wikimedia/mediawiki-extensions-Wikibase

<?php

namespace Wikibase\Repo\ChangeOp\Deserialization;

use Wikibase\Repo\ChangeOp\ChangeOpDeserializer;
use Wikibase\Repo\ChangeOp\ChangeOps;
use Wikibase\Repo\ChangeOp\FingerprintChangeOpFactory;
use Wikibase\Repo\ChangeOp\NullChangeOp;

/**
 * Constructs ChangeOps for fingerprint (terms) change requests
 *
 * @license GPL-2.0-or-later
 */
class FingerprintChangeOpDeserializer implements ChangeOpDeserializer {

    /**
     * @var FingerprintChangeOpFactory
     */
    private $fingerprintChangeOpFactory;

    /** @var LabelsChangeOpDeserializer */
    private $labelsChangeOpDeserializer;

    /** @var DescriptionsChangeOpDeserializer */
    private $descriptionsChangeOpDeserializer;

    /** @var AliasesChangeOpDeserializer */
    private $aliasesChangeOpDeserializer;

    public function __construct(
      LabelsChangeOpDeserializer $labelsChangeOpDeserializer,
      DescriptionsChangeOpDeserializer $descriptionsChangeOpDeserializer,
      AliasesChangeOpDeserializer $aliasesChangeOpDeserializer,
        FingerprintChangeOpFactory $fingerprintChangeOpFactory
    ) {
        $this->labelsChangeOpDeserializer = $labelsChangeOpDeserializer;
        $this->descriptionsChangeOpDeserializer = $descriptionsChangeOpDeserializer;
        $this->aliasesChangeOpDeserializer = $aliasesChangeOpDeserializer;
        $this->fingerprintChangeOpFactory = $fingerprintChangeOpFactory;
    }

    public function createEntityChangeOp( array $changeRequest ) {
        $changeOps = [];

        if ( array_key_exists( 'labels', $changeRequest ) ) {
            $changeOps[] = $this->labelsChangeOpDeserializer->createEntityChangeOp( $changeRequest );
        }

        if ( array_key_exists( 'descriptions', $changeRequest ) ) {
            $changeOps[] = $this->descriptionsChangeOpDeserializer->createEntityChangeOp( $changeRequest );
        }

        if ( array_key_exists( 'aliases', $changeRequest ) ) {
            $changeOps[] = $this->aliasesChangeOpDeserializer->createEntityChangeOp( $changeRequest );
        }

        if ( count( $changeOps ) > 0 ) {
            return $this->fingerprintChangeOpFactory->newFingerprintChangeOp( new ChangeOps( $changeOps ) );
        }

        return new NullChangeOp();
    }
}