the collection owns ≥1 card with matching set.id, ordered by
+// setName. Packs absent from the catalog are skipped. When languageFilter is
+// set, only cards of that language count toward ownership.
+[[nodiscard]] std::vector<YuGiOhSetCompletionProgress>
+computeYuGiOhSetCompletion(const std::vector<YuGiOhCard>& collection,
+                           const YuGiOhSetCatalog&         catalog,
+                           std::optional<Language> languageFilter = std::nullopt);
+
+// Full catalog checklist for one pack; owned flags from the collection.
+// When languageFilter is set, only cards of that language count as owned.
+[[nodiscard]] std::vector<YuGiOhChecklistEntry>
+yuGiOhChecklistForSet(const std::vector<YuGiOhCard>& collection,
+                      const YuGiOhSetCatalog&         catalog,
+                      std::string_view                setId,
+                      std::optional<Language> languageFilter = std::nullopt);
+
+}  // namespace ccm

core/include/ccm/util/CardLookupDetect.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+// Shared rule for bidirectional Set # Auto detect (name ↔ set number):
+// when both fields are filled, the field the user last edited is the lookup key.
+
+namespace ccm {
+
+enum class CardLookupEditField { None, Name, SetNo };
+
+// Returns true when Auto detect should run setNo → name (reverse).
+// `nameEmpty` / `setNoEmpty` are already trimmed/normalized by the caller.
+// When both are empty the result is false (caller shows a validation message).
+// When only one is filled, that direction wins. When both are filled, SetNo
+// wins only if it was the last edited lookup field; otherwise Name wins
+// (including `None`, matching the historical default).
+[[nodiscard]] inline bool preferDetectBySetNo(bool nameEmpty,
+                                              bool setNoEmpty,
+                                              CardLookupEditField lastEdited) noexcept {
+    if (nameEmpty) return !setNoEmpty;
+    if (setNoEmpty) return false;
+    return lastEdited == CardLookupEditField::SetNo;
+}
+
+}  // namespace ccm

core/include/ccm/util/SetNoNatural.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+// Natural (alphanumeric) ordering for collector / set numbers.
+// Digit runs compare as integers so "2" < "10" < "100"; non-digit runs use
+// ordinary string order (e.g. "SWSH001" < "SWSH002").
+
+#include <string_view>
+
+namespace ccm {
+
+// strcmp-style: <0 if a < b, 0 if equal (after natural + lex tie-break), >0 if a > b.
+[[nodiscard]] int compareSetNoNatural(std::string_view a, std::string_view b) noexcept;
+
+}  // namespace ccm

core/include/ccm/util/YuGiOhPrintingSlot.hpp

@@ -48,12 +48,39 @@ namespace ccm {
     return out;
 }
 
+// Digits from a full set code (after '-') or from a digits-only Set # field.
+[[nodiscard]] inline std::string ygoCollectorDigitsFromInput(std::string_view raw) {
+    const std::string_view s = trimAsciiSpaces(raw);
+    if (s.find('-') != std::string_view::npos) return ygoCollectorDigitsOnly(s);
+    std::string out;
+    out.reserve(s.size());
+    for (unsigned char c : s) {
+        if (std::isdigit(c) != 0) out.push_back(static_cast<char>(c));
+    }
+    return out;
+}
+
+[[nodiscard]] inline std::string ygoDigitsStripLeadingZeros(std::string digits) {
+    std::size_t i = 0;
+    while (i + 1 < digits.size() && digits[i] == '0') ++i;
+    if (i > 0) digits.erase(0, i);
+    return digits;
+}
+
+// True when both designate the same collector number, ignoring leading zeros
+// ("5" == "005") and accepting either a full set code or digits-only input.
+[[nodiscard]] inline bool ygoCollectorDigitsEqual(std::string_view a,
+                                                    std::string_view b) {
+    return ygoDigitsStripLeadingZeros(ygoCollectorDigitsFromInput(a)) ==
+           ygoDigitsStripLeadingZeros(ygoCollectorDigitsFromInput(b));
+}
+
 // True when both strings designate the same printed slot: same abbreviation
 // before the first '-' (ASCII case-insensitive) and the same ordered digit run
 // extracted from everything after that dash.
 [[nodiscard]] inline bool ygoPrintingSlotsMatch(std::string_view a, std::string_view b) {
     if (ygoAbbrevBeforeDash(a) != ygoAbbrevBeforeDash(b)) return false;
-    return ygoCollectorDigitsOnly(a) == ygoCollectorDigitsOnly(b);
+    return ygoCollectorDigitsEqual(a, b);
 }
 
 // YGOPRODeck sometimes lists European alternate numbering alongside NA prints under

core/src/domain/DigiBattle99SetCatalog.cpp

@@ -0,0 +1,40 @@
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
+
+namespace ccm {
+
+const DigiBattle99SetCatalogPack* DigiBattle99SetCatalog::findPack(
+    std::string_view setId) const {
+    for (const auto& pack : packs) {
+        if (pack.setId == setId) return &pack;
+    }
+    return nullptr;
+}
+
+void to_json(nlohmann::json& j, const DigiBattle99CatalogCard& c) {
+    j = nlohmann::json{{"setNo", c.setNo}, {"name", c.name}};
+}
+
+void from_json(const nlohmann::json& j, DigiBattle99CatalogCard& c) {
+    j.at("setNo").get_to(c.setNo);
+    j.at("name").get_to(c.name);
+}
+
+void to_json(nlohmann::json& j, const DigiBattle99SetCatalogPack& p) {
+    j = nlohmann::json{{"id", p.setId}, {"name", p.setName}, {"cards", p.cards}};
+}
+
+void from_json(const nlohmann::json& j, DigiBattle99SetCatalogPack& p) {
+    j.at("id").get_to(p.setId);
+    j.at("name").get_to(p.setName);
+    j.at("cards").get_to(p.cards);
+}
+
+void to_json(nlohmann::json& j, const DigiBattle99SetCatalog& c) {
+    j = nlohmann::json{{"packs", c.packs}};
+}
+
+void from_json(const nlohmann::json& j, DigiBattle99SetCatalog& c) {
+    j.at("packs").get_to(c.packs);
+}
+
+}  // namespace ccm

core/src/domain/Enums.cpp

@@ -17,6 +17,7 @@ std::string_view to_string(Game g) noexcept {
         case Game::Pokemon:          return "Pokemon";
         case Game::YuGiOh:           return "YuGiOh";
         case Game::DigiBattle99:     return "DigiBattle99";
+        case Game::YuGiOhBandai:     return "YuGiOhBandai";
         case Game::JapanesePokemon:  return "JapanesePokemon";
     }
     CCM_UNREACHABLE();
@@ -72,6 +73,7 @@ std::optional<Game> gameFromString(std::string_view s) noexcept {
     if (s == "Pokemon")         return Game::Pokemon;
     if (s == "YuGiOh")          return Game::YuGiOh;
     if (s == "DigiBattle99")    return Game::DigiBattle99;
+    if (s == "YuGiOhBandai")    return Game::YuGiOhBandai;
     if (s == "JapanesePokemon") return Game::JapanesePokemon;
     return std::nullopt;
 }
@@ -115,9 +117,10 @@ std::optional<Theme> themeFromString(std::string_view s) noexcept {
     return std::nullopt;
 }
 
-const std::array<Game, 4>& allGames() noexcept {
-    static constexpr std::array<Game, 4> v{
-        Game::Magic, Game::Pokemon, Game::YuGiOh, Game::DigiBattle99};
+const std::array<Game, 5>& allGames() noexcept {
+    static constexpr std::array<Game, 5> v{
+        Game::Magic, Game::Pokemon, Game::YuGiOh, Game::YuGiOhBandai,
+        Game::DigiBattle99};
     return v;
 }
 

core/src/domain/PokemonCard.cpp

@@ -1,5 +1,7 @@
 #include "ccm/domain/PokemonCard.hpp"
 
+#include "ccm/games/pokemon/PokemonWestSetId.hpp"
+
 namespace ccm {
 
 void to_json(nlohmann::json& j, const PokemonCard& c) {
@@ -37,6 +39,11 @@ void from_json(const nlohmann::json& j, PokemonCard& c) {
     j.at("altered").get_to(c.altered);
     // Missing `region` defaults to West so pre-merge West-only files still load.
     c.region = j.value("region", PokemonRegion::West);
+    // Migrate legacy pokemontcg.io West set ids to TCGdex EN on load so the
+    // next collection save persists canonical ids. Asia ids are untouched.
+    if (c.region == PokemonRegion::West && !c.set.id.empty()) {
+        c.set.id = canonicalizeWestSetId(c.set.id);
+    }
 }
 
 }  // namespace ccm

core/src/domain/PokemonSetCatalog.cpp

@@ -0,0 +1,39 @@
+#include "ccm/domain/PokemonSetCatalog.hpp"
+
+namespace ccm {
+
+const PokemonSetCatalogPack* PokemonSetCatalog::findPack(std::string_view setId) const {
+    for (const auto& pack : packs) {
+        if (pack.setId == setId) return &pack;
+    }
+    return nullptr;
+}
+
+void to_json(nlohmann::json& j, const PokemonCatalogCard& c) {
+    j = nlohmann::json{{"setNo", c.setNo}, {"name", c.name}};
+}
+
+void from_json(const nlohmann::json& j, PokemonCatalogCard& c) {
+    j.at("setNo").get_to(c.setNo);
+    j.at("name").get_to(c.name);
+}
+
+void to_json(nlohmann::json& j, const PokemonSetCatalogPack& p) {
+    j = nlohmann::json{{"id", p.setId}, {"name", p.setName}, {"cards", p.cards}};
+}
+
+void from_json(const nlohmann::json& j, PokemonSetCatalogPack& p) {
+    j.at("id").get_to(p.setId);
+    j.at("name").get_to(p.setName);
+    j.at("cards").get_to(p.cards);
+}
+
+void to_json(nlohmann::json& j, const PokemonSetCatalog& c) {
+    j = nlohmann::json{{"packs", c.packs}};
+}
+
+void from_json(const nlohmann::json& j, PokemonSetCatalog& c) {
+    j.at("packs").get_to(c.packs);
+}
+
+}  // namespace ccm

core/src/domain/YuGiOhBandaiCard.cpp

@@ -0,0 +1,39 @@
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
+
+namespace ccm {
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiCard& c) {
+    j = nlohmann::json{
+        {"id",        c.id},
+        {"amount",    c.amount},
+        {"name",      c.name},
+        {"set",       c.set},
+        {"setNo",     c.setNo},
+        {"rarity",    c.rarity},
+        {"note",      c.note},
+        {"images",    c.images},
+        {"language",  c.language},
+        {"condition", c.condition},
+        {"holo",      c.holo},
+        {"signed",    c.signed_},
+        {"altered",   c.altered},
+    };
+}
+
+void from_json(const nlohmann::json& j, YuGiOhBandaiCard& c) {
+    j.at("id").get_to(c.id);
+    j.at("amount").get_to(c.amount);
+    j.at("name").get_to(c.name);
+    j.at("set").get_to(c.set);
+    j.at("setNo").get_to(c.setNo);
+    j.at("rarity").get_to(c.rarity);
+    j.at("note").get_to(c.note);
+    j.at("images").get_to(c.images);
+    j.at("language").get_to(c.language);
+    j.at("condition").get_to(c.condition);
+    j.at("holo").get_to(c.holo);
+    j.at("signed").get_to(c.signed_);
+    j.at("altered").get_to(c.altered);
+}
+
+}  // namespace ccm

core/src/domain/YuGiOhBandaiSetCatalog.cpp

@@ -0,0 +1,45 @@
+#include "ccm/domain/YuGiOhBandaiSetCatalog.hpp"
+
+namespace ccm {
+
+const YuGiOhBandaiSetCatalogPack* YuGiOhBandaiSetCatalog::findPack(
+    std::string_view setId) const {
+    for (const auto& pack : packs) {
+        if (pack.setId == setId) return &pack;
+    }
+    return nullptr;
+}
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiCatalogCard& c) {
+    j = nlohmann::json{{"setNo", c.setNo}, {"name", c.name}, {"rarity", c.rarity}};
+}
+
+void from_json(const nlohmann::json& j, YuGiOhBandaiCatalogCard& c) {
+    j.at("setNo").get_to(c.setNo);
+    j.at("name").get_to(c.name);
+    if (j.contains("rarity")) {
+        j.at("rarity").get_to(c.rarity);
+    } else {
+        c.rarity.clear();
+    }
+}
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiSetCatalogPack& p) {
+    j = nlohmann::json{{"id", p.setId}, {"name", p.setName}, {"cards", p.cards}};
+}
+
+void from_json(const nlohmann::json& j, YuGiOhBandaiSetCatalogPack& p) {
+    j.at("id").get_to(p.setId);
+    j.at("name").get_to(p.setName);
+    j.at("cards").get_to(p.cards);
+}
+
+void to_json(nlohmann::json& j, const YuGiOhBandaiSetCatalog& c) {
+    j = nlohmann::json{{"packs", c.packs}};
+}
+
+void from_json(const nlohmann::json& j, YuGiOhBandaiSetCatalog& c) {
+    j.at("packs").get_to(c.packs);
+}
+
+}  // namespace ccm

core/src/domain/YuGiOhSetCatalog.cpp

@@ -0,0 +1,41 @@
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
+
+namespace ccm {
+
+const YuGiOhSetCatalogPack* YuGiOhSetCatalog::findPack(std::string_view setId) const {
+    for (const auto& pack : packs) {
+        if (pack.setId == setId) return &pack;
+    }
+    return nullptr;
+}
+
+void to_json(nlohmann::json& j, const YuGiOhCatalogCard& c) {
+    j = nlohmann::json{{"setNo", c.setNo}, {"name", c.name}};
+    if (!c.rarity.empty()) j["rarity"] = c.rarity;
+}
+
+void from_json(const nlohmann::json& j, YuGiOhCatalogCard& c) {
+    j.at("setNo").get_to(c.setNo);
+    j.at("name").get_to(c.name);
+    c.rarity = j.value("rarity", "");
+}
+
+void to_json(nlohmann::json& j, const YuGiOhSetCatalogPack& p) {
+    j = nlohmann::json{{"id", p.setId}, {"name", p.setName}, {"cards", p.cards}};
+}
+
+void from_json(const nlohmann::json& j, YuGiOhSetCatalogPack& p) {
+    j.at("id").get_to(p.setId);
+    j.at("name").get_to(p.setName);
+    j.at("cards").get_to(p.cards);
+}
+
+void to_json(nlohmann::json& j, const YuGiOhSetCatalog& c) {
+    j = nlohmann::json{{"packs", c.packs}};
+}
+
+void from_json(const nlohmann::json& j, YuGiOhSetCatalog& c) {
+    j.at("packs").get_to(c.packs);
+}
+
+}  // namespace ccm

core/src/games/digibattle99/DigiBattle99CardPreviewSource.cpp

@@ -35,6 +35,44 @@ bool cardInPack(const nlohmann::json& card, std::string_view packName) {
     return false;
 }
 
+// Numeric collector suffix: "ST-01" → "01", "01" → "01", "BO-115" → "115".
+std::string numericSuffix(std::string_view setNo) {
+    const std::string n = DigiBattle99CardPreviewSource::normalizeCardNumber(setNo);
+    const auto dash = n.find('-');
+    const std::string_view tail =
+        dash == std::string::npos ? std::string_view{n} : std::string_view{n}.substr(dash + 1);
+    std::string out;
+    out.reserve(tail.size());
+    for (unsigned char c : tail) {
+        if (std::isdigit(c) != 0) out.push_back(static_cast<char>(c));
+    }
+    return out;
+}
+
+std::string stripLeadingZeros(std::string digits) {
+    std::size_t i = 0;
+    while (i + 1 < digits.size() && digits[i] == '0') ++i;
+    if (i > 0) digits.erase(0, i);
+    return digits;
+}
+
+bool hasAlphabeticPrefix(std::string_view setNo) {
+    const std::string n = DigiBattle99CardPreviewSource::normalizeCardNumber(setNo);
+    return !n.empty() && std::isalpha(static_cast<unsigned char>(n.front())) != 0;
+}
+
+// Exact id match, or digits-only input matched to the numeric suffix with
+// leading zeros ignored ("1" ↔ "ST-01", but not "ST-11").
+bool cardNumbersMatch(std::string_view wanted, std::string_view actual) {
+    const std::string a = DigiBattle99CardPreviewSource::normalizeCardNumber(wanted);
+    const std::string b = DigiBattle99CardPreviewSource::normalizeCardNumber(actual);
+    if (a.empty() || b.empty()) return false;
+    if (a == b) return true;
+    // Full id typed (ST-01): require exact normalized equality only.
+    if (hasAlphabeticPrefix(a)) return false;
+    return stripLeadingZeros(numericSuffix(a)) == stripLeadingZeros(numericSuffix(b));
+}
+
 }  // namespace
 
 DigiBattle99CardPreviewSource::DigiBattle99CardPreviewSource(IHttpClient& http)
@@ -144,7 +182,8 @@ DigiBattle99CardPreviewSource::fetchImageUrl(std::string_view name,
 Result<std::vector<AutoDetectedPrint>> DigiBattle99CardPreviewSource::parsePrintVariants(
     const std::string& body,
     std::string_view setName,
-    std::string_view wantedCardName) {
+    std::string_view wantedCardName,
+    std::string_view wantedSetNo) {
     using R = Result<std::vector<AutoDetectedPrint>>;
     try {
         const auto j = nlohmann::json::parse(body);
@@ -157,6 +196,7 @@ Result<std::vector<AutoDetectedPrint>> DigiBattle99CardPreviewSource::parsePrint
 
         const std::string wantedPack = trim(std::string(setName));
         const std::string wantedNameLower = toLower(trim(std::string(wantedCardName)));
+        const std::string wantedNo = normalizeCardNumber(wantedSetNo);
 
         std::vector<AutoDetectedPrint> collected;
         for (const auto& card : j) {
@@ -166,13 +206,20 @@ Result<std::vector<AutoDetectedPrint>> DigiBattle99CardPreviewSource::parsePrint
             }
             if (!cardInPack(card, wantedPack)) continue;
             AutoDetectedPrint out;
+            out.name = trim(card.value("name", ""));
             out.setNo = normalizeCardNumber(card.value("id", ""));
             out.rarity = "";  // Digi-Battle UI is Pokémon-like; rarity not persisted.
             if (out.setNo.empty()) continue;
+            // digimoncard.io `card=` is fuzzy (card=1 can return ST-01 and ST-11).
+            // When the user typed a number, keep only exact / zero-padded matches.
+            if (!wantedNo.empty() && !cardNumbersMatch(wantedNo, out.setNo)) continue;
             collected.push_back(std::move(out));
         }
 
         if (collected.empty()) {
+            if (!wantedNo.empty()) {
+                return R::err("Could not auto-detect Digi-Battle card name from set number.");
+            }
             if (!wantedNameLower.empty() && !wantedPack.empty()) {
                 return R::err("Could not auto-detect Digi-Battle set print metadata.");
             }
@@ -219,4 +266,40 @@ Result<std::vector<AutoDetectedPrint>> DigiBattle99CardPreviewSource::detectPrin
     return parsePrintVariants(fallback.value(), setName, name);
 }
 
+Result<AutoDetectedPrint> DigiBattle99CardPreviewSource::detectBySetNo(
+    std::string_view setName,
+    std::string_view setNo) {
+    auto list = detectVariantsBySetNo(setName, setNo);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err(
+            "Could not auto-detect Digi-Battle card name from set number.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>> DigiBattle99CardPreviewSource::detectVariantsBySetNo(
+    std::string_view setName,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    if (trim(std::string(setName)).empty()) return R::err("Select a set first.");
+    const std::string num = normalizeCardNumber(setNo);
+    if (num.empty()) return R::err("Card number is empty.");
+
+    const std::string url = buildSearchUrl("", setName, num);
+    auto resp = http_.get(url);
+    if (resp) {
+        auto parsed = parsePrintVariants(resp.value(), setName, "", num);
+        if (parsed && !parsed.value().empty()) return parsed;
+    }
+    // Retry number-only; still filter by pack + exact/padded number.
+    const std::string fallbackUrl = buildSearchUrl("", "", num);
+    auto fallback = http_.get(fallbackUrl);
+    if (!fallback) {
+        if (resp) return R::err("Could not auto-detect Digi-Battle card name from set number.");
+        return R::err(fallback.error());
+    }
+    return parsePrintVariants(fallback.value(), setName, "", num);
+}
+
 }  // namespace ccm

core/src/games/digibattle99/DigiBattle99SetSource.cpp

@@ -1,5 +1,7 @@
 #include "ccm/games/digibattle99/DigiBattle99SetSource.hpp"
 
+#include "ccm/games/digibattle99/DigiBattle99CardPreviewSource.hpp"
+
 #include <nlohmann/json.hpp>
 
 #include <algorithm>
@@ -40,6 +42,24 @@ std::string releaseDateForPack(const std::string& packName) {
     return {};
 }
 
+Result<nlohmann::json> parseSearchArray(const std::string& body) {
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (j.is_object() && j.contains("error")) {
+            return Result<nlohmann::json>::err(
+                j.value("error", std::string{"digimoncard.io set search error"}));
+        }
+        if (!j.is_array()) {
+            return Result<nlohmann::json>::err(
+                "digimoncard.io Digi-Battle response is not a JSON array.");
+        }
+        return Result<nlohmann::json>::ok(j);
+    } catch (const std::exception& e) {
+        return Result<nlohmann::json>::err(
+            std::string("digimoncard.io Digi-Battle JSON parse error: ") + e.what());
+    }
+}
+
 }  // namespace
 
 DigiBattle99SetSource::DigiBattle99SetSource(IHttpClient& http) : http_(http) {}
@@ -61,59 +81,126 @@ std::string DigiBattle99SetSource::slugifyPackName(std::string_view packName) {
 }
 
 Result<std::vector<Set>> DigiBattle99SetSource::parseResponse(const std::string& body) {
-    try {
-        const auto j = nlohmann::json::parse(body);
-        if (j.is_object() && j.contains("error")) {
-            return Result<std::vector<Set>>::err(
-                j.value("error", std::string{"digimoncard.io set search error"}));
-        }
-        if (!j.is_array()) {
-            return Result<std::vector<Set>>::err(
-                "digimoncard.io Digi-Battle response is not a JSON array.");
-        }
+    auto arr = parseSearchArray(body);
+    if (!arr) return Result<std::vector<Set>>::err(arr.error());
 
-        // Preserve first-seen order of pack names, then sort by release date.
-        std::unordered_set<std::string> seen;
-        std::vector<std::string> packNames;
-        packNames.reserve(16);
-        for (const auto& entry : j) {
-            if (!entry.contains("set_name") || !entry.at("set_name").is_array()) continue;
-            for (const auto& pack : entry.at("set_name")) {
-                if (!pack.is_string()) continue;
-                const std::string name = pack.get<std::string>();
-                if (name.empty()) continue;
-                if (seen.insert(name).second) packNames.push_back(name);
-            }
+    // Preserve first-seen order of pack names, then sort by release date.
+    std::unordered_set<std::string> seen;
+    std::vector<std::string> packNames;
+    packNames.reserve(16);
+    for (const auto& entry : arr.value()) {
+        if (!entry.contains("set_name") || !entry.at("set_name").is_array()) continue;
+        for (const auto& pack : entry.at("set_name")) {
+            if (!pack.is_string()) continue;
+            const std::string name = pack.get<std::string>();
+            if (name.empty()) continue;
+            if (seen.insert(name).second) packNames.push_back(name);
         }
-
-        std::vector<Set> out;
-        out.reserve(packNames.size());
-        for (const auto& name : packNames) {
-            Set s;
-            s.id = slugifyPackName(name);
-            s.name = name;
-            s.releaseDate = releaseDateForPack(name);
-            if (s.id.empty()) continue;
-            out.push_back(std::move(s));
-        }
-
-        std::sort(out.begin(), out.end(), [](const Set& a, const Set& b) {
-            if (a.releaseDate.empty() && !b.releaseDate.empty()) return false;
-            if (!a.releaseDate.empty() && b.releaseDate.empty()) return true;
-            if (a.releaseDate != b.releaseDate) return a.releaseDate < b.releaseDate;
-            return a.name < b.name;
-        });
-        return Result<std::vector<Set>>::ok(std::move(out));
-    } catch (const std::exception& e) {
-        return Result<std::vector<Set>>::err(
-            std::string("digimoncard.io Digi-Battle JSON parse error: ") + e.what());
     }
+
+    std::vector<Set> out;
+    out.reserve(packNames.size());
+    for (const auto& name : packNames) {
+        Set s;
+        s.id = slugifyPackName(name);
+        s.name = name;
+        s.releaseDate = releaseDateForPack(name);
+        if (s.id.empty()) continue;
+        out.push_back(std::move(s));
+    }
+
+    std::sort(out.begin(), out.end(), [](const Set& a, const Set& b) {
+        if (a.releaseDate.empty() && !b.releaseDate.empty()) return false;
+        if (!a.releaseDate.empty() && b.releaseDate.empty()) return true;
+        if (a.releaseDate != b.releaseDate) return a.releaseDate < b.releaseDate;
+        return a.name < b.name;
+    });
+    return Result<std::vector<Set>>::ok(std::move(out));
+}
+
+Result<DigiBattle99SetCatalog> DigiBattle99SetSource::parseCatalog(const std::string& body) {
+    auto arr = parseSearchArray(body);
+    if (!arr) return Result<DigiBattle99SetCatalog>::err(arr.error());
+
+    // pack display name -> (setId, ordered unique cards by first-seen setNo)
+    struct PackBuild {
+        std::string setId;
+        std::string setName;
+        std::unordered_set<std::string> seenNos;
+        std::vector<DigiBattle99CatalogCard> cards;
+    };
+    std::unordered_map<std::string, PackBuild> byName;
+
+    for (const auto& entry : arr.value()) {
+        if (!entry.contains("name") || !entry.at("name").is_string()) continue;
+        if (!entry.contains("id") || !entry.at("id").is_string()) continue;
+        if (!entry.contains("set_name") || !entry.at("set_name").is_array()) continue;
+
+        DigiBattle99CatalogCard card;
+        card.name = entry.at("name").get<std::string>();
+        card.setNo = DigiBattle99CardPreviewSource::normalizeCardNumber(
+            entry.at("id").get<std::string>());
+        if (card.setNo.empty()) continue;
+
+        for (const auto& pack : entry.at("set_name")) {
+            if (!pack.is_string()) continue;
+            const std::string packName = pack.get<std::string>();
+            if (packName.empty()) continue;
+
+            auto& build = byName[packName];
+            if (build.setName.empty()) {
+                build.setName = packName;
+                build.setId = slugifyPackName(packName);
+            }
+            if (build.setId.empty()) continue;
+            if (!build.seenNos.insert(card.setNo).second) continue;
+            build.cards.push_back(card);
+        }
+    }
+
+    DigiBattle99SetCatalog catalog;
+    catalog.packs.reserve(byName.size());
+    for (auto& [_, build] : byName) {
+        if (build.setId.empty()) continue;
+        std::sort(build.cards.begin(), build.cards.end(),
+                  [](const DigiBattle99CatalogCard& a, const DigiBattle99CatalogCard& b) {
+                      if (a.setNo != b.setNo) return a.setNo < b.setNo;
+                      return a.name < b.name;
+                  });
+        DigiBattle99SetCatalogPack pack;
+        pack.setId = std::move(build.setId);
+        pack.setName = std::move(build.setName);
+        pack.cards = std::move(build.cards);
+        catalog.packs.push_back(std::move(pack));
+    }
+
+    std::sort(catalog.packs.begin(), catalog.packs.end(),
+              [](const DigiBattle99SetCatalogPack& a, const DigiBattle99SetCatalogPack& b) {
+                  return a.setName < b.setName;
+              });
+    return Result<DigiBattle99SetCatalog>::ok(std::move(catalog));
+}
+
+Result<DigiBattle99SetSource::FetchWithCatalog>
+DigiBattle99SetSource::fetchAllWithCatalog() {
+    auto resp = http_.get(kEndpoint);
+    if (!resp) return Result<FetchWithCatalog>::err(resp.error());
+
+    auto sets = parseResponse(resp.value());
+    if (!sets) return Result<FetchWithCatalog>::err(sets.error());
+    auto catalog = parseCatalog(resp.value());
+    if (!catalog) return Result<FetchWithCatalog>::err(catalog.error());
+
+    FetchWithCatalog out;
+    out.sets = std::move(sets).value();
+    out.catalog = std::move(catalog).value();
+    return Result<FetchWithCatalog>::ok(std::move(out));
 }
 
 Result<std::vector<Set>> DigiBattle99SetSource::fetchAll() {
-    auto resp = http_.get(kEndpoint);
-    if (!resp) return Result<std::vector<Set>>::err(resp.error());
-    return parseResponse(resp.value());
+    auto both = fetchAllWithCatalog();
+    if (!both) return Result<std::vector<Set>>::err(both.error());
+    return Result<std::vector<Set>>::ok(std::move(both).value().sets);
 }
 
 }  // namespace ccm

core/src/games/pokemon/PokemonCardPreviewSource.cpp

@@ -1,5 +1,6 @@
 #include "ccm/games/pokemon/PokemonCardPreviewSource.hpp"
 
+#include "ccm/games/pokemon/PokemonWestSetId.hpp"
 #include "ccm/util/Rfc3986.hpp"
 
 #include <nlohmann/json.hpp>
@@ -13,18 +14,6 @@ namespace ccm {
 
 namespace {
 
-// Strip everything after the first '/' in a Pokemon collector number.
-// The Pokemon TCG API expects `number:"4"`, but cards are commonly stored as
-// `4/102`. Without this, no API match is found.
-std::string normalizeNumber(std::string_view setNo) {
-    std::string s(setNo);
-    const auto slash = s.find('/');
-    if (slash != std::string::npos) {
-        s = s.substr(0, slash);
-    }
-    return s;
-}
-
 std::string trim(std::string s) {
     while (!s.empty() && std::isspace(static_cast<unsigned char>(s.front()))) s.erase(s.begin());
     while (!s.empty() && std::isspace(static_cast<unsigned char>(s.back()))) s.pop_back();
@@ -38,67 +27,165 @@ std::string toLower(std::string s) {
     return s;
 }
 
+std::string stripLeadingZeros(std::string_view s) {
+    std::size_t i = 0;
+    while (i + 1 < s.size() && s[i] == '0') ++i;
+    return std::string(s.substr(i));
+}
+
+// Exact localId match after slash-normalization, or leading-zero-insensitive
+// equality ("4" ↔ "04", not "4" ↔ "14").
+bool localIdsMatch(std::string_view a, std::string_view b) {
+    const std::string na = PokemonCardPreviewSource::normalizeCollectorNumber(a);
+    const std::string nb = PokemonCardPreviewSource::normalizeCollectorNumber(b);
+    if (na.empty() || nb.empty()) return false;
+    if (na == nb) return true;
+    return stripLeadingZeros(na) == stripLeadingZeros(nb);
+}
+
 }  // namespace
 
 PokemonCardPreviewSource::PokemonCardPreviewSource(IHttpClient& http) : http_(http) {}
 
+std::string PokemonCardPreviewSource::normalizeCollectorNumber(std::string_view setNo) {
+    std::string s(setNo);
+    const auto slash = s.find('/');
+    if (slash != std::string::npos) {
+        s = s.substr(0, slash);
+    }
+    return s;
+}
+
+std::string PokemonCardPreviewSource::imageUrlFromBase(std::string_view imageBase) {
+    if (imageBase.empty()) return {};
+    std::string url(imageBase);
+    while (!url.empty() && (url.back() == '/' || url.back() == ' ')) url.pop_back();
+    return url + "/high.png";
+}
+
+std::string PokemonCardPreviewSource::buildCardByIdUrl(std::string_view setId,
+                                                       std::string_view setNo) {
+    const std::string idCanon = canonicalizeWestSetId(setId);
+    const std::string num = normalizeCollectorNumber(setNo);
+    std::string id = idCanon + "-" + num;
+    return std::string("https://api.tcgdex.net/v2/en/cards/") + rfc3986PercentEncode(id);
+}
+
+std::string PokemonCardPreviewSource::buildSetDetailUrl(std::string_view setId) {
+    return std::string("https://api.tcgdex.net/v2/en/sets/") +
+           rfc3986PercentEncode(canonicalizeWestSetId(setId));
+}
+
 std::string PokemonCardPreviewSource::buildSearchUrl(std::string_view name,
                                                      std::string_view setId,
                                                      std::string_view setNo) {
-    // Build the unencoded query first so the output matches what the Pokemon
-    // TCG search syntax expects: name:"<name>" set.id:<setId> number:<num>.
-    std::string query = "name:\"";
-    query += std::string(name);
-    query += "\"";
-    if (!setId.empty()) {
-        query += " set.id:";
-        query += std::string(setId);
-    }
-    const std::string num = normalizeNumber(setNo);
-    if (!num.empty()) {
-        query += " number:";
-        query += num;
-    }
-    return std::string("https://api.pokemontcg.io/v2/cards?q=") +
-           rfc3986PercentEncode(query);
-}
+    const std::string idCanon = canonicalizeWestSetId(setId);
+    const std::string num = normalizeCollectorNumber(setNo);
+    std::string url = "https://api.tcgdex.net/v2/en/cards?";
+    bool first = true;
+    auto append = [&](std::string_view key, std::string_view value) {
+        if (value.empty()) return;
+        if (!first) url += '&';
+        first = false;
+        url += std::string(key);
+        url += "=eq:";
+        url += rfc3986PercentEncode(value);
+    };
 
-std::string PokemonCardPreviewSource::buildDetectSearchUrl(std::string_view name,
-                                                           std::string_view setId) {
-    std::string url = buildSearchUrl(name, setId, "");
-    url += "&select=name,number,rarity,set";
-    url += "&pageSize=50";
+    if (!idCanon.empty() && !num.empty()) {
+        append("set.id", idCanon);
+        append("localId", num);
+    } else {
+        append("name", name);
+        append("set.id", idCanon);
+        append("localId", num);
+    }
     return url;
 }
 
+Result<std::vector<PokemonCardPreviewSource::SetCardRow>, PreviewLookupError>
+PokemonCardPreviewSource::parseSetCards(const std::string& body) {
+    using R = Result<std::vector<SetCardRow>, PreviewLookupError>;
+    using K = PreviewLookupError::Kind;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.is_object() || !j.contains("cards") || !j.at("cards").is_array()) {
+            return R::err({K::Transient,
+                           "TCGdex EN set detail missing 'cards' array."});
+        }
+        std::vector<SetCardRow> out;
+        out.reserve(j.at("cards").size());
+        for (const auto& card : j.at("cards")) {
+            SetCardRow row;
+            row.localId = card.value("localId", "");
+            if (row.localId.empty() && card.contains("id") && card.at("id").is_string()) {
+                const std::string id = card.at("id").get<std::string>();
+                const auto dash = id.rfind('-');
+                if (dash != std::string::npos) row.localId = id.substr(dash + 1);
+            }
+            row.name = card.value("name", "");
+            row.rarity = card.value("rarity", "");
+            if (card.contains("image") && card.at("image").is_string()) {
+                row.imageBase = card.at("image").get<std::string>();
+            }
+            if (row.localId.empty()) continue;
+            out.push_back(std::move(row));
+        }
+        return R::ok(std::move(out));
+    } catch (const std::exception& e) {
+        return R::err({K::Transient,
+                       std::string("TCGdex EN set detail JSON parse error: ") + e.what()});
+    }
+}
+
 Result<std::string, PreviewLookupError>
-PokemonCardPreviewSource::parseResponse(const std::string& body) {
+PokemonCardPreviewSource::parseCardByIdResponse(const std::string& body) {
     using R = Result<std::string, PreviewLookupError>;
     using K = PreviewLookupError::Kind;
     try {
         const auto j = nlohmann::json::parse(body);
-        if (!j.contains("data") || !j.at("data").is_array()) {
-            return R::err({K::Transient, "Pokemon TCG response missing 'data' array."});
+        if (!j.is_object()) {
+            return R::err({K::Transient, "TCGdex EN card response is not a JSON object."});
         }
-        const auto& data = j.at("data");
-        if (data.empty()) {
-            return R::err({K::NotFound, "Pokemon TCG returned no matching cards."});
+        if (!j.contains("image") || j.at("image").is_null()) {
+            return R::err({K::NotFound, "TCGdex EN card has no image."});
         }
-        const auto& first = data.at(0);
-        if (!first.contains("images") || !first.at("images").is_object()) {
-            return R::err({K::NotFound, "Card has no 'images' object."});
+        if (!j.at("image").is_string()) {
+            return R::err({K::Transient, "TCGdex EN card image field is not a string."});
         }
-        const auto& images = first.at("images");
-        if (images.contains("large") && images.at("large").is_string()) {
-            return R::ok(images.at("large").get<std::string>());
+        const std::string base = j.at("image").get<std::string>();
+        if (base.empty()) {
+            return R::err({K::NotFound, "TCGdex EN card has no image."});
         }
-        if (images.contains("small") && images.at("small").is_string()) {
-            return R::ok(images.at("small").get<std::string>());
-        }
-        return R::err({K::NotFound, "Card has no 'large' or 'small' image variant."});
+        return R::ok(imageUrlFromBase(base));
     } catch (const std::exception& e) {
         return R::err({K::Transient,
-            std::string("Pokemon TCG JSON parse error: ") + e.what()});
+                       std::string("TCGdex EN card JSON parse error: ") + e.what()});
+    }
+}
+
+Result<std::string, PreviewLookupError>
+PokemonCardPreviewSource::parseSearchResponse(const std::string& body) {
+    using R = Result<std::string, PreviewLookupError>;
+    using K = PreviewLookupError::Kind;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.is_array()) {
+            return R::err({K::Transient, "TCGdex EN cards search response is not an array."});
+        }
+        if (j.empty()) {
+            return R::err({K::NotFound, "TCGdex EN returned no matching cards."});
+        }
+        for (const auto& card : j) {
+            if (!card.contains("image") || !card.at("image").is_string()) continue;
+            const std::string base = card.at("image").get<std::string>();
+            if (base.empty()) continue;
+            return R::ok(imageUrlFromBase(base));
+        }
+        return R::err({K::NotFound, "TCGdex EN matching cards have no image."});
+    } catch (const std::exception& e) {
+        return R::err({K::Transient,
+                       std::string("TCGdex EN cards search JSON parse error: ") + e.what()});
     }
 }
 
@@ -108,68 +195,54 @@ PokemonCardPreviewSource::fetchImageUrl(std::string_view name,
                                         std::string_view setNo) {
     using R = Result<std::string, PreviewLookupError>;
     using K = PreviewLookupError::Kind;
-    const std::string url = buildSearchUrl(name, setId, setNo);
+
+    const std::string idCanon = canonicalizeWestSetId(setId);
+    const std::string num = normalizeCollectorNumber(setNo);
+    if (!idCanon.empty() && !num.empty()) {
+        auto byId = http_.get(buildCardByIdUrl(idCanon, num));
+        if (byId) {
+            auto img = parseCardByIdResponse(byId.value());
+            if (img) return img;
+            // NotFound / Transient schema: fall through to search.
+        }
+    }
+
+    const std::string url = buildSearchUrl(name, idCanon, num);
     auto resp = http_.get(url);
     if (!resp) return R::err({K::Transient, resp.error()});
-    return parseResponse(resp.value());
+    return parseSearchResponse(resp.value());
 }
 
 Result<std::vector<AutoDetectedPrint>> PokemonCardPreviewSource::parsePrintVariants(
     const std::string& body,
-    std::string_view setId,
+    std::string_view /*setId*/,
     std::string_view wantedCardName) {
     using R = Result<std::vector<AutoDetectedPrint>>;
-    try {
-        const auto j = nlohmann::json::parse(body);
-        if (!j.contains("data") || !j.at("data").is_array() || j.at("data").empty()) {
-            return R::err("Pokemon TCG returned no matching cards.");
-        }
-        const std::string wantedSetId = trim(std::string(setId));
-        const std::string wantedNameLower = toLower(trim(std::string(wantedCardName)));
-
-        std::vector<AutoDetectedPrint> collected;
-        auto pushCard = [&collected](const nlohmann::json& card) {
-            AutoDetectedPrint out;
-            out.setNo = trim(card.value("number", ""));
-            out.rarity = trim(card.value("rarity", ""));
-            if (out.setNo.empty() && out.rarity.empty()) return;
-            collected.push_back(std::move(out));
-        };
-
-        for (const auto& card : j.at("data")) {
-            if (!wantedNameLower.empty()) {
-                const std::string cardName = trim(card.value("name", ""));
-                if (toLower(cardName) != wantedNameLower) continue;
-            }
-            if (!wantedSetId.empty()) {
-                std::string cardSetId;
-                if (card.contains("set") && card.at("set").is_object()) {
-                    cardSetId = trim(card.at("set").value("id", ""));
-                }
-                if (cardSetId != wantedSetId) continue;
-            }
-            pushCard(card);
-        }
-
-        if (collected.empty()) {
-            if (!wantedNameLower.empty() && !wantedSetId.empty()) {
-                return R::err("Could not auto-detect set print metadata.");
-            }
-            return R::err("Pokemon TCG returned no matching cards.");
-        }
-
-        std::vector<AutoDetectedPrint> deduped;
-        deduped.reserve(collected.size());
-        std::unordered_set<std::string> seen;
-        seen.reserve(collected.size() * 2);
-        for (auto& p : collected) {
-            const std::string key = p.setNo + '\0' + p.rarity;
-            if (seen.insert(key).second) deduped.push_back(std::move(p));
-        }
-        return R::ok(std::move(deduped));
-    } catch (const std::exception& e) {
-        return R::err(std::string("Pokemon TCG JSON parse error: ") + e.what());
+    auto rows = parseSetCards(body);
+    if (!rows) {
+        return R::err(rows.error().message);
     }
+
+    const std::string wantedLower = toLower(trim(std::string(wantedCardName)));
+    std::vector<AutoDetectedPrint> out;
+    std::unordered_set<std::string> seen;
+
+    for (const auto& row : rows.value()) {
+        if (!wantedLower.empty()) {
+            if (toLower(trim(row.name)) != wantedLower) continue;
+        }
+        const std::string localId = normalizeCollectorNumber(row.localId);
+        if (localId.empty() || !seen.insert(localId + '\0' + row.rarity).second) continue;
+        AutoDetectedPrint print;
+        print.setNo = localId;
+        print.rarity = row.rarity;
+        out.push_back(std::move(print));
+    }
+
+    if (out.empty()) {
+        return R::err("Could not auto-detect set print metadata.");
+    }
+    return R::ok(std::move(out));
 }
 
 Result<AutoDetectedPrint> PokemonCardPreviewSource::detectFirstPrint(std::string_view name,
@@ -186,15 +259,157 @@ Result<std::vector<AutoDetectedPrint>> PokemonCardPreviewSource::detectPrintVari
     std::string_view name,
     std::string_view setId) {
     using R = Result<std::vector<AutoDetectedPrint>>;
-    const std::string url = buildDetectSearchUrl(name, setId);
-    auto resp = http_.get(url);
-    if (resp) {
-        return parsePrintVariants(resp.value(), setId, name);
+    const std::string idCanon = canonicalizeWestSetId(setId);
+    if (!idCanon.empty()) {
+        auto detail = http_.get(buildSetDetailUrl(idCanon));
+        if (detail) {
+            auto parsed = parsePrintVariants(detail.value(), idCanon, name);
+            if (parsed) return parsed;
+        }
+    }
+
+    // Fallback: filtered cards search by name (+ optional set).
+    const std::string url = buildSearchUrl(name, idCanon, "");
+    auto resp = http_.get(url);
+    if (!resp) return R::err(resp.error());
+
+    try {
+        const auto j = nlohmann::json::parse(resp.value());
+        if (!j.is_array() || j.empty()) {
+            return R::err("TCGdex EN returned no matching cards.");
+        }
+        const std::string wantedLower = toLower(trim(std::string(name)));
+        std::vector<AutoDetectedPrint> collected;
+        std::unordered_set<std::string> seen;
+        for (const auto& card : j) {
+            if (!wantedLower.empty()) {
+                const std::string cardName = trim(card.value("name", ""));
+                if (toLower(cardName) != wantedLower) continue;
+            }
+            if (!idCanon.empty()) {
+                std::string cardSetId;
+                if (card.contains("set") && card.at("set").is_object()) {
+                    cardSetId = trim(card.at("set").value("id", ""));
+                } else if (card.contains("id") && card.at("id").is_string()) {
+                    // Slim search hits are "setId-localId".
+                    const std::string id = card.at("id").get<std::string>();
+                    const auto dash = id.rfind('-');
+                    if (dash != std::string::npos) cardSetId = id.substr(0, dash);
+                }
+                if (cardSetId != idCanon) continue;
+            }
+            AutoDetectedPrint print;
+            print.setNo = normalizeCollectorNumber(card.value("localId", ""));
+            print.rarity = trim(card.value("rarity", ""));
+            if (print.setNo.empty() && print.rarity.empty()) continue;
+            const std::string key = print.setNo + '\0' + print.rarity;
+            if (!seen.insert(key).second) continue;
+            collected.push_back(std::move(print));
+        }
+        if (collected.empty()) {
+            return R::err("Could not auto-detect set print metadata.");
+        }
+        return R::ok(std::move(collected));
+    } catch (const std::exception& e) {
+        return R::err(std::string("TCGdex EN cards search JSON parse error: ") + e.what());
+    }
+}
+
+Result<AutoDetectedPrint> PokemonCardPreviewSource::parsePrintFromCardById(
+    const std::string& body) {
+    using R = Result<AutoDetectedPrint>;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.is_object()) {
+            return R::err("TCGdex EN card response is not a JSON object.");
+        }
+        AutoDetectedPrint print;
+        print.name = trim(j.value("name", ""));
+        print.setNo = normalizeCollectorNumber(j.value("localId", ""));
+        print.rarity = trim(j.value("rarity", ""));
+        if (print.name.empty()) {
+            return R::err("TCGdex EN card has no name.");
+        }
+        if (print.setNo.empty() && j.contains("id") && j.at("id").is_string()) {
+            const std::string id = j.at("id").get<std::string>();
+            const auto dash = id.rfind('-');
+            if (dash != std::string::npos) {
+                print.setNo = normalizeCollectorNumber(id.substr(dash + 1));
+            }
+        }
+        return R::ok(std::move(print));
+    } catch (const std::exception& e) {
+        return R::err(std::string("TCGdex EN card JSON parse error: ") + e.what());
+    }
+}
+
+Result<AutoDetectedPrint> PokemonCardPreviewSource::detectBySetNo(std::string_view setId,
+                                                                  std::string_view setNo) {
+    auto list = detectVariantsBySetNo(setId, setNo);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err("Could not auto-detect card name from set number.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>> PokemonCardPreviewSource::detectVariantsBySetNo(
+    std::string_view setId,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string idCanon = canonicalizeWestSetId(setId);
+    const std::string num = normalizeCollectorNumber(setNo);
+    if (idCanon.empty()) return R::err("Select a set first.");
+    if (num.empty()) return R::err("Card number is empty.");
+
+    auto byId = http_.get(buildCardByIdUrl(idCanon, num));
+    if (byId) {
+        auto parsed = parsePrintFromCardById(byId.value());
+        if (parsed && localIdsMatch(parsed.value().setNo, num)) {
+            std::vector<AutoDetectedPrint> out;
+            out.push_back(std::move(parsed).value());
+            return R::ok(std::move(out));
+        }
+    }
+
+    // Fallback: filtered search by set.id + localId.
+    const std::string url = buildSearchUrl("", idCanon, num);
+    auto resp = http_.get(url);
+    if (!resp) return R::err(resp.error());
+    try {
+        const auto j = nlohmann::json::parse(resp.value());
+        if (!j.is_array() || j.empty()) {
+            return R::err("Could not auto-detect card name from set number.");
+        }
+        std::vector<AutoDetectedPrint> out;
+        std::unordered_set<std::string> seen;
+        for (const auto& card : j) {
+            AutoDetectedPrint print;
+            print.name = trim(card.value("name", ""));
+            print.setNo = normalizeCollectorNumber(card.value("localId", ""));
+            print.rarity = trim(card.value("rarity", ""));
+            if (print.name.empty()) continue;
+            if (print.setNo.empty() && card.contains("id") && card.at("id").is_string()) {
+                const std::string id = card.at("id").get<std::string>();
+                const auto dash = id.rfind('-');
+                if (dash != std::string::npos) {
+                    print.setNo = normalizeCollectorNumber(id.substr(dash + 1));
+                }
+            }
+            // Defense-in-depth: TCGdex search can be fuzzy; never accept a
+            // different localId (e.g. "14" when the user asked for "4").
+            if (!localIdsMatch(print.setNo, num)) continue;
+            const std::string key = print.name + '\0' + print.setNo + '\0' + print.rarity;
+            if (!seen.insert(key).second) continue;
+            out.push_back(std::move(print));
+        }
+        if (out.empty()) {
+            return R::err("Could not auto-detect card name from set number.");
+        }
+        return R::ok(std::move(out));
+    } catch (const std::exception& e) {
+        return R::err(std::string("TCGdex EN cards search JSON parse error: ") + e.what());
     }
-    const std::string fallbackUrl = buildDetectSearchUrl(name, "");
-    auto fallback = http_.get(fallbackUrl);
-    if (!fallback) return R::err(fallback.error());
-    return parsePrintVariants(fallback.value(), setId, name);
 }
 
 }  // namespace ccm

core/src/games/pokemon/PokemonCollectionSetSync.cpp

@@ -0,0 +1,70 @@
+#include "ccm/games/pokemon/PokemonCollectionSetSync.hpp"
+
+#include "ccm/games/pokemon/PokemonWestSetId.hpp"
+
+#include <unordered_map>
+
+namespace ccm {
+
+namespace {
+
+std::unordered_map<std::string, const Set*> indexById(const std::vector<Set>& sets) {
+    std::unordered_map<std::string, const Set*> out;
+    out.reserve(sets.size());
+    for (const auto& s : sets) {
+        if (s.id.empty()) continue;
+        out.emplace(s.id, &s);
+    }
+    return out;
+}
+
+bool applySetMetadata(PokemonCard& card, const Set& upstream) {
+    bool changed = false;
+    if (card.set.name != upstream.name) {
+        card.set.name = upstream.name;
+        changed = true;
+    }
+    if (card.set.releaseDate != upstream.releaseDate) {
+        card.set.releaseDate = upstream.releaseDate;
+        changed = true;
+    }
+    return changed;
+}
+
+}  // namespace
+
+std::size_t syncPokemonCollectionSets(std::vector<PokemonCard>& cards,
+                                      const std::vector<Set>&   westSets,
+                                      const std::vector<Set>&   asiaSets) {
+    const auto westById = indexById(westSets);
+    const auto asiaById = indexById(asiaSets);
+
+    std::size_t touched = 0;
+    for (auto& card : cards) {
+        bool changed = false;
+        if (card.region == PokemonRegion::West) {
+            if (!card.set.id.empty()) {
+                const std::string canon = canonicalizeWestSetId(card.set.id);
+                if (canon != card.set.id) {
+                    card.set.id = canon;
+                    changed = true;
+                }
+            }
+            if (!card.set.id.empty()) {
+                if (const auto it = westById.find(card.set.id); it != westById.end()) {
+                    if (applySetMetadata(card, *it->second)) changed = true;
+                }
+            }
+        } else if (card.region == PokemonRegion::Asia) {
+            if (!card.set.id.empty()) {
+                if (const auto it = asiaById.find(card.set.id); it != asiaById.end()) {
+                    if (applySetMetadata(card, *it->second)) changed = true;
+                }
+            }
+        }
+        if (changed) ++touched;
+    }
+    return touched;
+}
+
+}  // namespace ccm

core/src/games/pokemon/PokemonSetSource.cpp

@@ -1,45 +1,170 @@
 #include "ccm/games/pokemon/PokemonSetSource.hpp"
 
+#include "ccm/games/pokemon/PokemonCardPreviewSource.hpp"
+#include "ccm/util/Rfc3986.hpp"
+#include "ccm/util/SetNoNatural.hpp"
+
 #include <nlohmann/json.hpp>
 
 #include <algorithm>
 #include <string>
+#include <unordered_set>
+#include <utility>
 
 namespace ccm {
 
 PokemonSetSource::PokemonSetSource(IHttpClient& http) : http_(http) {}
 
-Result<std::vector<Set>> PokemonSetSource::parseResponse(const std::string& body) {
+std::string PokemonSetSource::rewriteReleaseDate(std::string_view isoDate) {
+    std::string out(isoDate);
+    for (char& ch : out) {
+        if (ch == '-') ch = '/';
+    }
+    return out;
+}
+
+std::string PokemonSetSource::buildSetDetailUrl(std::string_view setId) {
+    return std::string("https://api.tcgdex.net/v2/en/sets/") +
+           rfc3986PercentEncode(setId);
+}
+
+Result<std::vector<Set>> PokemonSetSource::parseListResponse(const std::string& body) {
     try {
         const auto j = nlohmann::json::parse(body);
-        if (!j.contains("data") || !j.at("data").is_array()) {
+        if (!j.is_array()) {
             return Result<std::vector<Set>>::err(
-                "Pokemon TCG API response missing 'data' array.");
+                "TCGdex EN sets response is not a JSON array.");
         }
         std::vector<Set> out;
-        out.reserve(j.at("data").size());
-        for (const auto& entry : j.at("data")) {
+        out.reserve(j.size());
+        for (const auto& entry : j) {
             Set s;
-            s.id          = entry.value("id", "");
-            s.name        = entry.value("name", "");
-            // Pokemon TCG API already returns "releaseDate" in YYYY/MM/DD;
-            // no separator rewrite needed (cf. Scryfall's "released_at").
-            s.releaseDate = entry.value("releaseDate", "");
+            s.id = entry.value("id", "");
+            if (s.id.empty()) continue;
+            s.name = entry.value("name", "");
+            s.releaseDate = {};  // filled from set detail
             out.push_back(std::move(s));
         }
-        std::sort(out.begin(), out.end(),
-                  [](const Set& a, const Set& b) { return a.releaseDate < b.releaseDate; });
         return Result<std::vector<Set>>::ok(std::move(out));
     } catch (const std::exception& e) {
         return Result<std::vector<Set>>::err(
-            std::string("Pokemon TCG JSON parse error: ") + e.what());
+            std::string("TCGdex EN sets JSON parse error: ") + e.what());
     }
 }
 
+Result<std::string> PokemonSetSource::parseReleaseDate(const std::string& detailBody) {
+    try {
+        const auto j = nlohmann::json::parse(detailBody);
+        if (!j.is_object()) {
+            return Result<std::string>::err(
+                "TCGdex EN set detail response is not a JSON object.");
+        }
+        const std::string raw = j.value("releaseDate", "");
+        if (raw.empty()) {
+            return Result<std::string>::ok(std::string{});
+        }
+        return Result<std::string>::ok(rewriteReleaseDate(raw));
+    } catch (const std::exception& e) {
+        return Result<std::string>::err(
+            std::string("TCGdex EN set detail JSON parse error: ") + e.what());
+    }
+}
+
+Result<PokemonSetCatalogPack> PokemonSetSource::parseCatalogPackFromSetDetail(
+    const std::string& detailBody,
+    const Set&         set) {
+    auto rows = PokemonCardPreviewSource::parseSetCards(detailBody);
+    if (!rows) {
+        return Result<PokemonSetCatalogPack>::err(rows.error().message);
+    }
+
+    PokemonSetCatalogPack pack;
+    pack.setId = set.id;
+    pack.setName = set.name.empty() ? set.id : set.name;
+
+    std::unordered_set<std::string> seen;
+    for (const auto& row : rows.value()) {
+        const std::string localId =
+            PokemonCardPreviewSource::normalizeCollectorNumber(row.localId);
+        if (localId.empty() || !seen.insert(localId).second) continue;
+        std::string name = row.name;
+        if (name.empty()) name = localId;
+        pack.cards.push_back(PokemonCatalogCard{localId, std::move(name)});
+    }
+
+    std::sort(pack.cards.begin(), pack.cards.end(),
+              [](const PokemonCatalogCard& a, const PokemonCatalogCard& b) {
+                  const int cmp = compareSetNoNatural(a.setNo, b.setNo);
+                  if (cmp != 0) return cmp < 0;
+                  return a.name < b.name;
+              });
+    if (pack.cards.empty()) {
+        return Result<PokemonSetCatalogPack>::err("No cards for set " + set.id);
+    }
+    return Result<PokemonSetCatalogPack>::ok(std::move(pack));
+}
+
 Result<std::vector<Set>> PokemonSetSource::fetchAll() {
-    auto resp = http_.get(kEndpoint);
-    if (!resp) return Result<std::vector<Set>>::err(resp.error());
-    return parseResponse(resp.value());
+    auto listResp = http_.get(kListEndpoint);
+    if (!listResp) return Result<std::vector<Set>>::err(listResp.error());
+
+    auto parsed = parseListResponse(listResp.value());
+    if (!parsed) return parsed;
+
+    std::vector<Set> out = std::move(parsed).value();
+    for (auto& s : out) {
+        auto detail = http_.get(buildSetDetailUrl(s.id));
+        if (!detail) continue;  // keep set with empty date rather than fail all
+        auto date = parseReleaseDate(detail.value());
+        if (date && !date.value().empty()) {
+            s.releaseDate = std::move(date).value();
+        }
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const Set& a, const Set& b) { return a.releaseDate < b.releaseDate; });
+    return Result<std::vector<Set>>::ok(std::move(out));
+}
+
+Result<PokemonSetSource::FetchWithCatalog> PokemonSetSource::fetchAllWithCatalog() {
+    auto listResp = http_.get(kListEndpoint);
+    if (!listResp) return Result<FetchWithCatalog>::err(listResp.error());
+
+    auto parsed = parseListResponse(listResp.value());
+    if (!parsed) return Result<FetchWithCatalog>::err(parsed.error());
+
+    std::vector<Set> sets = std::move(parsed).value();
+    PokemonSetCatalog catalog;
+    catalog.packs.reserve(sets.size());
+
+    for (auto& s : sets) {
+        auto detail = http_.get(buildSetDetailUrl(s.id));
+        if (!detail) continue;
+
+        if (s.releaseDate.empty()) {
+            auto date = parseReleaseDate(detail.value());
+            if (date && !date.value().empty()) {
+                s.releaseDate = std::move(date).value();
+            }
+        }
+
+        auto pack = parseCatalogPackFromSetDetail(detail.value(), s);
+        if (pack) {
+            catalog.packs.push_back(std::move(pack).value());
+        }
+    }
+
+    std::sort(sets.begin(), sets.end(),
+              [](const Set& a, const Set& b) { return a.releaseDate < b.releaseDate; });
+    std::sort(catalog.packs.begin(), catalog.packs.end(),
+              [](const PokemonSetCatalogPack& a, const PokemonSetCatalogPack& b) {
+                  return a.setName < b.setName;
+              });
+
+    FetchWithCatalog out;
+    out.sets = std::move(sets);
+    out.catalog = std::move(catalog);
+    return Result<FetchWithCatalog>::ok(std::move(out));
 }
 
 }  // namespace ccm

core/src/games/pokemon/PokemonWestSetId.cpp

@@ -0,0 +1,92 @@
+#include "ccm/games/pokemon/PokemonWestSetId.hpp"
+
+#include <unordered_map>
+
+namespace ccm {
+
+namespace {
+
+// Built by name-matching PokemonTCG/pokemon-tcg-data set ids against
+// api.tcgdex.net/v2/en/sets. Only divergences are listed; shared ids
+// (base1, swsh1, sv10, sve, …) pass through unchanged.
+const std::unordered_map<std::string, std::string>& legacyAliases() {
+    static const std::unordered_map<std::string, std::string> kMap{
+        // Classic / EX / HGSS renames
+        {"base6", "lc"},
+        {"bp", "bog"},
+        {"tk1a", "tk-ex-latia"},
+        {"tk1b", "tk-ex-latio"},
+        {"tk2a", "tk-ex-p"},
+        {"tk2b", "tk-ex-m"},
+        {"hsp", "hgssp"},
+
+        // McDonald's Collections
+        {"mcd11", "2011bw"},
+        {"mcd12", "2012bw"},
+        {"mcd14", "2014xy"},
+        {"mcd15", "2015xy"},
+        {"mcd16", "2016xy"},
+        {"mcd17", "2017sm"},
+        {"mcd18", "2018sm"},
+        {"mcd19", "2019sm"},
+        {"mcd21", "2021swsh"},
+        {"mcd22", "2022swsh"},
+        {"mcd23", "2023sv"},
+        {"mcd24", "2024sv"},
+
+        // SM specials
+        {"sm35", "sm3.5"},
+        {"sm75", "sm7.5"},
+
+        // SWSH specials / galleries
+        {"swsh35", "swsh3.5"},
+        {"swsh45", "swsh4.5"},
+        {"swsh45sv", "swsh4.5sv"},
+        {"cel25c", "cel25cc"},
+        {"swsh9tg", "swsh9.5tg"},
+        {"swsh10tg", "swsh10.5tg"},
+        {"pgo", "swsh10.5"},
+        {"swsh11tg", "swsh11.5tg"},
+        {"swsh12tg", "swsh12.5tg"},
+        {"swsh12pt5", "swsh12.5"},
+        {"swsh12pt5gg", "swsh12.5gg"},
+
+        // Scarlet & Violet (pokemontcg used unpadded / pt5 forms)
+        {"sv1", "sv01"},
+        {"sv2", "sv02"},
+        {"sv3", "sv03"},
+        {"sv3pt5", "sv03.5"},
+        {"sv4", "sv04"},
+        {"sv4pt5", "sv04.5"},
+        {"sv5", "sv05"},
+        {"sv6", "sv06"},
+        {"sv6pt5", "sv06.5"},
+        {"sv7", "sv07"},
+        {"sv8", "sv08"},
+        {"sv8pt5", "sv08.5"},
+        {"sv9", "sv09"},
+        {"zsv10pt5", "sv10.5b"},
+        {"rsv10pt5", "sv10.5w"},
+
+        // Mega Evolution era
+        {"me1", "me01"},
+        {"me2", "me02"},
+        {"me2pt5", "me02.5"},
+        {"me3", "me03"},
+        {"me4", "me04"},
+        {"me5", "me05"},
+    };
+    return kMap;
+}
+
+}  // namespace
+
+std::string canonicalizeWestSetId(std::string_view setId) {
+    if (setId.empty()) return {};
+    const auto& map = legacyAliases();
+    const auto it = map.find(std::string(setId));
+    if (it != map.end()) return it->second;
+    return std::string(setId);
+}
+
+}  // namespace ccm

core/src/games/pokemonjp/JapanesePokemonCardPreviewSource.cpp

@@ -439,4 +439,113 @@ JapanesePokemonCardPreviewSource::detectPrintVariants(std::string_view name,
     return parsed;
 }
 
+Result<AutoDetectedPrint> JapanesePokemonCardPreviewSource::parsePrintFromCardResponse(
+    const std::string& body) {
+    using R = Result<AutoDetectedPrint>;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.is_object()) {
+            return R::err("TCGdex JA card response is not a JSON object.");
+        }
+        AutoDetectedPrint print;
+        print.name = trim(j.value("name", ""));
+        print.setNo = normalizeLocalId(j.value("localId", ""));
+        print.rarity = trim(j.value("rarity", ""));
+        if (print.name.empty()) {
+            return R::err("TCGdex JA card has no name.");
+        }
+        if (print.setNo.empty() && j.contains("id") && j.at("id").is_string()) {
+            const std::string id = j.at("id").get<std::string>();
+            const auto dash = id.rfind('-');
+            if (dash != std::string::npos) {
+                print.setNo = normalizeLocalId(id.substr(dash + 1));
+            }
+        }
+        return R::ok(std::move(print));
+    } catch (const std::exception& e) {
+        return R::err(std::string("TCGdex JA card JSON parse error: ") + e.what());
+    }
+}
+
+Result<std::vector<AutoDetectedPrint>>
+JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog(
+    std::string_view setId,
+    std::string_view localId,
+    const JapanesePokemonEnCatalog& catalog) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string id = normalizeLocalId(localId);
+    if (setId.empty()) return R::err("Select a set first.");
+    if (id.empty()) return R::err("Card number is empty.");
+
+    // Prefer exact key, then leading-zero-insensitive scan ("1" ↔ "001").
+    auto found = catalog.findPrint(setId, id);
+    if (!found) {
+        for (const auto& print : catalog.printsForSet(setId)) {
+            if (localIdsMatch(print.localId, id)) {
+                found = print;
+                break;
+            }
+        }
+    }
+    if (!found) {
+        return R::err("Could not auto-detect card name from set number.");
+    }
+    AutoDetectedPrint print;
+    print.name = !found->nameEn.empty() ? found->nameEn : found->nameJa;
+    print.setNo = found->localId.empty() ? id : found->localId;
+    if (print.name.empty()) {
+        return R::err("Could not auto-detect card name from set number.");
+    }
+    std::vector<AutoDetectedPrint> out;
+    out.push_back(std::move(print));
+    return R::ok(std::move(out));
+}
+
+Result<AutoDetectedPrint> JapanesePokemonCardPreviewSource::detectBySetNo(
+    std::string_view setId,
+    std::string_view setNo) {
+    auto list = detectVariantsBySetNo(setId, setNo);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err(
+            "Could not auto-detect card name from set number.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>>
+JapanesePokemonCardPreviewSource::detectVariantsBySetNo(std::string_view setId,
+                                                        std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    if (setId.empty()) return R::err("Select a set first.");
+    const std::string id = normalizeLocalId(setNo);
+    if (id.empty()) return R::err("Card number is empty.");
+
+    auto cardResp = http_.get(buildCardUrl(setId, id));
+    if (cardResp) {
+        auto parsed = parsePrintFromCardResponse(cardResp.value());
+        if (parsed && localIdsMatch(parsed.value().setNo, id)) {
+            // Prefer EN catalog name when available (exact or zero-insensitive).
+            if (auto cat = catalog_.findPrint(setId, id); cat && !cat->nameEn.empty()) {
+                parsed.value().name = cat->nameEn;
+            } else {
+                for (const auto& p : catalog_.printsForSet(setId)) {
+                    if (localIdsMatch(p.localId, id) && !p.nameEn.empty()) {
+                        parsed.value().name = p.nameEn;
+                        break;
+                    }
+                }
+            }
+            std::vector<AutoDetectedPrint> out;
+            out.push_back(std::move(parsed).value());
+            return R::ok(std::move(out));
+        }
+    }
+
+    if (catalog_.hasPrintsForSet(setId)) {
+        return detectVariantsBySetNoFromCatalog(setId, id, catalog_);
+    }
+    return R::err("Could not auto-detect card name from set number.");
+}
+
 }  // namespace ccm

core/src/games/pokemonjp/JapanesePokemonEnCatalog.cpp

@@ -144,6 +144,20 @@ bool JapanesePokemonEnCatalog::hasPrintsForSet(std::string_view setId) const noe
     return it != printKeysBySet_.end() && !it->second.empty();
 }
 
+std::vector<JapanesePokemonPrintEnInfo>
+JapanesePokemonEnCatalog::printsForSet(std::string_view setId) const {
+    std::vector<JapanesePokemonPrintEnInfo> out;
+    const auto keysIt = printKeysBySet_.find(std::string(setId));
+    if (keysIt == printKeysBySet_.end()) return out;
+    out.reserve(keysIt->second.size());
+    for (const auto& key : keysIt->second) {
+        const auto pit = printsByKey_.find(key);
+        if (pit == printsByKey_.end()) continue;
+        out.push_back(pit->second);
+    }
+    return out;
+}
+
 std::string JapanesePokemonEnCatalog::tcgplayerImageUrl(std::string_view productId) {
     if (productId.empty()) return {};
     return std::string("https://product-images.tcgplayer.com/fit-in/437x437/") +

core/src/games/pokemonjp/JapanesePokemonSetSource.cpp

@@ -1,6 +1,8 @@
 #include "ccm/games/pokemonjp/JapanesePokemonSetSource.hpp"
 
+#include "ccm/games/pokemonjp/JapanesePokemonCardPreviewSource.hpp"
 #include "ccm/util/Rfc3986.hpp"
+#include "ccm/util/SetNoNatural.hpp"
 
 #include <nlohmann/json.hpp>
 
@@ -8,6 +10,8 @@
 #include <array>
 #include <string>
 #include <unordered_map>
+#include <unordered_set>
+#include <utility>
 
 namespace ccm {
 
@@ -55,6 +59,42 @@ const std::unordered_map<std::string, std::string>& setNameJaOverrides() {
     return false;
 }
 
+void gapFillFromEnCatalog(PokemonSetCatalogPack& pack,
+                          const JapanesePokemonEnCatalog& enCatalog) {
+    std::unordered_set<std::string> seen;
+    for (const auto& card : pack.cards) {
+        seen.insert(JapanesePokemonCardPreviewSource::normalizeLocalId(card.setNo));
+    }
+    for (const auto& print : enCatalog.printsForSet(pack.setId)) {
+        const std::string localId =
+            JapanesePokemonCardPreviewSource::normalizeLocalId(print.localId);
+        if (localId.empty() || !seen.insert(localId).second) continue;
+        std::string name = print.nameEn;
+        if (name.empty()) name = print.nameJa;
+        if (name.empty()) name = localId;
+        pack.cards.push_back(PokemonCatalogCard{localId, std::move(name)});
+    }
+}
+
+void sortPackCards(PokemonSetCatalogPack& pack) {
+    std::sort(pack.cards.begin(), pack.cards.end(),
+              [](const PokemonCatalogCard& a, const PokemonCatalogCard& b) {
+                  const int cmp = compareSetNoNatural(a.setNo, b.setNo);
+                  if (cmp != 0) return cmp < 0;
+                  return a.name < b.name;
+              });
+}
+
+void applyEnglishSetName(Set& s, const JapanesePokemonEnCatalog& catalog) {
+    if (auto en = catalog.findSet(s.id)) {
+        if (!en->nameEn.empty()) s.name = en->nameEn;
+        if (!en->releaseDate.empty()) s.releaseDate = en->releaseDate;
+    }
+    if (s.name.empty() || containsCjk(s.name)) {
+        s.name = s.id;
+    }
+}
+
 }  // namespace
 
 JapanesePokemonSetSource::JapanesePokemonSetSource(
@@ -152,6 +192,70 @@ JapanesePokemonSetSource::parseReleaseDate(const std::string& detailBody) {
     }
 }
 
+PokemonSetCatalogPack JapanesePokemonSetSource::catalogPackFromEnCatalog(
+    const Set& set, const JapanesePokemonEnCatalog& enCatalog) {
+    PokemonSetCatalogPack pack;
+    pack.setId = set.id;
+    pack.setName = set.name.empty() ? set.id : set.name;
+    for (const auto& print : enCatalog.printsForSet(set.id)) {
+        const std::string localId =
+            JapanesePokemonCardPreviewSource::normalizeLocalId(print.localId);
+        if (localId.empty()) continue;
+        std::string name = print.nameEn;
+        if (name.empty()) name = print.nameJa;
+        if (name.empty()) name = localId;
+        pack.cards.push_back(PokemonCatalogCard{localId, std::move(name)});
+    }
+    sortPackCards(pack);
+    return pack;
+}
+
+Result<PokemonSetCatalogPack> JapanesePokemonSetSource::parseCatalogPackFromSetDetail(
+    const std::string& detailBody,
+    const Set&         set,
+    const JapanesePokemonEnCatalog& enCatalog) {
+    auto rows = JapanesePokemonCardPreviewSource::parseSetCards(detailBody);
+    if (!rows) {
+        // Transient/NotFound from parse — treat empty cards as catalog-only.
+        if (rows.error().kind == PreviewLookupError::Kind::NotFound) {
+            auto pack = catalogPackFromEnCatalog(set, enCatalog);
+            if (pack.cards.empty()) {
+                return Result<PokemonSetCatalogPack>::err(
+                    "No cards for set " + set.id);
+            }
+            return Result<PokemonSetCatalogPack>::ok(std::move(pack));
+        }
+        return Result<PokemonSetCatalogPack>::err(rows.error().message);
+    }
+
+    PokemonSetCatalogPack pack;
+    pack.setId = set.id;
+    pack.setName = set.name.empty() ? set.id : set.name;
+
+    std::unordered_set<std::string> seen;
+    for (const auto& row : rows.value()) {
+        const std::string localId =
+            JapanesePokemonCardPreviewSource::normalizeLocalId(row.localId);
+        if (localId.empty() || !seen.insert(localId).second) continue;
+
+        std::string name;
+        if (auto print = enCatalog.findPrint(set.id, localId)) {
+            name = print->nameEn;
+            if (name.empty()) name = print->nameJa;
+        }
+        if (name.empty()) name = row.nameJa;
+        if (name.empty()) name = localId;
+        pack.cards.push_back(PokemonCatalogCard{localId, std::move(name)});
+    }
+
+    gapFillFromEnCatalog(pack, enCatalog);
+    sortPackCards(pack);
+    if (pack.cards.empty()) {
+        return Result<PokemonSetCatalogPack>::err("No cards for set " + set.id);
+    }
+    return Result<PokemonSetCatalogPack>::ok(std::move(pack));
+}
+
 Result<std::vector<Set>> JapanesePokemonSetSource::fetchAll() {
     auto listResp = http_.get(kListEndpoint);
     if (!listResp) return Result<std::vector<Set>>::err(listResp.error());
@@ -163,13 +267,7 @@ Result<std::vector<Set>> JapanesePokemonSetSource::fetchAll() {
     for (auto& s : out) {
         // Prefer catalog English; never leave Japanese TCGdex names in Set.name
         // (the set picker must stay English-only).
-        if (auto en = catalog_.findSet(s.id)) {
-            if (!en->nameEn.empty()) s.name = en->nameEn;
-            if (!en->releaseDate.empty()) s.releaseDate = en->releaseDate;
-        }
-        if (s.name.empty() || containsCjk(s.name)) {
-            s.name = s.id;
-        }
+        applyEnglishSetName(s, catalog_);
         if (!s.releaseDate.empty()) continue;
 
         auto detail = http_.get(buildSetDetailUrl(s.id));
@@ -185,19 +283,67 @@ Result<std::vector<Set>> JapanesePokemonSetSource::fetchAll() {
     return Result<std::vector<Set>>::ok(std::move(out));
 }
 
+Result<JapanesePokemonSetSource::FetchWithCatalog>
+JapanesePokemonSetSource::fetchAllWithCatalog() {
+    auto listResp = http_.get(kListEndpoint);
+    if (!listResp) return Result<FetchWithCatalog>::err(listResp.error());
+
+    auto parsed = parseListResponse(listResp.value());
+    if (!parsed) return Result<FetchWithCatalog>::err(parsed.error());
+
+    std::vector<Set> sets = std::move(parsed).value();
+    PokemonSetCatalog catalog;
+    catalog.packs.reserve(sets.size());
+
+    for (auto& s : sets) {
+        applyEnglishSetName(s, catalog_);
+
+        auto detail = http_.get(buildSetDetailUrl(s.id));
+        if (!detail) {
+            // Classic / catalog-only products often have no TCGdex detail.
+            auto pack = catalogPackFromEnCatalog(s, catalog_);
+            if (!pack.cards.empty()) {
+                catalog.packs.push_back(std::move(pack));
+            }
+            continue;
+        }
+
+        if (s.releaseDate.empty()) {
+            auto date = parseReleaseDate(detail.value());
+            if (date && !date.value().empty()) {
+                s.releaseDate = std::move(date).value();
+            }
+        }
+
+        auto pack = parseCatalogPackFromSetDetail(detail.value(), s, catalog_);
+        if (pack) {
+            catalog.packs.push_back(std::move(pack).value());
+        } else {
+            auto fallback = catalogPackFromEnCatalog(s, catalog_);
+            if (!fallback.cards.empty()) {
+                catalog.packs.push_back(std::move(fallback));
+            }
+        }
+    }
+
+    std::sort(sets.begin(), sets.end(),
+              [](const Set& a, const Set& b) { return a.releaseDate < b.releaseDate; });
+    std::sort(catalog.packs.begin(), catalog.packs.end(),
+              [](const PokemonSetCatalogPack& a, const PokemonSetCatalogPack& b) {
+                  return a.setName < b.setName;
+              });
+
+    FetchWithCatalog out;
+    out.sets = std::move(sets);
+    out.catalog = std::move(catalog);
+    return Result<FetchWithCatalog>::ok(std::move(out));
+}
+
 void JapanesePokemonSetSource::augmentCachedSets(std::vector<Set>& sets) const {
     // Stale caches may store set ids (or Japanese) as Set.name — re-apply the
     // bundled EN catalog so names like "Pokémon Jungle" are searchable again.
     for (auto& s : sets) {
-        if (auto en = catalog_.findSet(s.id)) {
-            if (!en->nameEn.empty()) s.name = en->nameEn;
-            if (!en->releaseDate.empty() && s.releaseDate.empty()) {
-                s.releaseDate = en->releaseDate;
-            }
-        }
-        if (s.name.empty() || containsCjk(s.name)) {
-            s.name = s.id;
-        }
+        applyEnglishSetName(s, catalog_);
     }
     appendMissingClassicProducts(sets);
     std::sort(sets.begin(), sets.end(),

core/src/games/yugioh/YuGiOhCardPreviewSource.cpp

@@ -555,4 +555,176 @@ Result<std::vector<AutoDetectedPrint>> YuGiOhCardPreviewSource::detectPrintVaria
     return parsePrintVariants(fallback.value(), canonicalSetName, name);
 }
 
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhCardPreviewSource::detectVariantsBySetNoFromCatalog(
+    const YuGiOhSetCatalog& catalog,
+    std::string_view setId,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string packId = std::string(trimAsciiSpaces(setId));
+    if (packId.empty()) return R::err("Select a set first.");
+
+    const std::string rawNo = std::string(trimAsciiSpaces(setNo));
+    if (rawNo.empty()) return R::err("Card number is empty.");
+
+    const std::string wantDigits =
+        ygoDigitsStripLeadingZeros(ygoCollectorDigitsFromInput(rawNo));
+    if (wantDigits.empty()) return R::err("Card number is empty.");
+
+    const YuGiOhSetCatalogPack* pack = catalog.findPack(packId);
+    if (pack == nullptr) {
+        // Allow callers to pass the display set name (HTTP fallback path).
+        for (const auto& candidate : catalog.packs) {
+            if (candidate.setName == packId) {
+                pack = &candidate;
+                break;
+            }
+        }
+    }
+    if (pack == nullptr) {
+        return R::err("Set not found in offline catalog. Run Sets → Update Yu-Gi-Oh! first.");
+    }
+
+    std::vector<AutoDetectedPrint> out;
+    std::unordered_set<std::string> seenNames;
+    for (const auto& card : pack->cards) {
+        if (!ygoCollectorDigitsEqual(card.setNo, rawNo)) continue;
+        if (card.name.empty()) continue;
+        if (!seenNames.insert(card.name).second) continue;
+        AutoDetectedPrint print;
+        print.name = card.name;
+        print.setNo = card.setNo;
+        print.rarity = card.rarity;
+        out.push_back(std::move(print));
+    }
+    if (out.empty()) {
+        return R::err("Could not auto-detect card name from set number.");
+    }
+    return R::ok(std::move(out));
+}
+
+std::string YuGiOhCardPreviewSource::buildCardsetOnlyUrl(std::string_view setName) {
+    return std::string("https://db.ygoprodeck.com/api/v7/cardinfo.php?cardset=") +
+           rfc3986PercentEncode(setName);
+}
+
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhCardPreviewSource::detectVariantsBySetNoFromCardset(
+    const std::string& body,
+    std::string_view preferredSetName,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string wantDigits =
+        ygoDigitsStripLeadingZeros(ygoCollectorDigitsFromInput(setNo));
+    if (wantDigits.empty()) return R::err("Card number is empty.");
+
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.contains("data") || !j.at("data").is_array()) {
+            return R::err("YGOPRODeck response missing 'data' array.");
+        }
+        const std::string preferredLower = toLower(trim(std::string(preferredSetName)));
+
+        std::vector<AutoDetectedPrint> out;
+        std::unordered_set<std::string> seen;
+        for (const auto& card : j.at("data")) {
+            const std::string cardName = trim(card.value("name", ""));
+            if (cardName.empty()) continue;
+            if (!card.contains("card_sets") || !card.at("card_sets").is_array()) continue;
+            for (const auto& printing : card.at("card_sets")) {
+                const std::string setName = trim(printing.value("set_name", ""));
+                const std::string setCode = trim(printing.value("set_code", ""));
+                if (setCode.empty()) continue;
+                if (ygoLikelyEuropeanRegionalSetCode(setCode)) continue;
+                if (!preferredLower.empty() && toLower(setName) != preferredLower) continue;
+                if (!ygoCollectorDigitsEqual(setCode, setNo)) continue;
+                AutoDetectedPrint print;
+                print.name = cardName;
+                print.setNo = setCode;
+                print.rarity = trim(printing.value("set_rarity", ""));
+                const std::string key = print.name + '\0' + print.setNo + '\0' + print.rarity;
+                if (!seen.insert(key).second) continue;
+                out.push_back(std::move(print));
+            }
+        }
+        if (out.empty()) {
+            return R::err("Could not auto-detect card name from set number.");
+        }
+        return R::ok(std::move(out));
+    } catch (const std::exception& e) {
+        return R::err(std::string("YGOPRODeck JSON parse error: ") + e.what());
+    }
+}
+
+Result<AutoDetectedPrint> YuGiOhCardPreviewSource::detectBySetNo(std::string_view setId,
+                                                                 std::string_view setNo) {
+    auto list = detectVariantsBySetNo(setId, setNo);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err(
+            "Could not auto-detect card name from set number.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>> YuGiOhCardPreviewSource::detectVariantsBySetNo(
+    std::string_view setId,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string setKey = std::string(trimAsciiSpaces(setId));
+    if (setKey.empty()) return R::err("Select a set first.");
+    if (ygoCollectorDigitsFromInput(setNo).empty()) {
+        return R::err("Card number is empty.");
+    }
+
+    // 1) Offline catalog (preferred — fast once cached).
+    if (catalogStore_ != nullptr) {
+        if (!catalogCache_) {
+            auto loaded = catalogStore_->load();
+            if (loaded) catalogCache_ = std::move(loaded).value();
+        }
+        if (catalogCache_ && !catalogCache_->empty()) {
+            auto fromCatalog =
+                detectVariantsBySetNoFromCatalog(*catalogCache_, setKey, setNo);
+
+            // Prefer YGOPRODeck when reachable so rarity (and multi-rarity
+            // variants) come through — the offline catalog may predate the
+            // rarity field or only keep one rarity per printing slot.
+            const YuGiOhSetCatalogPack* pack = catalogCache_->findPack(setKey);
+            std::string setName = setKey;
+            if (pack != nullptr) {
+                setName = pack->setName;
+            } else {
+                for (const auto& candidate : catalogCache_->packs) {
+                    if (candidate.setName == setKey) {
+                        setName = candidate.setName;
+                        break;
+                    }
+                }
+            }
+            if (!setName.empty()) {
+                auto resp = http_.get(buildCardsetOnlyUrl(setName));
+                if (resp) {
+                    auto fromHttp =
+                        detectVariantsBySetNoFromCardset(resp.value(), setName, setNo);
+                    if (fromHttp) return fromHttp;
+                }
+            }
+
+            if (fromCatalog) return fromCatalog;
+            // Prefer catalog miss text when HTTP also missed / was unreachable.
+            return fromCatalog;
+        }
+    }
+
+    // 2) No catalog: treat setKey as display set name and query YGOPRODeck.
+    auto resp = http_.get(buildCardsetOnlyUrl(setKey));
+    if (!resp) {
+        return R::err(
+            "Set catalog missing and YGOPRODeck lookup failed. "
+            "Run Sets → Update Yu-Gi-Oh! or check your network.");
+    }
+    return detectVariantsBySetNoFromCardset(resp.value(), setKey, setNo);
+}
+
 }  // namespace ccm

core/src/games/yugioh/YuGiOhSetSource.cpp

@@ -1,10 +1,15 @@
 #include "ccm/games/yugioh/YuGiOhSetSource.hpp"
 
+#include "ccm/util/YuGiOhPrintingSlot.hpp"
+
 #include <nlohmann/json.hpp>
 
 #include <algorithm>
 #include <array>
+#include <cctype>
 #include <string>
+#include <unordered_map>
+#include <utility>
 
 namespace ccm {
 namespace {
@@ -39,6 +44,47 @@ void appendMissingSetAliases(std::vector<Set>& sets) {
     }
 }
 
+[[nodiscard]] std::string ygoSlotKey(std::string_view setNo) {
+    const std::string abbrev = ygoAbbrevBeforeDash(setNo);
+    const std::string digits = ygoCollectorDigitsOnly(setNo);
+    if (abbrev.empty() || digits.empty()) return {};
+    return abbrev + "|" + digits;
+}
+
+[[nodiscard]] bool ygoHasEnRegionInfix(std::string_view setCode) {
+    const std::string_view s = trimAsciiSpaces(setCode);
+    const auto dash = s.find('-');
+    if (dash == std::string_view::npos || dash + 3 > s.size()) return false;
+    const std::string_view tail = s.substr(dash + 1);
+    if (tail.size() < 3) return false;
+    return (tail[0] == 'E' || tail[0] == 'e') && (tail[1] == 'N' || tail[1] == 'n')
+        && std::isdigit(static_cast<unsigned char>(tail[2])) != 0;
+}
+
+[[nodiscard]] std::string uppercaseAscii(std::string s) {
+    std::transform(s.begin(), s.end(), s.begin(), [](unsigned char c) {
+        return static_cast<char>(std::toupper(c));
+    });
+    return s;
+}
+
+[[nodiscard]] std::string resolvePackId(const std::unordered_map<std::string, std::string>& nameToId,
+                                        const std::string& setName,
+                                        const std::string& setCode) {
+    const auto it = nameToId.find(setName);
+    if (it != nameToId.end() && !it->second.empty()) return it->second;
+    const std::string abbrev = uppercaseAscii(ygoAbbrevBeforeDash(setCode));
+    return abbrev;
+}
+
+struct PackBuild {
+    std::string setId;
+    std::string setName;
+    // slotKey → index into cards (for EN preference upgrades).
+    std::unordered_map<std::string, std::size_t> slotIndex;
+    std::vector<YuGiOhCatalogCard>               cards;
+};
+
 }  // namespace
 
 YuGiOhSetSource::YuGiOhSetSource(IHttpClient& http) : http_(http) {}
@@ -73,10 +119,124 @@ Result<std::vector<Set>> YuGiOhSetSource::parseResponse(const std::string& body)
     }
 }
 
+Result<YuGiOhSetCatalog> YuGiOhSetSource::parseCatalog(const std::string&      body,
+                                                       const std::vector<Set>& sets) {
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.is_object() || !j.contains("data") || !j.at("data").is_array()) {
+            return Result<YuGiOhSetCatalog>::err(
+                "YGOPRODeck cardinfo response missing data array.");
+        }
+
+        std::unordered_map<std::string, std::string> nameToId;
+        nameToId.reserve(sets.size());
+        for (const auto& set : sets) {
+            if (set.name.empty() || set.id.empty()) continue;
+            // First wins — aliases and upstream rows rarely collide by name.
+            nameToId.emplace(set.name, set.id);
+        }
+
+        // Keyed by pack setId.
+        std::unordered_map<std::string, PackBuild> byId;
+
+        for (const auto& cardJson : j.at("data")) {
+            const std::string cardName = cardJson.value("name", "");
+            if (cardName.empty()) continue;
+            if (!cardJson.contains("card_sets") || !cardJson.at("card_sets").is_array()) {
+                continue;
+            }
+            for (const auto& printing : cardJson.at("card_sets")) {
+                const std::string setName = printing.value("set_name", "");
+                const std::string setCode = printing.value("set_code", "");
+                if (setName.empty() || setCode.empty()) continue;
+                if (ygoLikelyEuropeanRegionalSetCode(setCode)) continue;
+
+                const std::string slot = ygoSlotKey(setCode);
+                if (slot.empty()) continue;
+
+                const std::string packId = resolvePackId(nameToId, setName, setCode);
+                if (packId.empty()) continue;
+
+                auto& build = byId[packId];
+                if (build.setId.empty()) {
+                    build.setId = packId;
+                    build.setName = setName;
+                }
+
+                const auto existing = build.slotIndex.find(slot);
+                if (existing == build.slotIndex.end()) {
+                    build.slotIndex.emplace(slot, build.cards.size());
+                    const std::string setRarity(
+                        trimAsciiSpaces(printing.value("set_rarity", "")));
+                    build.cards.push_back(YuGiOhCatalogCard{setCode, cardName, setRarity});
+                    continue;
+                }
+
+                // Prefer an EN-embedded code over a bare / other-region equivalent.
+                auto& prev = build.cards[existing->second];
+                if (!ygoHasEnRegionInfix(prev.setNo) && ygoHasEnRegionInfix(setCode)) {
+                    prev.setNo = setCode;
+                    if (!cardName.empty()) prev.name = cardName;
+                    const std::string setRarity(
+                        trimAsciiSpaces(printing.value("set_rarity", "")));
+                    if (!setRarity.empty()) prev.rarity = setRarity;
+                } else if (prev.rarity.empty()) {
+                    prev.rarity = std::string(
+                        trimAsciiSpaces(printing.value("set_rarity", "")));
+                }
+            }
+        }
+
+        YuGiOhSetCatalog catalog;
+        catalog.packs.reserve(byId.size());
+        for (auto& [_, build] : byId) {
+            if (build.setId.empty() || build.cards.empty()) continue;
+            std::sort(build.cards.begin(), build.cards.end(),
+                      [](const YuGiOhCatalogCard& a, const YuGiOhCatalogCard& b) {
+                          if (a.setNo != b.setNo) return a.setNo < b.setNo;
+                          return a.name < b.name;
+                      });
+            YuGiOhSetCatalogPack pack;
+            pack.setId = std::move(build.setId);
+            pack.setName = std::move(build.setName);
+            pack.cards = std::move(build.cards);
+            catalog.packs.push_back(std::move(pack));
+        }
+
+        std::sort(catalog.packs.begin(), catalog.packs.end(),
+                  [](const YuGiOhSetCatalogPack& a, const YuGiOhSetCatalogPack& b) {
+                      return a.setName < b.setName;
+                  });
+        return Result<YuGiOhSetCatalog>::ok(std::move(catalog));
+    } catch (const std::exception& e) {
+        return Result<YuGiOhSetCatalog>::err(
+            std::string("YGOPRODeck catalog parse error: ") + e.what());
+    }
+}
+
 Result<std::vector<Set>> YuGiOhSetSource::fetchAll() {
     auto resp = http_.get(kEndpoint);
     if (!resp) return Result<std::vector<Set>>::err(resp.error());
     return parseResponse(resp.value());
 }
 
+Result<YuGiOhSetSource::FetchWithCatalog> YuGiOhSetSource::fetchAllWithCatalog() {
+    auto setsResp = http_.get(kEndpoint);
+    if (!setsResp) return Result<FetchWithCatalog>::err(setsResp.error());
+
+    auto sets = parseResponse(setsResp.value());
+    if (!sets) return Result<FetchWithCatalog>::err(sets.error());
+
+    auto infoResp = http_.get(kCardInfoEndpoint);
+    if (!infoResp) return Result<FetchWithCatalog>::err(infoResp.error());
+
+    auto catalog = parseCatalog(infoResp.value(), sets.value());
+    if (!catalog) return Result<FetchWithCatalog>::err(catalog.error());
+
+    FetchWithCatalog out;
+    out.sets = std::move(sets).value();
+    out.catalog = std::move(catalog).value();
+    return Result<FetchWithCatalog>::ok(std::move(out));
+}
+
 }  // namespace ccm

core/src/games/yugiohbandai/YuGiOhBandaiCardPreviewSource.cpp

@@ -0,0 +1,453 @@
+#include "ccm/games/yugiohbandai/YuGiOhBandaiCardPreviewSource.hpp"
+
+#include "ccm/games/yugiohbandai/YuGiOhBandaiSetSource.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <algorithm>
+#include <cctype>
+#include <sstream>
+
+namespace ccm {
+
+namespace {
+
+using K = PreviewLookupError::Kind;
+
+std::string trimCopy(std::string_view s) {
+    while (!s.empty() &&
+           (s.front() == ' ' || s.front() == '\t' || s.front() == '\n' ||
+            s.front() == '\r')) {
+        s.remove_prefix(1);
+    }
+    while (!s.empty() &&
+           (s.back() == ' ' || s.back() == '\t' || s.back() == '\n' ||
+            s.back() == '\r')) {
+        s.remove_suffix(1);
+    }
+    return std::string(s);
+}
+
+std::string urlEncode(std::string_view s) {
+    static constexpr char hex[] = "0123456789ABCDEF";
+    std::string out;
+    out.reserve(s.size() * 3);
+    for (unsigned char c : s) {
+        if (std::isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~') {
+            out.push_back(static_cast<char>(c));
+        } else if (c == ' ') {
+            out.push_back('+');
+        } else {
+            out.push_back('%');
+            out.push_back(hex[c >> 4]);
+            out.push_back(hex[c & 0xF]);
+        }
+    }
+    return out;
+}
+
+std::string wikiTitleEncode(std::string_view title) {
+    // MediaWiki titles use underscores for spaces in the titles= parameter.
+    std::string s;
+    s.reserve(title.size());
+    for (char c : title) {
+        s.push_back(c == ' ' ? '_' : c);
+    }
+    return urlEncode(s);
+}
+
+bool endsWith(std::string_view s, std::string_view suffix) {
+    return s.size() >= suffix.size() &&
+           s.compare(s.size() - suffix.size(), suffix.size(), suffix) == 0;
+}
+
+int askMatchRank(std::string_view pageTitle, std::string_view preferredSetId) {
+    // Lower is better.
+    if (preferredSetId == "bansealdass") {
+        if (endsWith(pageTitle, " (Bandai Sealdass)")) return 0;
+        if (endsWith(pageTitle, " (Bandai)")) return 1;
+        return 5;
+    }
+    if (preferredSetId == "ban3") {
+        if (endsWith(pageTitle, " (Bandai)")) return 0;
+        if (endsWith(pageTitle, " (English Bandai)")) return 1;
+        if (endsWith(pageTitle, " (Bandai Sealdass)")) return 4;
+        return 5;
+    }
+    if (endsWith(pageTitle, " (Bandai)")) return 0;
+    if (endsWith(pageTitle, " (English Bandai)")) return 1;
+    if (endsWith(pageTitle, " (Bandai Sealdass)")) return 3;
+    return 5;
+}
+
+}  // namespace
+
+YuGiOhBandaiCardPreviewSource::YuGiOhBandaiCardPreviewSource(IHttpClient& http)
+    : http_(http) {}
+
+std::string YuGiOhBandaiCardPreviewSource::preferredPageTitle(
+    std::string_view name,
+    std::string_view setId,
+    std::string_view setNo) {
+    const std::string n = trimCopy(name);
+    if (n.empty()) return {};
+
+    const std::string num = YuGiOhBandaiSetSource::normalizeCardNumber(setNo);
+    if (setId == "bansealdass") {
+        return n + " (Bandai Sealdass)";
+    }
+    // Promo pages on Yugipedia often omit the "(Bandai)" disambiguator
+    // (e.g. Blue-Eyes White Dragon's 3-Body Connection for TA2).
+    if (setId == "banpromo-j" || setId == "banpromo-ta" ||
+        isAlphanumericPromoNumber(num)) {
+        return n;
+    }
+    if (num == "118" || setId == "ban3") {
+        // Prefer JP Bandai page for most ban3 cards; English #118 uses the
+        // English Bandai title when setNo is 118.
+        if (num == "118") return n + " (English Bandai)";
+    }
+    return n + " (Bandai)";
+}
+
+std::string YuGiOhBandaiCardPreviewSource::buildPageImagesUrl(
+    std::string_view pageTitle) {
+    return std::string(
+               "https://yugipedia.com/api.php?action=query&format=json"
+               "&prop=pageimages&piprop=original&titles=") +
+           wikiTitleEncode(pageTitle);
+}
+
+std::string YuGiOhBandaiCardPreviewSource::buildAskByNameUrl(
+    std::string_view englishName) {
+    // [[Category:Bandai cards]][[English name::<name>]]|?English name|?Bandai number|?Rarity|limit=20
+    std::ostringstream q;
+    q << "[[Category:Bandai cards]][[English name::" << englishName
+      << "]]|?English name|?Bandai number|?Rarity|limit=20";
+    return std::string("https://yugipedia.com/api.php?action=ask&format=json&query=") +
+           urlEncode(q.str());
+}
+
+std::string YuGiOhBandaiCardPreviewSource::buildAskByNumberUrl(
+    std::string_view setNo) {
+    const std::string n = YuGiOhBandaiSetSource::normalizeCardNumber(setNo);
+    std::ostringstream q;
+    q << "[[Category:Bandai cards]][[Bandai number::" << n
+      << "]]|?English name|?Bandai number|?Rarity|limit=20";
+    return std::string("https://yugipedia.com/api.php?action=ask&format=json&query=") +
+           urlEncode(q.str());
+}
+
+bool YuGiOhBandaiCardPreviewSource::isAlphanumericPromoNumber(
+    std::string_view setNo) {
+    const std::string n = YuGiOhBandaiSetSource::normalizeCardNumber(setNo);
+    for (unsigned char c : n) {
+        if (std::isalpha(c)) return true;
+    }
+    return false;
+}
+
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhBandaiCardPreviewSource::parsePromoGalleryResponse(
+    const std::string& body,
+    std::string_view wantedSetNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string want = YuGiOhBandaiSetSource::normalizeCardNumber(wantedSetNo);
+    if (want.empty()) return R::err("Card number is empty.");
+
+    std::string wikitext;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.contains("parse") || !j.at("parse").contains("wikitext")) {
+            return R::err("Yugipedia promo gallery response missing parse.wikitext");
+        }
+        wikitext = j.at("parse").at("wikitext").get<std::string>();
+    } catch (const std::exception& e) {
+        return R::err(std::string("Yugipedia promo gallery JSON parse error: ") +
+                      e.what());
+    }
+
+    auto cards = YuGiOhBandaiSetSource::parseGalleryWikitext(wikitext);
+    if (!cards) return R::err(cards.error());
+
+    std::vector<AutoDetectedPrint> out;
+    for (const auto& card : cards.value()) {
+        if (YuGiOhBandaiSetSource::normalizeCardNumber(card.setNo) != want) continue;
+        AutoDetectedPrint print;
+        print.name = card.name;
+        print.setNo = card.setNo;
+        print.rarity = card.rarity;
+        print.setId = YuGiOhBandaiSetSource::setIdForNumber(card.setNo);
+        print.setName = YuGiOhBandaiSetSource::setNameForId(print.setId);
+        print.language = "Japanese";
+        out.push_back(std::move(print));
+    }
+    return R::ok(std::move(out));
+}
+
+AutoDetectedPrint YuGiOhBandaiCardPreviewSource::enrichPrint(
+    AutoDetectedPrint print,
+    std::string_view pageTitle) {
+    print.name = YuGiOhBandaiSetSource::englishNameFromGalleryTitle(pageTitle);
+
+    if (endsWith(pageTitle, " (Bandai Sealdass)")) {
+        print.setId = "bansealdass";
+        print.language = "Japanese";
+    } else if (endsWith(pageTitle, " (English Bandai)")) {
+        print.setId = "ban3";
+        print.language = "English";
+    } else {
+        if (print.setId.empty() && !print.setNo.empty()) {
+            print.setId = YuGiOhBandaiSetSource::setIdForNumber(print.setNo);
+        }
+        print.language = "Japanese";
+    }
+    if (!print.setId.empty()) {
+        print.setName = YuGiOhBandaiSetSource::setNameForId(print.setId);
+    }
+    return print;
+}
+
+Result<std::string, PreviewLookupError>
+YuGiOhBandaiCardPreviewSource::parsePageImagesResponse(const std::string& body) {
+    using R = Result<std::string, PreviewLookupError>;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.contains("query") || !j.at("query").contains("pages")) {
+            return R::err({K::Transient, "Yugipedia pageimages: missing query.pages"});
+        }
+        const auto& pages = j.at("query").at("pages");
+        for (auto it = pages.begin(); it != pages.end(); ++it) {
+            const auto& page = it.value();
+            if (page.contains("missing") || page.contains("invalid")) continue;
+            if (page.contains("original") && page.at("original").contains("source")) {
+                const auto url = page.at("original").at("source").get<std::string>();
+                if (!url.empty()) return R::ok(url);
+            }
+            if (page.contains("thumbnail") && page.at("thumbnail").contains("original")) {
+                const auto url = page.at("thumbnail").at("original").get<std::string>();
+                if (!url.empty()) return R::ok(url);
+            }
+        }
+        return R::err({K::NotFound, "Yugipedia pageimages: no image for page"});
+    } catch (const std::exception& e) {
+        return R::err({K::Transient,
+                       std::string("Yugipedia pageimages JSON parse error: ") + e.what()});
+    }
+}
+
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhBandaiCardPreviewSource::parseAskResponse(const std::string& body,
+                                                std::string_view preferredSetId,
+                                                std::string_view wantedSetNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    try {
+        const auto j = nlohmann::json::parse(body);
+        if (!j.contains("query") || !j.at("query").contains("results")) {
+            return R::err("Yugipedia ask: missing query.results");
+        }
+        const auto& results = j.at("query").at("results");
+        if (!results.is_object() || results.empty()) {
+            return R::ok({});
+        }
+
+        const std::string wantNo = YuGiOhBandaiSetSource::normalizeCardNumber(wantedSetNo);
+
+        std::vector<std::pair<int, AutoDetectedPrint>> ranked;
+        for (auto it = results.begin(); it != results.end(); ++it) {
+            const std::string pageTitle = it.key();
+            const auto& printouts = it.value().value("printouts", nlohmann::json::object());
+
+            AutoDetectedPrint print;
+            if (printouts.contains("Bandai number") &&
+                printouts.at("Bandai number").is_array() &&
+                !printouts.at("Bandai number").empty()) {
+                const auto& num = printouts.at("Bandai number").at(0);
+                if (num.is_number_integer()) {
+                    print.setNo = YuGiOhBandaiSetSource::normalizeCardNumber(
+                        std::to_string(num.get<int>()));
+                } else if (num.is_string()) {
+                    print.setNo =
+                        YuGiOhBandaiSetSource::normalizeCardNumber(num.get<std::string>());
+                }
+            }
+            // Defense-in-depth: SMW ask should be exact, but never accept a
+            // different Bandai number (e.g. #11 when the user asked for #1).
+            if (!wantNo.empty() &&
+                YuGiOhBandaiSetSource::normalizeCardNumber(print.setNo) != wantNo) {
+                continue;
+            }
+            if (printouts.contains("Rarity") && printouts.at("Rarity").is_array() &&
+                !printouts.at("Rarity").empty()) {
+                const auto& rar = printouts.at("Rarity").at(0);
+                if (rar.is_object() && rar.contains("fulltext")) {
+                    print.rarity = rar.at("fulltext").get<std::string>();
+                } else if (rar.is_string()) {
+                    print.rarity = rar.get<std::string>();
+                }
+            }
+            if (printouts.contains("English name") &&
+                printouts.at("English name").is_array() &&
+                !printouts.at("English name").empty()) {
+                print.name = printouts.at("English name").at(0).get<std::string>();
+            }
+
+            print = enrichPrint(std::move(print), pageTitle);
+            if (print.name.empty()) continue;
+            ranked.emplace_back(askMatchRank(pageTitle, preferredSetId), std::move(print));
+        }
+
+        std::sort(ranked.begin(), ranked.end(),
+                  [](const auto& a, const auto& b) { return a.first < b.first; });
+
+        std::vector<AutoDetectedPrint> out;
+        out.reserve(ranked.size());
+        for (auto& [rank, print] : ranked) {
+            (void)rank;
+            out.push_back(std::move(print));
+        }
+        return R::ok(std::move(out));
+    } catch (const std::exception& e) {
+        return R::err(std::string("Yugipedia ask JSON parse error: ") + e.what());
+    }
+}
+
+Result<std::string, PreviewLookupError>
+YuGiOhBandaiCardPreviewSource::fetchPageImage(std::string_view pageTitle) {
+    using R = Result<std::string, PreviewLookupError>;
+    if (pageTitle.empty()) {
+        return R::err({K::NotFound, "Empty Bandai page title"});
+    }
+    const std::string url = buildPageImagesUrl(pageTitle);
+    auto resp = http_.get(url);
+    if (!resp) return R::err({K::Transient, resp.error()});
+    return parsePageImagesResponse(resp.value());
+}
+
+Result<std::vector<AutoDetectedPrint>> YuGiOhBandaiCardPreviewSource::askByName(
+    std::string_view name,
+    std::string_view setId) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string n = trimCopy(name);
+    if (n.empty()) return R::err("Card name is empty.");
+    const std::string url = buildAskByNameUrl(n);
+    auto resp = http_.get(url);
+    if (!resp) return R::err(resp.error());
+    return parseAskResponse(resp.value(), setId);
+}
+
+Result<std::vector<AutoDetectedPrint>> YuGiOhBandaiCardPreviewSource::askByNumber(
+    std::string_view setId,
+    std::string_view setNo) {
+    using R = Result<std::vector<AutoDetectedPrint>>;
+    const std::string n = YuGiOhBandaiSetSource::normalizeCardNumber(setNo);
+    if (n.empty()) return R::err("Card number is empty.");
+
+    // Promo codes (J1, TA2, …) are not valid values for SMW's numeric
+    // `Bandai number` property — ask returns a type error. Resolve them from
+    // the promotional set gallery instead.
+    R list = [&]() -> R {
+        if (isAlphanumericPromoNumber(n)) {
+            static constexpr const char* kPromoGallery =
+                "Set Card Galleries:Promotional Cards (Bandai)";
+            const std::string url = YuGiOhBandaiSetSource::buildGalleryParseUrl(kPromoGallery);
+            auto resp = http_.get(url);
+            if (!resp) return R::err(resp.error());
+            return parsePromoGalleryResponse(resp.value(), n);
+        }
+        const std::string url = buildAskByNumberUrl(n);
+        auto resp = http_.get(url);
+        if (!resp) return R::err(resp.error());
+        return parseAskResponse(resp.value(), setId, n);
+    }();
+    if (!list) return list;
+
+    const std::string wantSet = trimCopy(setId);
+    if (wantSet.empty()) return list;
+
+    std::vector<AutoDetectedPrint> filtered;
+    filtered.reserve(list.value().size());
+    for (auto& print : list.value()) {
+        if (print.setId == wantSet) filtered.push_back(std::move(print));
+    }
+    if (filtered.empty()) {
+        return R::err("No Bandai card matched that number in the selected set.");
+    }
+    return R::ok(std::move(filtered));
+}
+
+Result<AutoDetectedPrint> YuGiOhBandaiCardPreviewSource::detectBySetNo(
+    std::string_view setId,
+    std::string_view setNo) {
+    auto list = detectVariantsBySetNo(setId, setNo);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err(
+            "Could not auto-detect Bandai card from number.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhBandaiCardPreviewSource::detectVariantsBySetNo(std::string_view setId,
+                                                     std::string_view setNo) {
+    return askByNumber(setId, setNo);
+}
+
+Result<std::string, PreviewLookupError>
+YuGiOhBandaiCardPreviewSource::fetchImageUrl(std::string_view name,
+                                             std::string_view setId,
+                                             std::string_view setNo) {
+    using R = Result<std::string, PreviewLookupError>;
+
+    const std::string title = preferredPageTitle(name, setId, setNo);
+    auto direct = fetchPageImage(title);
+    if (direct) return direct;
+    // Try English Bandai if JP page missed for #118.
+    if (YuGiOhBandaiSetSource::normalizeCardNumber(setNo) == "118") {
+        auto en = fetchPageImage(trimCopy(name) + " (English Bandai)");
+        if (en) return en;
+    }
+
+    // Fall back to SMW ask by name, then pageimages on the best hit.
+    auto variants = askByName(name, setId);
+    if (!variants) {
+        // Prefer the original NotFound if ask also failed transiently only
+        // after a clean miss; otherwise surface ask error as Transient.
+        if (direct.error().kind == K::NotFound) {
+            return R::err({K::Transient, variants.error()});
+        }
+        return direct;
+    }
+    if (variants.value().empty()) {
+        return R::err({K::NotFound, "No Bandai card matched the name"});
+    }
+
+    const auto& best = variants.value().front();
+    std::string askTitle = preferredPageTitle(best.name, best.setId, best.setNo);
+    if (best.language == "English") {
+        askTitle = best.name + " (English Bandai)";
+    } else if (best.setId == "bansealdass") {
+        askTitle = best.name + " (Bandai Sealdass)";
+    }
+    return fetchPageImage(askTitle);
+}
+
+Result<AutoDetectedPrint> YuGiOhBandaiCardPreviewSource::detectFirstPrint(
+    std::string_view name,
+    std::string_view setId) {
+    auto list = detectPrintVariants(name, setId);
+    if (!list) return Result<AutoDetectedPrint>::err(list.error());
+    if (list.value().empty()) {
+        return Result<AutoDetectedPrint>::err("Could not auto-detect Bandai print metadata.");
+    }
+    return Result<AutoDetectedPrint>::ok(list.value().front());
+}
+
+Result<std::vector<AutoDetectedPrint>>
+YuGiOhBandaiCardPreviewSource::detectPrintVariants(std::string_view name,
+                                                    std::string_view setId) {
+    return askByName(name, setId);
+}
+
+}  // namespace ccm

core/src/games/yugiohbandai/YuGiOhBandaiGameModule.cpp

@@ -0,0 +1,8 @@
+#include "ccm/games/yugiohbandai/YuGiOhBandaiGameModule.hpp"
+
+namespace ccm {
+
+YuGiOhBandaiGameModule::YuGiOhBandaiGameModule(IHttpClient& http)
+    : setSource_(http), previewSource_(http) {}
+
+}  // namespace ccm

core/src/games/yugiohbandai/YuGiOhBandaiSetSource.cpp

@@ -0,0 +1,267 @@
+#include "ccm/games/yugiohbandai/YuGiOhBandaiSetSource.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <cctype>
+#include <regex>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace ccm {
+
+namespace {
+
+std::string trimCopy(std::string_view s) {
+    while (!s.empty() &&
+           (s.front() == ' ' || s.front() == '\t' || s.front() == '\n' ||
+            s.front() == '\r')) {
+        s.remove_prefix(1);
+    }
+    while (!s.empty() &&
+           (s.back() == ' ' || s.back() == '\t' || s.back() == '\n' ||
+            s.back() == '\r')) {
+        s.remove_suffix(1);
+    }
+    return std::string(s);
+}
+
+std::string urlEncode(std::string_view s) {
+    static constexpr char hex[] = "0123456789ABCDEF";
+    std::string out;
+    out.reserve(s.size() * 3);
+    for (unsigned char c : s) {
+        if (std::isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~') {
+            out.push_back(static_cast<char>(c));
+        } else if (c == ' ') {
+            out.push_back('+');
+        } else {
+            out.push_back('%');
+            out.push_back(hex[c >> 4]);
+            out.push_back(hex[c & 0xF]);
+        }
+    }
+    return out;
+}
+
+}  // namespace
+
+YuGiOhBandaiSetSource::YuGiOhBandaiSetSource(IHttpClient& http) : http_(http) {}
+
+const std::vector<YuGiOhBandaiSetSource::SetManifestEntry>&
+YuGiOhBandaiSetSource::setManifest() {
+    static const std::vector<SetManifestEntry> kManifest{
+        {"ban1", "1st Generation", "1998/09/01",
+         "Set Card Galleries:Yu-Gi-Oh! Bandai OCG: 1st Generation", ""},
+        {"ban2", "2nd Generation", "1998/11/01",
+         "Set Card Galleries:2nd Generation (Bandai)", ""},
+        {"ban3", "3rd Generation", "1999/03/06",
+         "Set Card Galleries:3rd Generation (Bandai)", ""},
+        {"banpromo-j", "Jump Promos", "1998/01/01",
+         "Set Card Galleries:Promotional Cards (Bandai)", "J"},
+        {"banpromo-ta", "Toei Promos", "1999/03/06",
+         "Set Card Galleries:Promotional Cards (Bandai)", "TA"},
+        {"bansealdass", "Sealdass", "1999/06/01",
+         "Set Card Galleries:Yu-Gi-Oh! Bandai Sealdass", ""},
+    };
+    return kManifest;
+}
+
+Result<std::vector<Set>> YuGiOhBandaiSetSource::parseResponse(
+    const std::string& /*unused*/) {
+    std::vector<Set> out;
+    for (const auto& e : setManifest()) {
+        out.push_back(Set{e.id, e.name, e.releaseDate});
+    }
+    return Result<std::vector<Set>>::ok(std::move(out));
+}
+
+Result<std::vector<Set>> YuGiOhBandaiSetSource::fetchAll() {
+    return parseResponse({});
+}
+
+std::string YuGiOhBandaiSetSource::buildGalleryParseUrl(std::string_view pageTitle) {
+    return std::string(
+               "https://yugipedia.com/api.php?action=parse&format=json&formatversion=2"
+               "&prop=wikitext&page=") +
+           urlEncode(pageTitle);
+}
+
+std::string YuGiOhBandaiSetSource::normalizeCardNumber(std::string_view setNo) {
+    std::string s = trimCopy(setNo);
+    if (s.empty()) return {};
+
+    // Strip a leading '#' if present.
+    if (s.front() == '#') s.erase(s.begin());
+
+    // Uppercase letter prefix forms: j1 / ta2.
+    bool hasAlpha = false;
+    for (char& c : s) {
+        if (std::isalpha(static_cast<unsigned char>(c))) {
+            hasAlpha = true;
+            c = static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
+        }
+    }
+    if (hasAlpha) return s;
+
+    // Pure decimal: strip leading zeros but keep a single zero.
+    std::size_t i = 0;
+    while (i + 1 < s.size() && s[i] == '0') ++i;
+    return s.substr(i);
+}
+
+std::string YuGiOhBandaiSetSource::expandRarityCode(std::string_view code) {
+    const std::string c = trimCopy(code);
+    if (c == "C") return "Common";
+    if (c == "R") return "Rare";
+    if (c == "SR") return "Super Rare";
+    if (c == "UR") return "Ultra Rare";
+    if (c == "HFR" || c == "Holo Seal" || c == "HS") return "Holo Seal";
+    if (c.empty()) return {};
+    return c;
+}
+
+std::string YuGiOhBandaiSetSource::englishNameFromGalleryTitle(
+    std::string_view pageTitle) {
+    std::string name = trimCopy(pageTitle);
+    const auto stripSuffix = [&](std::string_view suffix) {
+        if (name.size() > suffix.size() &&
+            name.compare(name.size() - suffix.size(), suffix.size(), suffix) == 0) {
+            name.resize(name.size() - suffix.size());
+            name = trimCopy(name);
+        }
+    };
+    stripSuffix(" (Bandai Sealdass)");
+    stripSuffix(" (English Bandai)");
+    stripSuffix(" (Bandai)");
+    return name;
+}
+
+std::string YuGiOhBandaiSetSource::setIdForNumber(std::string_view setNo) {
+    const std::string n = normalizeCardNumber(setNo);
+    if (n.empty()) return {};
+    if (!n.empty() && (n[0] == 'J' || n[0] == 'j')) return "banpromo-j";
+    if (n.size() >= 2 && (n[0] == 'T' || n[0] == 't') &&
+        (n[1] == 'A' || n[1] == 'a')) {
+        return "banpromo-ta";
+    }
+
+    // Pure decimal → generation by range. Callers that need Sealdass must
+    // pass set context; number alone cannot disambiguate 1–42 vs Sealdass.
+    bool pureDecimal = true;
+    for (char c : n) {
+        if (!std::isdigit(static_cast<unsigned char>(c))) {
+            pureDecimal = false;
+            break;
+        }
+    }
+    if (!pureDecimal) return {};
+
+    const int v = std::stoi(n);
+    if (v >= 1 && v <= 42) return "ban1";
+    if (v >= 43 && v <= 88) return "ban2";
+    if (v >= 89 && v <= 118) return "ban3";
+    return {};
+}
+
+std::string YuGiOhBandaiSetSource::setNameForId(std::string_view setId) {
+    for (const auto& e : setManifest()) {
+        if (e.id == setId) return e.name;
+    }
+    return {};
+}
+
+Result<std::vector<YuGiOhBandaiCatalogCard>>
+YuGiOhBandaiSetSource::parseGalleryWikitext(const std::string& wikitext) {
+    using R = Result<std::vector<YuGiOhBandaiCatalogCard>>;
+    std::vector<YuGiOhBandaiCatalogCard> out;
+
+    // Generation galleries (raw):
+    //   … | {{pound}}014 ([[R]]) {{Gallery card names|Dark Magician (Bandai)|ja}}
+    // Promo galleries (often expanded with <br />):
+    //   … | [[TA2]] ([[SR]])<br />{{Gallery card names|Blue-Eyes White Dragon's 3-Body Connection|ja}}
+    static const std::regex kLine(
+        R"((?:\{\{pound\}\}|\[\[)([A-Za-z0-9]+)(?:\]\])?(?:\s*\(\[\[([A-Za-z0-9]+)\]\]\))?[^\n]*?\{\{Gallery card names\|([^}|]+))",
+        std::regex::ECMAScript);
+
+    std::unordered_set<std::string> seen;
+    for (std::sregex_iterator it(wikitext.begin(), wikitext.end(), kLine), end;
+         it != end; ++it) {
+        const std::smatch& m = *it;
+        YuGiOhBandaiCatalogCard card;
+        card.setNo = normalizeCardNumber(m[1].str());
+        if (card.setNo.empty()) continue;
+        if (m[2].matched) {
+            card.rarity = expandRarityCode(m[2].str());
+        }
+        card.name = englishNameFromGalleryTitle(m[3].str());
+        if (card.name.empty()) continue;
+        if (!seen.insert(card.setNo).second) continue;
+        out.push_back(std::move(card));
+    }
+
+    return R::ok(std::move(out));
+}
+
+Result<YuGiOhBandaiSetSource::FetchWithCatalog>
+YuGiOhBandaiSetSource::fetchAllWithCatalog() {
+    using R = Result<FetchWithCatalog>;
+
+    auto sets = parseResponse({});
+    if (!sets) return R::err(sets.error());
+
+    YuGiOhBandaiSetCatalog catalog;
+    std::unordered_map<std::string, std::string> pageCache;
+
+    for (const auto& entry : setManifest()) {
+        const std::string page = entry.galleryPage;
+        std::string body;
+        auto cached = pageCache.find(page);
+        if (cached != pageCache.end()) {
+            body = cached->second;
+        } else {
+            const std::string url = buildGalleryParseUrl(page);
+            auto resp = http_.get(url);
+            if (!resp) return R::err(resp.error());
+            body = std::move(resp).value();
+            pageCache.emplace(page, body);
+        }
+
+        std::string wikitext;
+        try {
+            const auto j = nlohmann::json::parse(body);
+            if (!j.contains("parse") || !j.at("parse").contains("wikitext")) {
+                return R::err("Yugipedia gallery response missing parse.wikitext");
+            }
+            wikitext = j.at("parse").at("wikitext").get<std::string>();
+        } catch (const std::exception& e) {
+            return R::err(std::string("Yugipedia gallery JSON parse error: ") +
+                          e.what());
+        }
+
+        auto cards = parseGalleryWikitext(wikitext);
+        if (!cards) return R::err(cards.error());
+
+        YuGiOhBandaiSetCatalogPack pack;
+        pack.setId = entry.id;
+        pack.setName = entry.name;
+        const std::string prefix = entry.setNoPrefix;
+        for (const auto& card : cards.value()) {
+            if (!prefix.empty()) {
+                if (card.setNo.size() < prefix.size() ||
+                    card.setNo.compare(0, prefix.size(), prefix) != 0) {
+                    continue;
+                }
+            }
+            pack.cards.push_back(card);
+        }
+
+        catalog.packs.push_back(std::move(pack));
+    }
+
+    FetchWithCatalog out;
+    out.sets = std::move(sets).value();
+    out.catalog = std::move(catalog);
+    return R::ok(std::move(out));
+}
+
+}  // namespace ccm

core/src/services/CardFilter.cpp

@@ -83,6 +83,22 @@ bool matchesDigiBattle99Filter(const DigiBattle99Card& card, std::string_view fi
     return false;
 }
 
+bool matchesYuGiOhBandaiFilter(const YuGiOhBandaiCard& card, std::string_view filter) {
+    if (filter.empty()) return true;
+
+    const std::string needle = asciiLower(filter);
+
+    if (containsLower(card.name, needle))                     return true;
+    if (containsLower(card.set.name, needle))                 return true;
+    if (containsLower(card.setNo, needle))                    return true;
+    if (containsLower(card.rarity, needle))                   return true;
+    if (containsLower(to_string(card.language), needle))      return true;
+    if (containsLower(to_string(card.condition), needle))     return true;
+    if (containsLower(std::to_string(card.amount), needle))   return true;
+    if (containsLower(card.note, needle))                     return true;
+    return false;
+}
+
 bool matchesJapanesePokemonFilter(const JapanesePokemonCard& card,
                                   std::string_view filter) {
     if (filter.empty()) return true;

core/src/services/CardPreviewService.cpp

@@ -262,6 +262,35 @@ Result<std::vector<AutoDetectedPrint>> CardPreviewService::detectPrintVariants(
     return it->second->detectPrintVariants(name, setId);
 }
 
+Result<AutoDetectedPrint> CardPreviewService::detectBySetNo(Game game,
+                                                            std::string_view setId,
+                                                            std::string_view setNo) {
+    auto it = sources_.find(game);
+    if (it == sources_.end() || it->second == nullptr) {
+        return Result<AutoDetectedPrint>::err("No preview source registered for this game.");
+    }
+    if (!it->second->supportsAutoDetectPrint()) {
+        return Result<AutoDetectedPrint>::err("Auto-detect not enabled for this game.");
+    }
+    return it->second->detectBySetNo(setId, setNo);
+}
+
+Result<std::vector<AutoDetectedPrint>> CardPreviewService::detectVariantsBySetNo(
+    Game game,
+    std::string_view setId,
+    std::string_view setNo) {
+    auto it = sources_.find(game);
+    if (it == sources_.end() || it->second == nullptr) {
+        return Result<std::vector<AutoDetectedPrint>>::err(
+            "No preview source registered for this game.");
+    }
+    if (!it->second->supportsAutoDetectPrint()) {
+        return Result<std::vector<AutoDetectedPrint>>::err(
+            "Auto-detect not enabled for this game.");
+    }
+    return it->second->detectVariantsBySetNo(setId, setNo);
+}
+
 Result<std::string> CardPreviewService::fetchImageBytesByUrl(std::string_view url) {
     // The by-URL path is used for fixed per-game card-back fallback images.
     // A failure there is always transient (the URL itself is constant), so

core/src/services/CardSorter.cpp

@@ -293,6 +293,79 @@ void sortDigiBattle99Cards(std::vector<DigiBattle99Card>& cards,
     }
 }
 
+void sortYuGiOhBandaiCards(std::vector<YuGiOhBandaiCard>& cards,
+                           YuGiOhBandaiSortColumn column,
+                           bool ascending) {
+    switch (column) {
+    case YuGiOhBandaiSortColumn::Name:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(a.name) < asciiLower(b.name);
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::SetReleaseDate:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(a.set.releaseDate) < asciiLower(b.set.releaseDate);
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::SetNo:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(a.setNo) < asciiLower(b.setNo);
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Rarity:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(a.rarity) < asciiLower(b.rarity);
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Language:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(to_string(a.language)) < asciiLower(to_string(b.language));
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Condition:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(to_string(a.condition)) < asciiLower(to_string(b.condition));
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Amount:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return a.amount < b.amount;
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Holo:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return a.holo < b.holo;
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Signed:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return a.signed_ < b.signed_;
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Altered:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return a.altered < b.altered;
+            }, ascending));
+        break;
+    case YuGiOhBandaiSortColumn::Note:
+        std::stable_sort(cards.begin(), cards.end(), directional(
+            [](const YuGiOhBandaiCard& a, const YuGiOhBandaiCard& b) {
+                return asciiLower(a.note) < asciiLower(b.note);
+            }, ascending));
+        break;
+    }
+}
+
 void sortJapanesePokemonCards(std::vector<JapanesePokemonCard>& cards,
                               JapanesePokemonSortColumn column,
                               bool ascending) {

core/src/services/DigiBattle99SetCatalogService.cpp

@@ -0,0 +1,50 @@
+#include "ccm/services/DigiBattle99SetCatalogService.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <utility>
+
+namespace ccm {
+
+namespace fs = std::filesystem;
+
+DigiBattle99SetCatalogService::DigiBattle99SetCatalogService(IFileSystem&   fs,
+                                                             ConfigService& config,
+                                                             DirNameFn      dirName)
+    : fs_(fs), config_(config), dirName_(std::move(dirName)) {}
+
+fs::path DigiBattle99SetCatalogService::catalogPath() const {
+    return fs::path(config_.current().dataStorage) / dirName_(Game::DigiBattle99) /
+           "set-catalog.json";
+}
+
+bool DigiBattle99SetCatalogService::exists() const {
+    return fs_.exists(catalogPath());
+}
+
+Result<DigiBattle99SetCatalog> DigiBattle99SetCatalogService::load() const {
+    const auto p = catalogPath();
+    if (!fs_.exists(p)) {
+        return Result<DigiBattle99SetCatalog>::err(
+            "Digimon Digi-Battle set catalog not yet downloaded.");
+    }
+    auto text = fs_.readText(p);
+    if (!text) return Result<DigiBattle99SetCatalog>::err(text.error());
+    try {
+        const auto j = nlohmann::json::parse(text.value());
+        return Result<DigiBattle99SetCatalog>::ok(j.get<DigiBattle99SetCatalog>());
+    } catch (const std::exception& e) {
+        return Result<DigiBattle99SetCatalog>::err(
+            std::string("set-catalog.json parse error: ") + e.what());
+    }
+}
+
+Result<void> DigiBattle99SetCatalogService::save(const DigiBattle99SetCatalog& catalog) {
+    const auto p = catalogPath();
+    auto dir = fs_.ensureDirectory(p.parent_path());
+    if (!dir) return dir;
+    const nlohmann::json j = catalog;
+    return fs_.writeText(p, j.dump(2));
+}
+
+}  // namespace ccm

core/src/services/DigiBattle99SetCompletion.cpp

@@ -0,0 +1,129 @@
+#include "ccm/services/DigiBattle99SetCompletion.hpp"
+
+#include "ccm/games/digibattle99/DigiBattle99CardPreviewSource.hpp"
+
+#include <algorithm>
+#include <array>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace ccm {
+
+namespace {
+
+using OwnedBySet = std::unordered_map<std::string, std::unordered_set<std::string>>;
+
+bool passesLanguageFilter(const DigiBattle99Card& card,
+                          std::optional<Language> languageFilter) {
+    return !languageFilter.has_value() || card.language == *languageFilter;
+}
+
+OwnedBySet ownedSetNosBySetId(const std::vector<DigiBattle99Card>& collection,
+                              std::optional<Language>              languageFilter) {
+    OwnedBySet out;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id.empty()) continue;
+        const std::string setNo =
+            DigiBattle99CardPreviewSource::normalizeCardNumber(card.setNo);
+        if (setNo.empty()) continue;
+        out[card.set.id].insert(setNo);
+    }
+    return out;
+}
+
+}  // namespace
+
+std::vector<Language>
+digiBattle99LanguagesInCollection(const std::vector<DigiBattle99Card>& collection) {
+    const auto& langs = allLanguages();
+    std::array<bool, 10> present{};
+    for (const auto& card : collection) {
+        for (std::size_t i = 0; i < langs.size(); ++i) {
+            if (langs[i] == card.language) {
+                present[i] = true;
+                break;
+            }
+        }
+    }
+
+    std::vector<Language> out;
+    for (std::size_t i = 0; i < langs.size(); ++i) {
+        if (present[i]) out.push_back(langs[i]);
+    }
+    return out;
+}
+
+std::vector<DigiBattle99SetCompletionProgress>
+computeDigiBattle99SetCompletion(const std::vector<DigiBattle99Card>& collection,
+                                 const DigiBattle99SetCatalog&        catalog,
+                                 std::optional<Language>              languageFilter) {
+    const OwnedBySet owned = ownedSetNosBySetId(collection, languageFilter);
+
+    std::vector<DigiBattle99SetCompletionProgress> out;
+    out.reserve(owned.size());
+
+    for (const auto& [setId, ownedNos] : owned) {
+        const auto* pack = catalog.findPack(setId);
+        if (pack == nullptr || pack->cards.empty()) continue;
+
+        std::size_t matched = 0;
+        for (const auto& card : pack->cards) {
+            const std::string catalogNo =
+                DigiBattle99CardPreviewSource::normalizeCardNumber(card.setNo);
+            if (!catalogNo.empty() && ownedNos.count(catalogNo) != 0) ++matched;
+        }
+
+        DigiBattle99SetCompletionProgress row;
+        row.setId = pack->setId;
+        row.setName = pack->setName;
+        row.ownedUnique = matched;
+        row.total = pack->cards.size();
+        out.push_back(std::move(row));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const DigiBattle99SetCompletionProgress& a,
+                 const DigiBattle99SetCompletionProgress& b) {
+                  return a.setName < b.setName;
+              });
+    return out;
+}
+
+std::vector<DigiBattle99ChecklistEntry>
+digiBattle99ChecklistForSet(const std::vector<DigiBattle99Card>& collection,
+                            const DigiBattle99SetCatalog&        catalog,
+                            std::string_view                     setId,
+                            std::optional<Language>              languageFilter) {
+    const auto* pack = catalog.findPack(setId);
+    if (pack == nullptr) return {};
+
+    std::unordered_set<std::string> ownedNos;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id != setId) continue;
+        const std::string setNo =
+            DigiBattle99CardPreviewSource::normalizeCardNumber(card.setNo);
+        if (!setNo.empty()) ownedNos.insert(setNo);
+    }
+
+    std::vector<DigiBattle99ChecklistEntry> out;
+    out.reserve(pack->cards.size());
+    for (const auto& card : pack->cards) {
+        DigiBattle99ChecklistEntry entry;
+        entry.setNo = DigiBattle99CardPreviewSource::normalizeCardNumber(card.setNo);
+        entry.name = card.name;
+        entry.owned = !entry.setNo.empty() && ownedNos.count(entry.setNo) != 0;
+        out.push_back(std::move(entry));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const DigiBattle99ChecklistEntry& a,
+                 const DigiBattle99ChecklistEntry& b) {
+                  if (a.setNo != b.setNo) return a.setNo < b.setNo;
+                  return a.name < b.name;
+              });
+    return out;
+}
+
+}  // namespace ccm

core/src/services/PokemonSetCatalogService.cpp

@@ -0,0 +1,54 @@
+#include "ccm/services/PokemonSetCatalogService.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <utility>
+
+namespace ccm {
+
+namespace fs = std::filesystem;
+
+PokemonSetCatalogService::PokemonSetCatalogService(IFileSystem&   fs,
+                                                   ConfigService& config,
+                                                   DirNameFn      dirName)
+    : fs_(fs), config_(config), dirName_(std::move(dirName)) {}
+
+fs::path PokemonSetCatalogService::catalogPath(PokemonRegion region) const {
+    const char* file = region == PokemonRegion::Asia ? "set-catalog-asia.json"
+                                                     : "set-catalog-west.json";
+    return fs::path(config_.current().dataStorage) / dirName_(Game::Pokemon) / file;
+}
+
+bool PokemonSetCatalogService::exists(PokemonRegion region) const {
+    return fs_.exists(catalogPath(region));
+}
+
+Result<PokemonSetCatalog> PokemonSetCatalogService::load(PokemonRegion region) const {
+    const auto p = catalogPath(region);
+    if (!fs_.exists(p)) {
+        return Result<PokemonSetCatalog>::err(
+            region == PokemonRegion::Asia
+                ? "Asia Pokemon set catalog not yet downloaded."
+                : "West Pokemon set catalog not yet downloaded.");
+    }
+    auto text = fs_.readText(p);
+    if (!text) return Result<PokemonSetCatalog>::err(text.error());
+    try {
+        const auto j = nlohmann::json::parse(text.value());
+        return Result<PokemonSetCatalog>::ok(j.get<PokemonSetCatalog>());
+    } catch (const std::exception& e) {
+        return Result<PokemonSetCatalog>::err(
+            std::string("set-catalog.json parse error: ") + e.what());
+    }
+}
+
+Result<void> PokemonSetCatalogService::save(PokemonRegion             region,
+                                            const PokemonSetCatalog&  catalog) {
+    const auto p = catalogPath(region);
+    auto dir = fs_.ensureDirectory(p.parent_path());
+    if (!dir) return dir;
+    const nlohmann::json j = catalog;
+    return fs_.writeText(p, j.dump(2));
+}
+
+}  // namespace ccm

core/src/services/PokemonSetCompletion.cpp

@@ -0,0 +1,217 @@
+#include "ccm/services/PokemonSetCompletion.hpp"
+
+#include "ccm/games/pokemon/PokemonCardPreviewSource.hpp"
+#include "ccm/games/pokemon/PokemonWestSetId.hpp"
+#include "ccm/games/pokemonjp/JapanesePokemonCardPreviewSource.hpp"
+#include "ccm/util/SetNoNatural.hpp"
+
+#include <algorithm>
+#include <array>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace ccm {
+
+namespace {
+
+struct OwnedSetInfo {
+    std::unordered_set<std::string> nos;
+    std::string                     releaseDate;
+};
+
+using OwnedBySet = std::unordered_map<std::string, OwnedSetInfo>;
+
+bool passesLanguageFilter(const PokemonCard& card, std::optional<Language> languageFilter) {
+    return !languageFilter.has_value() || card.language == *languageFilter;
+}
+
+bool passesRegionFilter(const PokemonCard& card, std::optional<PokemonRegion> regionFilter) {
+    return !regionFilter.has_value() || card.region == *regionFilter;
+}
+
+std::string normalizeForRegion(PokemonRegion region, std::string_view setNo) {
+    if (region == PokemonRegion::Asia) {
+        return JapanesePokemonCardPreviewSource::normalizeLocalId(setNo);
+    }
+    return PokemonCardPreviewSource::normalizeCollectorNumber(setNo);
+}
+
+std::string westSetKey(std::string_view setId) {
+    return canonicalizeWestSetId(setId);
+}
+
+OwnedBySet ownedSetNosBySetId(const std::vector<PokemonCard>& collection,
+                              PokemonRegion                   region,
+                              std::optional<Language>         languageFilter) {
+    OwnedBySet out;
+    for (const auto& card : collection) {
+        if (card.region != region) continue;
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id.empty()) continue;
+        const std::string setNo = normalizeForRegion(region, card.setNo);
+        if (setNo.empty()) continue;
+        const std::string setKey =
+            region == PokemonRegion::West ? westSetKey(card.set.id) : card.set.id;
+        auto& info = out[setKey];
+        info.nos.insert(setNo);
+        if (info.releaseDate.empty() && !card.set.releaseDate.empty()) {
+            info.releaseDate = card.set.releaseDate;
+        }
+    }
+    return out;
+}
+
+std::vector<PokemonSetCompletionProgress>
+computeForCatalog(const std::vector<PokemonCard>& collection,
+                  const PokemonSetCatalog&        catalog,
+                  PokemonRegion                   region,
+                  std::optional<Language>         languageFilter) {
+    const OwnedBySet owned = ownedSetNosBySetId(collection, region, languageFilter);
+
+    std::vector<PokemonSetCompletionProgress> out;
+    out.reserve(owned.size());
+
+    for (const auto& [setId, info] : owned) {
+        const auto* pack = catalog.findPack(setId);
+        if (pack == nullptr || pack->cards.empty()) continue;
+
+        std::size_t matched = 0;
+        for (const auto& card : pack->cards) {
+            const std::string catalogNo = normalizeForRegion(region, card.setNo);
+            if (!catalogNo.empty() && info.nos.count(catalogNo) != 0) ++matched;
+        }
+
+        PokemonSetCompletionProgress row;
+        row.region = region;
+        row.setId = pack->setId;
+        row.setName = pack->setName;
+        row.releaseDate = info.releaseDate;
+        row.ownedUnique = matched;
+        row.total = pack->cards.size();
+        out.push_back(std::move(row));
+    }
+    return out;
+}
+
+}  // namespace
+
+std::vector<Language>
+pokemonLanguagesInCollection(const std::vector<PokemonCard>& collection,
+                             std::optional<PokemonRegion>    regionFilter) {
+    const auto& langs = allLanguages();
+    std::array<bool, 10> present{};
+    for (const auto& card : collection) {
+        if (!passesRegionFilter(card, regionFilter)) continue;
+        for (std::size_t i = 0; i < langs.size(); ++i) {
+            if (langs[i] == card.language) {
+                present[i] = true;
+                break;
+            }
+        }
+    }
+
+    std::vector<Language> out;
+    for (std::size_t i = 0; i < langs.size(); ++i) {
+        if (present[i]) out.push_back(langs[i]);
+    }
+    return out;
+}
+
+std::vector<PokemonRegion>
+pokemonRegionsInCollection(const std::vector<PokemonCard>& collection,
+                           const PokemonSetCatalog&        westCatalog,
+                           const PokemonSetCatalog&        asiaCatalog) {
+    std::vector<PokemonRegion> out;
+    const auto westRows =
+        computeForCatalog(collection, westCatalog, PokemonRegion::West, std::nullopt);
+    if (!westRows.empty()) out.push_back(PokemonRegion::West);
+    const auto asiaRows =
+        computeForCatalog(collection, asiaCatalog, PokemonRegion::Asia, std::nullopt);
+    if (!asiaRows.empty()) out.push_back(PokemonRegion::Asia);
+    return out;
+}
+
+std::vector<PokemonSetCompletionProgress>
+computePokemonSetCompletion(const std::vector<PokemonCard>& collection,
+                            const PokemonSetCatalog&        westCatalog,
+                            const PokemonSetCatalog&        asiaCatalog,
+                            std::optional<PokemonRegion>    regionFilter,
+                            std::optional<Language>         languageFilter) {
+    std::vector<PokemonSetCompletionProgress> out;
+
+    const bool includeWest =
+        !regionFilter.has_value() || *regionFilter == PokemonRegion::West;
+    const bool includeAsia =
+        !regionFilter.has_value() || *regionFilter == PokemonRegion::Asia;
+
+    if (includeWest) {
+        auto west = computeForCatalog(collection, westCatalog, PokemonRegion::West,
+                                      languageFilter);
+        out.insert(out.end(), std::make_move_iterator(west.begin()),
+                   std::make_move_iterator(west.end()));
+    }
+    if (includeAsia) {
+        auto asia = computeForCatalog(collection, asiaCatalog, PokemonRegion::Asia,
+                                      languageFilter);
+        out.insert(out.end(), std::make_move_iterator(asia.begin()),
+                   std::make_move_iterator(asia.end()));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const PokemonSetCompletionProgress& a,
+                 const PokemonSetCompletionProgress& b) {
+                  // YYYY/MM/DD lex order is chronological (CardSorter parity).
+                  if (a.releaseDate != b.releaseDate) {
+                      return a.releaseDate < b.releaseDate;
+                  }
+                  if (a.setName != b.setName) return a.setName < b.setName;
+                  return static_cast<int>(a.region) < static_cast<int>(b.region);
+              });
+    return out;
+}
+
+std::vector<PokemonChecklistEntry>
+pokemonChecklistForSet(const std::vector<PokemonCard>& collection,
+                       const PokemonSetCatalog&        westCatalog,
+                       const PokemonSetCatalog&        asiaCatalog,
+                       PokemonRegion                   region,
+                       std::string_view                setId,
+                       std::optional<Language>         languageFilter) {
+    const PokemonSetCatalog& catalog =
+        region == PokemonRegion::Asia ? asiaCatalog : westCatalog;
+    const std::string wantSetId =
+        region == PokemonRegion::West ? westSetKey(setId) : std::string(setId);
+    const auto* pack = catalog.findPack(wantSetId);
+    if (pack == nullptr) return {};
+
+    std::unordered_set<std::string> ownedNos;
+    for (const auto& card : collection) {
+        if (card.region != region) continue;
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        const std::string cardSetId =
+            region == PokemonRegion::West ? westSetKey(card.set.id) : card.set.id;
+        if (cardSetId != wantSetId) continue;
+        const std::string setNo = normalizeForRegion(region, card.setNo);
+        if (!setNo.empty()) ownedNos.insert(setNo);
+    }
+
+    std::vector<PokemonChecklistEntry> out;
+    out.reserve(pack->cards.size());
+    for (const auto& card : pack->cards) {
+        PokemonChecklistEntry entry;
+        entry.setNo = normalizeForRegion(region, card.setNo);
+        entry.name = card.name;
+        entry.owned = !entry.setNo.empty() && ownedNos.count(entry.setNo) != 0;
+        out.push_back(std::move(entry));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const PokemonChecklistEntry& a, const PokemonChecklistEntry& b) {
+                  const int cmp = compareSetNoNatural(a.setNo, b.setNo);
+                  if (cmp != 0) return cmp < 0;
+                  return a.name < b.name;
+              });
+    return out;
+}
+
+}  // namespace ccm

core/src/services/SetService.cpp

@@ -20,6 +20,10 @@ Result<std::vector<Set>> SetService::updateSets(Game game) {
     return fetched;
 }
 
+Result<void> SetService::saveSets(Game game, const std::vector<Set>& sets) {
+    return repo_.save(game, sets);
+}
+
 Result<std::vector<Set>> SetService::getSets(Game game) {
     auto loaded = repo_.load(game);
     if (!loaded) return loaded;

core/src/services/YuGiOhBandaiSetCatalogService.cpp

@@ -0,0 +1,50 @@
+#include "ccm/services/YuGiOhBandaiSetCatalogService.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <utility>
+
+namespace ccm {
+
+namespace fs = std::filesystem;
+
+YuGiOhBandaiSetCatalogService::YuGiOhBandaiSetCatalogService(IFileSystem&   fs,
+                                                             ConfigService& config,
+                                                             DirNameFn      dirName)
+    : fs_(fs), config_(config), dirName_(std::move(dirName)) {}
+
+fs::path YuGiOhBandaiSetCatalogService::catalogPath() const {
+    return fs::path(config_.current().dataStorage) / dirName_(Game::YuGiOhBandai) /
+           "set-catalog.json";
+}
+
+bool YuGiOhBandaiSetCatalogService::exists() const {
+    return fs_.exists(catalogPath());
+}
+
+Result<YuGiOhBandaiSetCatalog> YuGiOhBandaiSetCatalogService::load() const {
+    const auto p = catalogPath();
+    if (!fs_.exists(p)) {
+        return Result<YuGiOhBandaiSetCatalog>::err(
+            "Yu-Gi-Oh! (Bandai) set catalog not yet downloaded.");
+    }
+    auto text = fs_.readText(p);
+    if (!text) return Result<YuGiOhBandaiSetCatalog>::err(text.error());
+    try {
+        const auto j = nlohmann::json::parse(text.value());
+        return Result<YuGiOhBandaiSetCatalog>::ok(j.get<YuGiOhBandaiSetCatalog>());
+    } catch (const std::exception& e) {
+        return Result<YuGiOhBandaiSetCatalog>::err(
+            std::string("set-catalog.json parse error: ") + e.what());
+    }
+}
+
+Result<void> YuGiOhBandaiSetCatalogService::save(const YuGiOhBandaiSetCatalog& catalog) {
+    const auto p = catalogPath();
+    auto dir = fs_.ensureDirectory(p.parent_path());
+    if (!dir) return dir;
+    const nlohmann::json j = catalog;
+    return fs_.writeText(p, j.dump(2));
+}
+
+}  // namespace ccm

core/src/services/YuGiOhBandaiSetCompletion.cpp

@@ -0,0 +1,128 @@
+#include "ccm/services/YuGiOhBandaiSetCompletion.hpp"
+
+#include "ccm/games/yugiohbandai/YuGiOhBandaiSetSource.hpp"
+
+#include <algorithm>
+#include <array>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace ccm {
+
+namespace {
+
+using OwnedBySet = std::unordered_map<std::string, std::unordered_set<std::string>>;
+
+bool passesLanguageFilter(const YuGiOhBandaiCard& card,
+                          std::optional<Language> languageFilter) {
+    return !languageFilter.has_value() || card.language == *languageFilter;
+}
+
+OwnedBySet ownedSetNosBySetId(const std::vector<YuGiOhBandaiCard>& collection,
+                              std::optional<Language>              languageFilter) {
+    OwnedBySet out;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id.empty()) continue;
+        const std::string setNo = YuGiOhBandaiSetSource::normalizeCardNumber(card.setNo);
+        if (setNo.empty()) continue;
+        out[card.set.id].insert(setNo);
+    }
+    return out;
+}
+
+}  // namespace
+
+std::vector<Language>
+yuGiOhBandaiLanguagesInCollection(const std::vector<YuGiOhBandaiCard>& collection) {
+    const auto& langs = allLanguages();
+    std::array<bool, 10> present{};
+    for (const auto& card : collection) {
+        for (std::size_t i = 0; i < langs.size(); ++i) {
+            if (langs[i] == card.language) {
+                present[i] = true;
+                break;
+            }
+        }
+    }
+
+    std::vector<Language> out;
+    for (std::size_t i = 0; i < langs.size(); ++i) {
+        if (present[i]) out.push_back(langs[i]);
+    }
+    return out;
+}
+
+std::vector<YuGiOhBandaiSetCompletionProgress>
+computeYuGiOhBandaiSetCompletion(const std::vector<YuGiOhBandaiCard>& collection,
+                                 const YuGiOhBandaiSetCatalog&        catalog,
+                                 std::optional<Language>              languageFilter) {
+    const OwnedBySet owned = ownedSetNosBySetId(collection, languageFilter);
+
+    std::vector<YuGiOhBandaiSetCompletionProgress> out;
+    out.reserve(owned.size());
+
+    for (const auto& [setId, ownedNos] : owned) {
+        const auto* pack = catalog.findPack(setId);
+        if (pack == nullptr || pack->cards.empty()) continue;
+
+        std::size_t matched = 0;
+        for (const auto& card : pack->cards) {
+            const std::string catalogNo =
+                YuGiOhBandaiSetSource::normalizeCardNumber(card.setNo);
+            if (!catalogNo.empty() && ownedNos.count(catalogNo) != 0) ++matched;
+        }
+
+        YuGiOhBandaiSetCompletionProgress row;
+        row.setId = pack->setId;
+        row.setName = pack->setName;
+        row.ownedUnique = matched;
+        row.total = pack->cards.size();
+        out.push_back(std::move(row));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const YuGiOhBandaiSetCompletionProgress& a,
+                 const YuGiOhBandaiSetCompletionProgress& b) {
+                  return a.setName < b.setName;
+              });
+    return out;
+}
+
+std::vector<YuGiOhBandaiChecklistEntry>
+yuGiOhBandaiChecklistForSet(const std::vector<YuGiOhBandaiCard>& collection,
+                            const YuGiOhBandaiSetCatalog&        catalog,
+                            std::string_view                     setId,
+                            std::optional<Language>              languageFilter) {
+    const auto* pack = catalog.findPack(setId);
+    if (pack == nullptr) return {};
+
+    std::unordered_set<std::string> ownedNos;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id != setId) continue;
+        const std::string setNo = YuGiOhBandaiSetSource::normalizeCardNumber(card.setNo);
+        if (!setNo.empty()) ownedNos.insert(setNo);
+    }
+
+    std::vector<YuGiOhBandaiChecklistEntry> out;
+    out.reserve(pack->cards.size());
+    for (const auto& card : pack->cards) {
+        YuGiOhBandaiChecklistEntry entry;
+        entry.setNo = YuGiOhBandaiSetSource::normalizeCardNumber(card.setNo);
+        entry.name = card.name;
+        entry.rarity = card.rarity;
+        entry.owned = !entry.setNo.empty() && ownedNos.count(entry.setNo) != 0;
+        out.push_back(std::move(entry));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const YuGiOhBandaiChecklistEntry& a,
+                 const YuGiOhBandaiChecklistEntry& b) {
+                  if (a.setNo != b.setNo) return a.setNo < b.setNo;
+                  return a.name < b.name;
+              });
+    return out;
+}
+
+}  // namespace ccm

core/src/services/YuGiOhSetCatalogService.cpp

@@ -0,0 +1,49 @@
+#include "ccm/services/YuGiOhSetCatalogService.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <utility>
+
+namespace ccm {
+
+namespace fs = std::filesystem;
+
+YuGiOhSetCatalogService::YuGiOhSetCatalogService(IFileSystem&   fs,
+                                                 ConfigService& config,
+                                                 DirNameFn      dirName)
+    : fs_(fs), config_(config), dirName_(std::move(dirName)) {}
+
+fs::path YuGiOhSetCatalogService::catalogPath() const {
+    return fs::path(config_.current().dataStorage) / dirName_(Game::YuGiOh) /
+           "set-catalog.json";
+}
+
+bool YuGiOhSetCatalogService::exists() const {
+    return fs_.exists(catalogPath());
+}
+
+Result<YuGiOhSetCatalog> YuGiOhSetCatalogService::load() const {
+    const auto p = catalogPath();
+    if (!fs_.exists(p)) {
+        return Result<YuGiOhSetCatalog>::err("Yu-Gi-Oh! set catalog not yet downloaded.");
+    }
+    auto text = fs_.readText(p);
+    if (!text) return Result<YuGiOhSetCatalog>::err(text.error());
+    try {
+        const auto j = nlohmann::json::parse(text.value());
+        return Result<YuGiOhSetCatalog>::ok(j.get<YuGiOhSetCatalog>());
+    } catch (const std::exception& e) {
+        return Result<YuGiOhSetCatalog>::err(
+            std::string("set-catalog.json parse error: ") + e.what());
+    }
+}
+
+Result<void> YuGiOhSetCatalogService::save(const YuGiOhSetCatalog& catalog) {
+    const auto p = catalogPath();
+    auto dir = fs_.ensureDirectory(p.parent_path());
+    if (!dir) return dir;
+    const nlohmann::json j = catalog;
+    return fs_.writeText(p, j.dump(2));
+}
+
+}  // namespace ccm

core/src/services/YuGiOhSetCompletion.cpp

@@ -0,0 +1,132 @@
+#include "ccm/services/YuGiOhSetCompletion.hpp"
+
+#include "ccm/util/YuGiOhPrintingSlot.hpp"
+
+#include <algorithm>
+#include <array>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace ccm {
+
+namespace {
+
+using OwnedBySet = std::unordered_map<std::string, std::unordered_set<std::string>>;
+
+[[nodiscard]] std::string ygoSlotKey(std::string_view setNo) {
+    const std::string abbrev = ygoAbbrevBeforeDash(setNo);
+    const std::string digits = ygoCollectorDigitsOnly(setNo);
+    if (abbrev.empty() || digits.empty()) return {};
+    return abbrev + "|" + digits;
+}
+
+bool passesLanguageFilter(const YuGiOhCard& card, std::optional<Language> languageFilter) {
+    return !languageFilter.has_value() || card.language == *languageFilter;
+}
+
+OwnedBySet ownedSlotsBySetId(const std::vector<YuGiOhCard>& collection,
+                             std::optional<Language>        languageFilter) {
+    OwnedBySet out;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id.empty()) continue;
+        const std::string key = ygoSlotKey(card.setNo);
+        if (key.empty()) continue;
+        out[card.set.id].insert(key);
+    }
+    return out;
+}
+
+}  // namespace
+
+std::vector<Language>
+yuGiOhLanguagesInCollection(const std::vector<YuGiOhCard>& collection) {
+    const auto& langs = allLanguages();
+    std::array<bool, 10> present{};
+    for (const auto& card : collection) {
+        for (std::size_t i = 0; i < langs.size(); ++i) {
+            if (langs[i] == card.language) {
+                present[i] = true;
+                break;
+            }
+        }
+    }
+
+    std::vector<Language> out;
+    for (std::size_t i = 0; i < langs.size(); ++i) {
+        if (present[i]) out.push_back(langs[i]);
+    }
+    return out;
+}
+
+std::vector<YuGiOhSetCompletionProgress>
+computeYuGiOhSetCompletion(const std::vector<YuGiOhCard>& collection,
+                           const YuGiOhSetCatalog&         catalog,
+                           std::optional<Language>        languageFilter) {
+    const OwnedBySet owned = ownedSlotsBySetId(collection, languageFilter);
+
+    std::vector<YuGiOhSetCompletionProgress> out;
+    out.reserve(owned.size());
+
+    for (const auto& [setId, ownedSlots] : owned) {
+        const auto* pack = catalog.findPack(setId);
+        if (pack == nullptr || pack->cards.empty()) continue;
+
+        std::size_t matched = 0;
+        for (const auto& card : pack->cards) {
+            const std::string key = ygoSlotKey(card.setNo);
+            if (!key.empty() && ownedSlots.count(key) != 0) ++matched;
+        }
+
+        YuGiOhSetCompletionProgress row;
+        row.setId = pack->setId;
+        row.setName = pack->setName;
+        row.ownedUnique = matched;
+        row.total = pack->cards.size();
+        out.push_back(std::move(row));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const YuGiOhSetCompletionProgress& a,
+                 const YuGiOhSetCompletionProgress& b) {
+                  return a.setName < b.setName;
+              });
+    return out;
+}
+
+std::vector<YuGiOhChecklistEntry>
+yuGiOhChecklistForSet(const std::vector<YuGiOhCard>& collection,
+                      const YuGiOhSetCatalog&         catalog,
+                      std::string_view                setId,
+                      std::optional<Language>         languageFilter) {
+    const auto* pack = catalog.findPack(setId);
+    if (pack == nullptr) return {};
+
+    std::unordered_set<std::string> ownedSlots;
+    for (const auto& card : collection) {
+        if (!passesLanguageFilter(card, languageFilter)) continue;
+        if (card.set.id != setId) continue;
+        const std::string key = ygoSlotKey(card.setNo);
+        if (!key.empty()) ownedSlots.insert(key);
+    }
+
+    std::vector<YuGiOhChecklistEntry> out;
+    out.reserve(pack->cards.size());
+    for (const auto& card : pack->cards) {
+        YuGiOhChecklistEntry entry;
+        entry.setNo = card.setNo;
+        entry.name = card.name;
+        const std::string key = ygoSlotKey(card.setNo);
+        entry.owned = !key.empty() && ownedSlots.count(key) != 0;
+        out.push_back(std::move(entry));
+    }
+
+    std::sort(out.begin(), out.end(),
+              [](const YuGiOhChecklistEntry& a, const YuGiOhChecklistEntry& b) {
+                  if (a.setNo != b.setNo) return a.setNo < b.setNo;
+                  return a.name < b.name;
+              });
+    return out;
+}
+
+}  // namespace ccm

core/src/util/FsNames.cpp

@@ -18,7 +18,7 @@ struct Replacement {
     std::string_view to;
 };
 
-constexpr std::array<Replacement, 14> kReplacements{{
+constexpr std::array<Replacement, 16> kReplacements{{
     {"'",  ""},
     {"`",  ""},
     {",",  ""},
@@ -34,6 +34,8 @@ constexpr std::array<Replacement, 14> kReplacements{{
     {"\xC3\xBB", "u"},  // u-circumflex
     // Remaining accented vowels appear in modern Scryfall data but were not
     // listed in the Rust source. Keeping behavior 1:1 deliberately.
+    {"\xE2\x99\x82", "male"},    // ♂ male sign
+    {"\xE2\x99\x80", "female"},  // ♀ female sign
 }};
 
 void replaceAllInPlace(std::string& s, std::string_view from, std::string_view to) {

core/src/util/SetNoNatural.cpp

@@ -0,0 +1,69 @@
+#include "ccm/util/SetNoNatural.hpp"
+
+#include <cctype>
+
+namespace ccm {
+
+namespace {
+
+[[nodiscard]] bool isAsciiDigit(char c) noexcept {
+    return std::isdigit(static_cast<unsigned char>(c)) != 0;
+}
+
+[[nodiscard]] int cmpChar(char a, char b) noexcept {
+    const auto ua = static_cast<unsigned char>(a);
+    const auto ub = static_cast<unsigned char>(b);
+    if (ua < ub) return -1;
+    if (ua > ub) return 1;
+    return 0;
+}
+
+}  // namespace
+
+int compareSetNoNatural(std::string_view a, std::string_view b) noexcept {
+    std::size_t i = 0;
+    std::size_t j = 0;
+
+    while (i < a.size() && j < b.size()) {
+        const bool aDigit = isAsciiDigit(a[i]);
+        const bool bDigit = isAsciiDigit(b[j]);
+
+        if (aDigit && bDigit) {
+            std::size_t aEnd = i;
+            while (aEnd < a.size() && isAsciiDigit(a[aEnd])) ++aEnd;
+            std::size_t bEnd = j;
+            while (bEnd < b.size() && isAsciiDigit(b[bEnd])) ++bEnd;
+
+            std::size_t aSig = i;
+            while (aSig < aEnd && a[aSig] == '0') ++aSig;
+            std::size_t bSig = j;
+            while (bSig < bEnd && b[bSig] == '0') ++bSig;
+
+            const std::size_t aLen = aEnd - aSig;
+            const std::size_t bLen = bEnd - bSig;
+            if (aLen != bLen) return aLen < bLen ? -1 : 1;
+
+            for (std::size_t k = 0; k < aLen; ++k) {
+                const int c = cmpChar(a[aSig + k], b[bSig + k]);
+                if (c != 0) return c;
+            }
+
+            i = aEnd;
+            j = bEnd;
+            continue;
+        }
+
+        const int c = cmpChar(a[i], b[j]);
+        if (c != 0) return c;
+        ++i;
+        ++j;
+    }
+
+    if (i == a.size() && j == b.size()) {
+        if (a == b) return 0;
+        return a < b ? -1 : 1;
+    }
+    return i == a.size() ? -1 : 1;
+}
+
+}  // namespace ccm

docs/AGENTS.md

@@ -11,13 +11,13 @@ Long-form contributor documentation that lives outside the source tree.
 - `dow-doc-build-locally.md` — complete local build/setup reference for Windows and Linux, including dependency management and troubleshooting.
 - `intro-to-new-developers.md` — onboarding map for new contributors: architecture, folder responsibilities, guardrails, anti-patterns, and links to deeper docs.
 - `testing-and-test-code-of-conduct.md` — testing workflow plus expected standards for writing and maintaining deterministic, hermetic, behavior-focused tests.
-- `assets-and-info-apis.md` — reference for the external info APIs (set metadata) and asset APIs (card preview images) used by the Magic, Pokémon (West + Asia backends), Yu-Gi-Oh!, and Digimon Digi-Battle modules, plus the runtime flow through `SetService` / `CardPreviewService`, shared HTTP defaults (`CprHttpClient`, `Accept: */*`), per-game card-back fallbacks (URLs + bundled `ygo_card_back.png` / `digibattle99_card_back.png`), the Japanese Pokémon EN catalog asset (Asia region), and error-surface conventions. The Yu-Gi-Oh! **Info API** section also documents the local **set code** lookup used by the edit dialog (`YuGiOhSetLookup`, no extra HTTP).
+- `assets-and-info-apis.md` — reference for the external info APIs (set metadata) and asset APIs (card preview images) used by the Magic, Pokémon (West + Asia backends), Yu-Gi-Oh!, Yu-Gi-Oh! (Bandai), and Digimon Digi-Battle modules, plus the runtime flow through `SetService` / `CardPreviewService`, shared HTTP defaults (`CprHttpClient`, `Accept: */*`), per-game card-back fallbacks (URLs + bundled `ygo_card_back.png` / `digibattle99_card_back.png`), the Japanese Pokémon EN catalog asset (Asia region), and error-surface conventions. The Yu-Gi-Oh! **Info API** section also documents the local **set code** lookup used by the edit dialog (`YuGiOhSetLookup`, no extra HTTP).
 - `caching.md` — dedicated reference for preview-byte caching tiers (`CardPreviewService` LRU + `LocalPreviewByteCache`), cache keys and eviction, HTTP session reuse via `CprHttpClient`, and explicit non-goals (no error caching).
 - `README.md` — index page that clusters docs by area and links to all documents in this directory.
 
 ## Subdirectories
 
-- `assets/images/` — static screenshots and other binary assets referenced from the documentation (currently `demo-mtg.png`, `demo-pkm.png`, `demo-ygo.png`, `demo-digibattle99.png`). Keep filenames stable so cross-doc links don't break, and prefer compressed PNG/JPEG over uncompressed formats.
+- `assets/images/` — static screenshots and other binary assets referenced from the documentation (currently `demo-mtg.png`, `demo-pkm.png`, `demo-ygo.png`, `demo-ygo-bandai.png`, `demo-digibattle99.png`). Keep filenames stable so cross-doc links don't break, and prefer compressed PNG/JPEG over uncompressed formats.
 
 ## Conventions
 
@@ -28,7 +28,7 @@ Long-form contributor documentation that lives outside the source tree.
 ## Required follow-ups
 
 - After changing per-game seams in `core/` (e.g. `IGameModule`, `ISetSource`, `ICardPreviewSource`, `CollectionService`, `SetService`, `CardPreviewService`, `ImageService`) you **must** update `adding-a-new-game.md` to keep the canonical procedure in sync. The same applies to the UI seams (`IGameView`, `BaseCardListPanel`, `BaseCardEditDialog`, `BaseSelectedCardPanel`) and the composition-root wiring in `app/main.cpp`.
-- After changing any game's set/preview adapters (`MagicSetSource`, `MagicCardPreviewSource`, `PokemonSetSource`, `PokemonCardPreviewSource`, `YuGiOhSetSource`, `YuGiOhCardPreviewSource`, `DigiBattle99SetSource`, `DigiBattle99CardPreviewSource`) — endpoints, response parsing, name/number normalization, or the info-vs-asset split — you **must** update `assets-and-info-apis.md` so the API reference matches the live behavior.
+- After changing any game's set/preview adapters (`MagicSetSource`, `MagicCardPreviewSource`, `PokemonSetSource`, `PokemonCardPreviewSource`, `YuGiOhSetSource`, `YuGiOhCardPreviewSource`, `YuGiOhBandaiSetSource`, `YuGiOhBandaiCardPreviewSource`, `DigiBattle99SetSource`, `DigiBattle99CardPreviewSource`) — endpoints, response parsing, name/number normalization, or the info-vs-asset split — you **must** update `assets-and-info-apis.md` so the API reference matches the live behavior.
 - After bumping a key dependency (`nlohmann/json`, `cpr`, `wxWidgets`, `doctest`) in a way that changes a public API used in the guide's examples, update those examples.
 - After adding a new file under `docs/` (or a new entry under `docs/assets/images/`) you **must** add it to the file list above **and** to `README.md` so the index stays complete.
 - Do **not** rename, move, or split this file without first updating every other `AGENTS.md` that points at it (root, `core/`, `ui_wx/`, `app/`, `tests/`).

docs/adding-a-new-game.md

@@ -141,7 +141,7 @@ Mirror `core/include/ccm/games/pokemon/PokemonCardPreviewSource.hpp`. The header
 - `static std::string buildSearchUrl(std::string_view name, std::string_view setId, std::string_view setNo);`
 - `static Result<std::string> parseResponse(const std::string& body);`
 
-If your game benefits from edit-dialog metadata helpers (for example auto-detecting collector number / rarity), you can opt in to `ICardPreviewSource::detectFirstPrint(...)` and route it via `CardPreviewService::detectFirstPrint(...)`. If you need to enumerate multiple upstream printings (for example Yu-Gi-Oh! “Next” cycling between alternate `set_code` or `set_rarity` values), also override `ICardPreviewSource::detectPrintVariants(...)` and expose it through `CardPreviewService::detectPrintVariants(...)`. Keep both optional per game — default behavior should remain an explicit unsupported error.
+If your game benefits from edit-dialog metadata helpers (for example auto-detecting collector number / rarity), you can opt in to `ICardPreviewSource::detectFirstPrint(...)` and route it via `CardPreviewService::detectFirstPrint(...)`. If you need to enumerate multiple upstream printings (for example Yu-Gi-Oh! “Next” cycling between alternate `set_code` or `set_rarity` values), also override `ICardPreviewSource::detectPrintVariants(...)` and expose it through `CardPreviewService::detectPrintVariants(...)`. For bidirectional identify (set + name → setNo, or set + setNo → name), also override `detectBySetNo(...)` / `detectVariantsBySetNo(setId, setNo)` and wire them through `CardPreviewService`. In the edit dialog, bind Set # `wxEVT_TEXT` to `markSetNoLookupEdited()` and branch Auto detect with `shouldDetectBySetNo(...)` so the last typed field wins when both are filled (see existing Yu-Gi-Oh! / Pokémon / Digi-Battle / Bandai dialogs). `AutoDetectedPrint` carries `setNo` + `rarity` for every game; optional `name` / `setId` / `setName` / `language` fields stay empty when unused. Keep all of these optional per game — default behavior should remain an explicit unsupported error.
 
 Both `buildSearchUrl` and `parseResponse` are static and pure on purpose: every URL-encoding and JSON-shape rule is testable without HTTP. Common edge cases your tests must cover:
 
@@ -325,6 +325,7 @@ Derive from `BaseCardEditDialog<<Name>Card>`. Override:
 - `readExtraFromCard()` — copy fields from `constCard()` into your widgets.
 - `writeExtraToCard()` — copy values from your widgets back into `mutableCard()`.
 - `updateMenuName()` — return `"Update <Display>"`. This is what the dialog's "no sets cached" hint shows the user.
+- `validateExtraFields()` — optional; called from OK after name/set checks. Return `false` to block save (show your own themed dialog). Yu-Gi-Oh! (Bandai) requires a non-empty set number here.
 
 Optional `BaseCardEditDialog` extension points (defaults keep a single read-only set combo in the **Set** row):
 
@@ -360,12 +361,13 @@ Implement the virtuals:
 
 - `gameId()` returns `Game::<Name>`.
 - `displayName()` returns `"<Display>"`.
-- `listPanel(parent)` — lazily allocates the list panel as a child of `parent`; on first allocation, also `Bind(EVT_CARD_SELECTED, ...)` to push `listPanel_->selected()` into `selectedPanel_`, and `Bind(EVT_CARD_ACTIVATED, ...)` so a double-click (or Enter on the focused row) calls `onEditCard` with `wxGetTopLevelParent(listPanel_)` as the modal owner when available. **The binding must live here**, in the typed `IGameView`, not in `MainFrame` — `MainFrame` only sees `IGameView` and never `<Name>Card`.
+- `listPanel(parent)` — lazily allocates the list panel as a child of `parent`; on first allocation, also `Bind(EVT_CARD_SELECTED, ...)` to push `listPanel_->selected()` into `selectedPanel_`, and `Bind(EVT_CARD_ACTIVATED, ...)` so a double-click (or Enter on the focused row) calls `onEditCard` with `wxGetTopLevelParent(listPanel_)` as the modal owner when available. Activation is raised from `BaseCardListPanel` via `CallAfter` so Edit's `ShowModal` does not run inside the list notify path. **The binding must live here**, in the typed `IGameView`, not in `MainFrame` — `MainFrame` only sees `IGameView` and never `<Name>Card`.
 - `selectedPanel(parent)` — lazily allocates the selected panel.
-- `refreshCollection()` — calls `collection_.list(Game::<Name>)`, handles errors with `wxMessageBox`, and pushes the new vector into `listPanel_->setCards(...)`. Also re-syncs the selected panel.
-- `onAddCard(parent)`, `onEditCard(parent)`, `onDeleteCard(parent)` — open the typed `<Name>CardEditDialog` (or pop a confirm dialog for delete), call the typed `CollectionService` to commit, and refresh on success. For Add/Edit, follow the built-in game views: if `cardEditModalIsActive()` from `ccm/ui/CardEditModalGuard.hpp`, show a themed info dialog and return; otherwise wrap `ShowModal()` with `CardEditModalGuard` so a second Add/Edit cannot stack while one card dialog is already open.
+- `refreshCollection(selectId = nullopt)` — calls `collection_.list(Game::<Name>)`, handles errors with `wxMessageBox`, and pushes the new vector into `listPanel_->setCards(..., selectId)` (preserves the selected card by `id` when still present; when `selectId` is set — e.g. after Add — selects that card instead). Also re-syncs the selected panel.
+- `onAddCard(parent)`, `onEditCard(parent)`, `onDeleteCard(parent)` — open the typed `<Name>CardEditDialog` (or pop a confirm dialog for delete), call the typed `CollectionService` to commit, and refresh on success. After a successful Add, call `refreshCollection(added.value())` so the new card stays selected. For Add/Edit, follow the built-in game views: if `cardEditModalIsActive()` from `ccm/ui/CardEditModalGuard.hpp`, show a themed info dialog and return; otherwise wrap `ShowModal()` with `CardEditModalGuard` so a second Add/Edit cannot stack while one card dialog is already open.
 - `onUpdateSets(parent)` — calls `sets_.updateSets(Game::<Name>)`, refreshes `setsCache_`, returns a status string.
 - `setFilter(filter)` — forwards to `listPanel_->setFilter(filter)`.
+- `nudgeSelection(delta)` — forwards to `listPanel_->nudgeSelection(delta)` so Up/Down from the filter text box can move the table selection without stealing caret focus. Bind `wxEVT_KEY_DOWN` on the filter (MainFrame toolbar or in-game toolbar) for `WXK_UP` / `WXK_DOWN` accordingly.
 - `applyTheme(palette)` — forwards to both panels' `applyTheme`.
 - `updateSetsMenuLabel()` — returns `"Update <Display>"`. This is what the `Sets` menu entry shows.
 

docs/assets-and-info-apis.md

@@ -20,19 +20,39 @@ Used by `MagicCardPreviewSource` to find a card printing from `name` + `setId`,
 
 Unified **Pokemon** Game menu entry. Per-card `region` (`West` / `Asia`) selects the backend below. Collection: `pokemon/collection.json`. West sets: `pokemon/sets-west.json`. Asia sets: `pokemon/sets-asia.json`. Language choices: West → English/German/French/Spanish/Italian/Russian; Asia → Japanese/S-Chinese/T-Chinese/Korean.
 
-### West (`Game::Pokemon`, pokemontcg.io)
+### West (`Game::Pokemon`, TCGdex EN)
 
-**Info API:** `https://api.pokemontcg.io/v2/sets`  
-Used by `PokemonSetSource` to fetch all sets. The parser maps `id`, `name`, and `releaseDate` directly into `Set`, then sorts ascending by release date.
+Upstream: [TCGdex REST API](https://tcgdex.dev/) locale `en`. No API key. Canonical West set ids are TCGdex EN ids (e.g. `base1`, `sv01`, `swsh12.5tg`). Legacy pokemontcg.io ids (`sv1`, `pgo`, `swsh12tg`, …) are rewritten via `canonicalizeWestSetId` on West collection load, preview/auto-detect lookups, and set-completion matching so existing collections keep working; the next save persists TCGdex ids.
+
+**Info API:** `https://api.tcgdex.net/v2/en/sets`  
+Used by `PokemonSetSource` to fetch the slim set list (`id`, `name`). Release dates are not on the list endpoint — each set’s `GET /v2/en/sets/{id}` supplies `releaseDate` as `YYYY-MM-DD`, rewritten to `YYYY/MM/DD`, then the list is sorted ascending by release date.
+
+**Asset API:** `https://api.tcgdex.net/v2/en/cards/{setId}-{localId}` (by id), `https://api.tcgdex.net/v2/en/cards?…` (filtered search), and set-detail `cards[]` for auto-detect. Image CDN bases live on `assets.tcgdex.net`; the preview source appends `/high.png` (wxImage decodes PNG, not webp).
 
-**Asset API:** `https://api.pokemontcg.io/v2/cards?q=...`  
 Used by `PokemonCardPreviewSource` in two ways:
 
-1. **Preview lookup (`fetchImageUrl`).** Search by `name` plus optional `set.id` and collector number. The parser takes `data[0].images.large` first and falls back to `images.small` if needed.
+1. **Preview lookup (`fetchImageUrl`).** When both set id and collector number are present, prefers `GET /v2/en/cards/{setId}-{localId}` (card object with `image` base). On HTTP failure or missing image, falls back to a filtered search `set.id=eq:…&localId=eq:…` (collector numbers are unique within a set). When Set # or set id is missing, uses `name=eq:…` with optional `set.id` / `localId`. Legacy set ids are canonicalized before URL build.
 
-2. **Auto-detect print (`detectFirstPrint` / `detectPrintVariants`, Pokémon edit dialog).** Uses the same endpoint with `name:"<name>"` and `set.id:<setId>` only — **no** `number:` clause — plus `select=name,number,rarity,set` and `pageSize=50` so the response stays small. If the set-scoped HTTP request fails, it retries with **`name:` only** and still filters rows in `PokemonCardPreviewSource::parsePrintVariants(...)` by the picker’s **`set.id`** (not the display set name). The dialog passes `card.set.id` into `CardPreviewService::detectPrintVariants(...)` on a worker thread so the modal stays responsive. Each matching `data[]` row whose **card name matches exactly** (case-insensitive) and whose embedded `set.id` equals the chosen set maps to `AutoDetectedPrint::setNo` as the API `number` field only (for example `25`, not `25/185`). `AutoDetectedPrint::rarity` is filled from the card’s `rarity` field but the Pokémon edit dialog does not auto-sync holo or other flags from it. Distinct `(setNo, rarity)` pairs are deduped. When both an exact card name and `set.id` are supplied, an upstream miss returns an error instead of blending unrelated sets from a broader payload. The edit dialog offers **Auto detect** (fills Set # from the first variant), **Next** (cycles distinct `setNo` values when multiple exist), silent prefetch on **Edit** open, and clears cached variants when **Name** or **Set** changes. The Set # field and persisted `PokemonCard::setNo` keep only the printed-number portion; values such as `4/104` are trimmed to `4` on load and save.
+2. **Auto-detect print (`detectFirstPrint` / `detectPrintVariants`, Pokémon edit dialog).** Prefers `GET /v2/en/sets/{setId}` and filters `cards[]` by exact case-insensitive card name. Maps `localId` → `AutoDetectedPrint::setNo` and `rarity` → `AutoDetectedPrint::rarity` (the edit dialog does not auto-sync holo flags from rarity). If set detail fails, falls back to a filtered cards search and still restricts rows to the chosen set id when present. Distinct `(setNo, rarity)` pairs are deduped.
 
-The preview path normalizes collector numbers before request build. For example, `4/102` is reduced to `4` because the remote `number:` query expects only the printed-number component.
+3. **Reverse auto-detect (`detectVariantsBySetNo`, same Set # Auto detect button).** Requires a selected set. When **Name** is blank and **Set #** is filled, uses `GET /v2/en/cards/{setId}-{localId}` (then filtered search) to fill the card **name**. Returned `localId`s are post-filtered so a fuzzy hit cannot win on a shared digit prefix (`4` must not accept `14`). When Name is filled, behavior stays name → setNo as above. Set is always required for either direction.
+
+The edit dialog offers **Auto detect**, **Next**, silent prefetch on **Edit** open, and clears cached variants when **Name** or **Set** changes. The Set # field and persisted `PokemonCard::setNo` keep only the printed-number portion; values such as `4/104` are trimmed to `4` on load and save.
+
+The preview path normalizes collector numbers before request build. For example, `4/102` is reduced to `4` because the remote `localId` path expects only the printed-number component.
+
+### Set-completion catalog (West)
+
+**Sets → Update Pokemon** uses `PokemonSetSource::fetchAllWithCatalog()` so the West path writes:
+
+1. The set list (`pokemon/sets-west.json`) from `/v2/en/sets` + per-set detail dates
+2. A pack checklist at `<dataStorage>/pokemon/set-catalog-west.json` from each set’s detail `cards[]` (`localId` → `setNo`, `name` → name)
+
+Each catalog pack stores `id` (TCGdex EN set id), `name` (display), and `cards[]` of `{ setNo, name }` keyed by `localId` (normalized by stripping anything after `/`). Duplicate collector numbers within a pack collapse to one checklist row. The Pokemon **Set Completion** tab reads this file offline; ownership for a West pack requires `PokemonRegion::West`, a canonicalized `card.set.id` match, and a normalized collector number match. Amount / holo / 1st Edition are ignored for completion counts.
+
+After a successful Update, `PokemonGameView` also runs `syncPokemonCollectionSets` against the refreshed set lists: West cards get legacy set-id migration plus `set.name` / `releaseDate` refresh when the id is present; Asia cards refresh name/date the same way. Changed cards are persisted via `CollectionService::saveAll`.
+
+If `set-catalog-west.json` is missing (and the active region filter is West or All with no Asia catalog either), the Set Completion tab prompts the user to run Update Pokemon.
 
 ## Yu-Gi-Oh! APIs (Yugipedia + YGOPRODeck)
 
@@ -80,8 +100,52 @@ Used in two situations:
 
 2. **Auto-detect print (`detectFirstPrint` / `detectPrintVariants`, Yu-Gi-Oh! edit dialog).** Uses `fname=` plus **`cardset=`** set to the **display set name** from the picker (must match `card_sets[].set_name` in the payload). If that request fails (for example unknown set label), it retries with **`fname=` only** and still filters prints by preferred `set_name`. `YuGiOhCardPreviewSource::parsePrintVariants(...)` walks every `(set_code, set_rarity)` pair for rows whose **card name matches exactly** (case-insensitive) so the dialog can offer ring-buffer **Next** controls: one cycles distinct `set_code` values for that name+set (and resets rarity to the first upstream rarity for the newly selected code); another cycles distinct `set_rarity` values for the **current** `set_code` without changing the collector number. Shared HTTP and parsing rules live beside `parseFirstPrint`. When the dialog passes both an exact card name and a display `set_name`, an upstream miss on that label returns an error instead of falling back to unfiltered `card_sets[]` rows — otherwise unrelated products (same card name, different `set_name` on each printing) could be blended into one bogus variant list. The Yu-Gi-Oh! edit dialog additionally drops European alternate `set_code` rows that use the `-E###` pattern (single `E` before digits, e.g. `LOB-E003`) when the card language is **English**, because YGOPRODeck keeps those alongside NA numbering (`LOB-005`) under the same English `set_name`; it also collapses `LOB-005`-style and `LOB-EN005`-style codes to one **Next** slot via digit-tail matching (`ccm/util/YuGiOhPrintingSlot.hpp`). No image data is needed for this path, so Yugipedia is not consulted.
 
+3. **Reverse auto-detect (`detectVariantsBySetNo`).** When **Name** is blank and **Set #** is filled, the Set # Auto detect button looks up the offline `yugioh/set-catalog.json` checklist (same file as Set Completion) by `Set.id` + collector digits / full code, and fills the card **name** (and **rarity** when present on the catalog row or when YGOPRODeck `cardset=` enrichment succeeds). Digit matching strips leading zeros but is not a prefix match (`5` ↔ `LOB-005`, `1` does not match `LOB-011`). Name→Set # Auto detect also applies the matched print’s rarity. When **both** Name and Set # are filled, the field last typed by the user is the lookup key (so editing Set # after a name detect and clicking Auto detect again resolves by set number, not by re-running the name path). Requires a prior **Sets → Update Yu-Gi-Oh!** so the catalog exists (re-run Update to refresh rarities on older catalogs). Set is always required for both directions.
+
 YGOPRODeck publishes rate limits and asks clients to cache responses and avoid abusive hotlinking; treat failures after burst traffic as an upstream policy signal, not an app bug. Yugipedia’s MediaWiki API is similarly polite — one batched call per preview lookup keeps us well under any normal threshold.
 
+### Set-completion catalog (`cardinfo.php` all-cards dump)
+
+**Sets → Update Yu-Gi-Oh!** uses `YuGiOhSetSource::fetchAllWithCatalog()` so two HTTP responses write:
+
+1. The set list (`yugioh/sets.json`) from `cardsets.php` (same as before, including local 25th Anniversary aliases)
+2. A pack checklist at `<dataStorage>/yugioh/set-catalog.json` from the unfiltered `cardinfo.php` dump
+
+Each catalog pack stores `id` (YGOPRODeck product `set_code` / `Set.id`, e.g. `LOB`), `name` (display `set_name`), and `cards[]` of `{ setNo, name, rarity? }` drawn from each card’s `card_sets[]` (`set_rarity` when present). European `-E###` alternate codes are dropped; `LOB-005` / `LOB-EN005`-style equivalents collapse to one checklist row (preferring an `EN`-embedded code when present). The Yu-Gi-Oh! **Set Completion** tab reads this file offline; ownership for a pack requires matching `card.set.id` plus a printing-slot match (`ygoPrintingSlotsMatch` — same abbrev + digit run). Rarity and 1st Edition are ignored for completion counts.
+
+If `set-catalog.json` is missing, the Set Completion tab prompts the user to run Update Yu-Gi-Oh!.
+
+## Yu-Gi-Oh! (Bandai) APIs (Yugipedia)
+
+Bandai Carddass (pre-Konami) is wired as `Game::YuGiOhBandai` (`dirName` `yugiohbandai`, UI label **Yu-Gi-Oh! (Bandai)**). There is no dedicated Bandai REST API; everything goes through Yugipedia MediaWiki + Semantic MediaWiki.
+
+### Info API (sets + catalog)
+
+`YuGiOhBandaiSetSource` keeps an **app-owned set manifest** (stable ids, no fragile category scrape):
+
+| id | Name | Numbers |
+|---|---|---|
+| `ban1` | 1st Generation | 1–42 |
+| `ban2` | 2nd Generation | 43–88 |
+| `ban3` | 3rd Generation | 89–118 |
+| `banpromo-j` | Jump Promos | J1–J3 |
+| `banpromo-ta` | Toei Promos | TA1–TA2 |
+| `bansealdass` | Sealdass | 1–42 |
+
+`fetchAll()` returns that manifest (offline — no HTTP). `fetchAllWithCatalog()` additionally `GET`s each set’s Yugipedia gallery page via `action=parse&prop=wikitext` and parses lines like `… | {{pound}}014 ([[R]]) {{Gallery card names|Dark Magician (Bandai)|…}}` into checklist entries `{setNo, name, rarity}` (rarity codes `C`/`R`/`SR` → Common/Rare/Super Rare). The shared promo gallery is split by `setNo` prefix (`J*` vs `TA*`). Persisted at `yugiohbandai/set-catalog.json`.
+
+**Set Completion** ownership keys on `(set.id, normalized setNo)`. Because `fetchAll()` is offline, Add/Edit can work before any catalog download; the catalog is filled on the first visit to the Set Completion tab (or via **Sets → Update Yu-Gi-Oh! (Bandai)**). Cards without a set number do not count toward progress.
+
+English Blue-Eyes is **not** a separate set — it is `ban3` card `#118` with language English.
+
+### Asset API (preview + auto-detect)
+
+1. **Preview:** `pageimages` on preferred titles `Name (Bandai)` / `Name (English Bandai)` / `Name (Bandai Sealdass)`, falling back to SMW `ask` by English name then `pageimages` on the best hit.
+2. **Auto-detect by name:** SMW `ask` `[[Category:Bandai cards]][[English name::…]]` → fills `name`, `setId`/`setName`, `setNo`, `rarity`, `language`. Requires a selected set.
+3. **Auto-detect by number:** SMW `ask` `[[Bandai number::…]]` (or promo gallery parse for `J*`/`TA*` codes) → same fields, then **filtered to the selected set**. Ask results are also dropped when the returned Bandai number does not match the requested one after normalization (`1` must not accept `11`). The Set # Auto detect button is bidirectional: blank name + number fills name; name filled fills number/rarity. Set is always required.
+
+Card-back fallback URL: `https://ms.yugipedia.com//3/34/Back-BAN-JP-1999.png`.
+
 ## Digimon Digi-Battle (1999) APIs (digimoncard.io)
 
 English Digi-Battle is wired as `Game::DigiBattle99` (`dirName` `digibattle99`, UI label **Digimon (Digi-Battle)**). Upstream docs: [digimoncard.io Public API](https://digimoncard.io/api-documentation). Always scope requests with `series=Digimon Digi-Battle Card Game` so modern Digimon Card Game rows are never mixed in. Rate limit: **15 requests / 10 seconds / IP** (429 then temporary block on abuse).
@@ -100,6 +164,19 @@ and collects unique `set_name[]` pack strings. Each pack becomes a `Set` with:
 
 Unknown future packs get an empty release date and sort last.
 
+Cached on disk as `<dataStorage>/digibattle99/sets.json` via `SetService` / `JsonSetRepository`.
+
+### Set-completion catalog (same `search.php` payload)
+
+**Sets → Update Digimon (Digi-Battle)** uses `DigiBattle99SetSource::fetchAllWithCatalog()` so one HTTP response writes both:
+
+1. The set list (`sets.json`) as above
+2. A pack checklist at `<dataStorage>/digibattle99/set-catalog.json`
+
+Each catalog pack stores `id` (slug), `name` (display), and `cards[]` of `{ setNo, name }` (API `id` normalized like preview — alphabetic prefix uppercased). A card listed in multiple `set_name[]` packs appears under **each** pack. The Digimon **Set Completion** tab reads this file offline (no live HTTP while browsing); ownership for a pack requires matching `card.set.id` plus normalized `setNo`.
+
+If `set-catalog.json` is missing, the Set Completion tab prompts the user to run Update Digimon (Digi-Battle).
+
 ### Asset API: CDN images + `search.php` lookup
 
 Card scans live at:
@@ -117,11 +194,13 @@ where `{id}` is the API card number (`ST-01`, `BO-115`, `MO-06`). The CDN also s
 
 **Auto-detect** (`detectPrintVariants`): same search; distinct `id` values become `AutoDetectedPrint::setNo`. Digi-Battle UI is Pokémon-like (no persisted rarity).
 
+**Reverse auto-detect** (`detectVariantsBySetNo`): when Name is blank and Set # is filled, search with `card=` + `pack=` fills `AutoDetectedPrint::name` (and normalizes `setNo`). Hits are post-filtered so digits-only input matches the numeric suffix with leading zeros ignored (`1` ↔ `ST-01`, not `ST-11`). Set (pack display name) is always required for either direction.
+
 Empty search array / `{"error":"..."}` → `NotFound`; bad JSON / HTTP → `Transient`.
 
 ## Japanese Pokémon TCG APIs (TCGdex `ja`) — Asia region backend
 
-Asia Pokémon is routed internally as `Game::JapanesePokemon` (`dirName` `pokemon`, same data directory as West). It is **not** a separate Game menu entry: the unified **Pokemon** UI stores both West and Asia cards in `pokemon/collection.json` with a per-card `region` (`West` / `Asia`). Set caches are split by filename under that directory (`pokemon/sets-west.json` vs `pokemon/sets-asia.json`). `JsonSetRepository` migrate-on-load promotes legacy `pokemon/sets.json` → `sets-west.json` and `pokemonjp/sets.json` → `sets-asia.json` when the new files are missing. **Sets > Update Pokemon** refreshes both lists. Upstream: [TCGdex REST API](https://tcgdex.dev/). No API key. Japanese set IDs (e.g. `PMCG1`, `SV1a`) are never merged into Western pokemontcg.io ids.
+Asia Pokémon is routed internally as `Game::JapanesePokemon` (`dirName` `pokemon`, same data directory as West). It is **not** a separate Game menu entry: the unified **Pokemon** UI stores both West and Asia cards in `pokemon/collection.json` with a per-card `region` (`West` / `Asia`). Set caches are split by filename under that directory (`pokemon/sets-west.json` vs `pokemon/sets-asia.json`). `JsonSetRepository` migrate-on-load promotes legacy `pokemon/sets.json` → `sets-west.json` and `pokemonjp/sets.json` → `sets-asia.json` when the new files are missing. **Sets > Update Pokemon** refreshes both lists. Upstream: [TCGdex REST API](https://tcgdex.dev/). No API key. Japanese set IDs (e.g. `PMCG1`, `SV1a`) are never merged into Western TCGdex EN ids.
 
 ### Info API: TCGdex `GET /v2/ja/sets` (+ per-set detail)
 
@@ -146,6 +225,19 @@ Asia Pokémon is routed internally as `Game::JapanesePokemon` (`dirName` `pokemo
 
 Seed data lives in `tools/pokemon_jp/classic_missing_sets.json` + `classic_missing_prints.json` (merged into the EN catalog via `merge_classic_missing.py`). LocalIds for these products are sequential `001`… within each product (cards were unnumbered in print). Refresh `UnnumberedPromo` prints from Bulbapedia with `python tools/pokemon_jp/harvest_unnumbered_promos.py`, then fill preview images with `python tools/pokemon_jp/enrich_unnumbered_promo_images.py` (prefers Unnumbered / Japanese reprint-gallery scans over English Wizards `|image=` primaries; EN-only Bulbapedia pages leave `image_url` empty), then re-run `merge_classic_missing.py`. Numbered Japanese promo eras (`SV-P`, `S-P`, …) remain out of scope — TCGdex does not expose them, and they are not part of this curated set.
 
+### Set-completion catalog (Asia)
+
+**Sets → Update Pokemon** uses `JapanesePokemonSetSource::fetchAllWithCatalog()` so the Asia path writes:
+
+1. The set list (`pokemon/sets-asia.json`) as above (EN names + classic product injection)
+2. A pack checklist at `<dataStorage>/pokemon/set-catalog-asia.json`
+
+For each set, the source `GET`s `/v2/ja/sets/{id}` and builds checklist rows from `cards[]` (`localId` → `setNo`, display name prefers EN catalog `nameEn`, else TCGdex Japanese `name`). Prints present in the bundled EN catalog but missing from TCGdex `cards[]` are **gap-filled** into the pack (covers UnnumberedPromo / City Gym / Expansion Sheets / Southern Islands and sparse classic sets). Catalog-only products with no TCGdex detail become packs entirely from `JapanesePokemonEnCatalog::printsForSet`.
+
+The Pokemon **Set Completion** tab also loads this file offline; ownership for an Asia pack requires `PokemonRegion::Asia`, matching `card.set.id`, and `normalizeLocalId` on `setNo`. Region and language filters on the tab restrict which packs/cards count. West and Asia never cross-count.
+
+If `set-catalog-asia.json` is missing (and the active region filter needs it), the Set Completion tab prompts the user to run Update Pokemon.
+
 ### Sets without printed collector numbers (`UnnumberedPromo`)
 
 Physically unnumbered Japanese promos (and the other classic catalog-only products above) have **no printed set number**. The app still stores a synthetic `setNo` / catalog `local_id` (`001`, `002`, …) so preview and collection JSON stay keyed by `(setId, localId)` — but that value must not be treated as something the user can read off the card.
@@ -178,6 +270,8 @@ It does **not** substitute another printing of the same Pokémon when both TCGde
 
 Auto-detect / Next uses the same set-detail `cards[]`, matching the typed name against catalog English names or TCGdex Japanese names. Catalog EN aliases are applied only when the catalog `name_ja` agrees with the TCGdex row (stale seed mappings like Charmander→`001` are ignored).
 
+Reverse auto-detect (`detectVariantsBySetNo`) uses `GET /v2/ja/cards/{setId}-{localId}` (preferring catalog `nameEn` when present) or a catalog scan with leading-zero-insensitive `localId` matching (`1` ↔ `001`, not `011`) for catalog-only sets, filling Name when Set # is known and Name is blank. Set is always required.
+
 Pokémon English aliases in the catalog come from National Dex → species table (`dexId`) for ordinary Pokémon. When `name_ja` carries a known owner / Rocket's / Dark / Light / Shining prefix, `enrich_preview_images.py` composes the **full English product title** (e.g. `エリカのナゾノクサ` → `Erika's Oddish`, `わるいリザードン` → `Dark Charizard`, `R団のサンダー` → `Rocket's Zapdos`, neo garbled `輝くセレビ` → `Shining Celebi`). Those rows use `name_en_source: "species-table-variant"`. Trainer/Energy English aliases come from the offline JA→EN map `tools/pokemon_jp/non_pokemon_en_by_ja.json` (e.g. Switch ← `ポケモンいれかえ`).
 
 That trainer/energy map is maintained to cover **at least the first 15 chronological main Japanese expansions** present in TCGdex (PMCG1–PMCG6, neo1–neo4, VS1, web1, E1–E3). The same JA→EN entry also applies to later reprints that reuse the Japanese name.
@@ -246,7 +340,7 @@ Three mechanisms reduce preview latency for **all** games (Magic, Pokemon West/A
 
 - **In-memory preview LRU** (`CardPreviewService`). Successful `fetchPreviewBytes` results are cached keyed by `(game, name, setId, setNo)`; successful `fetchImageBytesByUrl` results are cached keyed by URL (used for the per-game card-back fallback). Re-selecting a previously viewed row is decode-only — no HTTP at all. The cache is bounded by `CardPreviewService::kCacheCapacity` (currently 128 entries) and uses a list+map LRU under a mutex (the preview pipeline is invoked from a worker thread in `BaseSelectedCardPanel`). **Source errors are split** by `PreviewLookupError::Kind`: `NotFound` (the upstream answered cleanly that the record has no image) is *negative-cached* in this tier so subsequent selections short-circuit without HTTP, while `Transient` (HTTP/network/parse failures) is **never** cached so a brief outage cannot permanently disable a card's preview.
 - **Persistent disk byte cache** (`LocalPreviewByteCache`, port `IPreviewByteCache`). Wraps the in-memory tier with an on-disk store under `<exeDir>/.cache/preview-cache/` — pinned **next to the executable**, in the same scope as `config.json`, **not** under the user-configurable `Configuration.dataStorage` path. The cache stays put when the user reconfigures or relocates their collection data, and it is not part of the user's data directory backups; it is install-scoped, not collection-scoped. Both positive previews and `NotFound` verdicts survive an app restart. Each entry is a mutually-exclusive `<hash>.bin` (positive payload) or `<hash>.neg` (negative marker) plus a `<hash>.idx` sidecar containing the original key — load-time mismatch on the sidecar treats the entry as a miss, so a hash collision degrades to a one-time HTTP refetch instead of serving the wrong card's bytes (or the wrong card's "no image" verdict). Hashing is FNV-1a 64-bit (no crypto dependency). The cache is bounded by total `.bin` payload bytes (default `kDefaultMaxBytes = 64 MiB`) and evicts oldest entries by mtime when a new write would exceed the cap; reading an entry touches its mtime so frequently-viewed cards survive eviction. Negative `.neg` markers are tiny and not counted against the cap — their count is naturally bounded by the user's actively-viewed records. Filesystem mutations route through `IFileSystem`; size and mtime queries (which the port does not expose) use `std::filesystem` directly inside the adapter. The persistent tier is **fire-and-forget on the way down** — every adapter operation swallows I/O errors so a flaky or full disk never breaks the preview path.
-- **Persistent HTTP session** (`CprHttpClient`). The adapter owns one long-lived `cpr::Session` (libcurl easy handle) for the lifetime of the app. Per-request configuration is limited to `SetUrl(...)`; headers, timeout, and redirect policy are configured once in the constructor. Default **`Accept: */*`** keeps JSON responses and raw image bodies working on the same session (avoid tying every GET to `application/json`). libcurl's connection pool keeps the TLS connection to each host warm, so repeat calls to `api.scryfall.com`, `api.pokemontcg.io`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, and `images.digimoncard.io` skip the TLS handshake. A `std::mutex` serializes callers — libcurl easy handles are not thread-safe, and the preview pipeline is single-flight per panel anyway.
+- **Persistent HTTP session** (`CprHttpClient`). The adapter owns one long-lived `cpr::Session` (libcurl easy handle) for the lifetime of the app. Per-request configuration is limited to `SetUrl(...)`; headers, timeout, and redirect policy are configured once in the constructor. Default **`Accept: */*`** keeps JSON responses and raw image bodies working on the same session (avoid tying every GET to `application/json`). libcurl's connection pool keeps the TLS connection to each host warm, so repeat calls to `api.scryfall.com`, `api.tcgdex.net`, `assets.tcgdex.net`, `db.ygoprodeck.com`, `yugipedia.com`, `ms.yugipedia.com`, `digimoncard.io`, and `images.digimoncard.io` skip the TLS handshake. A `std::mutex` serializes callers — libcurl easy handles are not thread-safe, and the preview pipeline is single-flight per panel anyway.
 
 `CardPreviewService` consults the tiers in order **memory → disk → source/HTTP**. On a disk hit (positive *or* negative) the entry is promoted into the in-memory LRU so the next click on the same row never re-touches the disk cache. On HTTP success the bytes are written through to both tiers in one shot. On a `NotFound` source error the **negative** marker is written through to both tiers; on `Transient` source errors nothing is written, so the next selection retries cleanly.
 
@@ -262,6 +356,7 @@ Fallback card-back sources (`BaseSelectedCardPanel`; Magic/Pokémon URLs match C
 - Pokémon: `https://archives.bulbagarden.net/media/upload/1/17/Cardback.jpg`
 - Japanese Pokémon: `https://archives.bulbagarden.net/media/upload/2/2a/TCG_Card_Back_Japanese.jpg`
 - Yu-Gi-Oh!: Yugipedia English TCG back — try `https://ms.yugipedia.com/thumb/e/e5/Back-EN.png/250px-Back-EN.png`, then `https://ms.yugipedia.com/e/e5/Back-EN.png`; if both fail, load `<exeDir>/assets/ygo_card_back.png` (shipped from `ui_wx/assets/ygo_card_back.png` at link time). `fallbackImageUrlForGame(Game::YuGiOh)` returns the thumbnail URL for helpers that only consult a single string.
+- Yu-Gi-Oh! (Bandai): `https://ms.yugipedia.com//3/34/Back-BAN-JP-1999.png`.
 - Digimon (Digi-Battle): no stable public back URL; load `<exeDir>/assets/digibattle99_card_back.png` (shipped from `ui_wx/assets/digibattle99_card_back.png` at link time).
 
 If a game module does not provide a preview source (`cardPreviewSource() == nullptr`), preview registration is skipped and the UI behaves as "no remote preview API available."
@@ -273,6 +368,6 @@ All source types return `Result<T, std::string>` errors so failures cross bounda
 - info API failures (bad set payload, schema mismatch, endpoint/network failure), and
 - asset API failures (query mismatch, no matching card, missing image fields, image download failure).
 
-When previews fail, verify request construction first (name sanitization, number normalization, percent encoding), then verify response shape assumptions: Scryfall (`data`, `image_uris`), Pokemon (`data`, `images.large`/`images.small`; auto-detect also needs `name`, `number`, `rarity`, and `set.id` on each matching row), Yu-Gi-Oh! Yugipedia (`query.pages.<id>.imageinfo[0].url` per filename, missing files tagged `"missing": ""`), Yu-Gi-Oh! YGOPRODeck fallback (`data`, `name`, `card_images`), Digi-Battle digimoncard.io (top-level array with `name`/`id`/`set_name`; CDN `images.digimoncard.io/images/cards/{id}.jpg`), Japanese Pokémon TCGdex (`image` base + `/high.png`; set-detail `cards[]` with `localId`). If the UI fallback path succeeds (network card-back and/or bundled PNG), the panel shows the card-back image and the inline label `(image preview unavailable)`; only if every fallback fails does the preview stay empty with status text.
+When previews fail, verify request construction first (name sanitization, number normalization, percent encoding), then verify response shape assumptions: Scryfall (`data`, `image_uris`), Pokemon West (`GET /v2/cards/{setId}-{number}` → `data` object, or search `data[]`; `images.large`/`images.small`; auto-detect also needs `name`, `number`, `rarity`, and `set.id` on each matching row), Yu-Gi-Oh! Yugipedia (`query.pages.<id>.imageinfo[0].url` per filename, missing files tagged `"missing": ""`), Yu-Gi-Oh! YGOPRODeck fallback (`data`, `name`, `card_images`), Digi-Battle digimoncard.io (top-level array with `name`/`id`/`set_name`; CDN `images.digimoncard.io/images/cards/{id}.jpg`), Japanese Pokémon TCGdex (`image` base + `/high.png`; set-detail `cards[]` with `localId`). If the UI fallback path succeeds (network card-back and/or bundled PNG), the panel shows the card-back image and the inline label `(image preview unavailable)`; only if every fallback fails does the preview stay empty with status text.
 
 For Yu-Gi-Oh! specifically, when a printing shows the wrong art compared with Yugipedia’s gallery, debug in this order: (1) verify the candidate list via `YuGiOhCardPreviewSource::buildCandidateFilenames(...)` against the actual file names on Yugipedia’s `Card_Gallery:<Card>` page; (2) confirm the dialog rarity name maps to the expected short code in `ygoRarityShortCode(...)` / `rarityCodeFor(...)` (extend the mapping when a new rarity surfaces); (3) confirm the `firstEdition` flag matches the printed edition stamp — the candidate ordering puts the printed edition first.

tests/AGENTS.md

@@ -19,11 +19,16 @@
 - `card_preview_service_tests.cpp` — `CardPreviewService` registry/orchestration through `registerModule(IGameModule&)` with an inline `FakeGameModule` returning a `FakeSource : ICardPreviewSource` (which carries a `PreviewLookupError::Kind` knob so tests can drive both transient and not-found paths) and a `FixedHttpClient`. Both fakes count `calls` so cache-hit assertions are precise. Pin-downs include: "module returning nullptr is silently skipped", the per-game `detectFirstPrint` / `detectPrintVariants` opt-in guards, and the LRU bytes cache (repeat `fetchPreviewBytes` for the same `(game, name, setId, setNo)` returns the cached payload without touching the source or HTTP; different cards get separate cache slots; transient errors are **not** cached so a flaky connection recovers; `fetchImageBytesByUrl` is keyed by URL and serves the per-game card-back fallback from the same LRU). Production `fetchAndCache` rejects empty HTTP bodies (not exercised by these fakes unless a test sets an empty `body` deliberately). The negative-cache behavior is also pinned down: a `NotFound` source error writes through to the persistent cache *and* short-circuits the next lookup (source not re-invoked); editing a lookup-relevant field invalidates the negative entry automatically; warm-restart (a fresh service over the same cache fake) honors a previously stored negative entry; and a later positive result for the same key replaces the negative entry. The persistent-tier wiring uses an inline `InMemoryByteCache : IPreviewByteCache` fake whose `Entry { negative, payload }` carries the kind explicitly.
 - `local_preview_byte_cache_tests.cpp` — `LocalPreviewByteCache` adapter against `StdFileSystem` (real disk under a unique `temp_directory_path()/ccm_preview_cache_test_*` per case, RAII `TempDir` cleanup; see also `std_file_system_tests.cpp`). Pin-downs: store/load round-trips bytes verbatim; missing key is a clean miss; empty payload is silently skipped; sidecar mismatch (faked hash collision) is treated as a miss so we never serve the wrong card's bytes (or wrong card's negative verdict); the cache survives an adapter restart over the same directory; total-size eviction drops the oldest `.bin` by mtime when a `store` would exceed the cap; a `load` touches the entry's mtime so frequently-viewed cards survive eviction. Negative-entry coverage: `storeNegative` round-trips as `NegativeHit` (not a miss, not a payload, and not counted against the byte cap); negatives survive an adapter restart; a later positive `store` overwrites a previous negative and a later `storeNegative` overwrites a previous positive (releasing its bytes from the cap); and the sidecar collision check applies to negative entries too.
 - `std_file_system_tests.cpp` — `StdFileSystem` directly (`exists`, `isDirectory`, `ensureDirectory`, `readText`, `writeText`, `copyFile`, `remove`, `listDirectory`) under a unique `temp_directory_path()/ccm_std_fs_test_*` directory per case; scope matches the real-disk exception documented for preview-cache tests.
-- `pokemon_set_source_tests.cpp` — `PokemonSetSource::parseResponse` (api.pokemontcg.io/v2/sets shape — `data[].id`, `name`, `releaseDate` already in `YYYY/MM/DD`) + sort-by-release-date stability. Drives `fetchAll` via `FixedHttpClient` and asserts the public endpoint URL.
-- `pokemon_card_preview_source_tests.cpp` — `PokemonCardPreviewSource::buildSearchUrl` (percent-encoded `name:` / `set.id:` / `number:` triple, with collector-number `4/102` -> `4` normalization) + `parseResponse` (`data[0].images.large` with `images.small` fallback). Drives `fetchImageUrl` via `FixedHttpClient`.
-- `digibattle99_set_source_tests.cpp` — `DigiBattle99SetSource::parseResponse` derives unique packs from digimoncard.io search arrays, slugifies `Set.id`, applies curated release dates, and sorts chronologically. Drives `fetchAll` via `FixedHttpClient`.
+- `pokemon_west_set_id_tests.cpp` — `canonicalizeWestSetId` identity + legacy pokemontcg → TCGdex EN mappings (`sv1`→`sv01`, `pgo`→`swsh10.5`, …) and unknown passthrough.
+- `pokemon_collection_set_sync_tests.cpp` — `syncPokemonCollectionSets` West id migration + name/date refresh; Asia metadata-only refresh.
+- `pokemon_set_source_tests.cpp` — `PokemonSetSource::parseListResponse` (TCGdex EN `/v2/en/sets` top-level array) + `parseReleaseDate` / `parseCatalogPackFromSetDetail`. Drives `fetchAll` / `fetchAllWithCatalog` via routing HTTP fakes and asserts EN endpoints.
+- `pokemon_card_preview_source_tests.cpp` — `PokemonCardPreviewSource::buildSearchUrl` / `buildCardByIdUrl` (canonicalization + `localId` filters), `parseSearchResponse` / `parseCardByIdResponse` (`image` + `/high.png`), and `fetchImageUrl` / auto-detect via `FixedHttpClient`.
+- `digibattle99_set_source_tests.cpp` — `DigiBattle99SetSource::parseResponse` derives unique packs from digimoncard.io search arrays, slugifies `Set.id`, applies curated release dates, and sorts chronologically. `parseCatalog` / `fetchAllWithCatalog` pin the set-completion checklist (multi-pack membership, setNo dedupe). Drives `fetchAll` via `FixedHttpClient`.
+- `digibattle99_set_completion_tests.cpp` — `computeDigiBattle99SetCompletion` / `digiBattle99ChecklistForSet` ownership rules + `DigiBattle99SetCatalogService` round-trip against `InMemoryFileSystem`.
+- `yugioh_set_completion_tests.cpp` — `computeYuGiOhSetCompletion` / `yuGiOhChecklistForSet` ownership rules (printing-slot match) + `YuGiOhSetCatalogService` round-trip against `InMemoryFileSystem`.
+- `pokemon_set_completion_tests.cpp` — `computePokemonSetCompletion` / `pokemonChecklistForSet` West/Asia ownership isolation + region/language filters + `PokemonSetCatalogService` dual-path FS round-trip.
 - `digibattle99_card_preview_source_tests.cpp` — CDN image URL from `setNo`, search URL encoding (`series`/`n`/`pack`/`card`), `parseImageUrlFromSearch` NotFound vs Transient, and auto-detect print variants. Drives `fetchImageUrl` / `detectPrintVariants` via `FixedHttpClient`.
-- `yugioh_set_source_tests.cpp` — `YuGiOhSetSource::parseResponse` for YGOPRODeck `cardsets.php` (`set_code`, `set_name`, `tcg_date`) including `YYYY-MM-DD` -> `YYYY/MM/DD` rewrite and chronological sort checks.
+- `yugioh_set_source_tests.cpp` — `YuGiOhSetSource::parseResponse` for YGOPRODeck `cardsets.php` (`set_code`, `set_name`, `tcg_date`) including `YYYY-MM-DD` -> `YYYY/MM/DD` rewrite and chronological sort checks. Also `parseCatalog` / `fetchAllWithCatalog` for the set-completion checklist from `cardinfo.php`.
 - `yugioh_set_lookup_tests.cpp` — `lookupYuGiOhSetByShorthand` / helpers in `ccm/util/YuGiOhSetLookup.hpp` (trim, ASCII case-fold, exact `Set.id` match, not-found vs ambiguous).
 - `game_module_tests.cpp` — smoke tests that each concrete `IGameModule` (Magic / Pokemon / Yu-Gi-Oh / DigiBattle99) reports stable `id()`, `dirName()`, `displayName()`, and a non-null `cardPreviewSource()` when constructed with a noop `IHttpClient`.
 - `yugioh_card_preview_source_tests.cpp` — `YuGiOhCardPreviewSource` Yugipedia + YGOPRODeck unit coverage. Helper-level tests pin down `normalizeName` (whitespace + Yugipedia-policy punctuation stripping), `ygoRarityShortCode` + `rarityCodeFor` (CCM3 dialog rarity names → canonical short codes used by both the YGO overview table and Yugipedia filename generation; unknown rarity falls through), `extractSetCode` (`LOB-005` / `LOB-DE005` → `LOB`), `buildCandidateFilenames` (printed-edition first, EN/NA/EU/AU + png/jpg, rarity-less fallback round, empty list when slug or set code is missing), `buildYugipediaQueryUrl` (single `titles=File:A|File:B` batch, percent-encoded), and `parseYugipediaResponse` (returns the URL of the highest-priority filename that resolved, errors when every candidate is `missing`). End-to-end `fetchImageUrl` cases use a `RoutingHttpClient` to verify Yugipedia is queried first and the per-printing scan is returned when found, that empty/error Yugipedia responses fall through to the YGOPRODeck `card_images[0]` fallback, that the YGOPRODeck error is propagated when both upstreams fail, and that an empty `setNo` skips Yugipedia entirely. `parseFirstPrint` preferred-`set_name` lookup is also covered for the auto-detect path. `parsePrintVariants` includes synthetic scenarios aligned with the `yugioh_same_card_set_variant_tests` fixture (dual-rarity vs multi-code within one display set, duplicate suppression, and no merge across unrelated `set_name` rows when the picker label matches nothing).

tests/CMakeLists.txt

@@ -19,10 +19,19 @@ add_executable(ccm_core_tests
     card_preview_service_tests.cpp
     local_preview_byte_cache_tests.cpp
     std_file_system_tests.cpp
+    pokemon_west_set_id_tests.cpp
+    pokemon_collection_set_sync_tests.cpp
     pokemon_set_source_tests.cpp
     pokemon_card_preview_source_tests.cpp
     digibattle99_set_source_tests.cpp
     digibattle99_card_preview_source_tests.cpp
+    digibattle99_set_completion_tests.cpp
+    yugiohbandai_set_source_tests.cpp
+    yugiohbandai_card_preview_source_tests.cpp
+    yugiohbandai_set_completion_tests.cpp
+    yugioh_set_completion_tests.cpp
+    pokemon_set_completion_tests.cpp
+    set_no_natural_tests.cpp
     japanese_pokemon_en_catalog_tests.cpp
     japanese_pokemon_set_source_tests.cpp
     japanese_pokemon_card_preview_source_tests.cpp
@@ -34,6 +43,7 @@ add_executable(ccm_core_tests
     card_sorter_tests.cpp
     card_filter_tests.cpp
     ascii_utils_tests.cpp
+    card_lookup_detect_tests.cpp
     http_get_mapping_tests.cpp
     cpr_http_client_tests.cpp
 

tests/card_filter_tests.cpp

@@ -10,6 +10,7 @@
 #include "ccm/domain/JapanesePokemonCard.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 #include "ccm/services/CardFilter.hpp"
 
@@ -287,6 +288,39 @@ TEST_SUITE("CardFilter::matchesDigiBattle99Filter") {
     }
 }
 
+TEST_SUITE("CardFilter::matchesYuGiOhBandaiFilter") {
+    TEST_CASE("matches name set setNo rarity language") {
+        YuGiOhBandaiCard c;
+        c.name = "Dark Magician";
+        c.set.name = "1st Generation";
+        c.setNo = "14";
+        c.rarity = "Rare";
+        c.language = Language::Japanese;
+        CHECK(matchesYuGiOhBandaiFilter(c, "magician"));
+        CHECK(matchesYuGiOhBandaiFilter(c, "1st"));
+        CHECK(matchesYuGiOhBandaiFilter(c, "14"));
+        CHECK(matchesYuGiOhBandaiFilter(c, "rare"));
+        CHECK(matchesYuGiOhBandaiFilter(c, "japanese"));
+        CHECK_FALSE(matchesYuGiOhBandaiFilter(c, "blue-eyes"));
+    }
+
+    TEST_CASE("empty filter matches everything") {
+        YuGiOhBandaiCard c;
+        c.name = "Dark Magician";
+        CHECK(matchesYuGiOhBandaiFilter(c, ""));
+    }
+
+    TEST_CASE("boolean flag columns are not matched") {
+        YuGiOhBandaiCard c;
+        c.name = "Dark Magician";
+        c.holo = true;
+        c.signed_ = true;
+        c.altered = true;
+        CHECK_FALSE(matchesYuGiOhBandaiFilter(c, "true"));
+        CHECK(matchesYuGiOhBandaiFilter(c, "dark"));
+    }
+}
+
 TEST_SUITE("CardFilter::matchesJapanesePokemonFilter") {
     TEST_CASE("matches by name and set.name") {
         JapanesePokemonCard c;

tests/card_lookup_detect_tests.cpp

@@ -0,0 +1,33 @@
+#include <doctest/doctest.h>
+
+#include "ccm/util/CardLookupDetect.hpp"
+
+using namespace ccm;
+
+TEST_SUITE("preferDetectBySetNo") {
+    TEST_CASE("only set number filled uses reverse lookup") {
+        CHECK(preferDetectBySetNo(true, false, CardLookupEditField::None));
+        CHECK(preferDetectBySetNo(true, false, CardLookupEditField::Name));
+        CHECK(preferDetectBySetNo(true, false, CardLookupEditField::SetNo));
+    }
+
+    TEST_CASE("only name filled uses name lookup") {
+        CHECK_FALSE(preferDetectBySetNo(false, true, CardLookupEditField::None));
+        CHECK_FALSE(preferDetectBySetNo(false, true, CardLookupEditField::Name));
+        CHECK_FALSE(preferDetectBySetNo(false, true, CardLookupEditField::SetNo));
+    }
+
+    TEST_CASE("both empty does not prefer reverse") {
+        CHECK_FALSE(preferDetectBySetNo(true, true, CardLookupEditField::None));
+        CHECK_FALSE(preferDetectBySetNo(true, true, CardLookupEditField::SetNo));
+    }
+
+    TEST_CASE("both filled: last edited SetNo prefers reverse") {
+        CHECK(preferDetectBySetNo(false, false, CardLookupEditField::SetNo));
+    }
+
+    TEST_CASE("both filled: Name or None keeps name lookup") {
+        CHECK_FALSE(preferDetectBySetNo(false, false, CardLookupEditField::Name));
+        CHECK_FALSE(preferDetectBySetNo(false, false, CardLookupEditField::None));
+    }
+}

tests/card_preview_service_tests.cpp

@@ -34,6 +34,7 @@ public:
     std::string lastSetNo;
     std::string detectLastName;
     std::string detectLastSetId;
+    std::string detectLastSetNo;
     AutoDetectedPrint detectedPrint{"LOB-001", "Ultra Rare"};
     bool allowAutoDetect{true};
 
@@ -67,6 +68,23 @@ public:
         return Result<std::vector<AutoDetectedPrint>>::ok(std::move(v));
     }
 
+    Result<AutoDetectedPrint> detectBySetNo(std::string_view setId,
+                                            std::string_view setNo) override {
+        detectLastSetId = std::string(setId);
+        detectLastSetNo = std::string(setNo);
+        return Result<AutoDetectedPrint>::ok(detectedPrint);
+    }
+
+    Result<std::vector<AutoDetectedPrint>> detectVariantsBySetNo(
+        std::string_view setId,
+        std::string_view setNo) override {
+        detectLastSetId = std::string(setId);
+        detectLastSetNo = std::string(setNo);
+        std::vector<AutoDetectedPrint> v;
+        v.push_back(detectedPrint);
+        return Result<std::vector<AutoDetectedPrint>>::ok(std::move(v));
+    }
+
     [[nodiscard]] bool supportsAutoDetectPrint() const noexcept override {
         return allowAutoDetect;
     }
@@ -992,3 +1010,41 @@ TEST_SUITE("CardPreviewService::detectPrintVariants") {
               std::string::npos);
     }
 }
+
+TEST_SUITE("CardPreviewService::detectVariantsBySetNo") {
+    TEST_CASE("routes set-scoped reverse lookup to registered source") {
+        FakeSource source;
+        source.detectedPrint = AutoDetectedPrint{"4", "Rare", "Pikachu"};
+        FakeGameModule module;
+        module.gameId = Game::Pokemon;
+        module.preview = &source;
+
+        FixedHttpClient http;
+        CardPreviewService svc{http};
+        svc.registerModule(module);
+
+        const auto out = svc.detectVariantsBySetNo(Game::Pokemon, "base1", "4");
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().size() == 1);
+        CHECK(out.value()[0].name == "Pikachu");
+        CHECK(out.value()[0].setNo == "4");
+        CHECK(source.detectLastSetId == "base1");
+        CHECK(source.detectLastSetNo == "4");
+    }
+
+    TEST_CASE("returns error when game does not enable auto-detect") {
+        FakeSource source;
+        source.allowAutoDetect = false;
+        FakeGameModule module;
+        module.gameId = Game::Magic;
+        module.preview = &source;
+
+        FixedHttpClient http;
+        CardPreviewService svc{http};
+        svc.registerModule(module);
+
+        const auto out = svc.detectVariantsBySetNo(Game::Magic, "lea", "1");
+        CHECK(out.isErr());
+        CHECK(out.error().find("not enabled") != std::string::npos);
+    }
+}

tests/card_sorter_tests.cpp

@@ -10,6 +10,7 @@
 #include "ccm/domain/JapanesePokemonCard.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 #include "ccm/domain/Set.hpp"
 #include "ccm/services/CardSorter.hpp"
@@ -548,6 +549,51 @@ TEST_SUITE("CardSorter - DigiBattle99 columns") {
     }
 }
 
+TEST_SUITE("CardSorter - YuGiOhBandai columns") {
+    TEST_CASE("Holo sorts false before true; Rarity and SetNo sort") {
+        YuGiOhBandaiCard a;
+        a.id = 1;
+        a.name = "a";
+        a.set = Set{"ban1", "1st Generation", "1998/09/01"};
+        a.setNo = "14";
+        a.rarity = "Rare";
+        a.holo = true;
+
+        YuGiOhBandaiCard b;
+        b.id = 2;
+        b.name = "b";
+        b.set = Set{"ban1", "1st Generation", "1998/09/01"};
+        b.setNo = "9";
+        b.rarity = "Common";
+        b.holo = false;
+
+        std::vector<YuGiOhBandaiCard> v = {a, b};
+        sortYuGiOhBandaiCards(v, YuGiOhBandaiSortColumn::Holo, /*ascending=*/true);
+        CHECK(v[0].id == 2);
+        CHECK(v[1].id == 1);
+
+        sortYuGiOhBandaiCards(v, YuGiOhBandaiSortColumn::SetNo, /*ascending=*/true);
+        CHECK(v[0].setNo == "14");
+        CHECK(v[1].setNo == "9");
+
+        sortYuGiOhBandaiCards(v, YuGiOhBandaiSortColumn::Rarity, /*ascending=*/true);
+        CHECK(v[0].rarity == "Common");
+    }
+
+    TEST_CASE("Set column sorts by release date") {
+        YuGiOhBandaiCard a;
+        a.id = 1;
+        a.set = Set{"ban3", "3rd Generation", "1999/03/06"};
+        YuGiOhBandaiCard b;
+        b.id = 2;
+        b.set = Set{"ban1", "1st Generation", "1998/09/01"};
+        std::vector<YuGiOhBandaiCard> v = {a, b};
+        sortYuGiOhBandaiCards(v, YuGiOhBandaiSortColumn::SetReleaseDate, /*ascending=*/true);
+        CHECK(v[0].id == 2);
+        CHECK(v[1].id == 1);
+    }
+}
+
 TEST_SUITE("CardSorter - JapanesePokemon columns") {
     TEST_CASE("Holo and FirstEdition sort false before true") {
         std::vector<JapanesePokemonCard> v = {

tests/collection_service_tests.cpp

@@ -236,4 +236,22 @@ TEST_SUITE("CollectionService<MagicCard>") {
         CHECK(store.removed[0].second == "a.png");
         CHECK(store.removed[1].second == "b.png");
     }
+
+    TEST_CASE("saveAll replaces the collection map") {
+        InMemoryRepo repo;
+        StubImageStore store;
+        CollectionService<MagicCard> svc{repo, store};
+
+        REQUIRE(svc.add(Game::Magic, makeCard("A")).isOk());
+        REQUIRE(svc.add(Game::Magic, makeCard("B")).isOk());
+
+        MagicCard only = makeCard("Only");
+        only.id = 7;
+        REQUIRE(svc.saveAll(Game::Magic, {only}).isOk());
+        auto listed = svc.list(Game::Magic);
+        REQUIRE(listed.isOk());
+        REQUIRE(listed.value().size() == 1);
+        CHECK(listed.value()[0].id == 7);
+        CHECK(listed.value()[0].name == "Only");
+    }
 }

tests/digibattle99_card_preview_source_tests.cpp

@@ -177,3 +177,56 @@ TEST_SUITE("DigiBattle99CardPreviewSource::detectPrintVariants") {
         CHECK(out.value()[1].setNo == "ST-126");
     }
 }
+
+TEST_SUITE("DigiBattle99CardPreviewSource::detectVariantsBySetNo") {
+    TEST_CASE("card id search fills name within pack") {
+        FixedHttpClient http;
+        http.body = R"([
+            {"name":"Agumon","id":"ST-01","set_name":["Series 1 Starter Set"]}
+        ])";
+        DigiBattle99CardPreviewSource src{http};
+        const auto out = src.detectVariantsBySetNo("Series 1 Starter Set", "st-01");
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().size() == 1);
+        CHECK(out.value()[0].name == "Agumon");
+        CHECK(out.value()[0].setNo == "ST-01");
+        CHECK(http.lastUrl.find("card=ST-01") != std::string::npos);
+    }
+
+    TEST_CASE("digits-only 1 matches ST-01 not ST-11 from fuzzy API hits") {
+        FixedHttpClient http;
+        http.body = R"([
+            {"name":"Patamon","id":"ST-11","set_name":["Series 1 Starter Set"]},
+            {"name":"Agumon","id":"ST-01","set_name":["Series 1 Starter Set"]},
+            {"name":"Other","id":"BO-1","set_name":["Booster 1"]}
+        ])";
+        DigiBattle99CardPreviewSource src{http};
+        const auto out = src.detectVariantsBySetNo("Series 1 Starter Set", "1");
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().size() == 1);
+        CHECK(out.value()[0].name == "Agumon");
+        CHECK(out.value()[0].setNo == "ST-01");
+    }
+
+    TEST_CASE("digits-only 11 matches ST-11 not ST-01") {
+        FixedHttpClient http;
+        http.body = R"([
+            {"name":"Agumon","id":"ST-01","set_name":["Series 1 Starter Set"]},
+            {"name":"Patamon","id":"ST-11","set_name":["Series 1 Starter Set"]}
+        ])";
+        DigiBattle99CardPreviewSource src{http};
+        const auto out = src.detectVariantsBySetNo("Series 1 Starter Set", "11");
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().size() == 1);
+        CHECK(out.value()[0].name == "Patamon");
+        CHECK(out.value()[0].setNo == "ST-11");
+    }
+
+    TEST_CASE("empty pack is rejected") {
+        FixedHttpClient http;
+        DigiBattle99CardPreviewSource src{http};
+        const auto out = src.detectVariantsBySetNo("", "ST-01");
+        REQUIRE(out.isErr());
+        CHECK(out.error().find("set") != std::string::npos);
+    }
+}

tests/digibattle99_set_completion_tests.cpp

@@ -0,0 +1,263 @@
+#include <doctest/doctest.h>
+
+#include "ccm/domain/DigiBattle99Card.hpp"
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
+#include "ccm/services/ConfigService.hpp"
+#include "ccm/services/DigiBattle99SetCatalogService.hpp"
+#include "ccm/services/DigiBattle99SetCompletion.hpp"
+#include "fakes/InMemoryFileSystem.hpp"
+
+#include <nlohmann/json.hpp>
+
+using namespace ccm;
+using ccm::testing::InMemoryFileSystem;
+
+namespace {
+
+ConfigService makeConfig(InMemoryFileSystem& fs, const std::string& dataDir) {
+    Configuration c;
+    c.dataStorage = dataDir;
+    c.defaultGame = Game::Magic;
+    fs.writeText("/app/config.json", nlohmann::json(c).dump());
+    ConfigService cfg{fs, "/app/config.json", dataDir};
+    cfg.initialize();
+    return cfg;
+}
+
+DigiBattle99Card makeOwned(std::string setId, std::string setName, std::string setNo) {
+    DigiBattle99Card c;
+    c.id = 1;
+    c.name = "Owned";
+    c.set.id = std::move(setId);
+    c.set.name = std::move(setName);
+    c.setNo = std::move(setNo);
+    return c;
+}
+
+DigiBattle99SetCatalog sampleCatalog() {
+    DigiBattle99SetCatalog catalog;
+    DigiBattle99SetCatalogPack starter;
+    starter.setId = "series-1-starter-set";
+    starter.setName = "Series 1 Starter Set";
+    starter.cards = {
+        {"ST-01", "Agumon"},
+        {"ST-02", "Greymon"},
+        {"ST-03", "Gabumon"},
+    };
+    DigiBattle99SetCatalogPack booster;
+    booster.setId = "series-1-booster-pack";
+    booster.setName = "Series 1 Booster Pack";
+    booster.cards = {
+        {"ST-01", "Agumon"},
+        {"BO-01", "MetalGreymon"},
+    };
+    catalog.packs.push_back(std::move(booster));
+    catalog.packs.push_back(std::move(starter));
+    return catalog;
+}
+
+}  // namespace
+
+TEST_SUITE("computeDigiBattle99SetCompletion") {
+    TEST_CASE("only packs with owned cards appear") {
+        const auto catalog = sampleCatalog();
+        std::vector<DigiBattle99Card> collection{
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01"),
+        };
+        const auto rows = computeDigiBattle99SetCompletion(collection, catalog);
+        REQUIRE(rows.size() == 1);
+        CHECK(rows[0].setId == "series-1-starter-set");
+        CHECK(rows[0].ownedUnique == 1);
+        CHECK(rows[0].total == 3);
+        CHECK(rows[0].percent() == 33);
+    }
+
+    TEST_CASE("unique setNo within a pack; amount does not inflate") {
+        const auto catalog = sampleCatalog();
+        DigiBattle99Card a = makeOwned("series-1-starter-set", "Series 1 Starter Set", "st-01");
+        a.amount = 4;
+        DigiBattle99Card b = makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01");
+        b.id = 2;
+        DigiBattle99Card c = makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-02");
+        c.id = 3;
+        const auto rows =
+            computeDigiBattle99SetCompletion({a, b, c}, catalog);
+        REQUIRE(rows.size() == 1);
+        CHECK(rows[0].ownedUnique == 2);
+        CHECK(rows[0].total == 3);
+        CHECK(rows[0].percent() == 66);
+    }
+
+    TEST_CASE("ownership on one pack does not complete another pack sharing setNo") {
+        const auto catalog = sampleCatalog();
+        std::vector<DigiBattle99Card> collection{
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01"),
+        };
+        const auto rows = computeDigiBattle99SetCompletion(collection, catalog);
+        REQUIRE(rows.size() == 1);
+        CHECK(rows[0].setId == "series-1-starter-set");
+    }
+
+    TEST_CASE("empty catalog yields no rows") {
+        DigiBattle99SetCatalog empty;
+        std::vector<DigiBattle99Card> collection{
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01"),
+        };
+        CHECK(computeDigiBattle99SetCompletion(collection, empty).empty());
+    }
+
+    TEST_CASE("owned set missing from catalog is skipped") {
+        DigiBattle99SetCatalog catalog;
+        DigiBattle99SetCatalogPack onlyBooster;
+        onlyBooster.setId = "series-1-booster-pack";
+        onlyBooster.setName = "Series 1 Booster Pack";
+        onlyBooster.cards = {{"BO-01", "MetalGreymon"}};
+        catalog.packs.push_back(std::move(onlyBooster));
+
+        std::vector<DigiBattle99Card> collection{
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01"),
+        };
+        CHECK(computeDigiBattle99SetCompletion(collection, catalog).empty());
+    }
+
+    TEST_CASE("language filter hides packs with no cards in that language") {
+        const auto catalog = sampleCatalog();
+        DigiBattle99Card en =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01");
+        en.language = Language::English;
+
+        const auto allRows = computeDigiBattle99SetCompletion({en}, catalog);
+        REQUIRE(allRows.size() == 1);
+
+        const auto deRows =
+            computeDigiBattle99SetCompletion({en}, catalog, Language::German);
+        CHECK(deRows.empty());
+
+        const auto enRows =
+            computeDigiBattle99SetCompletion({en}, catalog, Language::English);
+        REQUIRE(enRows.size() == 1);
+        CHECK(enRows[0].ownedUnique == 1);
+    }
+
+    TEST_CASE("same setNo in two languages counts once aggregated; filter is exclusive") {
+        const auto catalog = sampleCatalog();
+        DigiBattle99Card en =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01");
+        en.language = Language::English;
+        DigiBattle99Card de =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01");
+        de.id = 2;
+        de.language = Language::German;
+
+        const auto allRows = computeDigiBattle99SetCompletion({en, de}, catalog);
+        REQUIRE(allRows.size() == 1);
+        CHECK(allRows[0].ownedUnique == 1);
+
+        const auto enRows =
+            computeDigiBattle99SetCompletion({en, de}, catalog, Language::English);
+        REQUIRE(enRows.size() == 1);
+        CHECK(enRows[0].ownedUnique == 1);
+
+        DigiBattle99Card deOnly =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-02");
+        deOnly.id = 3;
+        deOnly.language = Language::German;
+        const auto deRows = computeDigiBattle99SetCompletion({en, de, deOnly}, catalog,
+                                                             Language::German);
+        REQUIRE(deRows.size() == 1);
+        CHECK(deRows[0].ownedUnique == 2);
+    }
+}
+
+TEST_SUITE("digiBattle99ChecklistForSet") {
+    TEST_CASE("greys missing cards and marks owned ones") {
+        const auto catalog = sampleCatalog();
+        std::vector<DigiBattle99Card> collection{
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-02"),
+        };
+        const auto list =
+            digiBattle99ChecklistForSet(collection, catalog, "series-1-starter-set");
+        REQUIRE(list.size() == 3);
+        CHECK(list[0].setNo == "ST-01");
+        CHECK(list[0].owned == false);
+        CHECK(list[1].setNo == "ST-02");
+        CHECK(list[1].owned == true);
+        CHECK(list[2].setNo == "ST-03");
+        CHECK(list[2].owned == false);
+    }
+
+    TEST_CASE("unknown set returns empty") {
+        const auto catalog = sampleCatalog();
+        CHECK(digiBattle99ChecklistForSet({}, catalog, "missing").empty());
+    }
+
+    TEST_CASE("owned flags respect language filter") {
+        const auto catalog = sampleCatalog();
+        DigiBattle99Card en =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-02");
+        en.language = Language::English;
+
+        const auto filtered =
+            digiBattle99ChecklistForSet({en}, catalog, "series-1-starter-set",
+                                        Language::German);
+        REQUIRE(filtered.size() == 3);
+        CHECK(filtered[0].owned == false);
+        CHECK(filtered[1].owned == false);
+        CHECK(filtered[2].owned == false);
+
+        const auto english =
+            digiBattle99ChecklistForSet({en}, catalog, "series-1-starter-set",
+                                        Language::English);
+        REQUIRE(english.size() == 3);
+        CHECK(english[1].owned == true);
+    }
+}
+
+TEST_SUITE("digiBattle99LanguagesInCollection") {
+    TEST_CASE("empty collection yields empty") {
+        CHECK(digiBattle99LanguagesInCollection({}).empty());
+    }
+
+    TEST_CASE("returns distinct languages in allLanguages order") {
+        DigiBattle99Card jp =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-01");
+        jp.language = Language::Japanese;
+        DigiBattle99Card en =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-02");
+        en.id = 2;
+        en.language = Language::English;
+        DigiBattle99Card enDup =
+            makeOwned("series-1-booster-pack", "Series 1 Booster Pack", "BO-01");
+        enDup.id = 3;
+        enDup.language = Language::English;
+        DigiBattle99Card de =
+            makeOwned("series-1-starter-set", "Series 1 Starter Set", "ST-03");
+        de.id = 4;
+        de.language = Language::German;
+
+        const auto langs = digiBattle99LanguagesInCollection({jp, en, enDup, de});
+        REQUIRE(langs.size() == 3);
+        CHECK(langs[0] == Language::English);
+        CHECK(langs[1] == Language::German);
+        CHECK(langs[2] == Language::Japanese);
+    }
+}
+
+TEST_SUITE("DigiBattle99SetCatalogService") {
+    TEST_CASE("save then load round-trips") {
+        InMemoryFileSystem fs;
+        auto config = makeConfig(fs, "/data");
+        DigiBattle99SetCatalogService store{fs, config, [](Game) { return "digibattle99"; }};
+
+        CHECK_FALSE(store.exists());
+        CHECK(store.load().isErr());
+
+        const auto catalog = sampleCatalog();
+        REQUIRE(store.save(catalog).isOk());
+        CHECK(store.exists());
+
+        const auto loaded = store.load();
+        REQUIRE(loaded.isOk());
+        CHECK(loaded.value() == catalog);
+    }
+}

tests/digibattle99_set_source_tests.cpp

@@ -109,4 +109,75 @@ TEST_SUITE("DigiBattle99SetSource::fetchAll") {
         CHECK(out.value().front().id == "series-1-starter-set");
         CHECK(http.lastUrl == DigiBattle99SetSource::kEndpoint);
     }
+
+    TEST_CASE("fetchAllWithCatalog returns sets and pack cards in one GET") {
+        FixedHttpClient http;
+        http.ok = true;
+        http.body = R"([
+            {"name":"Agumon","id":"st-01","set_name":["Series 1 Starter Set","Series 1 Booster Pack"]},
+            {"name":"Greymon","id":"ST-02","set_name":["Series 1 Starter Set"]}
+        ])";
+        DigiBattle99SetSource src{http};
+        const auto out = src.fetchAllWithCatalog();
+        REQUIRE(out.isOk());
+        CHECK(out.value().sets.size() == 2);
+        const auto* starter = out.value().catalog.findPack("series-1-starter-set");
+        REQUIRE(starter != nullptr);
+        REQUIRE(starter->cards.size() == 2);
+        CHECK(starter->cards[0].setNo == "ST-01");
+        CHECK(starter->cards[0].name == "Agumon");
+        const auto* booster = out.value().catalog.findPack("series-1-booster-pack");
+        REQUIRE(booster != nullptr);
+        REQUIRE(booster->cards.size() == 1);
+        CHECK(booster->cards[0].setNo == "ST-01");
+        CHECK(http.lastUrl == DigiBattle99SetSource::kEndpoint);
+    }
+}
+
+TEST_SUITE("DigiBattle99SetSource::parseCatalog") {
+    TEST_CASE("lists a card under every pack in set_name") {
+        const std::string json = R"([
+            {"name":"Agumon","id":"ST-01","set_name":["Series 1 Starter Set","Series 1 Booster Pack"]},
+            {"name":"MetalGreymon","id":"BO-01","set_name":["Series 1 Booster Pack"]}
+        ])";
+        const auto out = DigiBattle99SetSource::parseCatalog(json);
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().packs.size() == 2);
+
+        const auto* booster = out.value().findPack("series-1-booster-pack");
+        REQUIRE(booster != nullptr);
+        REQUIRE(booster->cards.size() == 2);
+        CHECK(booster->cards[0].setNo == "BO-01");
+        CHECK(booster->cards[1].setNo == "ST-01");
+
+        const auto* starter = out.value().findPack("series-1-starter-set");
+        REQUIRE(starter != nullptr);
+        REQUIRE(starter->cards.size() == 1);
+        CHECK(starter->cards[0].setNo == "ST-01");
+    }
+
+    TEST_CASE("dedupes the same setNo within one pack") {
+        const std::string json = R"([
+            {"name":"Agumon","id":"ST-01","set_name":["Series 1 Starter Set"]},
+            {"name":"Agumon Alt","id":"ST-01","set_name":["Series 1 Starter Set"]}
+        ])";
+        const auto out = DigiBattle99SetSource::parseCatalog(json);
+        REQUIRE(out.isOk());
+        const auto* starter = out.value().findPack("series-1-starter-set");
+        REQUIRE(starter != nullptr);
+        REQUIRE(starter->cards.size() == 1);
+        CHECK(starter->cards[0].name == "Agumon");
+    }
+
+    TEST_CASE("empty array returns an empty catalog") {
+        const auto out = DigiBattle99SetSource::parseCatalog("[]");
+        REQUIRE(out.isOk());
+        CHECK(out.value().empty());
+    }
+
+    TEST_CASE("error object is an error") {
+        const auto out = DigiBattle99SetSource::parseCatalog(
+            R"({"error":"No cards found for this search."})");
+        CHECK(out.isErr());
+    }
 }

tests/domain_json_tests.cpp

@@ -2,10 +2,15 @@
 
 #include "ccm/domain/Configuration.hpp"
 #include "ccm/domain/DigiBattle99Card.hpp"
+#include "ccm/domain/DigiBattle99SetCatalog.hpp"
+#include "ccm/domain/PokemonSetCatalog.hpp"
+#include "ccm/domain/YuGiOhSetCatalog.hpp"
 #include "ccm/domain/Enums.hpp"
 #include "ccm/domain/JapanesePokemonCard.hpp"
 #include "ccm/domain/MagicCard.hpp"
 #include "ccm/domain/PokemonCard.hpp"
+#include "ccm/domain/YuGiOhBandaiCard.hpp"
+#include "ccm/domain/YuGiOhBandaiSetCatalog.hpp"
 #include "ccm/domain/YuGiOhCard.hpp"
 #include "ccm/domain/Set.hpp"
 
@@ -28,6 +33,9 @@ TEST_SUITE("domain enums round-trip JSON as strings") {
         nlohmann::json jDigi = "DigiBattle99";
         CHECK(jDigi.get<Game>() == Game::DigiBattle99);
 
+        nlohmann::json jBandai = "YuGiOhBandai";
+        CHECK(jBandai.get<Game>() == Game::YuGiOhBandai);
+
         nlohmann::json jJp = "JapanesePokemon";
         CHECK(jJp.get<Game>() == Game::JapanesePokemon);
 
@@ -74,7 +82,7 @@ TEST_SUITE("domain enums round-trip JSON as strings") {
         for (const auto game : allGames()) {
             CHECK(game != Game::JapanesePokemon);
         }
-        CHECK(allGames().size() == 4);
+        CHECK(allGames().size() == 5);
         CHECK(gameFromString("JapanesePokemon") == Game::JapanesePokemon);
         CHECK(pokemonBackendGame(PokemonRegion::West) == Game::Pokemon);
         CHECK(pokemonBackendGame(PokemonRegion::Asia) == Game::JapanesePokemon);
@@ -215,6 +223,48 @@ TEST_SUITE("PokemonCard JSON") {
         const PokemonCard legacy = j.get<PokemonCard>();
         CHECK(legacy.region == PokemonRegion::West);
     }
+
+    TEST_CASE("West load migrates legacy pokemontcg set ids to TCGdex EN") {
+        nlohmann::json j = {
+            {"id", 1},
+            {"amount", 1},
+            {"name", "Charizard"},
+            {"set", {{"id", "sv1"}, {"name", "Scarlet & Violet"}, {"releaseDate", "2023/03/31"}}},
+            {"setNo", "6"},
+            {"note", ""},
+            {"images", nlohmann::json::array()},
+            {"language", "English"},
+            {"condition", "NearMint"},
+            {"firstEdition", false},
+            {"holo", false},
+            {"signed", false},
+            {"altered", false},
+            {"region", "West"},
+        };
+        const PokemonCard back = j.get<PokemonCard>();
+        CHECK(back.set.id == "sv01");
+    }
+
+    TEST_CASE("Asia load does not rewrite set ids through West aliases") {
+        nlohmann::json j = {
+            {"id", 1},
+            {"amount", 1},
+            {"name", "Charmander"},
+            {"set", {{"id", "sv1"}, {"name", "Keep Asia id"}, {"releaseDate", "2023/01/01"}}},
+            {"setNo", "001"},
+            {"note", ""},
+            {"images", nlohmann::json::array()},
+            {"language", "Japanese"},
+            {"condition", "NearMint"},
+            {"firstEdition", false},
+            {"holo", false},
+            {"signed", false},
+            {"altered", false},
+            {"region", "Asia"},
+        };
+        const PokemonCard back = j.get<PokemonCard>();
+        CHECK(back.set.id == "sv1");
+    }
 }
 
 TEST_SUITE("DigiBattle99Card JSON") {
@@ -245,6 +295,165 @@ TEST_SUITE("DigiBattle99Card JSON") {
     }
 }
 
+TEST_SUITE("DigiBattle99SetCatalog JSON") {
+    TEST_CASE("round-trips packs and setNo alias") {
+        DigiBattle99SetCatalog catalog;
+        DigiBattle99SetCatalogPack pack;
+        pack.setId = "series-1-starter-set";
+        pack.setName = "Series 1 Starter Set";
+        pack.cards.push_back(DigiBattle99CatalogCard{"ST-01", "Agumon"});
+        pack.cards.push_back(DigiBattle99CatalogCard{"ST-126", "Agumon"});
+        catalog.packs.push_back(std::move(pack));
+
+        nlohmann::json j = catalog;
+        CHECK(j.at("packs").is_array());
+        CHECK(j.at("packs").at(0).at("id") == "series-1-starter-set");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("setNo") == "ST-01");
+
+        const DigiBattle99SetCatalog back = j.get<DigiBattle99SetCatalog>();
+        CHECK(back == catalog);
+        CHECK(back.findPack("series-1-starter-set") != nullptr);
+        CHECK(back.findPack("missing") == nullptr);
+    }
+}
+
+TEST_SUITE("YuGiOhBandaiCard JSON") {
+    TEST_CASE("round-trips with setNo, rarity, holo and signed alias") {
+        YuGiOhBandaiCard c;
+        c.id = 14;
+        c.amount = 2;
+        c.name = "Dark Magician";
+        c.set = Set{"ban1", "1st Generation", "1998/09/01"};
+        c.setNo = "14";
+        c.rarity = "Rare";
+        c.note = "classic";
+        c.images = {"a.png"};
+        c.language = Language::Japanese;
+        c.condition = Condition::NearMint;
+        c.holo = true;
+        c.signed_ = true;
+        c.altered = false;
+
+        nlohmann::json j = c;
+        CHECK(j.at("setNo") == "14");
+        CHECK(j.at("rarity") == "Rare");
+        CHECK(j.at("holo") == true);
+        CHECK(j.at("signed") == true);
+        CHECK_FALSE(j.contains("firstEdition"));
+
+        const YuGiOhBandaiCard back = j.get<YuGiOhBandaiCard>();
+        CHECK(back == c);
+    }
+
+    TEST_CASE("missing each required key throws") {
+        const nlohmann::json full = {
+            {"id", 14},
+            {"amount", 1},
+            {"name", "Dark Magician"},
+            {"set", nlohmann::json{
+                {"id", "ban1"},
+                {"name", "1st Generation"},
+                {"releaseDate", "1998/09/01"},
+            }},
+            {"setNo", "14"},
+            {"rarity", "Rare"},
+            {"note", ""},
+            {"images", nlohmann::json::array()},
+            {"language", "Japanese"},
+            {"condition", "NearMint"},
+            {"holo", false},
+            {"signed", false},
+            {"altered", false},
+        };
+
+        for (const char* key : {
+                 "id", "amount", "name", "set", "setNo", "rarity", "note", "images",
+                 "language", "condition", "holo", "signed", "altered"}) {
+            nlohmann::json partial = full;
+            partial.erase(key);
+            CHECK_THROWS(partial.get<YuGiOhBandaiCard>());
+        }
+    }
+}
+
+TEST_SUITE("YuGiOhBandaiSetCatalog JSON") {
+    TEST_CASE("round-trips packs with rarity") {
+        YuGiOhBandaiSetCatalog catalog;
+        YuGiOhBandaiSetCatalogPack pack;
+        pack.setId = "ban1";
+        pack.setName = "1st Generation";
+        pack.cards.push_back(YuGiOhBandaiCatalogCard{"14", "Dark Magician", "Rare"});
+        pack.cards.push_back(YuGiOhBandaiCatalogCard{"9", "Blue-Eyes White Dragon", "Super Rare"});
+        catalog.packs.push_back(std::move(pack));
+
+        nlohmann::json j = catalog;
+        CHECK(j.at("packs").at(0).at("id") == "ban1");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("setNo") == "14");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("rarity") == "Rare");
+
+        const YuGiOhBandaiSetCatalog back = j.get<YuGiOhBandaiSetCatalog>();
+        CHECK(back == catalog);
+        CHECK(back.findPack("ban1") != nullptr);
+        CHECK(back.findPack("missing") == nullptr);
+    }
+}
+
+TEST_SUITE("YuGiOhSetCatalog JSON") {
+    TEST_CASE("round-trips packs and setNo alias") {
+        YuGiOhSetCatalog catalog;
+        YuGiOhSetCatalogPack pack;
+        pack.setId = "LOB";
+        pack.setName = "Legend of Blue Eyes White Dragon";
+        pack.cards.push_back(YuGiOhCatalogCard{"LOB-001", "Blue-Eyes White Dragon", "Ultra Rare"});
+        pack.cards.push_back(YuGiOhCatalogCard{"LOB-EN005", "Dark Magician", "Ultra Rare"});
+        catalog.packs.push_back(std::move(pack));
+
+        nlohmann::json j = catalog;
+        CHECK(j.at("packs").is_array());
+        CHECK(j.at("packs").at(0).at("id") == "LOB");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("setNo") == "LOB-001");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("rarity") == "Ultra Rare");
+
+        const YuGiOhSetCatalog back = j.get<YuGiOhSetCatalog>();
+        CHECK(back == catalog);
+        CHECK(back.findPack("LOB") != nullptr);
+        CHECK(back.findPack("missing") == nullptr);
+    }
+
+    TEST_CASE("legacy catalog JSON without rarity still loads") {
+        const auto j = nlohmann::json::parse(R"({
+          "packs":[{"id":"LOB","name":"Legend of Blue Eyes White Dragon",
+            "cards":[{"setNo":"LOB-001","name":"Blue-Eyes White Dragon"}]}]
+        })");
+        const YuGiOhSetCatalog back = j.get<YuGiOhSetCatalog>();
+        REQUIRE(back.packs.size() == 1);
+        REQUIRE(back.packs[0].cards.size() == 1);
+        CHECK(back.packs[0].cards[0].rarity.empty());
+    }
+}
+
+TEST_SUITE("PokemonSetCatalog JSON") {
+    TEST_CASE("round-trips packs and setNo alias") {
+        PokemonSetCatalog catalog;
+        PokemonSetCatalogPack pack;
+        pack.setId = "base1";
+        pack.setName = "Base";
+        pack.cards.push_back(PokemonCatalogCard{"4", "Charizard"});
+        pack.cards.push_back(PokemonCatalogCard{"58", "Growlithe"});
+        catalog.packs.push_back(std::move(pack));
+
+        nlohmann::json j = catalog;
+        CHECK(j.at("packs").is_array());
+        CHECK(j.at("packs").at(0).at("id") == "base1");
+        CHECK(j.at("packs").at(0).at("cards").at(0).at("setNo") == "4");
+
+        const PokemonSetCatalog back = j.get<PokemonSetCatalog>();
+        CHECK(back == catalog);
+        CHECK(back.findPack("base1") != nullptr);
+        CHECK(back.findPack("missing") == nullptr);
+    }
+}
+
 TEST_SUITE("JapanesePokemonCard JSON") {
     TEST_CASE("uses 'setNo' and 'firstEdition' aliases") {
         JapanesePokemonCard c;

tests/fs_names_tests.cpp

@@ -28,6 +28,13 @@ TEST_SUITE("FsNames::formatTextForFs") {
     TEST_CASE("idempotent on already-clean strings") {
         CHECK(formatTextForFs("AlreadyClean") == "AlreadyClean");
     }
+
+    TEST_CASE("male and female signs become male/female") {
+        CHECK(formatTextForFs("\xE2\x99\x82") == "male");
+        CHECK(formatTextForFs("\xE2\x99\x80") == "female");
+        CHECK(formatTextForFs("Nidoran \xE2\x99\x82") == "Nidoranmale");
+        CHECK(formatTextForFs("Nidoran \xE2\x99\x80") == "Nidoranfemale");
+    }
 }
 
 TEST_SUITE("FsNames::parseIndexFromFilename") {

tests/game_module_tests.cpp

@@ -5,6 +5,7 @@
 #include "ccm/games/pokemon/PokemonGameModule.hpp"
 #include "ccm/games/pokemonjp/JapanesePokemonGameModule.hpp"
 #include "ccm/games/yugioh/YuGiOhGameModule.hpp"
+#include "ccm/games/yugiohbandai/YuGiOhBandaiGameModule.hpp"
 #include "ccm/ports/IHttpClient.hpp"
 
 using namespace ccm;
@@ -65,6 +66,17 @@ TEST_SUITE("game modules expose stable identity and wiring") {
         CHECK(static_cast<void*>(&module.setSource()) != static_cast<void*>(module.cardPreviewSource()));
     }
 
+    TEST_CASE("YuGiOhBandai module reports canonical metadata") {
+        NoopHttpClient http;
+        YuGiOhBandaiGameModule module(http);
+
+        CHECK(module.id() == Game::YuGiOhBandai);
+        CHECK(module.dirName() == "yugiohbandai");
+        CHECK(module.displayName() == "Yu-Gi-Oh! (Bandai)");
+        CHECK(module.cardPreviewSource() != nullptr);
+        CHECK(static_cast<void*>(&module.setSource()) != static_cast<void*>(module.cardPreviewSource()));
+    }
+
     TEST_CASE("JapanesePokemon module reports canonical metadata") {
         NoopHttpClient http;
         JapanesePokemonGameModule module(http);

tests/japanese_pokemon_card_preview_source_tests.cpp

@@ -591,3 +591,58 @@ TEST_SUITE("JapanesePokemonCardPreviewSource::detectPrintVariants catalog-only")
         CHECK(shining.value()[0].setNo == "013");
     }
 }
+
+TEST_SUITE("JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog") {
+    TEST_CASE("resolves English name from setId + localId") {
+        const auto catalog = JapanesePokemonEnCatalog::parse(R"({
+          "sets": {},
+          "prints": [
+            {"set_id":"PMCG1","local_id":"001","name_en":"Bulbasaur","name_ja":"フシギダネ"}
+          ]
+        })");
+        REQUIRE(catalog.isOk());
+        const auto out = JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog(
+            "PMCG1", "001", catalog.value());
+        REQUIRE(out.isOk());
+        REQUIRE(out.value().size() == 1);
+        CHECK(out.value()[0].name == "Bulbasaur");
+        CHECK(out.value()[0].setNo == "001");
+    }
+
+    TEST_CASE("leading-zero-insensitive localId still resolves") {
+        const auto catalog = JapanesePokemonEnCatalog::parse(R"({
+          "sets": {},
+          "prints": [
+            {"set_id":"PMCG1","local_id":"001","name_en":"Bulbasaur","name_ja":"フシギダネ"},
+            {"set_id":"PMCG1","local_id":"011","name_en":"Weedle","name_ja":"ビードル"}
+          ]
+        })");
+        REQUIRE(catalog.isOk());
+        const auto byOne = JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog(
+            "PMCG1", "1", catalog.value());
+        REQUIRE(byOne.isOk());
+        REQUIRE(byOne.value().size() == 1);
+        CHECK(byOne.value()[0].name == "Bulbasaur");
+        CHECK(byOne.value()[0].setNo == "001");
+
+        const auto byEleven =
+            JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog(
+                "PMCG1", "11", catalog.value());
+        REQUIRE(byEleven.isOk());
+        REQUIRE(byEleven.value().size() == 1);
+        CHECK(byEleven.value()[0].name == "Weedle");
+    }
+
+    TEST_CASE("unknown localId is an error") {
+        const auto catalog = JapanesePokemonEnCatalog::parse(R"({
+          "sets": {},
+          "prints": [
+            {"set_id":"PMCG1","local_id":"001","name_en":"Bulbasaur","name_ja":"フシギダネ"}
+          ]
+        })");
+        REQUIRE(catalog.isOk());
+        const auto out = JapanesePokemonCardPreviewSource::detectVariantsBySetNoFromCatalog(
+            "PMCG1", "999", catalog.value());
+        REQUIRE(out.isErr());
+    }
+}

tests/japanese_pokemon_en_catalog_tests.cpp

@@ -139,6 +139,21 @@ TEST_SUITE("JapanesePokemonEnCatalog") {
         CHECK_FALSE(catalog.value().hasPrintsForSet("PMCG1"));
     }
 
+    TEST_CASE("printsForSet returns all prints for a set id") {
+        const auto catalog = JapanesePokemonEnCatalog::parse(R"({
+            "sets": {},
+            "prints": [
+                {"set_id":"A","local_id":"1","name_en":"One"},
+                {"set_id":"A","local_id":"2","name_en":"Two"},
+                {"set_id":"B","local_id":"1","name_en":"Other"}
+            ]
+        })");
+        REQUIRE(catalog.isOk());
+        const auto prints = catalog.value().printsForSet("A");
+        REQUIRE(prints.size() == 2);
+        CHECK(catalog.value().printsForSet("missing").empty());
+    }
+
     TEST_CASE("missing set/print returns nullopt") {
         JapanesePokemonEnCatalog empty;
         CHECK_FALSE(empty.findSet("X").has_value());