public async Task <ActionResult> CalcBmi(DashboardViewmodel viewmodel)
        {
            var userEmail  = HttpContext.User.Claims.Where(i => i.Type == ClaimTypes.Email).First().Value;
            var _user      = logic.GetUserByEmail(userEmail);
            var _viewmodel = new DashboardViewmodel
            {
                User   = _user,
                Weight = logic.GetWeightById(_user.Id),
                Height = logic.GetHeightById(_user.Id)
            };

            var bmi = logic.CalcBmi(_viewmodel.Weight, _viewmodel.Height, _user.Id);

            return(RedirectToAction("index", "Dashboard"));
        }