create project

2026-05-19 11:46:42 +08:00
commit dcdf1f60b1
60 changed files with 9309 additions and 0 deletions
--- a/frontend/lib/providers/auth_provider.dart
+++ b/frontend/lib/providers/auth_provider.dart
@@ -0,0 +1,113 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../api/api_client.dart';
+import '../api/auth_api.dart';
+import '../models/user.dart';
+
+final apiClientProvider = Provider<ApiClient>((ref) => ApiClient());
+
+final authApiProvider = Provider<AuthApi>((ref) {
+  return AuthApi(ref.read(apiClientProvider));
+});
+
+class AuthState {
+  final bool isLoggedIn;
+  final User? user;
+  final String? token;
+  final bool isLoading;
+  final String? error;
+
+  const AuthState({
+    this.isLoggedIn = false,
+    this.user,
+    this.token,
+    this.isLoading = false,
+    this.error,
+  });
+
+  AuthState copyWith({
+    bool? isLoggedIn,
+    User? user,
+    String? token,
+    bool? isLoading,
+    String? error,
+  }) {
+    return AuthState(
+      isLoggedIn: isLoggedIn ?? this.isLoggedIn,
+      user: user ?? this.user,
+      token: token ?? this.token,
+      isLoading: isLoading ?? this.isLoading,
+      error: error ?? this.error,
+    );
+  }
+}
+
+class AuthNotifier extends StateNotifier<AuthState> {
+  final AuthApi _api;
+  final ApiClient _client;
+
+  AuthNotifier(this._api, this._client) : super(const AuthState());
+
+  Future<void> login(String phone, String password) async {
+    state = state.copyWith(isLoading: true, error: null);
+    try {
+      final res = await _api.login(phone, password);
+      if (res['success'] == true) {
+        final token = res['data']['token'] as String;
+        final user = User.fromJson(res['data']['user']);
+        await _client.saveToken(token);
+        state = AuthState(isLoggedIn: true, user: user, token: token);
+      } else {
+        state = state.copyWith(isLoading: false, error: res['error'] as String?);
+      }
+    } catch (e) {
+      state = state.copyWith(isLoading: false, error: '网络错误: $e');
+    }
+  }
+
+  Future<void> register(String phone, String password, String nickname) async {
+    state = state.copyWith(isLoading: true, error: null);
+    try {
+      final res = await _api.register(phone, password, nickname);
+      if (res['success'] == true) {
+        final token = res['data']['token'] as String;
+        final user = User.fromJson(res['data']['user']);
+        await _client.saveToken(token);
+        state = AuthState(isLoggedIn: true, user: user, token: token);
+      } else {
+        state = state.copyWith(isLoading: false, error: res['error'] as String?);
+      }
+    } catch (e) {
+      state = state.copyWith(isLoading: false, error: '网络错误: $e');
+    }
+  }
+
+  Future<void> logout() async {
+    await _client.clearToken();
+    state = const AuthState();
+  }
+
+  Future<void> restoreSession() async {
+    final token = await _client.getToken();
+    if (token == null) return;
+    try {
+      final res = await _api.getProfile();
+      if (res['success'] == true) {
+        state = AuthState(isLoggedIn: true, user: User.fromJson(res['data']), token: token);
+      } else {
+        await _client.clearToken();
+      }
+    } catch (_) {
+      // offline - keep token for retry
+    }
+  }
+
+  void clearError() {
+    state = state.copyWith(error: null);
+  }
+}
+
+final authProvider = StateNotifierProvider<AuthNotifier, AuthState>((ref) {
+  final api = ref.read(authApiProvider);
+  final client = ref.read(apiClientProvider);
+  return AuthNotifier(api, client);
+});