public void Transfer(IWithdrawalAndDepositAccount from, IDepositAccount to, decimal amount)
{
if (from.Amount < amount)
{
throw new InvalidOperationException();
}
from.Withdraw(amount);
to.Deposit(amount);
}
public void WithdrawMoneyFrom(IWithdrawalAndDepositAccount account, decimal amount, IWithdrawalFeeCalculator withdrawalFeeCalculator)
{
var totalAmount = withdrawalFeeCalculator.CalculateAmountToWithdraw(amount);
if (totalAmount > account.Amount)
{
Console.WriteLine("Insufficient funds.");
return;
}
account.Withdraw(totalAmount);
Console.WriteLine("{0}: {1}", account.GetType().Name, account.Amount);
}
