import '../datasources/local/shared_prefs.dart';
import '../models/user.dart';
import '../models/auth/login_request.dart';
import '../models/auth/register_request.dart';
import '../models/api_response.dart';

class AuthRepository {
  final SharedPrefs localDataSource;

  AuthRepository({required this.localDataSource});

  // 模拟登录
  Future<ApiResponse<User>> login(LoginRequest request) async {
    await Future.delayed(const Duration(seconds: 1));
    
    // 模拟成功登录
    if (request.email == 'test@example.com' && request.password == '123456') {
      final user = User(
        id: '1',
        email: request.email,
        name: '测试用户',
        avatarUrl: 'https://ui-avatars.com/api/?name=测试用户',
        phone: '13800138000',
        createdAt: DateTime.now(),
      );
      
      // 保存token和用户数据
      await localDataSource.setAuthToken('mock_jwt_token_${user.id}');
      await localDataSource.setUserData(user.toJson().toString());
      
      return ApiResponse<User>(
        success: true,
        message: '登录成功',
        data: user,
      );
    } else {
      return ApiResponse<User>(
        success: false,
        message: '邮箱或密码错误',
      );
    }
  }

  // 模拟注册
  Future<ApiResponse<User>> register(RegisterRequest request) async {
    await Future.delayed(const Duration(seconds: 1));
    
    final user = User(
      id: DateTime.now().millisecondsSinceEpoch.toString(),
      email: request.email,
      name: request.name,
      phone: request.phone,
      createdAt: DateTime.now(),
    );
    
    // 保存token和用户数据
    await localDataSource.setAuthToken('mock_jwt_token_${user.id}');
    await localDataSource.setUserData(user.toJson().toString());
    
    return ApiResponse<User>(
      success: true,
      message: '注册成功',
      data: user,
    );
  }

  // 检查登录状态
  Future<bool> isLoggedIn() async {
    final token = localDataSource.getAuthToken();
    return token != null && token.isNotEmpty;
  }

  // 获取当前用户
  Future<User?> getCurrentUser() async {
    final userData = localDataSource.getUserData();
    if (userData != null) {
      try {
        // 这里简单处理，实际应该解析JSON
        return User(
          id: '1',
          email: 'test@example.com',
          name: '测试用户',
        );
      } catch (e) {
        return null;
      }
    }
    return null;
  }

  // 注销
  Future<bool> logout() async {
    await localDataSource.removeAuthToken();
    await localDataSource.removeUserData();
    return true;
  }
}