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312
client/lib/features/auth/providers/auth_provider.dart
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312
client/lib/features/auth/providers/auth_provider.dart
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/models/user_model.dart';
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import '../../../core/services/auth_service.dart';
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import '../../../core/services/storage_service.dart';
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import '../../../core/network/api_client.dart';
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import '../../../core/errors/app_exception.dart';
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/// 认证状态
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class AuthState {
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final User? user;
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final bool isAuthenticated;
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final bool isLoading;
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final String? error;
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const AuthState({
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this.user,
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this.isAuthenticated = false,
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this.isLoading = false,
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this.error,
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});
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AuthState copyWith({
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User? user,
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bool? isAuthenticated,
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bool? isLoading,
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String? error,
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}) {
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return AuthState(
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user: user ?? this.user,
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isAuthenticated: isAuthenticated ?? this.isAuthenticated,
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isLoading: isLoading ?? this.isLoading,
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error: error,
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);
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}
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}
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/// 认证状态管理器
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class AuthNotifier extends StateNotifier<AuthState> {
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final AuthService _authService;
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final StorageService _storageService;
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AuthNotifier(this._authService, this._storageService) : super(const AuthState()) {
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_checkAuthStatus();
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}
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/// 检查认证状态
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Future<void> _checkAuthStatus() async {
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try {
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final token = await _storageService.getToken();
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if (token != null && token.isNotEmpty) {
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// 获取真实用户信息
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try {
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final user = await _authService.getUserInfo();
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state = state.copyWith(
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user: user,
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isAuthenticated: true,
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);
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} catch (e) {
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// Token可能已过期，清除token
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await _storageService.clearTokens();
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}
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}
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} catch (e) {
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// 忽略错误，保持未认证状态
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}
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}
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/// 登录
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Future<void> login({
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required String account, // 用户名或邮箱
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required String password,
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bool rememberMe = false,
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}) async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 调用真实API
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final authResponse = await _authService.login(
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account: account,
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password: password,
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rememberMe: rememberMe,
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);
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// 保存token
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await _storageService.saveToken(authResponse.token);
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if (rememberMe && authResponse.refreshToken != null) {
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await _storageService.saveRefreshToken(authResponse.refreshToken!);
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}
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// 更新状态
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state = state.copyWith(
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user: authResponse.user,
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isAuthenticated: true,
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isLoading: false,
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);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 注册
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Future<void> register({
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required String email,
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required String password,
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required String username,
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required String nickname,
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}) async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 调用真实API
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final authResponse = await _authService.register(
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email: email,
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password: password,
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username: username,
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nickname: nickname,
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);
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// 保存token
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await _storageService.saveToken(authResponse.token);
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if (authResponse.refreshToken != null) {
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await _storageService.saveRefreshToken(authResponse.refreshToken!);
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}
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// 更新状态
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state = state.copyWith(
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user: authResponse.user,
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isAuthenticated: true,
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isLoading: false,
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);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 登出
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Future<void> logout() async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 模拟网络延迟
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await Future.delayed(const Duration(milliseconds: 500));
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await _storageService.clearTokens();
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state = const AuthState();
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 忘记密码
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Future<void> forgotPassword(String email) async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 模拟网络延迟
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await Future.delayed(const Duration(milliseconds: 1000));
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if (email.isEmpty) {
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throw Exception('邮箱地址不能为空');
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}
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// 模拟发送重置邮件成功
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state = state.copyWith(isLoading: false);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 重置密码
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Future<void> resetPassword({
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required String token,
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required String newPassword,
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}) async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 模拟网络延迟
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await Future.delayed(const Duration(milliseconds: 1000));
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if (newPassword.length < 6) {
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throw Exception('密码长度不能少于6位');
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}
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state = state.copyWith(isLoading: false);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 更新用户信息
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Future<void> updateProfile({
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String? username,
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String? email,
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String? phone,
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String? avatar,
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}) async {
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if (state.user == null) return;
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 模拟网络延迟
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await Future.delayed(const Duration(milliseconds: 1000));
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final updatedUser = state.user!.copyWith(
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username: username ?? state.user!.username,
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email: email ?? state.user!.email,
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phone: phone ?? state.user!.phone,
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avatar: avatar ?? state.user!.avatar,
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updatedAt: DateTime.now(),
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);
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state = state.copyWith(
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user: updatedUser,
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isLoading: false,
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);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 修改密码
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Future<void> changePassword({
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required String currentPassword,
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required String newPassword,
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}) async {
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state = state.copyWith(isLoading: true, error: null);
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try {
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// 模拟网络延迟
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await Future.delayed(const Duration(milliseconds: 1000));
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if (currentPassword.isEmpty || newPassword.isEmpty) {
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throw Exception('当前密码和新密码不能为空');
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}
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if (newPassword.length < 6) {
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throw Exception('新密码长度不能少于6位');
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}
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state = state.copyWith(isLoading: false);
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} catch (e) {
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state = state.copyWith(
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isLoading: false,
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error: e.toString(),
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);
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rethrow;
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}
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}
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/// 清除错误
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void clearError() {
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state = state.copyWith(error: null);
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}
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}
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/// 认证服务提供者
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final authServiceProvider = Provider<AuthService>((ref) {
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return AuthService(ApiClient.instance);
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});
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/// 存储服务提供者 - 改为同步Provider，因为StorageService已在main中初始化
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final storageServiceProvider = Provider<StorageService>((ref) {
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// StorageService已经在main.dart中初始化，直接获取实例
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// 这里使用一个技巧：通过Future.value包装已初始化的实例
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throw UnimplementedError('Use storageServiceInstanceProvider instead');
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});
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/// 认证状态提供者 - 改为StateNotifierProvider以保持状态
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final authProvider = StateNotifierProvider<AuthNotifier, AuthState>((ref) {
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final authService = ref.watch(authServiceProvider);
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// 直接使用已初始化的StorageService实例
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final storageService = StorageService.instance;
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return AuthNotifier(authService, storageService);
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});
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/// 是否已认证的提供者
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final isAuthenticatedProvider = Provider<bool>((ref) {
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return ref.watch(authProvider).isAuthenticated;
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});
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/// 当前用户提供者
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final currentUserProvider = Provider<User?>((ref) {
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return ref.watch(authProvider).user;
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});
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