first commit

2026-09-21 17:37:53 +08:00
commit 67d4dd5b7c
141 changed files with 8558 additions and 0 deletions
@@ -0,0 +1,151 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../api/bill_api.dart';
+import '../core/network/api_exception.dart';
+import '../models/bill_request.dart';
+import '../utils/date_util.dart';
+import 'bill_refresh.dart';
+
+/// 账单编辑页的表单状态
+class BillEditState {
+  final bool loading; // 详情加载中
+  final String? loadError; // 详情加载失败提示
+  final int type; // 1=支出 2=收入
+  final int? categoryId;
+  final double? amount;
+  final String billDate; // yyyy-MM-dd
+  final String description;
+  final bool submitting;
+  final int revision; // 服务端数据回填时 +1，供页面同步非受控输入框
+
+  const BillEditState({
+    this.loading = false,
+    this.loadError,
+    this.type = 1,
+    this.categoryId,
+    this.amount,
+    required this.billDate,
+    this.description = '',
+    this.submitting = false,
+    this.revision = 0,
+  });
+
+  BillEditState copyWith({
+    bool? loading,
+    Object? loadError = _sentinel,
+    int? type,
+    int? categoryId,
+    Object? amount = _sentinel,
+    String? billDate,
+    String? description,
+    bool? submitting,
+    int? revision,
+  }) {
+    return BillEditState(
+      loading: loading ?? this.loading,
+      loadError: loadError == _sentinel ? this.loadError : loadError as String?,
+      type: type ?? this.type,
+      categoryId: categoryId ?? this.categoryId,
+      amount: amount == _sentinel ? this.amount : amount as double?,
+      billDate: billDate ?? this.billDate,
+      description: description ?? this.description,
+      submitting: submitting ?? this.submitting,
+      revision: revision ?? this.revision,
+    );
+  }
+
+  static const _sentinel = Object();
+}
+
+class BillEditNotifier extends Notifier<BillEditState> {
+  BillEditNotifier(this.billId);
+
+  final int billId;
+
+  @override
+  BillEditState build() {
+    _load();
+    return BillEditState(billDate: formatDate(DateTime.now()), loading: true);
+  }
+
+  Future<void> _load() async {
+    try {
+      final bill = await ref.read(billApiProvider).getBill(billId);
+      if (!ref.mounted) return;
+      state = BillEditState(
+        type: bill.type,
+        categoryId: bill.categoryId,
+        amount: bill.absAmount,
+        billDate: bill.billDate,
+        description: bill.description,
+        revision: state.revision + 1,
+      );
+    } on ApiException catch (e) {
+      if (!ref.mounted) return;
+      state = state.copyWith(loading: false, loadError: e.message);
+    } catch (_) {
+      if (!ref.mounted) return;
+      state = state.copyWith(loading: false, loadError: '账单加载失败');
+    }
+  }
+
+  /// 重新加载（错误重试用）
+  void reload() {
+    state = state.copyWith(loading: true, loadError: null);
+    _load();
+  }
+
+  void setType(int type) {
+    if (type == state.type) return;
+    // 切换收支后分类需重选（与记账页行为一致）
+    state = state.copyWith(type: type, categoryId: null);
+  }
+
+  void setCategory(int id) => state = state.copyWith(categoryId: id);
+
+  void setAmount(double? value) => state = state.copyWith(amount: value);
+
+  void setDate(String date) => state = state.copyWith(billDate: date);
+
+  void setDescription(String desc) => state = state.copyWith(description: desc);
+
+  /// 保存：必须回传全部字段，否则后端会把 description 覆盖成 null
+  Future<void> save() async {
+    final s = state;
+    if (s.categoryId == null) throw ApiException(-1, '请选择分类');
+    if (s.amount == null || s.amount! <= 0) throw ApiException(-1, '请输入有效金额');
+
+    state = state.copyWith(submitting: true);
+    try {
+      await ref.read(billApiProvider).updateBill(
+            billId,
+            BillRequest(
+              categoryId: s.categoryId!,
+              amount: s.amount!,
+              description: s.description,
+              billDate: s.billDate,
+              type: s.type,
+            ),
+          );
+      if (!ref.mounted) return;
+      invalidateBillData(ref);
+    } finally {
+      if (ref.mounted) state = state.copyWith(submitting: false);
+    }
+  }
+
+  /// 删除该账单
+  Future<void> remove() async {
+    state = state.copyWith(submitting: true);
+    try {
+      await ref.read(billApiProvider).deleteBill(billId);
+      if (!ref.mounted) return;
+      invalidateBillData(ref);
+    } finally {
+      if (ref.mounted) state = state.copyWith(submitting: false);
+    }
+  }
+}
+
+final billEditProvider = NotifierProvider.autoDispose
+    .family<BillEditNotifier, BillEditState, int>(BillEditNotifier.new);