static void Main(string[] args)
{
// create a datastore
var store = new DataStore();
// create a menu
var menu = new SMUtils.Menu();
// call view to create user, and pass the new user to the store
menu.AddOption('1', "Set User Details", () => store.SetUser(UserView.CreateUser()));
// call view to show user, and pass the store user as an argument
menu.AddOption('2', "Show User Details", () => UserView.ShowUser(store.User));
// call view to create a movie, and use a function to add it to the store
menu.AddOption('3', "Add Movie", () => store.AddMovie(MovieView.CreateMovie()));
// call view to show movies and pass the list of movies from the store
menu.AddOption('4', "Show Movies", () => MovieView.ShowMovies(store.Movies));
// start running the menu
menu.Start();
// we get here after exiting the menu. Save the data to a json file
store.SaveData();
}