private static void DisplayWalletBalance(IVendingMachine machine)
{
Console.WriteLine($"Current Wallet Balance = {machine.GetWalletBalance()}");
}
private static void BuyItemByIndex(IVendingMachine machine, int index)
{
int numberOfItemsThatCanBePurchased = machine.HowManyItemsCanBeBought(index);
string nameOfItem = machine.GetCurrentCatalogue()[index].GetItemType().Name;
if (numberOfItemsThatCanBePurchased == 0)
{
Console.WriteLine($"You don't have balance to purchase any {nameOfItem}! Please top up balance from Main Menu");
GoBackToMainMenu(machine);
}
else
{
Console.WriteLine($"You can at most buy {numberOfItemsThatCanBePurchased} with your balance of ${machine.GetWalletBalance()}.");
Console.WriteLine("How many do you want to buy?");
string input = Console.ReadLine();
if (IsResponseInteger(input))
{
int responseInt = GetResponseInteger(input);
if (responseInt > 0 && responseInt <= numberOfItemsThatCanBePurchased)
{
List <IItem> items = machine.PurchaseItem(index, responseInt);
Console.WriteLine($"Congratulations! You purchased {responseInt} {nameOfItem}");
DisplayCurrentCatalogue(machine);
GoBackToMainMenu(machine);
}
else
{
Console.WriteLine("Wrong Input");
GoBackToMainMenu(machine);
}
}
else
{
Console.WriteLine("Wrong Input");
GoBackToMainMenu(machine);
}
}
}
