public async Task <UserCourseModel> UnSubscribeFromCourseAsync(UserCourseModel userCourseModel)
{
var userCourse = await _context.UserCourses.Where(uc => uc.StudentId == userCourseModel.StudentId &&
uc.CourseId == userCourseModel.CourseId)
.SingleOrDefaultAsync();
if (userCourse != null)
{
var user = await _context.Users.Include(u => u.ScheduledJobs)
.Where(u => u.Id == userCourseModel.StudentId)
.SingleOrDefaultAsync();
if (user != null)
{
foreach (var item in user.ScheduledJobs)
{
_backgroundJob.Delete(item.Id);
_context.ScheduledJobs.Remove(item);
}
}
_context.UserCourses.Remove(userCourse);
await _context.SaveChangesAsync();
return(_mapper.Map <UserCourseModel>(userCourse));
}
return(null);
}
public async Task <CourseModel> SubscribeToCourseAsync(SubscribeToCourseModel subscribeToCourseModel)
{
var course = await _context.Courses.FindAsync(subscribeToCourseModel.CourseId);
var user = await _context.Users.FindAsync(subscribeToCourseModel.StudentId);
if (course != null && user != null)
{
var startingDate = DateTimeOffset.FromUnixTimeMilliseconds(subscribeToCourseModel.EnrollmentDate).UtcDateTime;
var userCourseModel = new UserCourseModel
{
CourseId = course.Id,
StudentId = user.Id,
StartDate = startingDate,
EndDate = startingDate.AddDays((double)course.DurationDays)
};
var userCourse = _mapper.Map <UserCourse>(userCourseModel);
_context.UserCourses.Add(userCourse);
await _context.SaveChangesAsync();
await SendScheduledEmailBackgroundAsync(userCourseModel.StartDate, user.Email, user.Id);
return(_mapper.Map <CourseModel>(course));
}
return(null);
}
public async Task <UserCourseModel> Add(UserCourseModel model)
{
try
{
var entity = _mapper.Map <UserCourse>(model);
await _repository.Insert(entity);
return(model);
}
catch (Exception)
{
throw;
}
}
public async Task <IActionResult> UnSubscribeFromCourse(UserCourseModel userCourseModel)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var course = await _courseService.UnSubscribeFromCourseAsync(userCourseModel);
if (course != null)
{
return(Ok(course));
}
return(BadRequest(new { title = "Couldnt unsubscribe to course" }));
}
public IActionResult Register(long id)
{
var course = _context.Courses.FirstOrDefault(x => x.Id == id);
if (course.PaymentRequired && course.Price > 0.00m)
{
return(RedirectToAction("Checkout", "Transaction", new { id = course.Id }));
}
var entity = new UserCourseModel
{
UserId = long.Parse(User.FindFirst(ClaimTypes.NameIdentifier).Value),
CourseId = id
};
if (_context.UserCourses.Where(x => x.CourseId == id && x.UserId == entity.UserId) != null)
{
_context.Add(entity);
_context.SaveChanges();
}
return(RedirectToAction(nameof(MyCourses)));
}
public async Task <UserCourseModel> Update(UserCourseModel model)
{
try
{
var entity = await _repository.Find(model.Id);
if (entity == null)
{
throw new Exception("UserCourse not found");
}
_mapper.Map(model, entity);
await _repository.Update(entity);
return(model);
}
catch (Exception)
{
throw;
}
}
public IEnumerable <UserCourseModel> GetChildrenCourse(int id)
{
HashSet <int> childrenIds = new HashSet <int>(_context.Families.Where(family => family.ParentId == id).Select(family => family.StudentId));
List <User> children = _context.Users.Where(u => childrenIds.Contains(u.Id)).ToList();
List <UserCourseModel> res = new List <UserCourseModel>();
foreach (User child in children)
{
HashSet <int> coursesChildTake = new HashSet <int>(_context.Enrollments.Where(enroll => enroll.StudentId == child.Id).Select(enroll => enroll.CourseId));
var currChildCourses = _context.Courses.Where(c => coursesChildTake.Contains(c.Id));
UserCourseModel model = new UserCourseModel
{
Id = child.Id,
FirstName = child.FirstName,
LastName = child.LastName,
Username = child.Username,
Courses = currChildCourses.ToList()
};
res.Add(model);
}
return(res);
}
