wikimedia/mediawiki-extensions-Wikibase

<?php

declare( strict_types = 1 );

namespace Wikibase\DataModel\Serializers;

use Serializers\Exceptions\UnsupportedObjectException;
use Serializers\Serializer;
use Wikibase\DataModel\Term\AliasGroup;
use Wikibase\DataModel\Term\AliasGroupFallback;

/**
 * Package private
 *
 * @license GPL-2.0-or-later
 * @author Bene* < benestar.wikimedia@gmail.com >
 */
class AliasGroupSerializer implements Serializer {

    /**
     * @param AliasGroup $object
     *
     * @return array[]
     */
    public function serialize( $object ) {
        $this->assertIsSerializerFor( $object );
        return $this->getSerialized( $object );
    }

    private function assertIsSerializerFor( $object ) {
        if ( !( $object instanceof AliasGroup ) ) {
            throw new UnsupportedObjectException(
                $object,
                'AliasGroupSerializer can only serialize AliasGroup objects'
            );
        }
    }

    /**
     * @return array[]
     */
    private function getSerialized( AliasGroup $aliasGroup ): array {
        $serialization = [];
        $language = $aliasGroup->getLanguageCode();

        foreach ( $aliasGroup->getAliases() as $value ) {
            $result = [
                'language' => $language,
                'value' => $value,
            ];

            if ( $aliasGroup instanceof AliasGroupFallback ) {
                $result['language'] = $aliasGroup->getActualLanguageCode();
                $result['source'] = $aliasGroup->getSourceLanguageCode();
            }

            $serialization[] = $result;
        }

        return $serialization;
    }

}