wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\UseCaseRequestValidation;

use LogicException;
use Wikibase\DataModel\Term\AliasGroup;
use Wikibase\Repo\RestApi\Application\Serialization\AliasesInLanguageDeserializer;
use Wikibase\Repo\RestApi\Application\Serialization\Exceptions\InvalidFieldException;
use Wikibase\Repo\RestApi\Application\UseCases\UseCaseError;
use Wikibase\Repo\RestApi\Application\Validation\AliasesInLanguageValidator;

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

    private AliasesInLanguageDeserializer $deserializer;
    private AliasesInLanguageValidator $validator;

    public function __construct( AliasesInLanguageDeserializer $deserializer, AliasesInLanguageValidator $validator ) {
        $this->deserializer = $deserializer;
        $this->validator = $validator;
    }

    /**
     * @throws UseCaseError
     */
    public function validateAndDeserialize( ItemAliasesInLanguageEditRequest $request ): array {
        $aliases = $request->getAliasesInLanguage();
        if ( !$aliases ) {
            throw UseCaseError::newInvalidValue( '/aliases' );
        }

        $aliasesInLanguage = new AliasGroup( $request->getLanguageCode(), $this->deserialize( $aliases ) );
        $this->validate( $aliasesInLanguage );

        return $aliasesInLanguage->getAliases();
    }

    private function deserialize( array $requestAliases ): array {
        try {
            return $this->deserializer->deserialize( $requestAliases, '/aliases' );
        } catch ( InvalidFieldException $e ) {
            throw UseCaseError::newInvalidValue( $e->getPath() );
        }
    }

    private function validate( AliasGroup $aliasesInLanguage ): void {
        $validationError = $this->validator->validate( $aliasesInLanguage, '/aliases' );
        if ( $validationError ) {
            $errorCode = $validationError->getCode();
            $context = $validationError->getContext();
            switch ( $errorCode ) {
                case AliasesInLanguageValidator::CODE_INVALID:
                    throw UseCaseError::newInvalidValue( $context[AliasesInLanguageValidator::CONTEXT_PATH] );
                case AliasesInLanguageValidator::CODE_TOO_LONG:
                    throw UseCaseError::newValueTooLong(
                        $context[AliasesInLanguageValidator::CONTEXT_PATH],
                        $context[AliasesInLanguageValidator::CONTEXT_LIMIT]
                    );
                default:
                    throw new LogicException( "Unexpected validation error code: $errorCode" );
            }
        }
    }

}