public async Task <IActionResult> StudentProfile(string returnUrl)
{
var sanitizer = new HtmlSanitizer();
var user = await Manager.FindByNameAsync(this.User.Identity.Name);
var model = new StudentProgressViewModel();
model.User = user;
model.returnUrl = returnUrl;
model.Tasks = Docs.GetStudentTasks(user.Id) ?? new List <StTask>();
model.Group = Groups.GetGroupById(((StudentUser)user).GroupID);
model.UnvisitedLectures = Groups.Lectures.Where(x => x.Date < DateTime.Now && !x.Visits.Any(y => y.VisitorID == user.Id) && x.GroupID == model.Group.GroupID).AsNoTracking().ToList() ?? new List <Lecture>();
model.VisitedLectures = Groups.Lectures.Where(x => x.Date < DateTime.Now && x.Visits.Any(y => y.VisitorID == user.Id) && x.GroupID == model.Group.GroupID).AsNoTracking().ToList() ?? new List <Lecture>();
model.HtmlData = sanitizer.Sanitize(CommonMark.CommonMarkConverter.Convert(user.Description ?? "### No description"));
return(View(model));
}