add

2026-10-15 20:36:59 +08:00
commit 6bf949949c
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+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../core/network/api_exception.dart';
+import '../models/membership_models.dart';
+import '../services/membership_service.dart';
+import '../services/user_service.dart';
+import 'auth_provider.dart';
+
+/// 会员中心状态
+class MemberState {
+  const MemberState({
+    this.plans = const [],
+    this.benefits = const [],
+    this.me,
+    this.isLoading = false,
+    this.loadFailed = false,
+    this.redeeming = false,
+  });
+
+  final List<MembershipPlan> plans;
+  final List<String> benefits;
+  final MyMemberState? me;
+  final bool isLoading;
+  final bool loadFailed;
+  final bool redeeming;
+
+  MemberState copyWith({
+    List<MembershipPlan>? plans,
+    List<String>? benefits,
+    MyMemberState? me,
+    bool? isLoading,
+    bool? loadFailed,
+    bool? redeeming,
+  }) =>
+      MemberState(
+        plans: plans ?? this.plans,
+        benefits: benefits ?? this.benefits,
+        me: me ?? this.me,
+        isLoading: isLoading ?? this.isLoading,
+        loadFailed: loadFailed ?? this.loadFailed,
+        redeeming: redeeming ?? this.redeeming,
+      );
+}
+
+/// 会员中心 Notifier：套餐列表 + 我的会员状态 + 积分开通
+class MemberNotifier extends StateNotifier<MemberState> {
+  MemberNotifier(this._ref) : super(const MemberState()) {
+    load();
+  }
+
+  final Ref _ref;
+
+  Future<void> load() async {
+    state = state.copyWith(isLoading: true, loadFailed: false);
+    try {
+      final plans = await MembershipService.fetchPlans();
+      MyMemberState? me;
+      // 游客无会员状态接口权限，未登录时跳过
+      if (_ref.read(authProvider).isLoggedIn) {
+        me = await MembershipService.fetchMe();
+      }
+      state = state.copyWith(
+        plans: plans.plans,
+        benefits: plans.benefits,
+        me: me,
+        isLoading: false,
+      );
+    } catch (_) {
+      state = state.copyWith(isLoading: false, loadFailed: true);
+    }
+  }
+
+  /// 积分开通会员。
+  /// 成功返回结果文案；失败抛 [ApiException] 由 UI 提示（2001 积分不足 / 2004 终身卡重复开通）。
+  Future<RedeemResult> redeem(String planCode) async {
+    state = state.copyWith(redeeming: true);
+    try {
+      final result = await MembershipService.redeem(planCode);
+      // 刷新我的会员状态 + 全局用户信息（积分/会员标识已变化）
+      final me = await MembershipService.fetchMe();
+      final user = await UserService.fetchMe();
+      state = state.copyWith(me: me, redeeming: false);
+      await _ref.read(authProvider.notifier).onLoginSuccess(user);
+      return result;
+    } catch (_) {
+      state = state.copyWith(redeeming: false);
+      rethrow;
+    }
+  }
+}
+
+final memberProvider = StateNotifierProvider<MemberNotifier, MemberState>(
+  MemberNotifier.new,
+);