import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_localizations/flutter_localizations.dart'; // Localization
import 'package:hive_flutter/hive_flutter.dart';
import 'models/sake_item.dart';
import 'models/user_profile.dart';
import 'models/menu_settings.dart';
import 'providers/theme_provider.dart';
import 'screens/main_screen.dart';
import 'screens/license_screen.dart';
import 'services/migration_service.dart';

/// ビルド時Pro解放フラグ（現在未使用 — 実行時ライセンスはisProProviderで管理）
/// 将来的に削除予定。isProProvider (license_provider.dart) を使うこと。
const bool isProVersion = bool.fromEnvironment('IS_PRO_VERSION', defaultValue: false);

/// 店舗向けビルドかどうかを判定するビルド時フラグ
///
/// ビルドコマンド:
/// - 消費者向け: flutter build apk --release --dart-define=IS_BUSINESS_APP=false
/// - 店舗向け:   flutter build apk --release --dart-define=IS_BUSINESS_APP=true
///
/// デフォルトはfalse（消費者向け）
const bool isBusinessApp = bool.fromEnvironment('IS_BUSINESS_APP', defaultValue: false);

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  await Hive.initFlutter();

  Hive.registerAdapter(SakeItemAdapter());
  Hive.registerAdapter(UserProfileAdapter());
  Hive.registerAdapter(MenuSettingsAdapter());
  Hive.registerAdapter(DisplayDataAdapter());
  Hive.registerAdapter(HiddenSpecsAdapter());
  Hive.registerAdapter(UserDataAdapter());
  Hive.registerAdapter(GamificationAdapter());
  Hive.registerAdapter(MetadataAdapter());
  Hive.registerAdapter(ItemTypeAdapter()); // Restored missing adapter
  // Open all boxes first (faster to open them together)
  // Reverted to synchronous wait to ensure Providers have data immediately
  // Open all boxes in parallel (Much faster than sequential)
  await Future.wait([
    Hive.openBox('settings'),
    Hive.openBox<UserProfile>('user_profile'),
    Hive.openBox<SakeItem>('sake_items'),
    Hive.openBox<MenuSettings>('menu_settings'),
  ]);

  // Migration — バージョン番号で管理（単一フラグだと将来の追加マイグレーションが走らないため）
  // migration_completed=true の旧ユーザーはバージョン 1 扱いとして互換性を維持する
  const int currentMigrationVersion = 1;
  final box = Hive.box('settings');
  final legacyCompleted = box.get('migration_completed', defaultValue: false) as bool;
  final storedVersion = legacyCompleted
      ? box.get('migration_version', defaultValue: 1) as int  // 旧ユーザー: 既に完了済み=v1
      : box.get('migration_version', defaultValue: 0) as int; // 新規ユーザー: 未実行=v0

  if (storedVersion < currentMigrationVersion) {
    debugPrint('🚀 Running MigrationService (v$storedVersion → v$currentMigrationVersion)...');
    await MigrationService.runMigration();
    await box.put('migration_version', currentMigrationVersion);
    await box.put('migration_completed', true); // 旧フラグも維持（後方互換）
  } else {
    debugPrint('✅ Migration up to date (v$storedVersion). Skipping.');
  }

  // ✅ AI解析キャッシュは使うときに初期化する（Lazy initialization）
  // AnalysisCacheService.init()はサービス内でLazy実装されているため、
  // ここで呼び出すと起動が遅くなる。必要なときに自動初期化される。

  runApp(
    const ProviderScope(
      child: MyApp(),
    ),
  );
}

class MyApp extends ConsumerWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final lightTheme = ref.watch(lightThemeProvider);
    final darkTheme = ref.watch(darkThemeProvider);
    final themeMode = ref.watch(themeModeProvider);
    final locale = ref.watch(localeProvider); // NEW: User-selected locale

    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Ponshu Room Lite',
      theme: lightTheme,
      darkTheme: darkTheme,
      themeMode: themeMode,
      locale: locale, // NEW: Apply user's locale choice

       // Localization (UPDATED)
      localizationsDelegates: const [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: const [
        Locale('ja'),
        Locale('en'),
      ],

      navigatorObservers: [routeObserver],
      home: const MainScreen(),
      routes: {
        '/upgrade': (context) => const LicenseScreen(),
      },
    );
  }
}

// Global RouteObserver
final RouteObserver<ModalRoute<void>> routeObserver = RouteObserver<ModalRoute<void>>();