gistfile1.txt

<?php

use MediaWiki\HookContainer\HookRunner;
use MediaWiki\MediaWikiServices;
use MediaWiki\Rest\LocalizedHttpException;
use Wikimedia\Message\MessageValue;

$services = MediaWikiServices::getInstance();
$searchEngineFactory = $services->getSearchEngineFactory();
$searchEngineConfig = $services->getSearchEngineConfig();
$searchEngine = $searchEngineFactory->create();
$searchEngine->setNamespaces( $searchEngineConfig->defaultNamespaces() );

$hookRunner = new HookRunner( $services->getHookContainer() );

$query = 'File:Russian balls 12-13.jpg';

function bdpGetSearchResultsOrThrow( $results ) {
	if ( $results ) {
		if ( $results instanceof Status ) {
			$status = $results;
			if ( !$status->isOK() ) {
				list( $error ) = $status->splitByErrorType();
				if ( $error->getErrors() ) { // Only throw for errors, suppress warnings (for now)
					$errorMessages = $error->getMessage();
					throw new LocalizedHttpException(
						new MessageValue( "rest-search-error", [ $errorMessages->getKey() ] )
					);
				}
			}
			$statusValue = $status->getValue();
			if ( $statusValue instanceof ISearchResultSet ) {
				return $statusValue->extractResults();
			}
		} else {
			return $results->extractResults();
		}
	}
	return [];
}

$titleSearch = $searchEngine->searchTitle( $query );
$textSearch = $searchEngine->searchText( $query );
$titleSearchResults = bdpGetSearchResultsOrThrow( $titleSearch );
$textSearchResults = bdpGetSearchResultsOrThrow( $textSearch );
$mergedResults = array_merge( $titleSearchResults, $textSearchResults );

$pageInfos = [];
foreach ( $mergedResults as $result ) {
	if ( !$result->isBrokenTitle() && !$result->isMissingRevision() ) {
		$title = $result->getTitle();
		$pageID = $title->getArticleID();
		if ( !isset( $pageInfos[$pageID] ) ) {
			$pageInfos[$pageID] = [ $title, null, $result ];
		}
	}
}

$pageIdentities = array_map( static function ( $pageInfo ) {
	/** @var Title $title */
	list( $title ) = $pageInfo;
	return $title->exists() ? $title->toPageIdentity() : null;
}, $pageInfos );

$pageIdentities = array_filter( $pageIdentities );

$r = array_map( static function ( $pageInfo ) {
	list( $title, $sugg, $result ) = $pageInfo;
	return [
		'id' => $title->getArticleID(),
		'key' => $title->getPrefixedDBkey(),
		'title' => $title->getPrefixedText(),
		'excerpt' => ($sugg ? $sugg->getText() : $result->getTextSnippet()) ?: null,
	];
},
	$pageInfos );

$descriptions = array_fill_keys( array_keys( $pageIdentities ), null );
$hookRunner->onSearchResultProvideDescription( $pageIdentities, $descriptions );
$d = array_map( static function ( $description ) {
	return [ 'description' => $description ];
}, $descriptions );

$thumbnails = array_fill_keys( array_keys( $pageIdentities ), null );
$hookRunner->onSearchResultProvideThumbnail( $pageIdentities, $thumbnails );
$t = array_map( function ( $thumbnail ) {
	return [ 'thumbnail' => $this->serializeThumbnail( $thumbnail ) ];
}, $thumbnails );

$result = array_map( "array_merge",
	$r,
	$d,
	$t
);

print_r( $r );
print_r( $d );
print_r( $t );