//----------------------------------- PREMIUM USERS -------------------------------------------------------

        public void GetPremiumUsers()
        {
            try
            {
                int numOfUsers        = Users.Count;
                int min               = Convert.ToInt32(numOfUsers * 0.8);
                int max               = Convert.ToInt32(numOfUsers * 0.9);
                int numOfPremiumUsers = rand.Next(min, max);

                for (int i = 0; i < numOfPremiumUsers; i++)
                {
                    var current_user = Users.RandomItem();
                    if (!PremiumUsers.Contains(current_user))
                    {
                        PremiumUsers.Add(current_user);
                    }
                }
            }
            catch (Exception e)
            {
                throw e;
            }
        }
        public ManageRolesViewModel(TomasosContext context)
        {
            var RegUsers = (from k in context.Kund
                            join i in context.AspNetUsers on k.IdentityId equals i.Id
                            join ur in context.AspNetUserRoles on i.Id equals ur.UserId
                            join r in context.AspNetRoles on ur.RoleId equals r.Id
                            where r.Name == "Regular"
                            select k).ToList();
            var PremUsers = (from k in context.Kund
                             join i in context.AspNetUsers on k.IdentityId equals i.Id
                             join ur in context.AspNetUserRoles on i.Id equals ur.UserId
                             join r in context.AspNetRoles on ur.RoleId equals r.Id
                             where r.Name == "Premium"
                             select k).ToList();

            foreach (var item in RegUsers)
            {
                RegularUsers.Add(new SelectListItem(item.Namn, item.KundId.ToString()));
            }
            foreach (var item in PremUsers)
            {
                PremiumUsers.Add(new SelectListItem(item.Namn, item.KundId.ToString()));
            }
        }