public TransactionDto Pay(CreditCardDto from, BankAccountDto to, double amountDollar)
{
if (!IsValid(from))
{
return(null);
}
var builder = new TransactionBuilder();
Transaction transaction = builder
.From(from.CardNumber)
.To(to.Id)
.AmountDollar(amountDollar)
.TimeUtcNow()
.Build();
using (var db = new BankSystemContext())
{
Transaction saved = db.Transactions.Add(transaction);
BankAccountDetails fromBank = db.BankAccounts.FirstOrDefault(bank => bank.CreditCards.Any(card => card.CardNumber == from.CardNumber));
if (fromBank == null)
{
return(null);
}
fromBank.Balance -= transaction.AmountDollar;
BankAccountDetails toBank = db.BankAccounts.Find(to.Id);
toBank.Balance += transaction.AmountDollar;
db.SaveChanges();
return(mapper.Map <TransactionDto>(transaction));
}
}
public bool IsValid(CreditCardDto details)
{
return(mapper.Map <CreditCardDetails>(details).IsValid());
}