/**
  * Show information regarding yearly running goal.
  *
  * @param  Request  $request
  * @return Response
  */
 public function goals(Request $request)
 {
     if (isset($request->goal)) {
         $request->user()->yearly_running_goal = $request->goal;
         $request->user()->save();
     }
     $goal = $request->user()->yearly_running_goal;
     // do the standard metric goal conversion
     if (Auth::user()->measurement_preference == 'feet') {
         $goal = $goal * 1609;
         // convert to miles
     } else {
         $goal = $goal * 1000;
     }
     $last_year = date('Y-12-31', strtotime('-1 year'));
     $miles_to_date = 0;
     $time_to_date = 0;
     $week_of_year = date('W');
     $weeks_left = 52 - $week_of_year;
     $runs = Activity::where('user_id', $request->user()->id)->where('start_date_local', '>', $last_year)->where('type', 'Run')->orderBy('start_date_local', 'asc')->get();
     foreach ($runs as $run) {
         $miles_to_date += $run->distance;
         $time_to_date += $run->moving_time;
     }
     // check to see if the goal has been met
     if ($miles_to_date >= $goal) {
         $miles_to_go = Activity::formatDistance(0);
         $weekly_goal = Activity::formatDistance(0);
     } else {
         $miles_to_go = Activity::formatDistance($goal - $miles_to_date);
         $weekly_goal = Activity::formatDistance(($goal - $miles_to_date) / $weeks_left);
     }
     return view('strava.goals', ['yearly_running_goal' => $request->user()->yearly_running_goal, 'week_of_year' => $week_of_year, 'miles_to_date' => $miles_to_date, 'time_to_date' => Activity::formatTime($time_to_date)]);
 }