wikimedia/mediawiki-extensions-Translate

<?php
declare( strict_types = 1 );

namespace MediaWiki\Extension\Translate\TranslatorInterface\Aid;

use MediaWiki\MediaWikiServices;

/**
 * Translation aid that provides the "in other languages" suggestions.
 * @author Niklas Laxström
 * @license GPL-2.0-or-later
 * @since 2013-01-01
 * @ingroup TranslationAids
 */
class InOtherLanguagesAid extends TranslationAid {
    public function getData(): array {
        $suggestions = [
            '**' => 'suggestion',
        ];

        // Fuzzy translations are not included in these
        $translations = $this->dataProvider->getGoodTranslations();
        $code = $this->handle->getCode();

        $sourceLanguage = $this->handle->getGroup()->getSourceLanguage();

        foreach ( $this->getFallbacks( $code ) as $fallbackCode ) {
            if ( !isset( $translations[$fallbackCode] ) || $fallbackCode === $sourceLanguage ) {
                continue;
            }

            $suggestions[] = [
                'language' => $fallbackCode,
                'value' => $translations[$fallbackCode],
            ];
        }

        return $suggestions;
    }

    /**
     * Get the languages for "in other languages". That would be translation
     * assistant languages with defined language fallbacks additionally.
     * @param string $code
     * @return string[] List of language codes
     */
    protected function getFallbacks( string $code ): array {
        global $wgTranslateLanguageFallbacks;
        $mwServices = MediaWikiServices::getInstance();

        // User preference has the final say
        $userOptionLookup = $mwServices->getUserOptionsLookup();
        $preference = $userOptionLookup->getOption( $this->context->getUser(), 'translate-editlangs' );
        if ( $preference !== 'default' ) {
            $fallbacks = array_map( 'trim', explode( ',', $preference ) );
            foreach ( $fallbacks as $k => $v ) {
                if ( $v === $code ) {
                    unset( $fallbacks[$k] );
                }
            }

            return $fallbacks;
        }

        // Global configuration settings
        $fallbacks = [];
        if ( isset( $wgTranslateLanguageFallbacks[$code] ) ) {
            $fallbacks = (array)$wgTranslateLanguageFallbacks[$code];
        }

        $list = $mwServices->getLanguageFallback()->getAll( $code );
        $fallbacks = array_merge( $list, $fallbacks );

        return array_unique( $fallbacks );
    }
}