| 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 | $sources = [ |
| 0c85a7 | 9 | 'bus' => [ |
| JK | 10 | 'gtfsrt' => 'ftp://ztp.krakow.pl/VehiclePositions_A.pb', |
| 11 | 'gtfsrt_file' => 'VehiclePositions_A.pb', | |
| a2010c | 12 | 'ttss' => 'http://ttss.mpk.krakow.pl/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles', |
| 4673cc | 13 | 'ttss_file' => 'vehicles_A.json', |
| 1a98b6 | 14 | 'database' => 'mapping_A.sqlite3', |
| 914dc8 | 15 | 'result' => 'mapping_A.json', |
| 9970fb | 16 | 'mapper' => 'numToTypeB', |
| 4673cc | 17 | ], |
| JK | 18 | ]; |
| 138f39 | 19 | |
| 4673cc | 20 | foreach($sources as $name => $source) { |
| JK | 21 | $logger = new Monolog\Logger('fetch_'.$name); |
| 22 | try { | |
| 0c85a7 | 23 | foreach(['gtfsrt_file', 'ttss_file', 'database', 'result'] as $field) { |
| 1a98b6 | 24 | $source[$field] = __DIR__.'/data/'.$source[$field]; |
| JK | 25 | } |
| 26 | $source['result_temp'] = $source['result'].'.tmp'; | |
| 27 | ||
| 4673cc | 28 | $logger->info('Fetching '.$name.' position data from FTP...'); |
| 0c85a7 | 29 | $updated = ftp_fetch_if_newer($source['gtfsrt'], $source['gtfsrt_file']); |
| 4673cc | 30 | if(!$updated) { |
| JK | 31 | $logger->info('Nothing to do, remote file not newer than local one'); |
| 32 | continue; | |
| 33 | } | |
| 34 | ||
| 0c85a7 | 35 | $logger->info('Fetching '.$name.' position data from TTSS...'); |
| JK | 36 | fetch($source['ttss'], $source['ttss_file']); |
| 4673cc | 37 | |
| JK | 38 | $logger->info('Loading data...'); |
| 39 | $mapper = new Mapper(); | |
| 9afb6b | 40 | |
| 1a98b6 | 41 | $mapper->loadTTSS($source['ttss_file']); |
| 9afb6b | 42 | $timeDifference = time() - $mapper->getTTSSDate(); |
| JK | 43 | if(abs($timeDifference) > 60) { |
| 44 | throw new Exception('TTSS timestamp difference ('.$timeDifference.'s) is too high, aborting!'); | |
| 45 | } | |
| 46 | ||
| 0c85a7 | 47 | $mapper->loadGTFSRT($source['gtfsrt_file']); |
| 9afb6b | 48 | $timeDifference = time() - $mapper->getGTFSRTDate(); |
| JK | 49 | if(abs($timeDifference) > 60) { |
| 50 | throw new Exception('GTFSRT timestamp difference ('.$timeDifference.'s) is too high, aborting!'); | |
| 51 | } | |
| 1a98b6 | 52 | |
| JK | 53 | $db = new Database($source['database']); |
| 4673cc | 54 | |
| JK | 55 | $logger->info('Finding correct offset...'); |
| 56 | $offset = $mapper->findOffset(); | |
| 1a98b6 | 57 | if(!$offset) { |
| JK | 58 | throw new Exception('Offset not found'); |
| 4673cc | 59 | } |
| 1a98b6 | 60 | |
| JK | 61 | $logger->info('Got offset '.$offset.', creating mapping...'); |
| 9970fb | 62 | $mapping = $mapper->mapUsingOffset($offset, $source['mapper']); |
| 1a98b6 | 63 | |
| JK | 64 | $logger->info('Checking the data for correctness...'); |
| 65 | $weight = count($mapping); | |
| 33182e | 66 | |
| JK | 67 | $correct = 0; |
| 68 | $incorrect = 0; | |
| 69 | $old = 0; | |
| 70 | $maxWeight = 0; | |
| 1a98b6 | 71 | foreach($mapping as $id => $vehicle) { |
| JK | 72 | $dbVehicle = $db->getById($id); |
| 73 | if($dbVehicle) { | |
| 33182e | 74 | $maxWeight = max($maxWeight, $dbVehicle['weight']); |
| JK | 75 | if((int)substr($vehicle['num'], 2) == (int)$dbVehicle['num']) { |
| 76 | $correct += 1; | |
| 77 | } else { | |
| 78 | $incorrect += 1; | |
| 1a98b6 | 79 | } |
| JK | 80 | continue; |
| 81 | } | |
| 82 | ||
| 83 | $dbVehicle = $db->getByNum($vehicle['num']); | |
| 84 | if($dbVehicle && $dbVehicle['id'] != $id) { | |
| 33182e | 85 | $old += 1; |
| 1a98b6 | 86 | } |
| JK | 87 | } |
| 33182e | 88 | $logger->info('Weight: '.$weight.', correct: '.$correct.', incorrect: '.$incorrect.', old: '.$old); |
| 1a98b6 | 89 | |
| JK | 90 | $previousMapping = NULL; |
| 33182e | 91 | if($incorrect > $correct && $maxWeight > $weight) { |
| 1a98b6 | 92 | throw new Exception('Ignoring result due to better data already present'); |
| 5af1a7 | 93 | } elseif($old > $correct) { |
| 33182e | 94 | $logger->warn('Replacing DB data with the new mapping'); |
| 1a98b6 | 95 | $db->clear(); |
| JK | 96 | } else { |
| 97 | $previousMapping = @json_decode(@file_get_contents($source['result']), TRUE); | |
| 98 | } | |
| 99 | ||
| 100 | $db->addMapping($mapping); | |
| 101 | ||
| 102 | if(is_array($previousMapping)) { | |
| 103 | $logger->info('Merging previous data with current mapping'); | |
| 423dc9 | 104 | $mapping = $mapping + $previousMapping; |
| 1a98b6 | 105 | ksort($mapping); |
| JK | 106 | } |
| 107 | ||
| 108 | $json = json_encode($mapping); | |
| 109 | if(!file_put_contents($source['result_temp'], $json)) { | |
| 110 | throw new Exception('Result save failed'); | |
| 111 | } | |
| 112 | rename($source['result_temp'], $source['result']); | |
| 4673cc | 113 | $logger->info('Finished'); |
| JK | 114 | } catch(Throwable $e) { |
| 115 | $logger->error($e->getMessage(), ['exception' => $e, 'exception_string' => (string)$e]); | |
| 116 | } | |
| 138f39 | 117 | } |
