public static decimal WidrawMoney(decimal amount, string cardPin, string cardNumber, IAtmData atmData)
{
using (var transaction = atmData.BeginTransaction())
{
var currentCard = atmData.CardAccounts.Search(c => c.CardNumber == cardNumber && c.CardPIN == cardPin)
.FirstOrDefault();
if (currentCard == null)
{
transaction.Rollback();
throw new ArgumentNullException("There are no Card Account in database with this Pin and card number.");
}
if (currentCard.CardCash < amount)
{
transaction.Rollback();
throw new InvalidOperationException("You dont have enought money.");
}
currentCard.CardCash -= amount;
LogWithdrawalTransaction(cardNumber, amount, atmData);
atmData.SaveChanges();
transaction.Commit();
return amount;
}
}
private static void LogWithdrawalTransaction(string cardNumber, decimal amount, IAtmData atmData)
{
atmData.TransactionHistory.Add(new TransactionHistory
{
Amount = amount,
CardNumber = cardNumber,
TransactionDate = DateTime.Now
});
atmData.SaveChanges();
}
public static decimal WidrawMoney(decimal amount, string cardPin, string cardNumber, IAtmData atmData)
{
using (var transaction = atmData.BeginTransaction())
{
var currentCard = atmData.CardAccounts.Search(c => c.CardNumber == cardNumber && c.CardPIN == cardPin)
.FirstOrDefault();
if (currentCard == null)
{
transaction.Rollback();
throw new ArgumentNullException("There are no Card Account in database with this Pin and card number.");
}
if (currentCard.CardCash < amount)
{
transaction.Rollback();
throw new InvalidOperationException("You dont have enought money.");
}
currentCard.CardCash -= amount;
LogWithdrawalTransaction(cardNumber, amount, atmData);
atmData.SaveChanges();
transaction.Commit();
return(amount);
}
}
private static void LogWithdrawalTransaction(string cardNumber, decimal amount, IAtmData atmData)
{
atmData.TransactionHistory.Add(new TransactionHistory
{
Amount = amount,
CardNumber = cardNumber,
TransactionDate = DateTime.Now
});
atmData.SaveChanges();
}
