public void RunVendingMachine()
{
Vendomatic500.VendomaticAscii();
int selectedChoice = 0;
bool validAnswer = false;
bool returnToMainMenu = true;
while (returnToMainMenu)
{
Console.WriteLine("MAIN MENU");
Console.WriteLine("Please select from the following:");
Console.WriteLine("1. Display Vending Machine Items \n2. Purchase \n3. Turn Off Vending Machine");
Console.WriteLine();
while (!validAnswer)
{
try
{
selectedChoice = int.Parse(Console.ReadLine());
if (selectedChoice == 1 || selectedChoice == 2 || selectedChoice == 3)
{
validAnswer = true;;
}
else
{
throw new Exception();
}
}
catch (Exception)
{
Console.WriteLine();
Console.WriteLine("Please make a valid selection: 1, 2 or 3.");
Console.WriteLine("1. Display Vending Machine Items \n2. Purchase \n3. Turn Off Vending Machine");
Console.WriteLine();
}
}
if (selectedChoice == 1)
{
Console.WriteLine();
Console.WriteLine(vm.DisplayItems());
Console.WriteLine("Press any button to return to the Main Menu.");
Console.ReadLine();
Console.WriteLine();
validAnswer = false;
}
else if (selectedChoice == 2)
{
returnToMainMenu = false;
bool returnToPurchaseMenu = true;
while (returnToPurchaseMenu)
{
Console.WriteLine();
Console.WriteLine("PURCHASE MENU");
Console.WriteLine("Please select from the following:");
Console.WriteLine("1. Feed Money \n2. Select Product \n3. Complete Transaction");
Console.WriteLine("Your current available balance is " + vm.Balance + ".");
Console.WriteLine();
validAnswer = false;
while (!validAnswer)
{
try
{
selectedChoice = int.Parse(Console.ReadLine());
if (selectedChoice == 1 || selectedChoice == 2 || selectedChoice == 3)
{
validAnswer = true;
returnToPurchaseMenu = false;
}
else
{
throw new Exception();
}
}
catch (Exception)
{
Console.WriteLine();
Console.WriteLine("Please make a valid selection: 1, 2 or 3.");
Console.WriteLine("1. Feed Money \n2. Select Product \n3. Complete Transaction");
Console.WriteLine();
}
}
if (selectedChoice == 1)
{
Console.WriteLine();
Console.WriteLine("Please insert a $1, $2, $5, or $10 bill.");
Console.WriteLine("To add $1: select 1. \nTo add $2: select 2. \nTo add $5: select 5. \nTo add $10: select 10.");
Console.WriteLine();
int paymentAmount = 0;
validAnswer = false;
while (!validAnswer)
{
try
{
paymentAmount = int.Parse(Console.ReadLine());
if (paymentAmount == 1 || paymentAmount == 2 || paymentAmount == 5 || paymentAmount == 10)
{
validAnswer = true;
returnToPurchaseMenu = false;
}
else
{
throw new Exception();
}
}
catch (Exception)
{
Console.WriteLine();
Console.WriteLine("Please make a valid selection: 1, 2, 5, or 10.");
Console.WriteLine();
}
}
vm.AddMoneyToBalance(paymentAmount);
vm.FeedMoneyToVMLog(paymentAmount);
returnToPurchaseMenu = true;
}
else if (selectedChoice == 2)
{
Console.WriteLine();
Console.WriteLine("Please enter product code.");
Console.WriteLine();
string slotNumber = " ";
validAnswer = false;
while (!validAnswer)
{
try
{
slotNumber = Console.ReadLine().ToUpper();
if (vm.VMContents.ContainsKey(slotNumber))
{
validAnswer = true;
returnToPurchaseMenu = false;
}
else
{
throw new Exception();
}
}
catch (Exception)
{
Console.WriteLine();
Console.WriteLine("You have entered a non-existant product code. Returning to Purchase Menu.");
Console.WriteLine("To view item list, complete transaction and return to Main Menu.");
validAnswer = true;
returnToPurchaseMenu = true;
}
}
while (!returnToPurchaseMenu)
{
if (vm.VMContents[slotNumber].Quantity > 0)
{
vm.DispenseItem(slotNumber);
if (vm.Balance.IsNegative)
{
vm.Balance = vm.Balance.Plus(vm.VMContents[slotNumber].Price);
vm.VMContents[slotNumber].Quantity += 1;
Console.WriteLine();
Console.WriteLine("Your current balance is too low to make this purchase. Please add more money or select a different product.");
returnToPurchaseMenu = true;
}
else
{
Console.WriteLine();
Console.WriteLine(vm.VMContents[slotNumber].ToString());
returnToPurchaseMenu = true;
vm.ItemDispensedToLog(slotNumber);
}
}
else
{
Console.WriteLine();
Console.WriteLine($"{vm.DispenseItem(slotNumber)}");
Console.WriteLine("Returning to Purchase Menu.");
returnToPurchaseMenu = true;
}
}
}
else if (selectedChoice == 3)
{
Console.WriteLine();
vm.ChangeDispensedToLog();
Console.WriteLine(vm.DispenseChange());
Console.WriteLine();
Console.WriteLine("Returning to main menu.");
Console.WriteLine();
returnToMainMenu = true;
validAnswer = false;
}
}
}
else if (selectedChoice == 3)
{
vm.SalesReport();
Environment.Exit(0);
}
}
}