public static bool Validate(CardType cardType, string cardNumber)
{
string strippedCardNumber = Regex.Replace(cardNumber, @"\D", String.Empty);
ICardValidator validator = SelectCardValidator(cardType);
return(validator.Validate(strippedCardNumber));
}
public string CompletePurchase(SalesOrder salesOrder, CardInfo cardInfo)
{
// This is a controller that follows four steps to complete the sale.
string authorizationCode = null;
if (Validate(salesOrder) && cardValidator.Validate(cardInfo))
{
authorizationCode = authorizer.Authorize((decimal)salesOrder.Total, cardInfo);
if (authorizationCode != null)
{
UpdateSalesOrder(salesOrder, cardInfo, authorizationCode);
}
}
return(authorizationCode);
}
