ADD - notes app

frontend/src/utils/notes.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest'
+
+import { parseNotes } from './notes'
+
+describe('notes persistence', () => {
+  it('returns valid notes and ignores malformed entries', () => {
+    const valid = {
+      body: 'Meet at Mission Row.',
+      createdAt: 10,
+      id: 'note-1',
+      pinned: true,
+      title: 'Shift briefing',
+      updatedAt: 20,
+    }
+
+    expect(parseNotes(JSON.stringify([valid, { id: 'broken' }]))).toEqual([
+      valid,
+    ])
+  })
+
+  it('recovers from missing or invalid storage', () => {
+    expect(parseNotes(null)).toEqual([])
+    expect(parseNotes('{invalid')).toEqual([])
+    expect(parseNotes('{}')).toEqual([])
+  })
+})

frontend/src/utils/notes.ts

@@ -0,0 +1,48 @@
+export const NOTES_STORAGE_KEY = 'sky_phone.notes.v1'
+
+export type Note = {
+  body: string
+  createdAt: number
+  id: string
+  pinned: boolean
+  title: string
+  updatedAt: number
+}
+
+export type NoteDraft = Pick<Note, 'body' | 'title'>
+
+function isNote(value: unknown): value is Note {
+  if (!value || typeof value !== 'object') return false
+  const note = value as Partial<Note>
+  return (
+    typeof note.body === 'string' &&
+    typeof note.createdAt === 'number' &&
+    Number.isFinite(note.createdAt) &&
+    typeof note.id === 'string' &&
+    Boolean(note.id) &&
+    typeof note.pinned === 'boolean' &&
+    typeof note.title === 'string' &&
+    typeof note.updatedAt === 'number' &&
+    Number.isFinite(note.updatedAt)
+  )
+}
+
+export function parseNotes(raw: string | null): Note[] {
+  if (!raw) return []
+
+  try {
+    const parsed = JSON.parse(raw) as unknown
+    if (!Array.isArray(parsed)) return []
+    return parsed.filter(isNote)
+  } catch {
+    return []
+  }
+}
+
+export function readNotes(): Note[] {
+  return parseNotes(window.localStorage.getItem(NOTES_STORAGE_KEY))
+}
+
+export function writeNotes(notes: Note[]): void {
+  window.localStorage.setItem(NOTES_STORAGE_KEY, JSON.stringify(notes))
+}

frontend/src/utils/preferences.ts

@@ -50,6 +50,7 @@ const DEFAULT_APP_NOTIFICATIONS: Record<
   calculator: { enabled: true, sounds: true },
   camera: { enabled: true, sounds: true },
   clock: { enabled: true, sounds: true },
+  notes: { enabled: true, sounds: true },
   photos: { enabled: true, sounds: true },
   settings: { enabled: true, sounds: true },
 }