133 lines
4.4 KiB
Dart
133 lines
4.4 KiB
Dart
// 功能描述：充值配置、创建结果和入账事实的严格类型；版本：1.0.0。
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import 'client_models.dart';
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int rechargeCents(Object? value) {
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if (value is! int || value < 0) throw const FormatException('充值金额格式异常');
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return value;
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}
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/// 十进制文本直接转换为分，禁止浮点舍入、指数或负数。
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int? parseRechargeAmount(String value) {
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final text = value.trim();
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if (!RegExp(r'^\d{1,9}(\.\d{1,2})?$').hasMatch(text)) return null;
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final parts = text.split('.');
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return int.parse(parts[0]) * 100 + (parts.length == 1 ? 0 : int.parse(parts[1].padRight(2, '0')));
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}
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class RechargeOptions {
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const RechargeOptions({
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required this.min,
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required this.max,
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required this.channels,
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this.agreement,
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});
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final int min, max;
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final List<RechargeChannel> channels;
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final RechargeAgreement? agreement;
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factory RechargeOptions.fromJson(Map<String, Object?> json) {
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final min = rechargeCents(json['min_amount']), max = rechargeCents(json['max_amount']);
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if (min < 1 || max < min || json['channels'] is! List) throw const FormatException('充值配置异常');
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return RechargeOptions(
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min: min,
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max: max,
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channels: [
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for (final item in json['channels'] as List)
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RechargeChannel.fromJson(Map<String, Object?>.from(item as Map)),
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],
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agreement: json['agreement'] == null
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? null
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: RechargeAgreement.fromJson(Map<String, Object?>.from(json['agreement'] as Map)),
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);
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}
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}
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class RechargeChannel {
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const RechargeChannel(this.name, {required this.app, required this.wap});
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final String name;
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final bool app, wap;
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String get title => name == 'wechat' ? '微信支付' : '支付宝';
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factory RechargeChannel.fromJson(Map<String, Object?> json) {
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if (!['wechat', 'alipay'].contains(json['channel']) ||
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json['app'] is! bool ||
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json['wap'] is! bool) {
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throw const FormatException('支付方式异常');
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}
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return RechargeChannel(
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json['channel'] as String,
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app: json['app'] as bool,
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wap: json['wap'] as bool,
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);
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}
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}
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class RechargeAgreement {
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const RechargeAgreement(this.identity, this.version, this.title, this.body);
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final String identity, title, body;
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final int version;
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factory RechargeAgreement.fromJson(Map<String, Object?> json) {
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if (json['identity'] is! String ||
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json['body'] is! String ||
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json['version'] is! int ||
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(json['identity'] as String).trim().isEmpty ||
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(json['body'] as String).trim().isEmpty ||
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(json['version'] as int) < 1) {
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throw const FormatException('充值协议不完整');
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}
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return RechargeAgreement(
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json['identity'] as String,
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json['version'] as int,
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json['title'] as String? ?? '充值协议',
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json['body'] as String,
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);
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}
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}
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/// 只有充值状态23表示钱包已经入账；渠道关闭或SDK返回都不能替代这一事实。
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class RechargeRecord {
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const RechargeRecord({
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required this.identity,
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required this.number,
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required this.amount,
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required this.status,
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required this.channel,
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required this.createdAt,
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this.paymentStatus,
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});
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final String identity, number, channel;
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final int amount, status;
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final int? paymentStatus;
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final DateTime createdAt;
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bool get credited => status == 23;
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String get statusText => credited
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? '已到账'
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: paymentStatus == 30
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? '支付已关闭，未入账'
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: status == 10
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? '待确认到账'
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: '状态待确认';
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String get amountText => moneyText(amount);
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factory RechargeRecord.fromJson(Map<String, Object?> json) {
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final date = DateTime.tryParse(json['created_at'] as String? ?? '');
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if ((json['identity'] as String? ?? '').isEmpty ||
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json['recharge_status'] is! int ||
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date == null) {
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throw const FormatException('充值记录不完整');
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}
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return RechargeRecord(
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identity: json['identity'] as String,
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number: json['recharge_no'] as String? ?? '',
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amount: rechargeCents(json['amount']),
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status: json['recharge_status'] as int,
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channel: json['channel'] as String? ?? '',
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createdAt: date.toLocal(),
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paymentStatus: json['payment_status'] as int?,
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);
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}
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}
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class RechargeRecordPage {
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const RechargeRecordPage(this.items, this.nextCursor);
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final List<RechargeRecord> items;
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final String nextCursor;
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}
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