/**
  *
  * @param Request $request
  * @return Response
  */
 public function store(Request $request)
 {
     $timer = new Timer($request->only(['start', 'finish']));
     $timer->user()->associate(Auth::user());
     $activity = Activity::find($request->get('activity_id'));
     if (!$activity) {
         $activity = Activity::forCurrentUser()->where('name', 'sleep')->first();
     }
     $timer->activity()->associate($activity);
     $timer->save();
     $timer = $this->transform($this->createItem($timer, new TimerTransformer(['date' => $this->calculateFinishDate($timer)])))['data'];
     return response($timer, Response::HTTP_CREATED);
 }