| 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 | $sources = [ |
| JK | 9 | 'buses' => [ |
| 10 | 'gtfs' => 'ftp://ztp.krakow.pl/VehiclePositions_A.pb', | |
| 11 | 'gtfs_file' => 'VehiclePositions_A.pb', | |
| 12 | 'ttss' => 'http://91.223.13.70/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles', | |
| 13 | 'ttss_file' => 'vehicles_A.json', | |
| 1a98b6 | 14 | 'database' => 'mapping_A.sqlite3', |
| 914dc8 | 15 | 'result' => 'mapping_A.json', |
| 4673cc | 16 | ], |
| JK | 17 | ]; |
| 138f39 | 18 | |
| 4673cc | 19 | foreach($sources as $name => $source) { |
| JK | 20 | $logger = new Monolog\Logger('fetch_'.$name); |
| 21 | try { | |
| 1a98b6 | 22 | foreach(['gtfs_file', 'ttss_file', 'database', 'result'] as $field) { |
| JK | 23 | $source[$field] = __DIR__.'/data/'.$source[$field]; |
| 24 | } | |
| 25 | $source['result_temp'] = $source['result'].'.tmp'; | |
| 26 | ||
| 4673cc | 27 | $logger->info('Fetching '.$name.' position data from FTP...'); |
| 1a98b6 | 28 | $updated = ftp_fetch_if_newer($source['gtfs'], $source['gtfs_file']); |
| 4673cc | 29 | if(!$updated) { |
| JK | 30 | $logger->info('Nothing to do, remote file not newer than local one'); |
| 31 | continue; | |
| 32 | } | |
| 33 | ||
| 34 | $logger->info('Fetching '.$name.' positions from TTSS...'); | |
| 1a98b6 | 35 | fetch($source['ttss'],$source['ttss_file']); |
| 4673cc | 36 | |
| JK | 37 | $logger->info('Loading data...'); |
| 38 | $mapper = new Mapper(); | |
| 1a98b6 | 39 | $mapper->loadTTSS($source['ttss_file']); |
| JK | 40 | $mapper->loadGTFS($source['gtfs_file']); |
| 41 | ||
| 42 | $db = new Database($source['database']); | |
| 4673cc | 43 | |
| JK | 44 | $logger->info('Finding correct offset...'); |
| 45 | $offset = $mapper->findOffset(); | |
| 1a98b6 | 46 | if(!$offset) { |
| JK | 47 | throw new Exception('Offset not found'); |
| 4673cc | 48 | } |
| 1a98b6 | 49 | |
| JK | 50 | $logger->info('Got offset '.$offset.', creating mapping...'); |
| 51 | $mapping = $mapper->getMapping($offset); | |
| 52 | ||
| 53 | $logger->info('Checking the data for correctness...'); | |
| 54 | $weight = count($mapping); | |
| 33182e | 55 | |
| JK | 56 | $correct = 0; |
| 57 | $incorrect = 0; | |
| 58 | $old = 0; | |
| 59 | $maxWeight = 0; | |
| 1a98b6 | 60 | foreach($mapping as $id => $vehicle) { |
| JK | 61 | $dbVehicle = $db->getById($id); |
| 62 | if($dbVehicle) { | |
| 33182e | 63 | $maxWeight = max($maxWeight, $dbVehicle['weight']); |
| JK | 64 | if((int)substr($vehicle['num'], 2) == (int)$dbVehicle['num']) { |
| 65 | $correct += 1; | |
| 66 | } else { | |
| 67 | $incorrect += 1; | |
| 1a98b6 | 68 | } |
| JK | 69 | continue; |
| 70 | } | |
| 71 | ||
| 72 | $dbVehicle = $db->getByNum($vehicle['num']); | |
| 73 | if($dbVehicle && $dbVehicle['id'] != $id) { | |
| 33182e | 74 | $old += 1; |
| 1a98b6 | 75 | } |
| JK | 76 | } |
| 33182e | 77 | $logger->info('Weight: '.$weight.', correct: '.$correct.', incorrect: '.$incorrect.', old: '.$old); |
| 1a98b6 | 78 | |
| JK | 79 | $previousMapping = NULL; |
| 33182e | 80 | if($incorrect > $correct && $maxWeight > $weight) { |
| 1a98b6 | 81 | throw new Exception('Ignoring result due to better data already present'); |
| 33182e | 82 | } elseif($old > 0 && $incorrect == 0) { |
| JK | 83 | $logger->warn('Replacing DB data with the new mapping'); |
| 1a98b6 | 84 | $db->clear(); |
| JK | 85 | } else { |
| 86 | $previousMapping = @json_decode(@file_get_contents($source['result']), TRUE); | |
| 87 | } | |
| 88 | ||
| 89 | $db->addMapping($mapping); | |
| 90 | ||
| 91 | if(is_array($previousMapping)) { | |
| 92 | $logger->info('Merging previous data with current mapping'); | |
| 93 | $mapping = $previousMapping + $mapping; | |
| 94 | ksort($mapping); | |
| 95 | } | |
| 96 | ||
| 97 | $json = json_encode($mapping); | |
| 98 | if(!file_put_contents($source['result_temp'], $json)) { | |
| 99 | throw new Exception('Result save failed'); | |
| 100 | } | |
| 101 | rename($source['result_temp'], $source['result']); | |
| 4673cc | 102 | $logger->info('Finished'); |
| JK | 103 | } catch(Throwable $e) { |
| 104 | $logger->error($e->getMessage(), ['exception' => $e, 'exception_string' => (string)$e]); | |
| 105 | } | |
| 138f39 | 106 | } |
