57 lines
1.7 KiB
Dart
57 lines
1.7 KiB
Dart
import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:fluwx/fluwx.dart';
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import 'package:tobias/tobias.dart';
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import 'package:url_launcher/url_launcher.dart';
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import 'payment_jsapi.dart';
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/// 只负责调起支付渠道；支付结果必须重新向服务端查询确认。
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class PaymentLauncher {
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PaymentLauncher({Fluwx? wechat, Tobias? alipay})
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: _wechat = wechat ?? Fluwx(),
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_alipay = alipay ?? Tobias();
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final Fluwx _wechat;
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final Tobias _alipay;
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Future<void> launch(Map<String, Object?> payment) async {
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final channel = payment['channel'];
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final payType = payment['pay_type'];
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final argsText = payment['client_args'] as String? ?? '';
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// 支付宝手机网站支付返回可直接打开的收银台 URL。
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if (payType == 'wap') {
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final uri = Uri.tryParse(argsText);
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if (uri == null ||
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!await launchUrl(uri, mode: LaunchMode.externalApplication)) {
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throw StateError('无法打开支付页面');
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}
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return;
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}
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if (kIsWeb && payType == 'jsapi') {
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await invokeWechatJsapi(argsText);
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return;
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}
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if (channel == 'alipay') {
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await _alipay.pay(argsText);
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return;
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}
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final args = (jsonDecode(argsText) as Map).cast<String, dynamic>();
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final accepted = await _wechat.pay(
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which: Payment(
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appId: payment['app_id'] as String? ?? '',
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partnerId: args['partnerId'] as String,
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prepayId: args['prepayId'] as String,
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packageValue: args['package'] as String,
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nonceStr: args['nonceStr'] as String,
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timestamp: int.parse(args['timeStamp'] as String),
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sign: args['sign'] as String,
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),
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);
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if (!accepted) throw StateError('微信未接受支付请求');
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}
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}
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