53 lines
1.7 KiB
Dart
53 lines
1.7 KiB
Dart
import '../utils/date_util.dart';
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import 'json_util.dart';
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/// 账单（对应后端 BillResponse）
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///
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/// 注意：amount 后端恒返回正数，收支方向看 [type]。
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class Bill {
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final int id;
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final int categoryId;
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final String categoryName;
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final String categoryIcon;
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final double amount;
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final String description;
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final String billDate; // yyyy-MM-dd
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final String? imageUrl;
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final int type; // 1=支出 2=收入
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final String? createTime;
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final String? updateTime;
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const Bill({
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required this.id,
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required this.categoryId,
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required this.categoryName,
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required this.categoryIcon,
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required this.amount,
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required this.description,
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required this.billDate,
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this.imageUrl,
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required this.type,
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this.createTime,
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this.updateTime,
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});
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bool get isExpense => type == 1;
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double get absAmount => amount.abs();
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factory Bill.fromJson(Map<String, dynamic> json) => Bill(
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id: asInt(json['id']),
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categoryId: asInt(json['categoryId']),
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categoryName: asNonEmpty(json['categoryName'], '未分类'),
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categoryIcon: asNonEmpty(json['categoryIcon'], '📦'),
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amount: asDouble(json['amount']),
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description: asString(json['description']),
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billDate: parseBillDate(asString(json['billDate'])),
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imageUrl: json['imageUrl'] == null ? null : asString(json['imageUrl']),
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// 后端可能返回 null，缺省按支出处理
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type: asInt(json['type'], fallback: 1) == 2 ? 2 : 1,
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createTime: json['createTime'] == null ? null : asString(json['createTime']),
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updateTime: json['updateTime'] == null ? null : asString(json['updateTime']),
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);
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}
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