public Manager(string productStockFile, string menuFile, string ordersFile)
{
productStock = new ProductStock();
productStock.getDataFromFile(productStockFile);
menu = new Menu();
menu.getDataFromFile(menuFile);
orders = new Orders();
orders.getDataFromFile(ordersFile);
this.productStockFile = productStockFile;
this.menuFile = menuFile;
this.ordersFile = ordersFile;
}
public void createOrderPage()
{
Console.Clear();
Console.WriteLine("Menu items");
this.menu.printMenu();
Console.WriteLine("\n");
try
{
int id = this.orders.newID();
Console.Write("Menu items: ");
var menuIdsString = Console.ReadLine();
var menuIds = menuIdsString.Split(' ').Select(Int32.Parse).ToList();
// create temporary variable for productStock
// deduct each product
// if product stock is not below 0
// this.productStock = tempProductStock
var tempProductStock = new ProductStock();
tempProductStock.getDataFromFile(this.productStockFile);
// check if all given menu items are available in the menu
foreach (var menuId in menuIds)
{
if (this.menu.isAvailable(menuId) == false)
{
Console.WriteLine("Menu items are not available!");
Console.ReadKey();
orderPage();
}
else
{
var menuItem = this.menu.getMenuListItem(menuId);
foreach (var productId in menuItem.products)
{
tempProductStock.deductStock(productId);
if (tempProductStock.getStock(productId) < 0)
{
Console.WriteLine("Products are not available! Order cancelled");
Console.ReadKey();
orderPage();
}
}
}
}
// given product count must be > 0
if (menuIds.Count > 0)
{
// replace original productStock list with list with deducted values
this.productStock = tempProductStock;
this.productStock.updateDataFile(this.productStockFile);
var orderItem = new OrderItem(id, DateTime.Now, menuIds);
this.orders.createOrder(orderItem);
this.orders.updateDataFile(this.ordersFile);
Console.WriteLine("Order has been created successfully");
Console.ReadKey();
}
else
{
Console.WriteLine("Menu item count must be > 0");
Console.ReadKey();
}
}
catch (Exception e)
{
//Console.WriteLine(e);
Console.WriteLine("Error while adding item to menu!");
Console.ReadKey();
}
orderPage();
}
