public async Task <IActionResult> DiseaseTest(SystemsWithSymptomsQuestionnaire systems)
        {
            var userId = this.User.FindFirstValue(ClaimTypes.NameIdentifier);

            if (systems.Symptoms.Count > 0)
            {
                foreach (var item in systems.Symptoms)
                {
                    if (item.Selected == true)
                    {
                        await this.symptomsServices.CreateUserSymptomAsync(item.Description, systems.Name, userId);
                    }
                }
            }

            if (systems.Symptoms.Count == 0)
            {
                await this.symptomsServices.CreateUserSymptomAsync("Nothing", systems.Name, userId);
            }

            string nextSystem = await this.GetNext(this.SystemsForTests, systems.Name);

            if (nextSystem == "Empty")
            {
                this.TempData["DiseasesCompleted"] = "You have successfully gone through all the systems!";

                return(this.RedirectToAction("HealthDosierFinalising"));
            }

            return(this.RedirectToAction("DiseaseTest", "HealthDosier", new { system = nextSystem }));
        }
        public async Task <IActionResult> DiseaseTest(string system)
        {
            var userId = this.User.FindFirstValue(ClaimTypes.NameIdentifier);

            var userSymptoms = await this.symptomsServices.GetSystemNameFromUserId(userId);

            if (userSymptoms != null)
            {
                if (userSymptoms.Contains(system))
                {
                    string nextSystem = await this.GetNext(this.SystemsForTests, system);

                    if (nextSystem == "Empty")
                    {
                        return(this.Redirect("HealthDosierFinalising"));
                    }

                    return(this.RedirectToAction("DiseaseTest", "HealthDosier", new { system = nextSystem }));
                }
            }

            SystemsWithSymptomsQuestionnaire bodySystem = this.db.BodySystems
                                                          .Where(b => b.Name == system)
                                                          .Select(b => new SystemsWithSymptomsQuestionnaire
            {
                Name     = b.Name,
                Symptoms = b.Symptoms.Select(sy => new SymptomsForSystems
                {
                    Description = sy.Description,
                }).ToList(),
            }).FirstOrDefault();

            return(this.View(bodySystem));
        }