<?php

namespace Chill\MainBundle\Service\Workflow;

use Chill\MainBundle\Repository\Workflow\EntityWorkflowRepository;
use Doctrine\ORM\EntityManagerInterface;
use Psr\Log\LoggerInterface;
use Symfony\Component\Messenger\Attribute\AsMessageHandler;
use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException;
use Symfony\Component\Workflow\Registry;

#[AsMessageHandler]
class CancelStaleWorkflowHandler
{
    public function __construct(private readonly EntityWorkflowRepository $workflowRepository, private readonly Registry $registry, private EntityManagerInterface $em, private LoggerInterface $logger)
    {
    }

    public function __invoke(CancelStaleWorkflow $message): void
    {
        $workflowId = $message->getWorkflowId();

        $workflow = $this->workflowRepository->find($workflowId);
        $workflowComponent = $this->registry->get($workflow, $workflow->getWorkflowName());
        $metadataStore = $workflowComponent->getMetadataStore();
        $transitions = $workflowComponent->getEnabledTransitions($workflow);
        $steps = $workflow->getSteps();

        $transitionApplied = false;

        if (count($steps) === 1) {
            $this->em->remove($workflow->getCurrentStep());
            $this->em->remove($workflow);
        } else {
            foreach ($transitions as $transition) {
                $isFinal = $metadataStore->getMetadata('isFinal', $transition);
                $isFinalPositive = $metadataStore->getMetadata('isFinalPositive', $transition);

                if ($isFinal && !$isFinalPositive) {
                    $workflowComponent->apply($workflow, 'annule');
                    $this->logger->info(sprintf('EntityWorkflow %d has been transitioned.', $workflowId));
                    $transitionApplied = true;
                    break;
                }
            }

            if (!$transitionApplied) {
                $this->logger->error(sprintf('No valid transition found for EntityWorkflow %d.', $workflowId));
                throw new UnrecoverableMessageHandlingException(
                    sprintf('No valid transition found for EntityWorkflow %d.', $workflowId)
                );
            }
        }

    }

}