public async Task <IActionResult> Symptoms()
        {
            var vm = new DiagnoseSymtomsViewModel
            {
                Symptoms = await _symptomService.GetAllAsync()
            };

            return(View(vm));
        }
        public async Task <IActionResult> Results(DiagnoseSymtomsViewModel vm)
        {
            var selectedSymptoms = vm.Symptoms.Where(s => s.IsSelected).ToList();

            if (selectedSymptoms.Count > 0)
            {
                vm.Diseases = await _diagnoseService.DiagnoseBySymptomsAsync(selectedSymptoms);

                if (vm.Diseases != null)
                {
                    return(View(vm));
                }
            }

            // something went wrong
            return(RedirectToAction(nameof(Symptoms), vm));
        }
 public IActionResult Symptoms(DiagnoseSymtomsViewModel vm)
 {
     return(View(vm));
 }