function notesApp(initialNotes, albumId) {
  return {
    open: false,
    notes: initialNotes,
    status: '',
    saveTimer: null,

    scheduleAutosave() {
      clearTimeout(this.saveTimer);
      this.status = 'Saving…';
      this.saveTimer = setTimeout(() => this.doSave(), 500);
    },

    async doSave() {
      const res = await fetch('/notes/save', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ album_id: albumId, notes: this.notes }),
      });
      this.status = res.ok ? 'Saved ✓' : 'Error';
    },

    async convertToEntry(text) {
      const res = await fetch('/group/from-note', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ album_id: albumId, text }),
      });
      if (res.ok) {
        this.status = 'Added as entry ✓';
      }
    },
  };
}