<?php
namespace Espo\Custom\Hooks\CDokumente;

use Espo\ORM\Entity;
use Espo\ORM\Repository\Option\SaveOptions;
use Espo\Core\Hook\Hook\AfterSave;

/**
 * Hook: Bei Änderung eines Dokuments syncStatus und aiSyncStatus auf "unclean" setzen
 * und die verknüpfte CAkten-Entity aktualisieren.
 */
class UpdateJunctionSyncStatus implements AfterSave
{
    public function __construct(
        private \Espo\ORM\EntityManager $entityManager
    ) {}

    public function afterSave(Entity $entity, SaveOptions $options): void
    {
        if ($entity->isNew()) {
            return;
        }

        if (!$this->hasRelevantChanges($entity)) {
            return;
        }

        if (!$entity->get('cAktenId')) {
            return;
        }

        try {
            $entity->set('syncStatus', 'unclean');
            $entity->set('aiSyncStatus', 'unclean');
            $this->entityManager->saveEntity($entity, ['silent' => true, 'skipHooks' => true]);

            // Akte triggern → BeforeSave-Hook UpdateLastSyncFromDocuments aggregiert Status
            $akte = $this->entityManager->getEntityById('CAkten', $entity->get('cAktenId'));
            if ($akte) {
                $this->entityManager->saveEntity($akte, ['silent' => true]);
            }
        } catch (\Exception $e) {
            $GLOBALS['log']->error('CDokumente UpdateJunctionSyncStatus Hook Error: ' . $e->getMessage());
        }
    }

    private function hasRelevantChanges(Entity $entity): bool
    {
        $relevantFields = [
            'name',
            'description',
            'dokument',
            'dokumentId',
            'preview',
            'previewId',
            'fileStatus',
        ];

        foreach ($relevantFields as $field) {
            if ($entity->isAttributeChanged($field)) {
                return true;
            }
        }

        return false;
    }
}