Move stats to their own models

app/Models/ReleaseStat.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\DB;
+
+class ReleaseStat extends Model
+{
+    use HasFactory;
+
+    protected $guarded = [];
+
+    public static function insertRecentlyAdded(): void
+    {
+        $categories =  Category::query()->with('parent')->where('r.adddate', '>', now()->subWeek())->select([
+            'root_categories_id', DB::raw('COUNT(r.id) as count'), 'title',
+        ])->join('releases as r', 'r.categories_id', '=',
+            'categories.id')->groupBy('title')->orderByDesc('count')->get();
+
+        foreach($categories as $category) {
+            self::updateOrCreate([
+                'category' => $category->title,
+                'count' => $category->count,
+            ]);
+        }
+    }
+
+    public static function getRecentlyAdded(): array
+    {
+        return self::query()->select(['category', 'count'])->get()->toArray();
+    }
+}