96 lines
2.9 KiB
Dart
96 lines
2.9 KiB
Dart
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/network/api_exception.dart';
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import '../models/membership_models.dart';
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import '../services/membership_service.dart';
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import '../services/user_service.dart';
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import 'auth_provider.dart';
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/// 会员中心状态
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class MemberState {
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const MemberState({
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this.plans = const [],
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this.benefits = const [],
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this.me,
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this.isLoading = false,
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this.loadFailed = false,
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this.redeeming = false,
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});
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final List<MembershipPlan> plans;
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final List<String> benefits;
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final MyMemberState? me;
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final bool isLoading;
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final bool loadFailed;
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final bool redeeming;
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MemberState copyWith({
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List<MembershipPlan>? plans,
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List<String>? benefits,
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MyMemberState? me,
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bool? isLoading,
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bool? loadFailed,
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bool? redeeming,
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}) =>
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MemberState(
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plans: plans ?? this.plans,
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benefits: benefits ?? this.benefits,
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me: me ?? this.me,
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isLoading: isLoading ?? this.isLoading,
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loadFailed: loadFailed ?? this.loadFailed,
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redeeming: redeeming ?? this.redeeming,
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);
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}
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/// 会员中心 Notifier：套餐列表 + 我的会员状态 + 积分开通
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class MemberNotifier extends StateNotifier<MemberState> {
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MemberNotifier(this._ref) : super(const MemberState()) {
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load();
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}
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final Ref _ref;
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Future<void> load() async {
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state = state.copyWith(isLoading: true, loadFailed: false);
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try {
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final plans = await MembershipService.fetchPlans();
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MyMemberState? me;
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// 游客无会员状态接口权限，未登录时跳过
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if (_ref.read(authProvider).isLoggedIn) {
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me = await MembershipService.fetchMe();
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}
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state = state.copyWith(
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plans: plans.plans,
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benefits: plans.benefits,
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me: me,
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isLoading: false,
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);
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} catch (_) {
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state = state.copyWith(isLoading: false, loadFailed: true);
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}
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}
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/// 积分开通会员。
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/// 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）。
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Future<RedeemResult> redeem(String planCode) async {
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state = state.copyWith(redeeming: true);
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try {
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final result = await MembershipService.redeem(planCode);
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// 刷新我的会员状态 + 全局用户信息（积分/会员标识已变化）
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final me = await MembershipService.fetchMe();
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final user = await UserService.fetchMe();
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state = state.copyWith(me: me, redeeming: false);
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await _ref.read(authProvider.notifier).onLoginSuccess(user);
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return result;
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} catch (_) {
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state = state.copyWith(redeeming: false);
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rethrow;
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}
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}
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}
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/// autoDispose：进入会员页时创建并加载，离开即销毁；登录态变化后自动取最新
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final memberProvider = StateNotifierProvider.autoDispose<MemberNotifier, MemberState>(
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MemberNotifier.new,
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);
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