public Double calculateCost(Order order){
		if(order == null){
			System.out.println("Order is empty");
		}
		double totalCost = 0;
		for(Pizza pizza : order.getPizzas()){
			totalCost += pizza.getCost();
			for(String topping : pizza.getToppings()){
				Double toppingPrice = toppingsMenu.get(topping);
				if(toppingPrice == null){
					toppingPrice = 0.0;
				}
				totalCost += toppingPrice;
			}
		}
		
		return totalCost;
	}