bloc.dart
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import 'dart:io';
import 'package:bloc/bloc.dart';
import 'package:flutter/cupertino.dart';
import 'package:fluwx/fluwx.dart';
import 'package:tobias/tobias.dart';
import 'package:wow_english/generated/json/base/json_convert_content.dart';
import 'package:wow_english/models/product_entity.dart';
import '../../common/request/dao/shop_dao.dart';
import '../../common/request/exception.dart';
import '../../utils/loading.dart';
import '../../utils/log_util.dart';
import '../../utils/toast_util.dart';
import 'event.dart';
import 'state.dart';
class ShoppingBloc extends Bloc<ShoppingEvent, ShoppingState> {
ProductEntity? _productData;
ProductEntity? get productData => _productData;
PaymentChannel _curPaymentChannel = PaymentChannel.wechatPay;
PaymentChannel get curPaymentChannel => _curPaymentChannel;
Fluwx? fluwx;
Function(WeChatResponse)? wxPayResponseListener;
bool _isWxPayListenerInitialized = false;
ShoppingBloc(this._productData) : super(ShoppingState().init()) {
//页面初始化时刻
on<InitEvent>(_init);
on<ChangePaymentChannelEvent>(_changePaymentChannel);
on<DoPayEvent>(_startPay);
on<WxPaySuccessEvent>((event, emit) {
emit(PaySuccessState());
});
}
void _init(InitEvent event, Emitter<ShoppingState> emit) async {
//处理一些初始化操作,然后刷新界面
emit(state.clone());
}
/// 更换支付渠道
void _changePaymentChannel(ChangePaymentChannelEvent event,
Emitter<ShoppingState> emitter) async {
Log.d("_curPaymentChannel=$_curPaymentChannel, event.paymentChannel=${event.paymentChannel}");
if (_curPaymentChannel != event.paymentChannel) {
_curPaymentChannel = event.paymentChannel;
emitter(PaymentChannelChangeState());
}
}
void _startPay(DoPayEvent event,
Emitter<ShoppingState> emitter) async {
//如果event.productEntity为空，中断流程并toast提示
if (event.productEntity == null) {
showToast("商品信息为空");
return;
}
final productEntitySafely = event.productEntity!;
try {
await loading(() async {
final Map<String, dynamic>? orderInfo = await ShopDao.createOrder(productEntitySafely);
final String? orderNo = orderInfo?.getOrNull("orderNo");
if (orderNo == null) {
showToast("订单创建失败");
return;
}
if (event.paymentChannel == PaymentChannel.wechatPay) {
if (_isWxPayListenerInitialized == false) {
_isWxPayListenerInitialized = true;
fluwx = Fluwx();
await fluwx?.registerApi(appId: "wx365e5a79956a450a",
universalLink: "https://app-api.wowenglish.com.cn/app/");
wxPayResponseListener = (WeChatResponse response) {
debugPrint("wxPayResponseListener $response");
if (response is WeChatPaymentResponse) {
if (response.errCode == 0) {
showToast("支付成功");
// Log.d("emitter isDone=${emitter.isDone}");
/// 报错!_isCompleted emit was called after an event handler completed normally
// emitter(PaySuccessState());
add(WxPaySuccessEvent());
} else {
showToast("支付失败");
}
}
};
fluwx?.addSubscriber(wxPayResponseListener!);
}
bool installed = await fluwx?.isWeChatInstalled == true;
if (!installed) {
// 未安装微信，请前去下载
String name = Platform.isIOS ? "AppStore" : "应用商店";
showToast("您未安装微信，请前往$name下载~");
return;
}
final Map<String, dynamic>? wxPayOrderInfo = await ShopDao.getWxPayToken(orderNo);
if (wxPayOrderInfo == null) {
showToast("微信订单创建失败");
return;
}
await fluwx?.pay(
which: Payment(
appId: wxPayOrderInfo['appId'].toString(),
partnerId: wxPayOrderInfo['partnerId'].toString(),
prepayId: wxPayOrderInfo['prepayId'].toString(),
packageValue: wxPayOrderInfo['packageValue'].toString(),
nonceStr: wxPayOrderInfo['nonceStr'].toString(),
timestamp: int.parse(wxPayOrderInfo['timeStamp']),
sign: wxPayOrderInfo['sign'].toString(),
));
} else {
final Map<String, dynamic>? aliPayOrderInfo = await ShopDao.getAliPayToken(orderNo);
debugPrint("aliPayOrderInfo=$aliPayOrderInfo type=${aliPayOrderInfo?.runtimeType}");
final String? aliPayInfo = aliPayOrderInfo?.getOrNull("token");
if (aliPayInfo == null) {
showToast("支付宝订单创建失败");
return;
}
debugPrint("aliPayInfo=$aliPayInfo");
///打印aliPayOrderInfo的type
Tobias tobias = Tobias();
final Map aliPayResult = await tobias.pay(aliPayInfo);
debugPrint("aliPayResult=$aliPayResult");
// 判断resultStatus 为9000则代表支付成功
if (aliPayResult.getOrNull("resultStatus") == "9000") {
showToast("支付成功");
emitter(PaySuccessState());
} else {
showToast("支付失败");
}
}
});
} catch (e) {
if (e is ApiException) {
showToast(e.message ?? '请求失败,请检查网络连接');
}
}
}
void dispose() {
fluwx?.clearSubscribers();
// 释放资源的逻辑
debugPrint('BLoC disposed');
}
}
enum PaymentChannel {
wechatPay(1, "微信支付"),
aliPay(2, "支付宝支付");
const PaymentChannel(this.payChannelType, this.payChannelName);
final int payChannelType;
final String payChannelName;
}