/// <summary>
/// 统一支付（支持各个渠道）
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public virtual async Task <object> Pay(PayInputBase input)
{
Logger?.Debug("准备发起支付：" + input.ToJsonString());
Exception exception = null;
object output = null;
if (input.OutTradeNo.IsNullOrWhiteSpace())
{
input.OutTradeNo = GenerateOutTradeNo();
}
try
{
var service = await _paymentManager.GetPayService(input.PayChannel);
if (service == null)
{
throw new UserFriendlyException($"支付渠道 {input.PayChannel} 不存在，请确认是否已注册或已添加引用！");
}
if (string.IsNullOrWhiteSpace(input.OutTradeNo))
{
input.OutTradeNo = $"{DateTime.Now:yyyyMMddHHmmssfff}";
}
output = await service.ToPay(input);
}
catch (Exception ex)
{
exception = ex;
}
await CreateToPayTransactionInfo(input, exception);
if (exception == null)
{
return(output);
}
Logger.Error("支付失败！", exception);
throw new UserFriendlyException("支付异常，请联系客服人员或稍后再试！");
}
