55 lines
1.5 KiB
Dart
55 lines
1.5 KiB
Dart
import 'json_util.dart';
|
|
|
|
/// 预算信息（对应后端 BudgetResponse，仅当月有效）
|
|
class BudgetInfo {
|
|
final int? id;
|
|
final int? year;
|
|
final int? month;
|
|
final double amount; // 预算总额
|
|
final double usedAmount; // 已用
|
|
final double remainingAmount; // 剩余
|
|
final double remainingDaily; // 日均可用
|
|
|
|
const BudgetInfo({
|
|
this.id,
|
|
this.year,
|
|
this.month,
|
|
required this.amount,
|
|
required this.usedAmount,
|
|
required this.remainingAmount,
|
|
required this.remainingDaily,
|
|
});
|
|
|
|
bool get hasBudget => amount > 0;
|
|
|
|
bool get isOverBudget => amount > 0 && usedAmount > amount;
|
|
|
|
/// 已用占比（0~1），未设预算时为 0
|
|
double get usedRatio {
|
|
if (amount <= 0 || !usedAmount.isFinite) return 0;
|
|
return (usedAmount / amount).clamp(0.0, 1.0);
|
|
}
|
|
|
|
factory BudgetInfo.fromJson(Map<String, dynamic> json) {
|
|
final amount = asDouble(json['amount']);
|
|
final used = asDouble(json['usedAmount']);
|
|
return BudgetInfo(
|
|
id: json['id'] == null ? null : asInt(json['id']),
|
|
year: json['year'] == null ? null : asInt(json['year']),
|
|
month: json['month'] == null ? null : asInt(json['month']),
|
|
amount: amount,
|
|
usedAmount: used,
|
|
remainingAmount:
|
|
json['remainingAmount'] == null ? amount - used : asDouble(json['remainingAmount']),
|
|
remainingDaily: asDouble(json['remainingDaily']),
|
|
);
|
|
}
|
|
|
|
static const empty = BudgetInfo(
|
|
amount: 0,
|
|
usedAmount: 0,
|
|
remainingAmount: 0,
|
|
remainingDaily: 0,
|
|
);
|
|
}
|