parse.php

@@ -1,29 +1,14 @@
<?php
require_once(__DIR__.'/vendor/autoload.php');
require_once(__DIR__.'/lib/database.php');
require_once(__DIR__.'/lib/fetch.php');
require_once(__DIR__.'/lib/mapper.php');

$logger = new Monolog\Logger('Parse changes');

$sources = [
   'bus' => [
      'gtfsrt' => 'ftp://ztp.krakow.pl/VehiclePositions_A.pb',
      'gtfsrt_file' => 'VehiclePositions_A.pb',
      'ttss' => 'http://91.223.13.70/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles',
      'ttss_file' => 'vehicles_A.json',
      'database' => 'mapping_A.sqlite3',
      'result' => 'mapping_A.json',
   ],
];
require_once(__DIR__.'/lib/vehicle_types.php');
require_once(__DIR__.'/config.php');

foreach($sources as $name => $source) {
   $logger = new Monolog\Logger('fetch_'.$name);
   try {
      foreach(['gtfsrt_file', 'ttss_file', 'database', 'result'] as $field) {
         $source[$field] = __DIR__.'/data/'.$source[$field];
      }
      $source['result_temp'] = $source['result'].'.tmp';
		
      $logger->info('Fetching '.$name.' position data from FTP...');
      $updated = ftp_fetch_if_newer($source['gtfsrt'], $source['gtfsrt_file']);
      if(!$updated) {
@@ -36,8 +21,18 @@
      
      $logger->info('Loading data...');
      $mapper = new Mapper();
		
      $mapper->loadTTSS($source['ttss_file']);
      $timeDifference = time() - $mapper->getTTSSDate();
      if(abs($timeDifference) > 120) {
         throw new Exception('TTSS timestamp difference ('.$timeDifference.'s) is too high, aborting!');
      }
		
      $mapper->loadGTFSRT($source['gtfsrt_file']);
      $timeDifference = time() - $mapper->getGTFSRTDate();
      if(abs($timeDifference) > 120) {
         throw new Exception('GTFSRT timestamp difference ('.$timeDifference.'s) is too high, aborting!');
      }
      
      $db = new Database($source['database']);
      
@@ -57,11 +52,11 @@
      $incorrect = 0;
      $old = 0;
      $maxWeight = 0;
      foreach($mapping as $id => $vehicle) {
      foreach($mapping as $id => $num) {
         $dbVehicle = $db->getById($id);
         if($dbVehicle) {
            $maxWeight = max($maxWeight, $dbVehicle['weight']);
            if((int)substr($vehicle['num'], 2) == (int)$dbVehicle['num']) {
            $maxWeight = max($maxWeight, (int)$dbVehicle['weight']);
            if($num === $dbVehicle['num']) {
               $correct += 1;
            } else {
               $incorrect += 1;
@@ -69,32 +64,26 @@
            continue;
         }
         
         $dbVehicle = $db->getByNum($vehicle['num']);
         if($dbVehicle && $dbVehicle['id'] != $id) {
         $dbVehicle = $db->getByNum($num);
         if($dbVehicle && $dbVehicle['id'] !== $id) {
            $old += 1;
         }
      }

      $logger->info('Weight: '.$weight.', correct: '.$correct.', incorrect: '.$incorrect.', old: '.$old);
      
      $previousMapping = NULL;
      if($incorrect > $correct && $maxWeight > $weight) {
         throw new Exception('Ignoring result due to better data already present');
      } elseif($old > $correct) {
         $logger->warn('Replacing DB data with the new mapping');
         $db->clear();
      } else {
         $previousMapping = @json_decode(@file_get_contents($source['result']), TRUE);
      }
      
      $db->addMapping($mapping);
      
      if(is_array($previousMapping)) {
         $logger->info('Merging previous data with current mapping');
         $mapping = $mapping + $previousMapping;
         ksort($mapping);
      $jsonContent = [];
      foreach($db->getAll() as $vehicle) {
         $jsonContent[$vehicle['id']] = $source['mapper']($vehicle['num']);
      }
      
      $json = json_encode($mapping);
      $json = json_encode($jsonContent);
      if(!file_put_contents($source['result_temp'], $json)) {
         throw new Exception('Result save failed');
      }