add

2026-10-15 20:36:59 +08:00
commit 6bf949949c
7923 changed files with 1369582 additions and 0 deletions
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+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../services/wallet_service.dart';
+
+/// 钱包状态：钱包信息 + 积分明细（biz_type 筛选 + 触底分页）
+class WalletState {
+  const WalletState({
+    this.wallet,
+    this.records = const [],
+    this.recordsTotal = 0,
+    this.bizType,
+    this.isLoading = false,
+    this.loadFailed = false,
+    this.loadingMore = false,
+  });
+
+  final WalletInfo? wallet;
+  final List<PointsRecord> records;
+  final int recordsTotal;
+
+  /// null = 全部
+  final int? bizType;
+  final bool isLoading;
+  final bool loadFailed;
+  final bool loadingMore;
+
+  bool get hasMore => records.length < recordsTotal;
+
+  WalletState copyWith({
+    WalletInfo? wallet,
+    List<PointsRecord>? records,
+    int? recordsTotal,
+    int? Function()? bizType,
+    bool? isLoading,
+    bool? loadFailed,
+    bool? loadingMore,
+  }) =>
+      WalletState(
+        wallet: wallet ?? this.wallet,
+        records: records ?? this.records,
+        recordsTotal: recordsTotal ?? this.recordsTotal,
+        bizType: bizType != null ? bizType() : this.bizType,
+        isLoading: isLoading ?? this.isLoading,
+        loadFailed: loadFailed ?? this.loadFailed,
+        loadingMore: loadingMore ?? this.loadingMore,
+      );
+}
+
+class WalletNotifier extends StateNotifier<WalletState> {
+  WalletNotifier() : super(const WalletState()) {
+    load();
+  }
+
+  static const _pageSize = 20;
+
+  Future<void> load() async {
+    state = state.copyWith(isLoading: true, loadFailed: false);
+    try {
+      final wallet = await WalletService.fetchWallet();
+      final page = await WalletService.fetchPointsRecords(
+        page: 1,
+        pageSize: _pageSize,
+        bizType: state.bizType,
+      );
+      state = state.copyWith(
+        wallet: wallet,
+        records: page.items,
+        recordsTotal: page.total,
+        isLoading: false,
+      );
+    } catch (_) {
+      state = state.copyWith(isLoading: false, loadFailed: true);
+    }
+  }
+
+  /// 切换 biz_type 筛选并重载明细
+  Future<void> setBizType(int? bizType) async {
+    if (bizType == state.bizType) return;
+    state = state.copyWith(bizType: () => bizType);
+    await load();
+  }
+
+  /// 触底加载下一页
+  Future<void> loadMore() async {
+    if (state.loadingMore || !state.hasMore || state.isLoading) return;
+    state = state.copyWith(loadingMore: true);
+    try {
+      final page = await WalletService.fetchPointsRecords(
+        page: state.records.length ~/ _pageSize + 1,
+        pageSize: _pageSize,
+        bizType: state.bizType,
+      );
+      state = state.copyWith(
+        records: [...state.records, ...page.items],
+        recordsTotal: page.total,
+        loadingMore: false,
+      );
+    } catch (_) {
+      state = state.copyWith(loadingMore: false);
+    }
+  }
+}
+
+final walletProvider = StateNotifierProvider<WalletNotifier, WalletState>(
+  (_) => WalletNotifier(),
+);