private static void Transact(string cardNumber)
{
try
{
var transactionAmount = _vendingMachineInstance.CurrentItemAmount;
Console.WriteLine("Card inserted");
var cardToTransact = _vendingMachineInstance.FindCard(cardNumber);
Console.Write("Please enter Pin: ");
var input = Console.ReadLine();
uint inputPin;
if (UInt32.TryParse(input, out inputPin))
{
if (cardToTransact.ValidatePin(inputPin)) //Pin is correct
{
//1.Deduct the amount from users' card.
if (!cardToTransact.DebitAmount(transactionAmount))
{
throw new InsufficientExecutionStackException("Insufficient funds on your account.");
}
//2.Credit Vending machine account
_vendingMachineInstance.CreditVendingAmount(transactionAmount);
//3. Serve the vending item out.
var item = _vendingMachineInstance.VendIt();
Console.WriteLine("Your card has been deducted with {0}", transactionAmount);
Console.WriteLine("Please collect your {0}.Thank you", item.Name);
}
}
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
Console.WriteLine("Please start again.");
}
Console.Read();
}
public void Inventory_Will_Vend_AnyThing_If_Not_Empty()
{
Assert.IsTrue(0 == _machine.InventoryCount);
AddSomeItemsToInventory();
Assert.IsNotNull(_machine.VendIt());
}
