public Payment ProcessPayment(Payment payment)
{
_repository.CreatePayment(payment);
PaymentState paymentResponse;
if (payment.Amount < Constants.CheapAmountUpperBound)
{
paymentResponse = _cheapPaymentGateway.Charge(payment);
}
else if (payment.Amount >= Constants.CheapAmountUpperBound && payment.Amount <= Constants.ExpensiveAmountUpperBound)
{
paymentResponse = _expensivePaymentGateway.Charge(payment);
if (paymentResponse.Status != PaymentStatusTypes.Processed)
{
paymentResponse = _cheapPaymentGateway.Charge(payment);
}
}
else if (payment.Amount > Constants.ExpensiveAmountUpperBound)
{
int count = 0;
do
{
paymentResponse = _premiumPaymentService.Charge(payment);
count++;
}while(
count < Constants.PremiumPaymentServiceCount &&
paymentResponse.Status != PaymentStatusTypes.Processed
);
}
return(payment);
}