| commit | author | age | ||
| 138f39 | 1 | <?php |
| 1a98b6 | 2 | require_once(__DIR__.'/lib/database.php'); |
| 4673cc | 3 | require_once(__DIR__.'/lib/fetch.php'); |
| JK | 4 | require_once(__DIR__.'/lib/mapper.php'); |
| 138f39 | 5 | |
| 4673cc | 6 | $logger = new Monolog\Logger('Parse changes'); |
| 138f39 | 7 | |
| 4673cc | 8 | $sources = [ |
| 0c85a7 | 9 | 'bus' => [ |
| JK | 10 | 'gtfsrt' => 'ftp://ztp.krakow.pl/VehiclePositions_A.pb', |
| 11 | 'gtfsrt_file' => 'VehiclePositions_A.pb', | |
| a2010c | 12 | 'ttss' => 'http://ttss.mpk.krakow.pl/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles', |
| 4673cc | 13 | 'ttss_file' => 'vehicles_A.json', |
| 1a98b6 | 14 | 'database' => 'mapping_A.sqlite3', |
| 914dc8 | 15 | 'result' => 'mapping_A.json', |
| 4673cc | 16 | ], |
| JK | 17 | ]; |
| 138f39 | 18 | |
| 4673cc | 19 | foreach($sources as $name => $source) { |
| JK | 20 | $logger = new Monolog\Logger('fetch_'.$name); |
| 21 | try { | |
| 0c85a7 | 22 | foreach(['gtfsrt_file', 'ttss_file', 'database', 'result'] as $field) { |
| 1a98b6 | 23 | $source[$field] = __DIR__.'/data/'.$source[$field]; |
| JK | 24 | } |
| 25 | $source['result_temp'] = $source['result'].'.tmp'; | |
| 26 | ||
| 4673cc | 27 | $logger->info('Fetching '.$name.' position data from FTP...'); |
| 0c85a7 | 28 | $updated = ftp_fetch_if_newer($source['gtfsrt'], $source['gtfsrt_file']); |
| 4673cc | 29 | if(!$updated) { |
| JK | 30 | $logger->info('Nothing to do, remote file not newer than local one'); |
| 31 | continue; | |
| 32 | } | |
| 33 | ||
| 0c85a7 | 34 | $logger->info('Fetching '.$name.' position data from TTSS...'); |
| JK | 35 | fetch($source['ttss'], $source['ttss_file']); |
| 4673cc | 36 | |
| JK | 37 | $logger->info('Loading data...'); |
| 38 | $mapper = new Mapper(); | |
| 9afb6b | 39 | |
| 1a98b6 | 40 | $mapper->loadTTSS($source['ttss_file']); |
| 9afb6b | 41 | $timeDifference = time() - $mapper->getTTSSDate(); |
| JK | 42 | if(abs($timeDifference) > 60) { |
| 43 | throw new Exception('TTSS timestamp difference ('.$timeDifference.'s) is too high, aborting!'); | |
| 44 | } | |
| 45 | ||
| 0c85a7 | 46 | $mapper->loadGTFSRT($source['gtfsrt_file']); |
| 9afb6b | 47 | $timeDifference = time() - $mapper->getGTFSRTDate(); |
| JK | 48 | if(abs($timeDifference) > 60) { |
| 49 | throw new Exception('GTFSRT timestamp difference ('.$timeDifference.'s) is too high, aborting!'); | |
| 50 | } | |
| 1a98b6 | 51 | |
| JK | 52 | $db = new Database($source['database']); |
| 4673cc | 53 | |
| JK | 54 | $logger->info('Finding correct offset...'); |
| 55 | $offset = $mapper->findOffset(); | |
| 1a98b6 | 56 | if(!$offset) { |
| JK | 57 | throw new Exception('Offset not found'); |
| 4673cc | 58 | } |
| 1a98b6 | 59 | |
| JK | 60 | $logger->info('Got offset '.$offset.', creating mapping...'); |
| 0c85a7 | 61 | $mapping = $mapper->mapUsingOffset($offset); |
| 1a98b6 | 62 | |
| JK | 63 | $logger->info('Checking the data for correctness...'); |
| 64 | $weight = count($mapping); | |
| 33182e | 65 | |
| JK | 66 | $correct = 0; |
| 67 | $incorrect = 0; | |
| 68 | $old = 0; | |
| 69 | $maxWeight = 0; | |
| 1a98b6 | 70 | foreach($mapping as $id => $vehicle) { |
| JK | 71 | $dbVehicle = $db->getById($id); |
| 72 | if($dbVehicle) { | |
| 33182e | 73 | $maxWeight = max($maxWeight, $dbVehicle['weight']); |
| JK | 74 | if((int)substr($vehicle['num'], 2) == (int)$dbVehicle['num']) { |
| 75 | $correct += 1; | |
| 76 | } else { | |
| 77 | $incorrect += 1; | |
| 1a98b6 | 78 | } |
| JK | 79 | continue; |
| 80 | } | |
| 81 | ||
| 82 | $dbVehicle = $db->getByNum($vehicle['num']); | |
| 83 | if($dbVehicle && $dbVehicle['id'] != $id) { | |
| 33182e | 84 | $old += 1; |
| 1a98b6 | 85 | } |
| JK | 86 | } |
| 33182e | 87 | $logger->info('Weight: '.$weight.', correct: '.$correct.', incorrect: '.$incorrect.', old: '.$old); |
| 1a98b6 | 88 | |
| JK | 89 | $previousMapping = NULL; |
| 33182e | 90 | if($incorrect > $correct && $maxWeight > $weight) { |
| 1a98b6 | 91 | throw new Exception('Ignoring result due to better data already present'); |
| 5af1a7 | 92 | } elseif($old > $correct) { |
| 33182e | 93 | $logger->warn('Replacing DB data with the new mapping'); |
| 1a98b6 | 94 | $db->clear(); |
| JK | 95 | } else { |
| 96 | $previousMapping = @json_decode(@file_get_contents($source['result']), TRUE); | |
| 97 | } | |
| 98 | ||
| 99 | $db->addMapping($mapping); | |
| 100 | ||
| 101 | if(is_array($previousMapping)) { | |
| 102 | $logger->info('Merging previous data with current mapping'); | |
| 423dc9 | 103 | $mapping = $mapping + $previousMapping; |
| 1a98b6 | 104 | ksort($mapping); |
| JK | 105 | } |
| 106 | ||
| 107 | $json = json_encode($mapping); | |
| 108 | if(!file_put_contents($source['result_temp'], $json)) { | |
| 109 | throw new Exception('Result save failed'); | |
| 110 | } | |
| 111 | rename($source['result_temp'], $source['result']); | |
| 4673cc | 112 | $logger->info('Finished'); |
| JK | 113 | } catch(Throwable $e) { |
| 114 | $logger->error($e->getMessage(), ['exception' => $e, 'exception_string' => (string)$e]); | |
| 115 | } | |
| 138f39 | 116 | } |
