wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\UseCases\GetSitelinks;

use Wikibase\Repo\RestApi\Application\UseCases\GetLatestItemRevisionMetadata;
use Wikibase\Repo\RestApi\Application\UseCases\ItemRedirect;
use Wikibase\Repo\RestApi\Application\UseCases\UseCaseError;
use Wikibase\Repo\RestApi\Domain\Services\SitelinksRetriever;

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

    private GetSitelinksValidator $validator;
    private GetLatestItemRevisionMetadata $getLatestRevisionMetadata;
    private SitelinksRetriever $sitelinksRetriever;

    public function __construct(
        GetSitelinksValidator $validator,
        GetLatestItemRevisionMetadata $getLatestRevisionMetadata,
        SitelinksRetriever $sitelinksRetriever
    ) {
        $this->validator = $validator;
        $this->getLatestRevisionMetadata = $getLatestRevisionMetadata;
        $this->sitelinksRetriever = $sitelinksRetriever;
    }

    /**
     * @throws UseCaseError
     * @throws ItemRedirect
     */
    public function execute( GetSitelinksRequest $request ): GetSitelinksResponse {
        $itemId = $this->validator->validateAndDeserialize( $request )->getItemId();

        [ $revisionId, $lastModified ] = $this->getLatestRevisionMetadata->execute( $itemId );

        return new GetSitelinksResponse(
            $this->sitelinksRetriever->getSitelinks( $itemId ),
            $lastModified,
            $revisionId
        );
    }

}