wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\UseCaseRequestValidation;

use LogicException;
use Wikibase\DataModel\Statement\Statement;
use Wikibase\Repo\RestApi\Application\UseCases\UseCaseError;
use Wikibase\Repo\RestApi\Application\Validation\StatementValidator;

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

    private StatementValidator $validator;

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

    /**
     * @throws UseCaseError
     */
    public function validateAndDeserialize( StatementSerializationRequest $request ): Statement {
        $validationError = $this->validator->validate( $request->getStatement(), '/statement' );
        if ( $validationError ) {
            $context = $validationError->getContext();
            switch ( $validationError->getCode() ) {
                case StatementValidator::CODE_PROPERTY_NOT_FOUND:
                    throw UseCaseError::newReferencedResourceNotFound( $context[StatementValidator::CONTEXT_PATH] );
                case StatementValidator::CODE_INVALID_FIELD:
                    throw UseCaseError::newInvalidValue( $context[StatementValidator::CONTEXT_PATH] );
                case StatementValidator::CODE_MISSING_FIELD:
                    throw UseCaseError::newMissingField(
                        $context[StatementValidator::CONTEXT_PATH],
                        $context[StatementValidator::CONTEXT_FIELD]
                    );
                case StatementValidator::CODE_INVALID_FIELD_TYPE:
                    throw UseCaseError::newInvalidValue( $context[StatementValidator::CONTEXT_PATH] );
                default:
                    throw new LogicException( "Unknown validation error code: {$validationError->getCode()}" );
            }
        }

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

}