| commit | author | age | ||
| 4673cc | 1 | <?php |
| JK | 2 | use transit_realtime\FeedMessage; |
| 3 | ||
| 4 | class Mapper { | |
| 9afb6b | 5 | private $ttssDate = NULL; |
| 0c85a7 | 6 | private $ttssTrips = []; |
| 9afb6b | 7 | private $gtfsrtDate = NULL; |
| 0c85a7 | 8 | private $gtfsrtTrips = []; |
| 4673cc | 9 | private $logger = NULL; |
| JK | 10 | |
| 11 | private $specialNames = [ | |
| 12 | 'Zjazd do zajezdni', | |
| 13 | 'Przejazd techniczny', | |
| 14 | 'Wyjazd na trasę', | |
| 15 | ]; | |
| 16 | ||
| 17 | public function __construct() { | |
| 18 | $this->logger = new Monolog\Logger(__CLASS__); | |
| 19 | } | |
| 20 | ||
| 21 | public static function convertTripId($tripId) { | |
| 22 | $tripId = explode('_', $tripId); | |
| 23 | if($tripId[0] != 'block') return; | |
| 24 | if($tripId[2] != 'trip') return; | |
| 25 | return 4096 * (int)$tripId[1] + (int)$tripId[3]; | |
| 26 | } | |
| 27 | ||
| 28 | public function loadTTSS($file) { | |
| 0c85a7 | 29 | $ttss = json_decode(file_get_contents($file)); |
| 9afb6b | 30 | $this->ttssDate = $ttss->lastUpdate; |
| 0c85a7 | 31 | foreach($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 | } | |
| 7b7026 | 42 | $this->ttssTrips[(string)$vehicle->tripId] = [ |
| JK | 43 | 'id' => (string)$vehicle->id, |
| 4673cc | 44 | 'latitude' => (float)$vehicle->latitude / 3600000.0, |
| JK | 45 | 'longitude' => (float)$vehicle->longitude / 3600000.0, |
| 46 | ]; | |
| 47 | } | |
| 0c85a7 | 48 | ksort($this->ttssTrips); |
| 4673cc | 49 | } |
| JK | 50 | |
| 9afb6b | 51 | public function getTTSSDate() { |
| JK | 52 | return $this->ttssDate / 1000.0; |
| 53 | } | |
| 54 | ||
| 0c85a7 | 55 | public function loadGTFSRT($file) { |
| 4673cc | 56 | $data = file_get_contents($file); |
| JK | 57 | $feed = new FeedMessage(); |
| 58 | $feed->parse($data); | |
| 9afb6b | 59 | $this->gtfsrtDate = $feed->header->timestamp; |
| 4673cc | 60 | foreach ($feed->getEntityList() as $entity) { |
| JK | 61 | $vehiclePosition = $entity->getVehicle(); |
| 62 | $position = $vehiclePosition->getPosition(); | |
| 63 | $vehicle = $vehiclePosition->getVehicle(); | |
| 64 | $trip = $vehiclePosition->getTrip(); | |
| 65 | $tripId = $trip->getTripId(); | |
| 0c85a7 | 66 | $this->gtfsrtTrips[self::convertTripId($tripId)] = [ |
| 7b7026 | 67 | 'id' => (string)$entity->getId(), |
| 4673cc | 68 | 'num' => $vehicle->getLicensePlate(), |
| JK | 69 | 'tripId' => $tripId, |
| 70 | 'latitude' => $position->getLatitude(), | |
| 71 | 'longitude' => $position->getLongitude(), | |
| 72 | ]; | |
| 73 | } | |
| 0c85a7 | 74 | ksort($this->gtfsrtTrips); |
| 4673cc | 75 | } |
| JK | 76 | |
| 9afb6b | 77 | public function getGTFSRTDate() { |
| JK | 78 | return $this->gtfsrtDate; |
| 79 | } | |
| 80 | ||
| 4673cc | 81 | public function findOffset() { |
| 0c85a7 | 82 | if(count($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) { |
| 4673cc | 83 | return NULL; |
| JK | 84 | } |
| 85 | ||
| 0c85a7 | 86 | $ttssTripIds = array_keys($this->ttssTrips); |
| JK | 87 | $gtfsTripIds = array_keys($this->gtfsrtTrips); |
| 4673cc | 88 | |
| JK | 89 | $possibleOffsets = []; |
| 0c85a7 | 90 | for($i = 0; $i < count($this->ttssTrips); $i++) { |
| JK | 91 | for($j = 0; $j < count($this->gtfsrtTrips); $j++) { |
| 92 | $possibleOffsets[$ttssTripIds[$i] - $gtfsTripIds[$j]] = TRUE; | |
| 4673cc | 93 | } |
| JK | 94 | } |
| 95 | $possibleOffsets = array_keys($possibleOffsets); | |
| 96 | ||
| 97 | $bestOffset = 0; | |
| 98 | $maxMatched = 0; | |
| 99 | $options = 0; | |
| 100 | ||
| 101 | foreach($possibleOffsets as $offset) { | |
| 102 | $matched = 0; | |
| 103 | ||
| 104 | foreach($gtfsTripIds as $tripId) { | |
| 105 | $tripId += $offset; | |
| 0c85a7 | 106 | if(isset($this->ttssTrips[$tripId])) { |
| 4673cc | 107 | $matched++; |
| JK | 108 | } |
| 109 | } | |
| 110 | ||
| 111 | if($matched > $maxMatched) { | |
| 112 | $bestOffset = $offset; | |
| 113 | $maxMatched = $matched; | |
| 114 | $options = 1; | |
| 115 | } elseif($matched == $maxMatched) { | |
| 116 | $options++; | |
| 117 | } | |
| 118 | } | |
| 119 | ||
| 120 | if($options != 1) { | |
| 121 | throw new Exception('Found '.$options.' possible mappings!'); | |
| 122 | } | |
| 123 | return $bestOffset; | |
| 124 | } | |
| 125 | ||
| 7b7026 | 126 | public function mapUsingOffset($offset) { |
| 4673cc | 127 | $result = []; |
| 0c85a7 | 128 | foreach($this->gtfsrtTrips as $gtfsTripId => $gtfsTrip) { |
| JK | 129 | $ttssTripId = $gtfsTripId + $offset; |
| 130 | if(isset($this->ttssTrips[$ttssTripId])) { | |
| 7b7026 | 131 | $result[$this->ttssTrips[$ttssTripId]['id']] = $gtfsTrip['id']; |
| 4673cc | 132 | } |
| JK | 133 | } |
| 134 | return $result; | |
| 135 | } | |
| 136 | } | |
