public PaymentStatus GetPaymentGateway(decimal amount)
{
PaymentStatus status;
if (amount <= 20)
{
_cheapGateway.ProceessAmount(amount);
status = PaymentStatus.Processed;
}
else if (amount > 20 && amount <= 500)
{
status = _expensiveGateway.ProceessAmount(amount);
if (status == PaymentStatus.Failed)
{
status = _cheapGateway.ProceessAmount(amount);
}
}
else
{
int count = 1;
do
{
status = _premiumGateway.ProceessAmount(amount);
count++;
}while (status != PaymentStatus.Processed && count <= 3);
}
return(status);
}