private static decimal? CardAmount(string cardNumber)
{
decimal? moneyAmount;
using (ATMEntities db = new ATMEntities())
{
moneyAmount = db.CardAccounts.Where(x => cardNumber != null && x.CardNumber == cardNumber).Select(a => a.CardCash).First();
}
return moneyAmount;
}
private static bool CardValidation(string cardNumber, string cardPin)
{
bool isValid;
using (ATMEntities db = new ATMEntities())
{
bool isCardNumberValid = db.CardAccounts.Any(a => a.CardNumber == cardNumber);
bool isCardPinValid = db.CardAccounts.Any(b => b.CardPIN == cardPin);
if (isCardNumberValid && isCardPinValid)
{
isValid = true;
}
else
{
isValid = false;
}
}
return isValid;
}
private static void WithdrawTransfer(string cardNumber, string cardPin, decimal moneyValue)
{
using (ATMEntities db = new ATMEntities())
{
var account = db.CardAccounts.FirstOrDefault(x => x.CardNumber == cardNumber && x.CardPin == cardPin);
account.CardCash = account.CardCash - moneyValue;
DateTime transactionDate = DateTime.Now;
Console.WriteLine("Successful, remaining availability: {0}", account.CardCash);
TransactionsHistory currentTransaction = new TransactionsHistory()
{
Id = account.Id,
CardNumber = cardNumber,
Ammount = account.CardCash,
TransactionDate = transactionDate
};
db.TransactionsHistories.Add(currentTransaction);
db.SaveChanges();
}
}