private void PurchaseMenu()
{
bool isTransactionFinished = false;
while (!isTransactionFinished)
{
Console.WriteLine($"\n{machineTopAndBottom}");
Console.WriteLine($"Balance: {vm.Balance,0:C}");
string selection = (string)ui.PromptForSelection(PURCHASE_MENU_OPTIONS);
if (selection == PURCHASE_MENU_OPTION_UPDATEBALANCE)
{
Console.WriteLine($"{selection}");
string[] wholeDollarAmount = { "1", "2", "5", "10", "20" };
object depositCheck = null;
while (depositCheck == null)
{
depositCheck = ui.GetChoiceFromUserInput(wholeDollarAmount);//GetChoiceFromUserInput will make sure amount is valid
}
int deposit = int.Parse(depositCheck.ToString());
vm.DepositFunds(deposit);
}
else if (selection == PURCHASE_MENU_ITEM)
{
if (vm.Balance == 0)
{
Console.WriteLine("please deposit funds using menu option 1");
isTransactionFinished = false;
}
else
{
Console.WriteLine($"{selection} or enter 0 to cancel");
object validSlotCheck = "";
while (validSlotCheck == null || (object)validSlotCheck == "")
{
validSlotCheck = ui.GetChoiceFromUserInput(ARRAY_OF_SLOTS);//GetChoiceFromUserInput will make sure product slot selected is valid
}
if (validSlotCheck.ToString() == "0")
{
isTransactionFinished = false;
}
else
{
string input = validSlotCheck.ToString().ToUpper();
Console.WriteLine(vm.PurchaseProduct(input));
}
}
}
else if (selection == PURCHASE_MENU_OPTION_FINISH_TRANSACTION)
{
isTransactionFinished = vm.FinishTransaction(machineTopAndBottom);
}
}
}
