public async Task <BaseApiResult <bool> > Excute(OrderPayReq input)
{
bool needPublishEvent = false;
OrderEntity order = default;
return(await HandleAsync(input, async() =>
{
//获取订单状态
order = await orderRepository.GetAsync(x => x.UserId == currentUserInfo.UserId && x.Id == input.OrderId);
if (order == null)
{
throw new ApplicationException("订单错误,无法进行支付!");
}
//支付成功修改订单状态
order.PayOrder();
//创建订单记录
var log = new OrderHandleLogFactory().Create(order.OrderNo, order.Id, order.State, input.UserId, input.Account, "", true);
//规约检查
if (await new PayOrderSpecification(input.UserId).SatisfiedBy(order))
{
//rpc调用支付
var payResult = await accountRecharge.Excute(new AccountRechargeDto()
{
RechargeBalance = -order.TotalPrice, UserId = input.UserId, Account = input.Account
});
if (payResult.IsError())
{
throw new ApplicationException(payResult.ErrMessage);
}
needPublishEvent = true;
//持久化
using (var tran = transaction.BeginTransaction())
{
orderRepository.Update(order);
orderHandleLogRepository.Add(log);
await orderRepository.SaveAsync();
tran.Commit();
return true;
}
}
else
{
return false;
}
}, async (e) =>
{
//当支付成功且修改订单状态失败则发布事件回滚支付
if (needPublishEvent)
{
await eventBus.PublishAsync("EshopSample.PayOrderFailEvent", new PayOrderFailEvent()
{
TotalPrice = order.TotalPrice
});
}
}));
}
