<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\MainBundle\Workflow\EventSubscriber;

use Chill\DocStoreBundle\Service\StoredObjectRestoreInterface;
use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
use Chill\MainBundle\Workflow\EntityWorkflowManager;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Workflow\Event\TransitionEvent;
use Symfony\Component\Workflow\Registry;

final readonly class OnCancelRestoreDocumentToEditableEventSubscriber implements EventSubscriberInterface
{
    public function __construct(
        private Registry $registry,
        private EntityWorkflowManager $manager,
        private StoredObjectRestoreInterface $storedObjectRestore,
    ) {}

    public static function getSubscribedEvents(): array
    {
        return ['workflow.transition' => ['onCancelRestoreDocumentToEditable', 0]];
    }

    public function onCancelRestoreDocumentToEditable(TransitionEvent $event): void
    {
        $entityWorkflow = $event->getSubject();

        if (!$entityWorkflow instanceof EntityWorkflow) {
            return;
        }

        $workflow = $this->registry->get($entityWorkflow, $entityWorkflow->getWorkflowName());

        foreach ($event->getTransition()->getTos() as $place) {
            $metadata = $workflow->getMetadataStore()->getPlaceMetadata($place);

            if (($metadata['isFinal'] ?? false) && !($metadata['isFinalPositive'] ?? true)) {
                $this->restoreDocument($entityWorkflow);

                return;
            }
        }
    }

    private function restoreDocument(EntityWorkflow $entityWorkflow): void
    {
        $storedObject = $this->manager->getAssociatedStoredObject($entityWorkflow);

        if (null === $storedObject) {
            return;
        }

        $version = $storedObject->getLastKeptBeforeConversionVersion();

        if (null === $version) {
            return;
        }

        $this->storedObjectRestore->restore($storedObject->getLastKeptBeforeConversionVersion());
    }
}