| commit | author | age | ||
| 4673cc | 1 | <?php |
| JK | 2 | require_once(__DIR__.'/../vendor/autoload.php'); |
| 3 | require_once(__DIR__.'/vehicle_types.php'); | |
| 4 | ||
| 5 | use transit_realtime\FeedMessage; | |
| 6 | ||
| 7 | class Mapper { | |
| 0c85a7 | 8 | private $ttssTrips = []; |
| JK | 9 | private $gtfsrtTrips = []; |
| 4673cc | 10 | private $logger = NULL; |
| JK | 11 | |
| 12 | private $specialNames = [ | |
| 13 | 'Zjazd do zajezdni', | |
| 14 | 'Przejazd techniczny', | |
| 15 | 'Wyjazd na trasę', | |
| 16 | ]; | |
| 17 | ||
| 18 | public function __construct() { | |
| 19 | $this->logger = new Monolog\Logger(__CLASS__); | |
| 20 | } | |
| 21 | ||
| 22 | public static function convertTripId($tripId) { | |
| 23 | $tripId = explode('_', $tripId); | |
| 24 | if($tripId[0] != 'block') return; | |
| 25 | if($tripId[2] != 'trip') return; | |
| 26 | return 4096 * (int)$tripId[1] + (int)$tripId[3]; | |
| 27 | } | |
| 28 | ||
| 29 | public function loadTTSS($file) { | |
| 0c85a7 | 30 | $ttss = json_decode(file_get_contents($file)); |
| JK | 31 | foreach($ttss->vehicles as $vehicle) { |
| 4673cc | 32 | if(isset($vehicle->isDeleted) && $vehicle->isDeleted) continue; |
| JK | 33 | if(!isset($vehicle->tripId) || !$vehicle->tripId) continue; |
| 34 | if(!isset($vehicle->name) || !$vehicle->name) continue; | |
| 35 | if(!isset($vehicle->latitude) || !$vehicle->latitude) continue; | |
| 36 | if(!isset($vehicle->longitude) || !$vehicle->longitude) continue; | |
| 37 | foreach($this->specialNames as $name) { | |
| 38 | if(substr($vehicle->name, -strlen($name)) == $name) { | |
| 39 | continue; | |
| 40 | } | |
| 41 | } | |
| 0c85a7 | 42 | $this->ttssTrips[(int)$vehicle->tripId] = [ |
| 4673cc | 43 | 'id' => $vehicle->id, |
| JK | 44 | 'latitude' => (float)$vehicle->latitude / 3600000.0, |
| 45 | 'longitude' => (float)$vehicle->longitude / 3600000.0, | |
| 46 | ]; | |
| 47 | } | |
| 0c85a7 | 48 | ksort($this->ttssTrips); |
| 4673cc | 49 | } |
| JK | 50 | |
| 0c85a7 | 51 | public function loadGTFSRT($file) { |
| 4673cc | 52 | $data = file_get_contents($file); |
| JK | 53 | $feed = new FeedMessage(); |
| 54 | $feed->parse($data); | |
| 55 | foreach ($feed->getEntityList() as $entity) { | |
| 56 | $vehiclePosition = $entity->getVehicle(); | |
| 57 | $position = $vehiclePosition->getPosition(); | |
| 58 | $vehicle = $vehiclePosition->getVehicle(); | |
| 59 | $trip = $vehiclePosition->getTrip(); | |
| 60 | $tripId = $trip->getTripId(); | |
| 0c85a7 | 61 | $this->gtfsrtTrips[self::convertTripId($tripId)] = [ |
| 4673cc | 62 | 'id' => $entity->getId(), |
| JK | 63 | 'num' => $vehicle->getLicensePlate(), |
| 64 | 'tripId' => $tripId, | |
| 65 | 'latitude' => $position->getLatitude(), | |
| 66 | 'longitude' => $position->getLongitude(), | |
| 67 | ]; | |
| 68 | } | |
| 0c85a7 | 69 | ksort($this->gtfsrtTrips); |
| 4673cc | 70 | } |
| JK | 71 | |
| 72 | public function findOffset() { | |
| 0c85a7 | 73 | if(count($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) { |
| 4673cc | 74 | return NULL; |
| JK | 75 | } |
| 76 | ||
| 0c85a7 | 77 | $ttssTripIds = array_keys($this->ttssTrips); |
| JK | 78 | $gtfsTripIds = array_keys($this->gtfsrtTrips); |
| 4673cc | 79 | |
| JK | 80 | $possibleOffsets = []; |
| 0c85a7 | 81 | for($i = 0; $i < count($this->ttssTrips); $i++) { |
| JK | 82 | for($j = 0; $j < count($this->gtfsrtTrips); $j++) { |
| 83 | $possibleOffsets[$ttssTripIds[$i] - $gtfsTripIds[$j]] = TRUE; | |
| 4673cc | 84 | } |
| JK | 85 | } |
| 86 | $possibleOffsets = array_keys($possibleOffsets); | |
| 87 | ||
| 88 | $bestOffset = 0; | |
| 89 | $maxMatched = 0; | |
| 90 | $options = 0; | |
| 91 | ||
| 92 | foreach($possibleOffsets as $offset) { | |
| 93 | $matched = 0; | |
| 94 | ||
| 95 | foreach($gtfsTripIds as $tripId) { | |
| 96 | $tripId += $offset; | |
| 0c85a7 | 97 | if(isset($this->ttssTrips[$tripId])) { |
| 4673cc | 98 | $matched++; |
| JK | 99 | } |
| 100 | } | |
| 101 | ||
| 102 | if($matched > $maxMatched) { | |
| 103 | $bestOffset = $offset; | |
| 104 | $maxMatched = $matched; | |
| 105 | $options = 1; | |
| 106 | } elseif($matched == $maxMatched) { | |
| 107 | $options++; | |
| 108 | } | |
| 109 | } | |
| 110 | ||
| 111 | if($options != 1) { | |
| 112 | throw new Exception('Found '.$options.' possible mappings!'); | |
| 113 | } | |
| 114 | return $bestOffset; | |
| 115 | } | |
| 116 | ||
| 0c85a7 | 117 | public function mapUsingOffset($offset) { |
| 4673cc | 118 | $result = []; |
| 0c85a7 | 119 | foreach($this->gtfsrtTrips as $gtfsTripId => $gtfsTrip) { |
| JK | 120 | $ttssTripId = $gtfsTripId + $offset; |
| 121 | if(isset($this->ttssTrips[$ttssTripId])) { | |
| 4673cc | 122 | $data = numToTypeB($gtfsTrip['id']); |
| JK | 123 | $num = $gtfsTrip['num']; |
| 124 | if(!is_array($data) || !isset($data['num'])) { | |
| 125 | $data = [ | |
| 126 | 'num' => $num, | |
| 127 | 'low' => 2, | |
| 128 | ]; | |
| 129 | } elseif($data['num'] != $num) { | |
| 130 | // Ignore due to incorrect depot markings in the data | |
| 131 | //$this->logger->warn('Got '.$num.', database has '.$data['num']); | |
| 132 | } | |
| 0c85a7 | 133 | $result[$this->ttssTrips[$ttssTripId]['id']] = $data; |
| 4673cc | 134 | } |
| JK | 135 | } |
| 136 | return $result; | |
| 137 | } | |
| 138 | } | |
