| 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 { | |
| 9afb6b | 8 | private $ttssDate = NULL; |
| 0c85a7 | 9 | private $ttssTrips = []; |
| 9afb6b | 10 | private $gtfsrtDate = NULL; |
| 0c85a7 | 11 | private $gtfsrtTrips = []; |
| 4673cc | 12 | private $logger = NULL; |
| JK | 13 | |
| 14 | private $specialNames = [ | |
| 15 | 'Zjazd do zajezdni', | |
| 16 | 'Przejazd techniczny', | |
| 17 | 'Wyjazd na trasę', | |
| 18 | ]; | |
| 19 | ||
| 20 | public function __construct() { | |
| 21 | $this->logger = new Monolog\Logger(__CLASS__); | |
| 22 | } | |
| 23 | ||
| 24 | public static function convertTripId($tripId) { | |
| 25 | $tripId = explode('_', $tripId); | |
| 26 | if($tripId[0] != 'block') return; | |
| 27 | if($tripId[2] != 'trip') return; | |
| 28 | return 4096 * (int)$tripId[1] + (int)$tripId[3]; | |
| 29 | } | |
| 30 | ||
| 31 | public function loadTTSS($file) { | |
| 0c85a7 | 32 | $ttss = json_decode(file_get_contents($file)); |
| 9afb6b | 33 | $this->ttssDate = $ttss->lastUpdate; |
| 0c85a7 | 34 | foreach($ttss->vehicles as $vehicle) { |
| 4673cc | 35 | if(isset($vehicle->isDeleted) && $vehicle->isDeleted) continue; |
| JK | 36 | if(!isset($vehicle->tripId) || !$vehicle->tripId) continue; |
| 37 | if(!isset($vehicle->name) || !$vehicle->name) continue; | |
| 38 | if(!isset($vehicle->latitude) || !$vehicle->latitude) continue; | |
| 39 | if(!isset($vehicle->longitude) || !$vehicle->longitude) continue; | |
| 40 | foreach($this->specialNames as $name) { | |
| 41 | if(substr($vehicle->name, -strlen($name)) == $name) { | |
| 42 | continue; | |
| 43 | } | |
| 44 | } | |
| 0c85a7 | 45 | $this->ttssTrips[(int)$vehicle->tripId] = [ |
| 4673cc | 46 | 'id' => $vehicle->id, |
| JK | 47 | 'latitude' => (float)$vehicle->latitude / 3600000.0, |
| 48 | 'longitude' => (float)$vehicle->longitude / 3600000.0, | |
| 49 | ]; | |
| 50 | } | |
| 0c85a7 | 51 | ksort($this->ttssTrips); |
| 4673cc | 52 | } |
| JK | 53 | |
| 9afb6b | 54 | public function getTTSSDate() { |
| JK | 55 | return $this->ttssDate / 1000.0; |
| 56 | } | |
| 57 | ||
| 0c85a7 | 58 | public function loadGTFSRT($file) { |
| 4673cc | 59 | $data = file_get_contents($file); |
| JK | 60 | $feed = new FeedMessage(); |
| 61 | $feed->parse($data); | |
| 9afb6b | 62 | $this->gtfsrtDate = $feed->header->timestamp; |
| 4673cc | 63 | foreach ($feed->getEntityList() as $entity) { |
| JK | 64 | $vehiclePosition = $entity->getVehicle(); |
| 65 | $position = $vehiclePosition->getPosition(); | |
| 66 | $vehicle = $vehiclePosition->getVehicle(); | |
| 67 | $trip = $vehiclePosition->getTrip(); | |
| 68 | $tripId = $trip->getTripId(); | |
| 0c85a7 | 69 | $this->gtfsrtTrips[self::convertTripId($tripId)] = [ |
| 4673cc | 70 | 'id' => $entity->getId(), |
| JK | 71 | 'num' => $vehicle->getLicensePlate(), |
| 72 | 'tripId' => $tripId, | |
| 73 | 'latitude' => $position->getLatitude(), | |
| 74 | 'longitude' => $position->getLongitude(), | |
| 75 | ]; | |
| 76 | } | |
| 0c85a7 | 77 | ksort($this->gtfsrtTrips); |
| 4673cc | 78 | } |
| JK | 79 | |
| 9afb6b | 80 | public function getGTFSRTDate() { |
| JK | 81 | return $this->gtfsrtDate; |
| 82 | } | |
| 83 | ||
| 4673cc | 84 | public function findOffset() { |
| 0c85a7 | 85 | if(count($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) { |
| 4673cc | 86 | return NULL; |
| JK | 87 | } |
| 88 | ||
| 0c85a7 | 89 | $ttssTripIds = array_keys($this->ttssTrips); |
| JK | 90 | $gtfsTripIds = array_keys($this->gtfsrtTrips); |
| 4673cc | 91 | |
| JK | 92 | $possibleOffsets = []; |
| 0c85a7 | 93 | for($i = 0; $i < count($this->ttssTrips); $i++) { |
| JK | 94 | for($j = 0; $j < count($this->gtfsrtTrips); $j++) { |
| 95 | $possibleOffsets[$ttssTripIds[$i] - $gtfsTripIds[$j]] = TRUE; | |
| 4673cc | 96 | } |
| JK | 97 | } |
| 98 | $possibleOffsets = array_keys($possibleOffsets); | |
| 99 | ||
| 100 | $bestOffset = 0; | |
| 101 | $maxMatched = 0; | |
| 102 | $options = 0; | |
| 103 | ||
| 104 | foreach($possibleOffsets as $offset) { | |
| 105 | $matched = 0; | |
| 106 | ||
| 107 | foreach($gtfsTripIds as $tripId) { | |
| 108 | $tripId += $offset; | |
| 0c85a7 | 109 | if(isset($this->ttssTrips[$tripId])) { |
| 4673cc | 110 | $matched++; |
| JK | 111 | } |
| 112 | } | |
| 113 | ||
| 114 | if($matched > $maxMatched) { | |
| 115 | $bestOffset = $offset; | |
| 116 | $maxMatched = $matched; | |
| 117 | $options = 1; | |
| 118 | } elseif($matched == $maxMatched) { | |
| 119 | $options++; | |
| 120 | } | |
| 121 | } | |
| 122 | ||
| 123 | if($options != 1) { | |
| 124 | throw new Exception('Found '.$options.' possible mappings!'); | |
| 125 | } | |
| 126 | return $bestOffset; | |
| 127 | } | |
| 128 | ||
| 9970fb | 129 | public function mapUsingOffset($offset, $mapper) { |
| 4673cc | 130 | $result = []; |
| 0c85a7 | 131 | foreach($this->gtfsrtTrips as $gtfsTripId => $gtfsTrip) { |
| JK | 132 | $ttssTripId = $gtfsTripId + $offset; |
| 133 | if(isset($this->ttssTrips[$ttssTripId])) { | |
| 9970fb | 134 | $data = $mapper($gtfsTrip['id']); |
| 4673cc | 135 | $num = $gtfsTrip['num']; |
| JK | 136 | if(!is_array($data) || !isset($data['num'])) { |
| 137 | $data = [ | |
| 138 | 'num' => $num, | |
| 139 | 'low' => 2, | |
| 140 | ]; | |
| 141 | } elseif($data['num'] != $num) { | |
| 142 | // Ignore due to incorrect depot markings in the data | |
| 143 | //$this->logger->warn('Got '.$num.', database has '.$data['num']); | |
| 144 | } | |
| 0c85a7 | 145 | $result[$this->ttssTrips[$ttssTripId]['id']] = $data; |
| 4673cc | 146 | } |
| JK | 147 | } |
| 148 | return $result; | |
| 149 | } | |
| 150 | } | |
