LanguageConverterFactory.php

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<?php
namespace MediaWiki\Languages;
 
use CrhConverter;
use EnConverter;
use GanConverter;
use ILanguageConverter;
use IuConverter;
use KkConverter;
use KuConverter;
use Language;
use ShiConverter;
use SrConverter;
use TgConverter;
use TrivialLanguageConverter;
use UzConverter;
use ZhConverter;
 
class LanguageConverterFactory {
 
    private $cache = [];
    private $converterClasses = [
        'crh' => CrhConverter::class,
        'gan' => GanConverter::class,
        'iu' => IuConverter::class,
        'kk' => KkConverter::class,
        'ku' => KuConverter::class,
        'shi' => ShiConverter::class,
        'sr' => SrConverter::class,
        'tg' => TgConverter::class,
        'uz' => UzConverter::class,
        'zh' => ZhConverter::class,
    ];
 
    private $defaultConverterClass = TrivialLanguageConverter::class;
 
    private $defaultLanguage;
 
    public function __construct( $usePigLatinVariant, callable $defaultLanguage ) {
        if ( $usePigLatinVariant ) {
            $this->converterClasses['en'] = EnConverter::class;
        }
        $this->defaultLanguage = $defaultLanguage;
    }
 
    private function classFromCode( string $code ) : string {
        $code = mb_strtolower( $code );
        return $this->converterClasses[$code] ?? $this->defaultConverterClass;
    }
 
    public function getLanguageConverter( $language = null ) : ILanguageConverter {
        $lang = $language ?? ( $this->defaultLanguage )();
        if ( isset( $this->cache[$lang->getCode()] ) ) {
            return $this->cache[$lang->getCode()];
        }
        $class = $this->classFromCode( $lang->getCode() );
 
        $converter = new $class( $lang );
        $this->cache[$lang->getCode()] = $converter;
        return $converter;
    }
}