wikimedia/mediawiki-extensions-Wikibase

<?php

declare( strict_types = 1 );

namespace Wikibase\View;

use MediaWiki\MediaWikiServices;
use Wikibase\Repo\WikibaseRepo;

/**
 * @license GPL-2.0-or-later
 */
class FallbackChainModuleMethods {

    public static function buildFallbackChains(): array {
        $services = MediaWikiServices::getInstance();
        if ( !WikibaseRepo::getSettings( $services )->getSetting( 'tmpEnableMulLanguageCode' ) ) {
            return [];
        }
        $localCache = $services->getLocalServerObjectCache();
        return $localCache->getWithSetCallback(
            $localCache->makeKey( 'wikibase-fallback-chains' ),
            $localCache::TTL_WEEK,
            function () use ( $services ) {
                $startTime = microtime( true );

                $fallbackChainFactory = WikibaseRepo::getLanguageFallbackChainFactory( $services );
                $languages = WikibaseRepo::getTermsLanguages( $services )->getLanguages();

                $chains = [];
                foreach ( $languages as $language ) {
                    $chains[$language] = $fallbackChainFactory->newFromLanguageCode( $language )->getFetchLanguageCodes();
                }

                $endTime = microtime( true );
                $statsdFactory = $services->getStatsdDataFactory();
                $statsdFactory->timing( 'wikibase.view.fallbackchains.timing', ( $endTime - $startTime ) * 1000 );
                return $chains;
            }
        );
    }
}