/// <summary>
/// Check cost and pizza count constraints, and add a PizzaClass object to the pizzas list
/// </summary>
/// <param name="newPizza">PizzaClass object to be added to the order</param>
/// <returns>string indicating whether the pizza was successfully added or not</returns>
public string AddPizza(PizzaClass newPizza)
{
//check pizza count constraint and if pizza was built successfully
if (pizzas.Count < 12 && newPizza.price != 0.0m)
{
//check price limit constraint
if (total + newPizza.price < 500.00m)
{
//add pizza to pizzas list, add price of pizza to order total, and return string indicating success
this.pizzas.Add(newPizza);
total += newPizza.price;
OrderString = ToString();
return(newPizza.ToString() + "\nhas been added to your order.");
}
else
{
//return string indicating failure of price constraint
return("New pizza not added to your order, total may not exceed $500.00");
}
}
else if (pizzas.Count == 12)
{
//return string indicating failure of pizza count constraint
return("No more than 12 pizzas may be added to a single order");
}
else
{
//return string indicating pizza was not built successfully
return("Invalid Selection, please try again.");
}
}
/// <summary>
/// Decrements values in inventory corresponing to the selected ingredients
/// </summary>
public void DecrementInventory(PizzaClass pizza)
{
for (int i = 0; i < pizza.toppingSelection.Length; i++)
{
if (pizza.toppingSelection[i] && inventory[i] > 0)
{
inventory[i]--;
}
}
}
/// <summary>
/// Check inventory to ensure we have all the ingredients necessary to make the ordered pizza
/// </summary>
public bool CheckInventory(PizzaClass pizza)
{
//iterate thrugh toppingChoices and check inventory values for all used ingredients
for (int i = 0; i < pizza.toppingSelection.Length; i++)
{
if (pizza.toppingSelection[i] && inventory[i] == 0)
{
//inform user that the order cannot be fulfilled and return false
return(false);
}
}
//if the loop completes, return true
return(true);
}