public static void GetUser()
        {
            Console.WriteLine("Please enter userId: ");
            var userId        = Console.ReadLine();
            var userDbService = new UserDbService();
            var user          = userDbService.GetUser(Guid.Parse(userId));

            Console.WriteLine($"{user.Id} {user.FirstName} {user.LastName} {user.Email}");
        }
        public static void GetAllUsers()
        {
            var userDbService = new UserDbService();
            var users         = userDbService.IGetUsers();

            foreach (var user in users)
            {
                Console.WriteLine($"{user.Id} {user.FirstName} {user.LastName} {user.Email}");
            }
        }
        public static void DeleteUser()
        {
            Console.WriteLine("Please enter userId you want to update: ");
            var userId = Console.ReadLine();

            var userDbService = new UserDbService();
            var user          = userDbService.GetUser(Guid.Parse(userId));

            if (user == null)
            {
                Console.WriteLine("Current user does not exist");
            }

            userDbService.DeleteUser(Guid.Parse(userId));
        }
        public static void AddUser()
        {
            var user = new User
            {
                Id = Guid.NewGuid()
            };

            Console.WriteLine("Enter UserName: "******"Enter LastName: ");
            user.LastName = Console.ReadLine();
            Console.WriteLine("Enter Email: ");
            user.Email = Console.ReadLine();

            var userDbService = new UserDbService();/////

            userDbService.AddUser(user);
        }
        public static void UpdateUser()
        {
            Console.WriteLine("Please enter userId you want to update: ");
            var userId = Console.ReadLine();

            var userDbService = new UserDbService();
            var user          = userDbService.GetUser(Guid.Parse(userId));

            if (user == null)
            {
                Console.WriteLine("Current user does not exist");
            }

            Console.WriteLine("Enter UserName: "******"Enter LastName: ");
            user.LastName = Console.ReadLine();
            Console.WriteLine("Enter Email: ");
            user.Email = Console.ReadLine();

            userDbService.UpdateUser(user);
        }