wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\UseCases\AddItemStatement;

use Wikibase\DataModel\Services\Statement\GuidGenerator;
use Wikibase\Repo\RestApi\Application\UseCases\AssertItemExists;
use Wikibase\Repo\RestApi\Application\UseCases\AssertUserIsAuthorized;
use Wikibase\Repo\RestApi\Application\UseCases\UpdateExceptionHandler;
use Wikibase\Repo\RestApi\Application\UseCases\UseCaseError;
use Wikibase\Repo\RestApi\Domain\Model\EditMetadata;
use Wikibase\Repo\RestApi\Domain\Model\StatementEditSummary;
use Wikibase\Repo\RestApi\Domain\Services\ItemUpdater;
use Wikibase\Repo\RestApi\Domain\Services\ItemWriteModelRetriever;

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

    use UpdateExceptionHandler;

    private AddItemStatementValidator $validator;
    private AssertItemExists $assertItemExists;
    private ItemWriteModelRetriever $itemRetriever;
    private ItemUpdater $itemUpdater;
    private GuidGenerator $guidGenerator;
    private AssertUserIsAuthorized $assertUserIsAuthorized;

    public function __construct(
        AddItemStatementValidator $validator,
        AssertItemExists $assertItemExists,
        ItemWriteModelRetriever $itemRetriever,
        ItemUpdater $itemUpdater,
        GuidGenerator $guidGenerator,
        AssertUserIsAuthorized $assertUserIsAuthorized
    ) {
        $this->validator = $validator;
        $this->assertItemExists = $assertItemExists;
        $this->itemRetriever = $itemRetriever;
        $this->itemUpdater = $itemUpdater;
        $this->guidGenerator = $guidGenerator;
        $this->assertUserIsAuthorized = $assertUserIsAuthorized;
    }

    /**
     * @throws UseCaseError
     */
    public function execute( AddItemStatementRequest $request ): AddItemStatementResponse {
        $deserializedRequest = $this->validator->validateAndDeserialize( $request );
        $itemId = $deserializedRequest->getItemId();
        $statement = $deserializedRequest->getStatement();

        $this->assertItemExists->execute( $itemId );

        $editMetadata = $deserializedRequest->getEditMetadata();
        $this->assertUserIsAuthorized->checkEditPermissions( $itemId, $editMetadata->getUser() );

        $newStatementGuid = $this->guidGenerator->newStatementId( $itemId );
        $statement->setGuid( (string)$newStatementGuid );
        $item = $this->itemRetriever->getItemWriteModel( $itemId );
        $item->getStatements()->addStatement( $statement );

        $newRevision = $this->executeWithExceptionHandling( fn() => $this->itemUpdater->update(
            $item, // @phan-suppress-current-line PhanTypeMismatchArgumentNullable Item validated and exists
            new EditMetadata(
                $editMetadata->getTags(),
                $editMetadata->isBot(),
                StatementEditSummary::newAddSummary( $editMetadata->getComment(), $statement )
            )
        ) );

        return new AddItemStatementResponse(
            $newRevision->getItem()->getStatements()->getStatementById( $newStatementGuid ),
            $newRevision->getLastModified(),
            $newRevision->getRevisionId()
        );
    }

}