//perform transaction
public override void Execute()
{
processingWithdrawal = true;
//get the balances
decimal availableBalance = bankDatabase.GetAvailableBalance(accountNumber);
decimal totalBalance = bankDatabase.GetTotalBalance(accountNumber);
//array of amounts to correspond to menu numbers
int[] amounts = { 0, 20, 40, 60, 100, 200 };
screen.DisplayMessage("\r\nWithdrawal options:");
screen.appendMessage("1 - $20");
screen.appendMessage("2 - $40");
screen.appendMessage("3 - $60");
screen.appendMessage("4 - $100");
screen.appendMessage("5 - $200");
screen.appendMessage("6 - Cancel transaction");
screen.appendMessage("\r\nChoose a withdrawal option (1-6): ");
int selection = keypad.getSelection();
//Make sure the user input an option - Can't withdraw nothing
if (selection != 0)
{
//pull the correct amount from the array
int withdrawalAmount = amounts[selection];
if (withdrawalAmount > availableBalance)
{
//not enough money
screen.DisplayMessage("Insufficient funds.\r\nNow Exiting...");
processingWithdrawal = false;
}
else
{
//subtract the amount
if (cashDispenser.IsSufficientCashAvailable(withdrawalAmount))
{
//debit the account to reflect the withdrawal
bankDatabase.Debit(accountNumber, withdrawalAmount);
cashDispenser.DispenseCash(withdrawalAmount);
screen.DisplayMessage("\r\nPlease take your cash from the cash dispenser.");
//cashDispenserLabel.ForeColor = Color.BlueViolet;
processingWithdrawal = false;
}
else
{
screen.DisplayMessage("\r\nInsufficient cash available in the ATM \n\nPlease choose a smaller amount.");
}
}
}
}
private void PerformTransactions()
{
int mainMenuSelection;
//show main menu and get user selection
DisplayMainMenu();
mainMenuSelection = keypad.getSelection();
//decide how to proceed based on user's menu selection
if (mainMenuSelection != 0)
{
Transaction transaction;
switch ((MenuOption)mainMenuSelection)
{
//user chooses to perform one of three transaction types
case MenuOption.BALANCE_INQUIRY:
transaction = new BalanceInquiry(accountNumber, screen, bankDatabase);
transaction.Execute();
break;
case MenuOption.WITHDRAWAL:
Withdrawal();
break;
case MenuOption.DEPOSIT:
MakeDeposit();
break;
case MenuOption.EXIT_ATM:
ExitATM();
break;
default:
screen.DisplayMessage("You did not enter a valid selection. Try again.");
break;
}
}
}
