lib/mapper.php

@@ -1,12 +1,11 @@
<?php
require_once(__DIR__.'/../vendor/autoload.php');
require_once(__DIR__.'/vehicle_types.php');

use transit_realtime\FeedMessage;

class Mapper {
   private $jsonTrips = [];
   private $gtfsTrips = [];
   private $ttssDate = NULL;
   private $ttssTrips = [];
   private $gtfsrtDate = NULL;
   private $gtfsrtTrips = [];
   private $logger = NULL;
   
   private $specialNames = [
@@ -27,60 +26,77 @@
   }
   
   public function loadTTSS($file) {
      $json = json_decode(file_get_contents($file));
      foreach($json->vehicles as $vehicle) {
      $ttss = json_decode(file_get_contents($file));
      $this->ttssDate = $ttss->lastUpdate;
      foreach($ttss->vehicles as $vehicle) {
         if(isset($vehicle->isDeleted) && $vehicle->isDeleted) continue;
         if(!isset($vehicle->tripId) || !$vehicle->tripId) continue;
         if(!isset($vehicle->name) || !$vehicle->name) continue;
         if(!isset($vehicle->latitude) || !$vehicle->latitude) continue;
         if(!isset($vehicle->longitude) || !$vehicle->longitude) continue;
         foreach($this->specialNames as $name) {
            if(substr($vehicle->name, -strlen($name)) == $name) {
         list($line, $direction) = explode(' ', $vehicle->name, 2);
         foreach($this->specialNames as $specialName) {
            if(substr($vehicle->name, -strlen($specialName)) == $specialName) {
               continue;
            }
         }
         $this->jsonTrips[(int)$vehicle->tripId] = [
            'id' => $vehicle->id,
         $this->ttssTrips[(string)$vehicle->tripId] = [
            'id' => (string)$vehicle->id,
            'line' => $line,
            'direction' => $direction,
            'latitude' => (float)$vehicle->latitude / 3600000.0,
            'longitude' => (float)$vehicle->longitude / 3600000.0,
         ];
      }
      ksort($this->jsonTrips);
      ksort($this->ttssTrips);
   }
   
   public function loadGTFS($file) {
   public function getTTSSDate() {
      return $this->ttssDate / 1000.0;
   }
	
   public function getTTSSTrips() {
      return $this->ttssTrips;
   }
	
   public function loadGTFSRT($file) {
      $data = file_get_contents($file);
      $feed = new FeedMessage();
      $feed->parse($data);
      $this->gtfsrtDate = $feed->header->timestamp;
      foreach ($feed->getEntityList() as $entity) {
         $vehiclePosition = $entity->getVehicle();
         $position = $vehiclePosition->getPosition();
         $vehicle = $vehiclePosition->getVehicle();
         $trip = $vehiclePosition->getTrip();
         $tripId = $trip->getTripId();
         $this->gtfsTrips[self::convertTripId($tripId)] = [
            'id' => $entity->getId(),
         $this->gtfsrtTrips[self::convertTripId($tripId)] = [
            'id' => (string)$entity->getId(),
            'num' => $vehicle->getLicensePlate(),
            'tripId' => $tripId,
            'latitude' => $position->getLatitude(),
            'longitude' => $position->getLongitude(),
         ];
      }
      ksort($this->gtfsTrips);
      ksort($this->gtfsrtTrips);
   }
	
   public function getGTFSRTDate() {
      return $this->gtfsrtDate;
   }
   
   public function findOffset() {
      if(count($this->jsonTrips) == 0 || count($this->gtfsTrips) == 0) {
      if(count($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) {
         return NULL;
      }
      
      $jsonTripIds = array_keys($this->jsonTrips);
      $gtfsTripIds = array_keys($this->gtfsTrips);
      $ttssTripIds = array_keys($this->ttssTrips);
      $gtfsTripIds = array_keys($this->gtfsrtTrips);
      
      $possibleOffsets = [];
      for($i = 0; $i < count($this->jsonTrips); $i++) {
         for($j = 0; $j < count($this->gtfsTrips); $j++) {
            $possibleOffsets[$jsonTripIds[$i] - $gtfsTripIds[$j]] = TRUE;
      for($i = 0; $i < count($this->ttssTrips); $i++) {
         for($j = 0; $j < count($this->gtfsrtTrips); $j++) {
            $possibleOffsets[$ttssTripIds[$i] - $gtfsTripIds[$j]] = TRUE;
         }
      }
      $possibleOffsets = array_keys($possibleOffsets);
@@ -94,7 +110,7 @@
         
         foreach($gtfsTripIds as $tripId) {
            $tripId += $offset;
            if(isset($this->jsonTrips[$tripId])) {
            if(isset($this->ttssTrips[$tripId])) {
               $matched++;
            }
         }
@@ -114,23 +130,12 @@
      return $bestOffset;
   }
   
   public function getMapping($offset) {
   public function mapUsingOffset($offset) {
      $result = [];
      foreach($this->gtfsTrips as $gtfsTripId => $gtfsTrip) {
         $jsonTripId = $gtfsTripId + $offset;
         if(isset($this->jsonTrips[$jsonTripId])) {
            $data = numToTypeB($gtfsTrip['id']);
            $num = $gtfsTrip['num'];
            if(!is_array($data) || !isset($data['num'])) {
               $data = [
                  'num' => $num,
                  'low' => 2,
               ];
            } elseif($data['num'] != $num) {
               // Ignore due to incorrect depot markings in the data
               //$this->logger->warn('Got '.$num.', database has '.$data['num']);
            }
            $result[$this->jsonTrips[$jsonTripId]['id']] = $data;
      foreach($this->gtfsrtTrips as $gtfsTripId => $gtfsTrip) {
         $ttssTripId = $gtfsTripId + $offset;
         if(isset($this->ttssTrips[$ttssTripId])) {
            $result[$this->ttssTrips[$ttssTripId]['id']] = $gtfsTrip['id'];
         }
      }
      return $result;