wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\UseCaseRequestValidation;

use LogicException;
use Wikibase\DataModel\SiteLink;
use Wikibase\Repo\RestApi\Application\UseCases\UseCaseError;
use Wikibase\Repo\RestApi\Application\Validation\SitelinkValidator;

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

    private SitelinkValidator $validator;

    public function __construct( SitelinkValidator $validator ) {
        $this->validator = $validator;
    }

    /**
     * @throws UseCaseError
     */
    public function validateAndDeserialize( SitelinkEditRequest $request ): SiteLink {
        $validationError = $this->validator->validate( $request->getItemId(), $request->getSiteId(), $request->getSitelink(), '/sitelink' );

        if ( $validationError ) {
            $context = $validationError->getContext();
            switch ( $validationError->getCode() ) {
                case SitelinkValidator::CODE_TITLE_MISSING:
                    throw UseCaseError::newMissingField( $context[SitelinkValidator::CONTEXT_PATH], 'title' );
                case SitelinkValidator::CODE_EMPTY_TITLE:
                case SitelinkValidator::CODE_INVALID_TITLE:
                case SitelinkValidator::CODE_INVALID_FIELD_TYPE:
                    throw UseCaseError::newInvalidValue( $context[SitelinkValidator::CONTEXT_PATH] );
                case SitelinkValidator::CODE_INVALID_BADGE:
                case SitelinkValidator::CODE_BADGE_NOT_ALLOWED:
                    $badge = $context[SitelinkValidator::CONTEXT_VALUE];
                    $badgeIndex = Utils::getIndexOfValueInSerialization( $badge, $request->getSitelink()[ 'badges' ] );
                    throw UseCaseError::newInvalidValue( "/sitelink/badges/$badgeIndex" );
                case SitelinkValidator::CODE_TITLE_NOT_FOUND:
                    throw UseCaseError::newReferencedResourceNotFound( '/sitelink/title' );
                case SitelinkValidator::CODE_SITELINK_CONFLICT:
                    $conflictingItemId = (string)$validationError->getContext()[ SitelinkValidator::CONTEXT_CONFLICTING_ITEM_ID ];
                    throw UseCaseError::newDataPolicyViolation(
                        UseCaseError::POLICY_VIOLATION_SITELINK_CONFLICT,
                        [ UseCaseError::CONTEXT_CONFLICTING_ITEM_ID => $conflictingItemId ]
                    );
                default:
                    throw new LogicException( "Unknown validation error code: {$validationError->getCode()}" );
            }
        }

        return $this->validator->getValidatedSitelink();
    }

}