/**
  * @see \Simresults\Data_Reader::readSessions()
  */
 protected function readSessions()
 {
     // Get data
     $data = json_decode($this->data, TRUE);
     // Get date
     preg_match('/\\d{10}/i', $data['Time'], $time_matches);
     $date = new \DateTime();
     $date->setTimestamp($time_matches[0]);
     $date->setTimezone(new \DateTimeZone(self::$default_timezone));
     // Get other settings
     $other_settings = array();
     $known_setting_keys = array('Experience', 'Difficulty', 'FuelUsage', 'MechanicalDamage', 'FlagRules', 'CutRules', 'RaceSeriesFormat', 'WreckerPrevention', 'MandatoryPitstop', 'MandatoryPitstop');
     foreach ($known_setting_keys as $setting) {
         if ($setting_value = Helper::arrayGet($data, $setting)) {
             $other_settings[$setting] = $setting_value;
         }
     }
     // Init sessions array
     $sessions = array();
     // Gather all sessions
     foreach ($data['Sessions'] as $session_data) {
         // Init session
         $session = Session::createInstance();
         // Practice session by default
         $type = Session::TYPE_PRACTICE;
         // Check session type
         switch (strtolower($name = $session_data['Type'])) {
             case 'qualify':
                 $type = Session::TYPE_QUALIFY;
                 break;
             case 'warmup':
                 $type = Session::TYPE_WARMUP;
                 break;
             case 'race':
                 $type = Session::TYPE_RACE;
                 break;
         }
         // Set session values
         $session->setType($type)->setDate($date)->setOtherSettings($other_settings);
         // Set game
         $game = new Game();
         $game->setName('RaceRoom Racing Experience');
         $session->setGame($game);
         // Set server
         $server = new Server();
         $server->setName(Helper::arrayGet($data, 'Server'));
         $session->setServer($server);
         // Set track
         $track = new Track();
         $track->setVenue(Helper::arrayGet($data, 'Track'));
         $session->setTrack($track);
         // Get participants and their best lap (only lap)
         $participants = array();
         $players_data = Helper::arrayGet($session_data, 'Players', array());
         foreach ($players_data as $player_index => $player_data) {
             // Create driver
             $driver = new Driver();
             // Has name
             if ($name = Helper::arrayGet($player_data, 'Username') or $name = Helper::arrayGet($player_data, 'FullName')) {
                 $driver->setName($name);
             } else {
                 $driver->setName('unknown');
             }
             // Create participant and add driver
             $participant = Participant::createInstance();
             $participant->setDrivers(array($driver))->setPosition(Helper::arrayGet($player_data, 'Position', null));
             // Has finish status
             if ($status = Helper::arrayGet($player_data, 'FinishStatus')) {
                 // Figure out status
                 switch (strtolower($status)) {
                     case 'finished':
                         $participant->setFinishStatus(Participant::FINISH_NORMAL);
                         break;
                     case 'disqualified':
                         $participant->setFinishStatus(Participant::FINISH_DQ);
                         break;
                     default:
                         $participant->setFinishStatus(Participant::FINISH_DNF);
                         break;
                 }
             } else {
                 $participant->setFinishStatus(Participant::FINISH_NORMAL);
             }
             // Has total time
             if ($total_time = Helper::arrayGet($player_data, 'TotalTime')) {
                 $participant->setTotalTime(round($player_data['TotalTime'] / 1000, 4));
             }
             // Create vehicle and add to participant
             $vehicle = new Vehicle();
             $vehicle->setName(Helper::arrayGet($player_data, 'Car'));
             $participant->setVehicle($vehicle);
             // Has laps
             if ($laps = Helper::arrayGet($player_data, 'RaceSessionLaps')) {
                 foreach ($laps as $lap_key => $lap_data) {
                     // Negative lap time, skip
                     if ($lap_data['Time'] < 0) {
                         continue;
                     }
                     // Init new lap
                     $lap = new Lap();
                     // Set participant
                     $lap->setParticipant($participant);
                     // Set first driver of participant as lap driver. RR does
                     // not support swapping
                     $lap->setDriver($participant->getDriver());
                     // Set lap data
                     $lap->setNumber($lap_key + 1);
                     $lap->setPosition($lap_data['Position']);
                     $lap->setPitLap($lap_data['PitStopOccured']);
                     $lap->setTime(round($lap_data['Time'] / 1000, 4));
                     // Add lap to participant
                     $participant->addLap($lap);
                 }
             } elseif (0 < ($best_lap = Helper::arrayGet($player_data, 'BestLapTime'))) {
                 // Init new lap
                 $lap = new Lap();
                 // Set participant
                 $lap->setParticipant($participant);
                 // Set first driver of participant as lap driver. RR does
                 // not support swapping
                 $lap->setDriver($participant->getDriver());
                 // Set lap number
                 $lap->setNumber(1);
                 // Set lap time in seconds
                 $lap->setTime(round($best_lap / 1000, 4));
                 // Add lap to participant
                 $participant->addLap($lap);
             }
             // Add participant to collection
             $participants[] = $participant;
         }
         // Add participants to session
         $session->setParticipants($participants);
         // Add session to collection
         $sessions[] = $session;
     }
     // Return all sessions
     return $sessions;
 }