A takeaway program, that has list of dishes with prices, you can place an order by giving the list of dishes.Their quantities and a number that should be the exact total. If the sum is not correct the method should raise an error, otherwise the customer is sent a text saying that the order was placed successfully and that it will be delivered 1 hour from now, e.g. "Thank you! Your order was placed and will be delivered before 18:52". The text sending functionality is implemented using Twilio API.

Dish
Responsibility | Collaborator Has a price | Menu Has a name | Menu

Menu
Responsibility | Collaborator Has a list of dishes | Menu

Order
Responsibility | Collaborator Can have a list of selected dishes | Menu

Customer Responsibility | Collaborator Can buy food | Menu

Message Responsibility | Collaborator Send message to customer | Menu