public async Task <String> MakePayment(PaymentDetails paymentDetails)
{
String response = String.Empty;
try
{
//Using Custom Credit Card Validation Instead of CreditCardAttribute
if (!String.IsNullOrEmpty(paymentDetails?.CreditCardNumber) && Validation.IsCardNumberValid(paymentDetails.CreditCardNumber))
{
if (paymentDetails.Amount > 0 && Validation.IsExpirationDateValid(paymentDetails.ExpirationDate))
{
//String encryptedCardNumber = _Encryption.EncryptAndSave(paymentDetails.CreditCardNumber);
String encryptedCardNumber = paymentDetails.CreditCardNumber;
//Checking for existing user.
var existing_user = _PaymentContext.People.Include(x => x.CardInformation)
.Where(x => x.FullName == paymentDetails.CardHolderName)
.FirstOrDefault();
if (existing_user is null)
{
// if the user doesn't exist , insert into the database
existing_user = AddNewUser(paymentDetails, encryptedCardNumber);
}
else
{
// checking whether the card exists or not
var card = existing_user.CardInformation.Where(x => x.CreditCardNumber == encryptedCardNumber).FirstOrDefault();
if (card is null)
{
CardInformation cardInformation = new CardInformation()
{
CreditCardNumber = encryptedCardNumber,
SecurityCode = paymentDetails.SecurityCode
};
existing_user.CardInformation.Add(cardInformation);
existing_user = _PeopleRepo.UpdateAndGet(existing_user);
}
}
//Creating a new transaction
Transactions NewTransaction = new Transactions();
_TransactionRepo.Insert(NewTransaction);
_TransactionRepo.Save();
existing_user.CardInformation.Where(x => x.CreditCardNumber == encryptedCardNumber).FirstOrDefault().Transactions.Add(NewTransaction);
existing_user = _PeopleRepo.UpdateAndGet(existing_user);
//Payment Gateway Call
_PaymentGateway = _PaymentGatewayFactory.GetPaymentGateway(paymentDetails.Amount);
response = await _PaymentGateway.GetPaymentStatus(paymentDetails);
//Updating the response
NewTransaction.PaymentState = response;
_TransactionRepo.Update(NewTransaction);
_TransactionRepo.Save();
}
}
else
{
response = "Invalid Card Number";
}
}
catch (Exception ex)
{
response = ex.Message;
}
return(response);
}
