68 lines
2.2 KiB
Dart
68 lines
2.2 KiB
Dart
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/network/api_client.dart';
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import '../core/storage/token_store.dart';
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import '../models/user_model.dart';
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import '../services/user_service.dart';
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/// 登录态：未登录 / 已登录（含用户信息）
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/// Token 本体在 TokenStore（安全存储 + 内存缓存），此处只持有用户模型与状态。
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class AuthState {
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const AuthState({this.user, this.restored = false});
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final UserModel? user;
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final bool restored; // 是否已完成启动恢复（避免启动期误跳登录）
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bool get isLoggedIn => user != null && TokenStore.hasToken;
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AuthState copyWith({UserModel? user, bool? restored}) => AuthState(
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user: user ?? this.user,
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restored: restored ?? this.restored,
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);
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}
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class AuthNotifier extends StateNotifier<AuthState> {
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AuthNotifier() : super(const AuthState(restored: false)) {
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// 会话过期（401 刷新失败）→ 清空登录态
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ApiClient.onSessionExpired = _onSessionExpired;
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}
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/// 启动恢复：读取安全存储中的 Token，有效则拉取用户信息
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Future<void> restore() async {
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await TokenStore.restore();
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if (!TokenStore.hasToken) {
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state = state.copyWith(restored: true);
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return;
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}
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try {
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final user = await UserService.fetchMe();
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state = AuthState(user: user, restored: true);
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} catch (_) {
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// Token 失效（1002 等）：本地清理，回游客态
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await TokenStore.clear();
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state = AuthState(restored: true);
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}
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}
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/// 登录/注册成功：Token 已由 AuthService 写入 TokenStore，此处仅刷新用户
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Future<void> onLoginSuccess(UserModel user) async {
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state = AuthState(user: user, restored: true);
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}
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/// 修改资料/头像后同步当前用户（不改变登录态与 Token）
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void updateUser(UserModel user) => state = state.copyWith(user: user);
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/// 退出登录：服务端注销 + 本地清理
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Future<void> logout() async => _onSessionExpired();
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Future<void> _onSessionExpired() async {
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await TokenStore.clear();
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state = AuthState(restored: true);
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}
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}
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/// 全局登录态 Provider
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final authProvider = StateNotifierProvider<AuthNotifier, AuthState>((ref) {
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return AuthNotifier();
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});
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