wikimedia/mediawiki-extensions-CirrusSearch

<?php

namespace CirrusSearch;

/**
 * InterwikiResolver suited for custom cirrus config:
 * - wgCirrusSearchLanguageToWikiMap: a map of language code to wiki db prefixes
 * - wgCirrusSearchInterwikiSources: a map of cross project interwiki prefixes to wikiId
 * - wgCirrusSearchWikiToNameMap: a map of language interwiki prefixes to wikiId
 */

class CirrusConfigInterwikiResolver extends BaseInterwikiResolver {
    /**
     * @param SearchConfig $config
     * @return bool true if this resolver can run with the specified config
     */
    public static function accepts( SearchConfig $config ) {
        if ( $config->get( 'CirrusSearchInterwikiSources' ) ) {
            return true;
        }
        if ( $config->get( 'CirrusSearchWikiToNameMap' ) ) {
            return true;
        }
        return false;
    }

    protected function loadMatrix() {
        $sisterProjects = $this->config->get( 'CirrusSearchInterwikiSources' ) ?? [];
        $languageMap = $this->config->get( 'CirrusSearchLanguageToWikiMap' ) ?? [];
        $crossLanguage = $this->config->get( 'CirrusSearchWikiToNameMap' ) ?? [];
        $crossLanguage = array_filter( $crossLanguage, function ( $entry ) {
            return $entry !== $this->config->getWikiId();
        } );
        $prefixesByWiki = array_flip( $sisterProjects ) + array_flip( $crossLanguage );
        return [
            'sister_projects' => $sisterProjects,
            'language_map' => $languageMap,
            'cross_language' => $crossLanguage,
            'prefixes_by_wiki' => $prefixesByWiki,
        ];
    }
}