/// <summary>
/// Will be executed on any meal change event but in fact is looking for when
/// the customer is done
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void OnCurrentCustomerMealChanged(object sender, MealChangeEventArg e)
{
if ((sender == null && e == null) || e.NewMeal == Meal.Done)
{
Customer customer = RestaurantQueue.Remove();
// If there's no other customer in the queue
if (customer == null)
{
Console.WriteLine("\nEveryone is full.");
return;
}
// If this isn't the first customer, previous customer
// which is done should stop listening to TableOpen event
if (sender != null)
{
Customer prevCustomer = sender as Customer;
RestaurantTable.TableOpenEvent
-= prevCustomer.OnTableOpenHappened;
Console.WriteLine();
}
RestaurantTable.TableOpenEvent += customer.OnTableOpenHappened;
RestaurantTable.Clean();
}
else
{
if (e == null)
{
return;
}
Customer customer = e.theCustomer;
Console.WriteLine($"{customer.FirstName} {customer.LastName}"
+ $" is having {e.NewMeal}");
}
}
private void AnnounceMealChange(Meal oldMeal, Meal newMeal)
{
MealChangeEventArg arg = new MealChangeEventArg(this, oldMeal, newMeal);
MealChangeEvent?.Invoke(this, arg);
}
