init

client/lib/core/providers/app_state_provider.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../../shared/providers/auth_provider.dart';
+import '../../shared/providers/vocabulary_provider.dart';
+import '../../shared/services/auth_service.dart';
+import '../../shared/services/vocabulary_service.dart';
+import '../network/api_client.dart';
+
+/// 全局应用状态管理
+class AppStateNotifier extends StateNotifier<AppState> {
+  AppStateNotifier() : super(const AppState());
+
+  void updateTheme(ThemeMode themeMode) {
+    state = state.copyWith(themeMode: themeMode);
+  }
+
+  void updateLocale(String locale) {
+    state = state.copyWith(locale: locale);
+  }
+
+  void updateNetworkStatus(bool isOnline) {
+    state = state.copyWith(isOnline: isOnline);
+  }
+
+  void updateLoading(bool isLoading) {
+    state = state.copyWith(isGlobalLoading: isLoading);
+  }
+}
+
+/// 应用状态模型
+class AppState {
+  final ThemeMode themeMode;
+  final String locale;
+  final bool isOnline;
+  final bool isGlobalLoading;
+
+  const AppState({
+    this.themeMode = ThemeMode.light,
+    this.locale = 'zh_CN',
+    this.isOnline = true,
+    this.isGlobalLoading = false,
+  });
+
+  AppState copyWith({
+    ThemeMode? themeMode,
+    String? locale,
+    bool? isOnline,
+    bool? isGlobalLoading,
+  }) {
+    return AppState(
+      themeMode: themeMode ?? this.themeMode,
+      locale: locale ?? this.locale,
+      isOnline: isOnline ?? this.isOnline,
+      isGlobalLoading: isGlobalLoading ?? this.isGlobalLoading,
+    );
+  }
+}
+
+/// 全局状态Provider
+final appStateProvider = StateNotifierProvider<AppStateNotifier, AppState>(
+  (ref) => AppStateNotifier(),
+);
+
+/// API客户端Provider
+final apiClientProvider = Provider<ApiClient>(
+  (ref) => ApiClient.instance,
+);
+
+/// 认证服务Provider
+final authServiceProvider = Provider<AuthService>(
+  (ref) => AuthService(),
+);
+
+/// 词汇服务Provider
+final vocabularyServiceProvider = Provider<VocabularyService>(
+  (ref) => VocabularyService(),
+);
+
+/// 认证Provider
+final authProvider = ChangeNotifierProvider<AuthProvider>(
+  (ref) {
+    final authService = ref.read(authServiceProvider);
+    return AuthProvider()..initialize();
+  },
+);
+
+/// 词汇Provider
+final vocabularyProvider = ChangeNotifierProvider<VocabularyProvider>(
+  (ref) {
+    final vocabularyService = ref.read(vocabularyServiceProvider);
+    return VocabularyProvider(vocabularyService);
+  },
+);
+
+/// 网络状态Provider
+final networkStatusProvider = StreamProvider<bool>(
+  (ref) async* {
+    // 这里可以实现网络状态监听
+    yield true; // 默认在线状态
+  },
+);
+
+/// 缓存管理Provider
+final cacheManagerProvider = Provider<CacheManager>(
+  (ref) => CacheManager(),
+);
+
+/// 缓存管理器
+class CacheManager {
+  final Map<String, dynamic> _cache = {};
+  final Map<String, DateTime> _cacheTimestamps = {};
+  final Duration _defaultCacheDuration = const Duration(minutes: 30);
+
+  /// 设置缓存
+  void set(String key, dynamic value, {Duration? duration}) {
+    _cache[key] = value;
+    _cacheTimestamps[key] = DateTime.now();
+  }
+
+  /// 获取缓存
+  T? get<T>(String key, {Duration? duration}) {
+    final timestamp = _cacheTimestamps[key];
+    if (timestamp == null) return null;
+
+    final cacheDuration = duration ?? _defaultCacheDuration;
+    if (DateTime.now().difference(timestamp) > cacheDuration) {
+      remove(key);
+      return null;
+    }
+
+    return _cache[key] as T?;
+  }
+
+  /// 移除缓存
+  void remove(String key) {
+    _cache.remove(key);
+    _cacheTimestamps.remove(key);
+  }
+
+  /// 清空缓存
+  void clear() {
+    _cache.clear();
+    _cacheTimestamps.clear();
+  }
+
+  /// 检查缓存是否存在且有效
+  bool isValid(String key, {Duration? duration}) {
+    final timestamp = _cacheTimestamps[key];
+    if (timestamp == null) return false;
+
+    final cacheDuration = duration ?? _defaultCacheDuration;
+    return DateTime.now().difference(timestamp) <= cacheDuration;
+  }
+}

client/lib/core/providers/providers.dart

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+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'app_state_provider.dart';
+import '../../shared/providers/network_provider.dart';
+import '../../shared/providers/error_provider.dart';
+import '../../features/auth/providers/auth_provider.dart' as auth;
+import '../../features/vocabulary/providers/vocabulary_provider.dart' as vocab;
+import '../../features/comprehensive_test/providers/test_riverpod_provider.dart' as test;
+
+/// 全局Provider配置
+class GlobalProviders {
+  static final List<Override> overrides = [
+    // 这里可以添加测试时的Provider覆盖
+  ];
+  
+  static final List<ProviderObserver> observers = [
+    ProviderLogger(),
+  ];
+
+  /// 获取所有核心Provider
+  static List<ProviderBase> get coreProviders => [
+    // 应用状态
+    appStateProvider,
+    networkProvider,
+    errorProvider,
+    
+    // 认证相关
+    auth.authProvider,
+    
+    // 词汇相关
+    vocab.vocabularyProvider,
+    
+    // 综合测试相关
+    test.testProvider,
+  ];
+  
+  /// 预加载Provider
+  static Future<void> preloadProviders(ProviderContainer container) async {
+    // 预加载网络状态
+    container.read(networkProvider.notifier).refreshNetworkStatus();
+    
+    // 认证状态会在AuthNotifier构造时自动检查
+    // 这里只需要读取provider来触发初始化
+    container.read(auth.authProvider);
+  }
+}
+
+/// Provider状态监听器
+class ProviderLogger extends ProviderObserver {
+  @override
+  void didUpdateProvider(
+    ProviderBase provider,
+    Object? previousValue,
+    Object? newValue,
+    ProviderContainer container,
+  ) {
+    print('Provider ${provider.name ?? provider.runtimeType} updated: $newValue');
+  }
+
+  @override
+  void didAddProvider(
+    ProviderBase provider,
+    Object? value,
+    ProviderContainer container,
+  ) {
+    print('Provider ${provider.name ?? provider.runtimeType} added: $value');
+  }
+
+  @override
+  void didDisposeProvider(
+    ProviderBase provider,
+    ProviderContainer container,
+  ) {
+    print('Provider ${provider.name ?? provider.runtimeType} disposed');
+  }
+
+  @override
+  void providerDidFail(
+    ProviderBase provider,
+    Object error,
+    StackTrace stackTrace,
+    ProviderContainer container,
+  ) {
+    print('Provider ${provider.name ?? provider.runtimeType} failed: $error');
+  }
+}