import 'package:flutter_riverpod/flutter_riverpod.dart';

import 'package:im_app/app/di/network_provider.dart';
import 'package:im_app/app/di/db_provider.dart';
import 'package:im_app/core/services/socket_manager.dart';
import 'package:im_app/features/login/di/auth_providers.dart';
import 'package:im_app/features/settings/usecases/set_theme_usecase.dart';
import 'package:im_app/features/settings/usecases/fetch_profile_usecase.dart';
import 'package:im_app/features/settings/usecases/logout_usecase.dart';
import 'package:im_app/features/settings/usecases/update_profile_usecase.dart';

/// Settings feature DI 装配
///
/// ```
/// SettingsViewModel
///   → fetchProfileUseCaseProvider  → GET /app/api/user/profile
///   → logoutUseCaseProvider        → POST /app/api/auth/logout + WS + DB
///
/// EditProfileViewModel
///   → updateProfileUseCaseProvider → POST /app/api/user/update-profile
///
/// ThemeViewModel
///   → setThemeUseCaseProvider      → ThemeModeNotifier（内存 + 持久化 TODO）
/// ```

// ── Theme ─────────────────────────────────────────────────────────────────────

/// 设置主题用例 Provider
final setThemeUseCaseProvider = Provider<SetThemeUseCase>(
  (_) => const SetThemeUseCase(),
);

// ── Profile ────────────────────────────────────────────────────────────────────

/// 获取当前用户资料用例 Provider
final fetchProfileUseCaseProvider = Provider<FetchProfileUseCase>((ref) {
  return FetchProfileUseCase(client: ref.read(networkSdkApiProvider));
});

/// 更新用户资料用例 Provider
final updateProfileUseCaseProvider = Provider<UpdateProfileUseCase>((ref) {
  return UpdateProfileUseCase(client: ref.read(networkSdkApiProvider));
});

// ── Auth ───────────────────────────────────────────────────────────────────────

/// 退出登录用例 Provider
final logoutUseCaseProvider = Provider<LogoutUseCase>((ref) {
  return LogoutUseCase(
    authRepository: ref.read(authRepositoryProvider),
    socketManager: ref.read(socketManagerProvider),
    storageApi: ref.read(storageSdkProvider),
  );
});