wikimedia/mediawiki-extensions-Translate

<?php
declare( strict_types = 1 );

namespace MediaWiki\Extension\Translate\TranslatorInterface\Aid;

use FileBasedMessageGroup;
use MediaWiki\Extension\Translate\FileFormatSupport\GettextFormat;
use MediaWiki\Extension\Translate\TranslatorInterface\TranslationHelperException;
use MediaWiki\MediaWikiServices;

/**
 * Translation aid that provides Gettext documentation.
 * @ingroup TranslationAids
 * @author Niklas Laxström
 * @license GPL-2.0-or-later
 * @since 2013-01-01
 */
class GettextDocumentationAid extends TranslationAid {
    public function getData(): array {
        // We need to get the primary group to get the correct file
        // So $group can be different from $this->group
        $group = $this->handle->getGroup();
        if ( !$group instanceof FileBasedMessageGroup ) {
            throw new TranslationHelperException( 'Not a FileBasedMessageGroup group' );
        }

        $fileFormat = $group->getFFS();
        if ( !$fileFormat instanceof GettextFormat ) {
            throw new TranslationHelperException( 'Group is not using GettextFormat' );
        }

        $cache = $group->getMessageGroupCache( $group->getSourceLanguage() );
        if ( !$cache->exists() ) {
            throw new TranslationHelperException( 'Definitions are not cached' );
        }

        $extra = $cache->getExtra();
        $contLang = MediaWikiServices::getInstance()->getContentLanguage();
        $messageKey = $contLang->lcfirst( $this->handle->getKey() );
        $messageKey = str_replace( ' ', '_', $messageKey );

        $help = $extra['TEMPLATE'][$messageKey]['comments'] ?? null;
        if ( !$help ) {
            throw new TranslationHelperException( "No comments found for key '$messageKey'" );
        }

        $conf = $group->getConfiguration();
        if ( isset( $conf['BASIC']['codeBrowser'] ) ) {
            $pattern = $conf['BASIC']['codeBrowser'];
            $pattern = str_replace( '%FILE%', '\1', $pattern );
            $pattern = str_replace( '%LINE%', '\2', $pattern );
            $pattern = "[$pattern \\1:\\2]";
        } else {
            $pattern = "\\1:\\2";
        }

        $out = '';
        foreach ( $help as $type => $lines ) {
            if ( $type === ':' ) {
                $files = '';
                foreach ( $lines as $line ) {
                    $files .= ' ' . preg_replace( '/([^ :]+):(\d+)/', $pattern, $line );
                }
                $out .= "<nowiki>#:</nowiki> $files<br />";
            } else {
                foreach ( $lines as $line ) {
                    $out .= "<nowiki>#$type</nowiki> $line<br />";
                }
            }
        }

        $html = $this->context->getOutput()->parseAsContent( $out );

        return [
            'language' => $contLang->getCode(),
            // @todo Provide raw data when possible
            // 'value' => $help,
            'html' => $html,
        ];
    }
}