managarten/nutriphi/apps/mobile/store/AppStore.ts

import { create } from 'zustand';

interface AppState {
  isInitialized: boolean;
  isOnline: boolean;
  currentScreen: 'home' | 'camera' | 'detail' | 'settings';

  // UI States
  showCameraModal: boolean;
  cameraMode: 'camera' | 'gallery' | null;
  isPhotoProcessing: boolean;

  // User Preferences
  defaultMealType: 'breakfast' | 'lunch' | 'dinner' | 'snack' | null;
  enableNotifications: boolean;
  preferredUnits: 'metric' | 'imperial';
  theme: 'light' | 'dark' | 'system';

  // Stats Cache
  statsCache: {
    totalMeals: number;
    avgCalories: number;
    avgHealthScore: number;
    lastUpdated: string | null;
  };

  // Actions
  setInitialized: (initialized: boolean) => void;
  setOnlineStatus: (online: boolean) => void;
  setCurrentScreen: (screen: AppState['currentScreen']) => void;
  toggleCameraModal: (show?: boolean, mode?: 'camera' | 'gallery') => void;
  setPhotoProcessing: (processing: boolean) => void;
  updateUserPreferences: (
    prefs: Partial<
      Pick<AppState, 'defaultMealType' | 'enableNotifications' | 'preferredUnits' | 'theme'>
    >
  ) => void;
  setTheme: (theme: 'light' | 'dark' | 'system') => void;
  updateStatsCache: (stats: Omit<AppState['statsCache'], 'lastUpdated'>) => void;
  resetStats: () => void;
  resetToDefaults: () => void;
}

export const useAppStore = create<AppState>((set, get) => ({
  isInitialized: false,
  isOnline: true,
  currentScreen: 'home',
  showCameraModal: false,
  cameraMode: null,
  isPhotoProcessing: false,
  defaultMealType: null,
  enableNotifications: true,
  preferredUnits: 'metric',
  theme: 'system',
  statsCache: {
    totalMeals: 0,
    avgCalories: 0,
    avgHealthScore: 0,
    lastUpdated: null,
  },

  setInitialized: (initialized: boolean) => set({ isInitialized: initialized }),

  setOnlineStatus: (online: boolean) => set({ isOnline: online }),

  setCurrentScreen: (screen: AppState['currentScreen']) => set({ currentScreen: screen }),

  toggleCameraModal: (show?: boolean, mode?: 'camera' | 'gallery') => {
    const currentShow = get().showCameraModal;
    const newShow = show !== undefined ? show : !currentShow;
    set({
      showCameraModal: newShow,
      cameraMode: newShow ? mode || 'camera' : null,
    });
  },

  setPhotoProcessing: (processing: boolean) => set({ isPhotoProcessing: processing }),

  updateUserPreferences: (prefs) => set(prefs),

  setTheme: (theme: 'light' | 'dark' | 'system') => set({ theme }),

  updateStatsCache: (stats) =>
    set({
      statsCache: {
        ...stats,
        lastUpdated: new Date().toISOString(),
      },
    }),

  resetStats: () =>
    set({
      statsCache: {
        totalMeals: 0,
        avgCalories: 0,
        avgHealthScore: 0,
        lastUpdated: null,
      },
    }),

  resetToDefaults: () =>
    set({
      isInitialized: false,
      currentScreen: 'home',
      showCameraModal: false,
      cameraMode: null,
      isPhotoProcessing: false,
      defaultMealType: null,
      enableNotifications: true,
      preferredUnits: 'metric',
      statsCache: {
        totalMeals: 0,
        avgCalories: 0,
        avgHealthScore: 0,
        lastUpdated: null,
      },
    }),
}));