/// <summary>
/// Takes in the input arguments, and adds Dishes to an Order until done or error.
/// </summary>
/// <param name="orderStrings">input arguments. first argument is the menu name, all other arguments are dish numbers.</param>
/// <returns>A new Order object, with tabulated dish counts for each dish ordered, and error information.</returns>
public virtual Order FormOrder(string[] orderStrings)
{
Order currentOrder = new Order();
var currentMenu = _menus.FirstOrDefault(menu => string.Equals(orderStrings[0], menu.Name, StringComparison.CurrentCultureIgnoreCase));
if (currentMenu == null)
{
currentOrder.ErrorOccurred = true;
return currentOrder;
}
for (int i = 1; ((i < orderStrings.Length) && (!currentOrder.ErrorOccurred)); i++)
{
var dishNumber = 0;
var trimmedArgument = orderStrings[i].Trim();
if (Int32.TryParse(trimmedArgument, out dishNumber))
{
if (!currentMenu.MenuItems.ContainsKey(dishNumber))
{
currentOrder.ErrorOccurred = true;
break;
}
var currentDish = currentMenu.MenuItems[dishNumber];
if(currentDish == null || currentDish.Name == null)
{
currentOrder.ErrorOccurred = true;
break;
}
currentOrder.OrderDish(dishNumber, currentDish);
}
else //couldn't parse integer from the orderString
{
currentOrder.ErrorOccurred = true;
}
}
return currentOrder;
}
