public async Task <IActionResult> CreateShift(ShiftModel model)
{
if (!await EmployeeExists(model.EmployeeId))
{
return(new NotFoundResult());
}
var shift = model.ToShift();
if (await _shiftRepository.IsEmployeeAlreadyAssignedAShift(shift, model.EmployeeId))
{
return(new BadRequestObjectResult("A shift is already assigned to the employee."));
}
_shiftRepository.CreateShift(shift);
await _shiftRepository.SaveChanges();
return(new OkResult());
}