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| 1 | <?php |
| 2 | namespace MultiMaps; |
| 3 | |
| 4 | use MediaWiki\MediaWikiServices; |
| 5 | |
| 6 | /** |
| 7 | * This class allows you to work with a collection of defined services |
| 8 | * |
| 9 | * @file MapServices.php |
| 10 | * @ingroup MultiMaps |
| 11 | * @author Pavel Astakhov <pastakhov@yandex.ru> |
| 12 | * @license GPL-2.0-or-later |
| 13 | */ |
| 14 | |
| 15 | class MapServices { |
| 16 | |
| 17 | private static $servicesCache = []; |
| 18 | |
| 19 | /** |
| 20 | * Returns the instance of a map service class. |
| 21 | * If the map service is not specified or is not available, returns the default service |
| 22 | * On error returns string with error message |
| 23 | * @global array $egMultiMaps_MapServices |
| 24 | * @param string|null $serviceName |
| 25 | * @return BaseMapService|array Returns class extends \MultiMaps\BaseService or array of error messages |
| 26 | */ |
| 27 | public static function getServiceInstance( $serviceName = null ) { |
| 28 | $services = self::getServicesList(); |
| 29 | if ( is_string( $services ) ) { |
| 30 | return (array)$services; |
| 31 | } |
| 32 | |
| 33 | $errorMessages = []; |
| 34 | $lang = MediaWikiServices::getInstance()->getContentLanguage(); |
| 35 | if ( $serviceName ) { |
| 36 | $lcServiceName = $lang->lc( $serviceName ); |
| 37 | if ( isset( $services[$lcServiceName] ) ) { |
| 38 | $srv = $services[$lcServiceName]; |
| 39 | } else { |
| 40 | $srv = self::getDefaultService( $services ); |
| 41 | $errorMessages[] = wfMessage( |
| 42 | 'multimaps-passed-unavailable-service', |
| 43 | $serviceName, |
| 44 | implode( ', ', array_keys( $services ) ), |
| 45 | is_string( $srv ) ? $srv : $srv['originName'] |
| 46 | )->escaped(); |
| 47 | } |
| 48 | } else { |
| 49 | $srv = self::getDefaultService( $services ); |
| 50 | } |
| 51 | |
| 52 | if ( is_array( $srv ) ) { |
| 53 | if ( !isset( $srv['service'] ) ) { |
| 54 | $errorMessages[] = wfMessage( |
| 55 | 'multimaps-undefined-service-for-layout', |
| 56 | $serviceName |
| 57 | )->escaped(); |
| 58 | return $errorMessages; |
| 59 | } |
| 60 | |
| 61 | $lcServiceName = $lang->lc( $srv['service'] ); |
| 62 | if ( !isset( $services[$lcServiceName] ) ) { |
| 63 | $errorMessages[] = wfMessage( |
| 64 | 'multimaps-wrong-service-for-layout', |
| 65 | $serviceName, |
| 66 | $srv['service'] |
| 67 | )->escaped(); |
| 68 | return $errorMessages; |
| 69 | } |
| 70 | if ( is_array( $services[$lcServiceName] ) ) { |
| 71 | $errorMessages[] = wfMessage( |
| 72 | 'multimaps-layout-defined-for-layout', |
| 73 | $serviceName, |
| 74 | $srv['service'] |
| 75 | )->escaped(); |
| 76 | return $errorMessages; |
| 77 | } |
| 78 | $className = $services[$lcServiceName]; |
| 79 | $layerKey = $srv['originName']; |
| 80 | } else { |
| 81 | $className = $srv; |
| 82 | $layerKey = null; |
| 83 | } |
| 84 | |
| 85 | $newClassName = "MultiMaps\\$className"; |
| 86 | if ( !class_exists( $newClassName ) ) { |
| 87 | $errorMessages[] = wfMessage( 'multimaps-unknown-class-for-service', $newClassName )->escaped(); |
| 88 | return $errorMessages; |
| 89 | } |
| 90 | |
| 91 | $returnService = new $newClassName( $layerKey ); |
| 92 | if ( !( $returnService instanceof BaseMapService ) ) { |
| 93 | $errorMessages[] = wfMessage( 'multimaps-error-incorrect-class-for-service', $newClassName )->escaped(); |
| 94 | return $errorMessages; |
| 95 | } |
| 96 | |
| 97 | if ( $errorMessages ) { |
| 98 | foreach ( $errorMessages as $msg ) { |
| 99 | $returnService->pushErrorMessage( $msg ); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | return $returnService; |
| 104 | } |
| 105 | |
| 106 | private static function getServicesList() { |
| 107 | global $egMultiMaps_MapServices; |
| 108 | |
| 109 | if ( !self::$servicesCache ) { |
| 110 | if ( !is_array( $egMultiMaps_MapServices ) || count( $egMultiMaps_MapServices ) == 0 ) { |
| 111 | return wfMessage( 'multimaps-mapservices-must-not-empty-array', '$egMultiMaps_MapServices' )->escaped(); |
| 112 | } |
| 113 | |
| 114 | $lang = MediaWikiServices::getInstance()->getContentLanguage(); |
| 115 | foreach ( $egMultiMaps_MapServices as $key => $value ) { |
| 116 | if ( is_int( $key ) ) { |
| 117 | self::$servicesCache[$lang->lc( $value )] = $value; |
| 118 | } elseif ( is_array( $value ) ) { |
| 119 | self::$servicesCache[$lang->lc( $key )] = $value + [ 'originName' => $key ]; |
| 120 | } |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | return self::$servicesCache; |
| 125 | } |
| 126 | |
| 127 | private static function getDefaultService( $services ) { |
| 128 | return array_shift( $services ); |
| 129 | } |
| 130 | |
| 131 | } |