Computer science software engineering I want analysis on MyFitnessPal application

Domain class diagram for the full system

And try to explain the attributes and the relations

I want the domain class diagram for the application. It is very interesting program for tracking weight and exercise. First the user will create account using email, password,username. Then create accounts by entering personal information such as current weigh hight level of activity as well as the weight goal(loss, maintain,gain) and then the program will suggest u a calories depending on ur goal. Then the user will start entering what he/she eats as breakfast,lunch,dinner by choosing from list or scanning baracode or entering the recipe and the app will calculate the calories. Also, important feature is that u can view nutrition information such as macros or percentages of each type of food(carbs,protein,fat) and will suggest you a food to balance the pie chart macros. Also, the program has a feature of setting reminder with the time expected of the meals in order to remember and enter them in the app.

Also another feature for calculating the calories spent is by entering the type of workout ,intensity, and duration. and the program will deduct the calories from the daily calories goal.

Another important feature is the ability to socialize in the app. You canadd ur friends to track them and get motivated.

I hope u do the domain class with the needed classes coz I will design a database for this I want it to be accurate and not missing anything.

Thank you ....