public HttpResponseMessage SignupForShiftDay(ShiftDaySignupInput input)
{
var shiftDay = _shiftsService.GetShiftDayById(input.ShiftDayId);
if (shiftDay == null)
{
throw HttpStatusCode.NotFound.AsException();
}
if (shiftDay.Shift != null && shiftDay.Shift.DepartmentId != DepartmentId)
{
throw HttpStatusCode.Unauthorized.AsException();
}
_shiftsService.SignupForShiftDay(shiftDay.ShiftId, shiftDay.Day, input.GroupId, UserId);
return(Request.CreateResponse(HttpStatusCode.Created));
}