public async Task <PaymentDto> CreatePaymentAsync(CreatePaymentDto create)
{
Logger.LogInformation("About to call External Provider");
string status = "failed";
if (create.Amount < 20)
{
status = CheapPaymentGateway.MakePayment(create);
}
else if (create.Amount > 21 && create.Amount < 500)
{
status = ExpensivePaymentGateway.MakePayment(create);
if (status == "failed")
{
status = CheapPaymentGateway.MakePayment(create);
}
}
else
{
for (var i = 0; i < 3; i++)
{
status = PremiumPaymentService.MakePayment(create);
if (status != "failed")
{
break;
}
}
}
if (status == "failed")
{
return(null);
}
Logger.LogInformation("About to Insert new payment entry");
var paymentInfo = await PaymentRepo.InsertAsync(new Payment()
{
CreditCardNumber = create.CreditCardNumber,
CardHolder = create.CardHolder,
ExpirationDate = create.ExpirationDate,
SecurityCode = create.SecurityCode,
Amount = create.Amount
});
var commitResult = await UnitOfWork.CommitAsync();
var paymentStatus = await PaymentStatusService.CreatePaymentStatusAsync(new CreatePaymentStatusDto()
{
PaymentId = paymentInfo.Entity.Id,
Status = status
});
return(commitResult == 1 ? new PaymentDto()
{
Id = paymentInfo.Entity.Id,
Amount = paymentInfo.Entity.Amount,
Status = paymentStatus != null ? paymentStatus.Status : null
} : null);
}
private async Task <PaymentStatusType> ExpensivePayment(PayDetails payDetails)
{
var payStatus = await _expensivePaymentGateway.MakePayment(payDetails);
if (payStatus == PaymentStatusType.Failed)
{
payStatus = await _cheapPaymentGateway.MakePayment(payDetails);
}
return(payStatus);
}
public bool Execute()
{
// In real implementation make request to expensivePaymentGateway
if (_expensiveGateWay.IsGatewayAvaibale())
{
return(_expensiveGateWay.MakePayment(_amount));
}
if (_cheapGateWay.IsGatewayAvaibale())
{
return(_cheapGateWay.MakePayment(_amount));
}
return(false);
}
public async Task <ProcessPaymentResponse> ProcessNewPayment(PaymentDTO payment)
{
try
{
//validate request
// 1. validate card number by calling the ValidateCardNumberClass
if (ValidateCardNumber.IsCardNumberValid(ValidateCardNumber.RemoveSpaceAndAlphaInCardNumber(payment.CreditCardNumber)))
{
return new ProcessPaymentResponse {
Status = false, Message = "Invalid card number", ResponseType = ResponseType.badRequest
}
}
;
if (string.IsNullOrEmpty(payment.CardHolder))
{
return new ProcessPaymentResponse {
Status = false, Message = "Provide card holder name", ResponseType = ResponseType.badRequest
}
}
;
if (payment.Amount <= 0)
{
return new ProcessPaymentResponse {
Status = false, Message = "Provide a positive amount", ResponseType = ResponseType.badRequest
}
}
;
if (ValidateCardNumber.RemoveSpaceAndAlphaInCardNumber(payment.SecurityCode).Length != 3)
{
return new ProcessPaymentResponse {
Status = false, Message = "Provide a valid security code", ResponseType = ResponseType.badRequest
}
}
;
if (DateTime.Now.Date > payment.ExpirationDate.Date)
{
return new ProcessPaymentResponse {
Status = false, Message = "Card has expired", ResponseType = ResponseType.badRequest
}
}
;
var submitPaymentInfo = await _paymentService.AddPayment(_mapper.Map <Payment>(payment));
if (submitPaymentInfo != null)
{
var response = false;
// Call the -ICheapPaymentGateway(Amount <20)
if (payment.Amount < 20)
{
response = await _cheapPayment.MakePayment(_config.GetSection("CheapServiceURL").Value, payment);
}
//Call the - IExpensivePaymentGateway(Amount btw 21-500)
else if (payment.Amount > 20 && payment.Amount < 500)
{
response = await _expensivePayment.MakePayment(_config.GetSection("ExpensiveServiceURL").Value, payment);
//if failed retry nce with ICheapPaymentGateway
if (!response)
{
response = await _cheapPayment.MakePayment(_config.GetSection("CheapServiceURL").Value, payment);
}
}
else
{
//Call the PremiumPaymentService (Amount >500 ) and retry 3 times if failed
var retryCount = 0;
while (!response && retryCount < 3)
{
response = await _cheapPayment.MakePayment(_config.GetSection("PremiumServiceURL").Value, payment);
}
}
if (response)
{
await _paymentStatusService.UpdatePaymentStatus(submitPaymentInfo.PaymentId, "processed");
return(new ProcessPaymentResponse {
Status = response, Message = "processed", ResponseType = ResponseType.badRequest
});
}
else
{
await _paymentStatusService.UpdatePaymentStatus(submitPaymentInfo.PaymentId, "processed");
return(new ProcessPaymentResponse {
Status = response, Message = "failed", ResponseType = ResponseType.badRequest
});
}
}
else
{
return(new ProcessPaymentResponse {
Message = "Internal server error", Status = false, ResponseType = ResponseType.internalServerError
});
}
}
catch (Exception ex)
{
return(new ProcessPaymentResponse {
Message = "Internal server error", Status = false, ResponseType = ResponseType.internalServerError
});
}
}
