<?php

namespace App\Controller\Administrative\System\Document;

use App\Entity\Upload;
use App\Entity\User;
use App\Htmx\HxRedirectResponse;
use App\Service\Upload\UploadHandler;
use Doctrine\ORM\EntityManagerInterface;
use Psr\Log\LoggerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\Security\Http\Attribute\IsGranted;

class UploadController extends AbstractController
{
    public function __construct(
        private readonly UploadHandler $uploadHandler,
        private readonly EntityManagerInterface $entityManager,
        private readonly LoggerInterface $logger,
    ) {
    }

    #[Route('/administrative/system/document/upload', name: 'app_administrative_system_document_upload')]
    #[IsGranted('ROLE_ADMINISTRATIVE')]
    public function index(Request $request): Response
    {
        $form = $this
            ->createFormBuilder()
            ->getForm()
        ;
        $form->handleRequest($request);

        // Handle upload independently from form submission to avoid issues with failing validation
        $uploadSession = $this->uploadHandler->getUploadSession();
        $uploadedDocuments = [];
        if (true === $request->isMethod('POST') && 0 < $uploadSession->getCount()) {
            /** @var User $user */
            $user = $this->getUser();
            foreach ($uploadSession->getUploadsByType(Upload::TYPE_DOCUMENT) as $upload) {
                $document = Upload::fromUploadDto($upload, $user, Upload::TYPE_DOCUMENT);
                $uploadedDocuments[] = $document;
                $this->entityManager->persist($document);
            }
            $this->entityManager->flush();
            $this->uploadHandler->moveUploadSessionFilesFromOrphanage(Upload::TYPE_DOCUMENT, $uploadSession);
            $this->uploadHandler->removeUploadSessionUploadsByType(Upload::TYPE_DOCUMENT);
        }

        if ($form->isSubmitted() && $form->isValid()) {
            $count = count($uploadedDocuments);
            $this->addFlash('success', 1 === $count ? 'Das Dokument wurde hochgeladen' : 'Die Dokumente wurden hochgeladen');
            $loggerContext = [];
            foreach ($uploadedDocuments as $document) {
                $loggerContext[] = [
                    'document_id' => $document->getId(),
                    'document_filename' => $document->getOriginalFilename(),
                ];
            }
            $this->logger->info('Upload document(s)', $loggerContext);

            return new HxRedirectResponse($this->generateUrl('app_administrative_system_document_index'));
        }

        return $this->render('administrative/system/document/modal_upload.html.twig', [
            'form' => $form->createView(),
        ]);
    }
}