51 lines
1.6 KiB
Dart
51 lines
1.6 KiB
Dart
import 'package:dio/dio.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/network/api_exception.dart';
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import '../core/network/dio_client.dart';
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import '../models/budget.dart';
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final budgetApiProvider = Provider<BudgetApi>((ref) => BudgetApi(ref.watch(dioProvider)));
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/// 预算接口（后端只提供当月预算）
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class BudgetApi {
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final Dio _dio;
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BudgetApi(this._dio);
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/// 获取当月预算。
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///
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/// 未设置预算时后端可能返回 204 / 空 body，此时返回 [BudgetInfo.empty]
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/// 而不是抛错——否则首页会因为"没设预算"而进入错误态。
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Future<BudgetInfo> getBudget() async {
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try {
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final res = await _dio.get('/budgets');
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return _parse(res.data);
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} on DioException catch (e) {
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final err = e.error;
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throw err is ApiException ? err : ApiException(-1, '预算加载失败');
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}
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}
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/// 设置/修改当月预算（每月生效，可随时修改）。
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/// 后端自动填充年月，amount 必须 >= 0。
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Future<BudgetInfo> setCurrentBudget(double amount) async {
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try {
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final res = await _dio.put('/budgets/current', data: {'amount': amount});
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return _parse(res.data);
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} on DioException catch (e) {
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final err = e.error;
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throw err is ApiException ? err : ApiException(-1, '预算保存失败');
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}
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}
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BudgetInfo _parse(Object? data) {
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if (data == null) return BudgetInfo.empty;
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if (data is Map<String, dynamic>) return BudgetInfo.fromJson(data);
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if (data is Map && data['data'] is Map) {
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return BudgetInfo.fromJson(Map<String, dynamic>.from(data['data'] as Map));
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}
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return BudgetInfo.empty;
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}
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}
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