private void handlePurchase()
{
displayItems();
string chosenSlotNumber = panel.GetPurchaseSelection();
if (!inventory.InventoryExists(chosenSlotNumber))
{
panel.DisplayError("Your chosen product doesn't exist.");
return;
}
if (!inventory.CanSell(chosenSlotNumber))
{
panel.DisplayError("That item is sold out!");
return;
}
IVendable chosenProduct = inventory.GetVendable(chosenSlotNumber);
if (currentMoneyProvided < chosenProduct.Price)
{
panel.DisplayError("Please insert more money to buy this product.");
return;
}
// Add money to till.
currentMoneyProvided = till.Purchase(chosenProduct, currentMoneyProvided);
// Remove inventory.
inventory.ReduceInventory(chosenSlotNumber);
// Output the purchase.
panel.DisplayPurchaseMessage(chosenProduct, currentMoneyProvided);
}
public Inventory()
{
string path = Directory.GetCurrentDirectory();
string fileName = "vendingmachine.csv";
try
{
using (StreamReader sr = new StreamReader(Path.Combine(path, fileName)))
{
while (!sr.EndOfStream)
{
string line = sr.ReadLine();
string[] words = line.Split("|");
decimal cost = decimal.Parse(words[2]);
IVendable newItem = null;
currentInventory.Add(words[0], 5);
if (words[3] == "Chip")
{
newItem = new Chip(words[1], cost, words[0]);
}
if (words[3] == "Candy")
{
newItem = new Candy(words[1], cost, words[0]);
}
if (words[3] == "Drink")
{
newItem = new Drink(words[1], cost, words[0]);
}
if (words[3] == "Gum")
{
newItem = new Gum(words[1], cost, words[0]);
}
items.Add(words[0], newItem);
}
}
}
catch (FileNotFoundException)
{
Console.WriteLine("File not found. Try again.");
}
catch (FormatException)
{
Console.WriteLine("Incorrect format for cost.");
}
catch (Exception)
{
Console.WriteLine("Could not load inventory. Try again.");
}
}
public decimal Purchase(IVendable product, decimal moneyIn)
{
return(moneyIn - product.Price);
}
public void DisplayPurchaseMessage(IVendable vendable, decimal amountRemaining)
{
Console.WriteLine($"Item: {vendable.Name} Cost: {vendable.Price} Money Remaining: {amountRemaining}");
vendable.GetPurchaseMessage();
}