<?php

declare(strict_types=1);

namespace MummertMedia\EventManagerBundle\Controller\Frontend;

use Contao\CoreBundle\Controller\FrontendModule\AbstractFrontendModuleController;
use Contao\CoreBundle\DependencyInjection\Attribute\AsFrontendModule;
use Contao\CoreBundle\Twig\FragmentTemplate;
use Contao\Dbafs;
use Contao\FilesModel;
use Contao\FrontendUser;
use Contao\ModuleModel;
use Contao\PageModel;
use Contao\StringUtil;
use MummertMedia\EventManagerBundle\Form\OrganizationType;
use MummertMedia\EventManagerBundle\Service\OrganizationRepository;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

#[AsFrontendModule(type: 'organization_edit', category: 'eventmanager', template: 'frontend/organization_edit')]
class OrganizationEditController extends AbstractFrontendModuleController
{
    public function __construct(
        private readonly OrganizationRepository $organizationRepository,
    ) {
    }

    protected function getResponse(FragmentTemplate $template, ModuleModel $model, Request $request): Response
    {
        $user = $this->getUser();
        $backUrl = $this->resolveBackUrl($request, $model);
        $organizationParam = $request->query->get('organization');

        if (null === $organizationParam) {
            $template->set('error', 'Ungültiger Aufruf: Parameter "organization" fehlt.');
            $template->set('backUrl', $backUrl);

            return $template->getResponse();
        }

        if (!$user instanceof FrontendUser) {
            $template->set('error', 'Bitte zuerst als Mitglied einloggen.');
            $template->set('backUrl', $backUrl);

            return $template->getResponse();
        }

        $organizationId = (int) $organizationParam;

        if ($organizationId <= 0 || !$this->organizationRepository->memberHasOrganization((int) $user->id, $organizationId)) {
            $template->set('error', 'Keine Berechtigung für diese Organisation oder ungültige ID.');
            $template->set('backUrl', $backUrl);

            return $template->getResponse();
        }

        $organization = $this->organizationRepository->findById($organizationId);
        $allowedOrganizationTagIds = array_values(array_unique(array_map('intval', StringUtil::deserialize($model->organizationTypeTags ?? null, true))));

        if (null === $organization) {
            $template->set('error', 'Organisation nicht gefunden.');
            $template->set('backUrl', $backUrl);

            return $template->getResponse();
        }

        $formData = [
            'title' => (string) ($organization['title'] ?? ''),
            'street' => (string) ($organization['street'] ?? ''),
            'postal' => (string) ($organization['postal'] ?? ''),
            'city' => (string) ($organization['city'] ?? ''),
            'state' => (string) ($organization['state'] ?? ''),
            'country' => (string) ($organization['country'] ?? ''),
            'phone' => (string) ($organization['phone'] ?? ''),
            'email' => (string) ($organization['email'] ?? ''),
            'website' => (string) ($organization['website'] ?? ''),
            'description' => (string) ($organization['description'] ?? ''),
            'tags' => $this->organizationRepository->getTagIdsForOrganization($organizationId),
        ];

        $currentLogoPath = null;

        if (!empty($organization['logo'])) {
            $logoModel = FilesModel::findByUuid((string) $organization['logo']);

            if (null !== $logoModel) {
                $currentLogoPath = $logoModel->path;
            }
        }

        $form = $this->createForm(OrganizationType::class, $formData, [
            'tag_choices' => $this->organizationRepository->getTagChoicesForOrganizationType($allowedOrganizationTagIds),
        ]);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $submittedData = (array) $form->getData();

            $this->organizationRepository->update($organizationId, $submittedData);
            $selectedTagIds = array_values(array_unique(array_map('intval', (array) ($submittedData['tags'] ?? []))));

            if ([] !== $allowedOrganizationTagIds) {
                $selectedTagIds = array_values(array_intersect($selectedTagIds, $allowedOrganizationTagIds));
            }

            $this->organizationRepository->assignTagsToOrganization($organizationId, $selectedTagIds);

            $deleteLogo = '1' === (string) $request->request->get('remove_logo', '0');
            $uploadedLogo = $form->get('logoUpload')->getData();

            if ($uploadedLogo instanceof UploadedFile) {
                $newLogoUuid = $this->storeOrganizationLogo(
                    $uploadedLogo,
                    $model,
                    $organizationId,
                    (string) ($submittedData['title'] ?? ''),
                );

                if (null !== $newLogoUuid) {
                    $this->organizationRepository->updateLogo($organizationId, $newLogoUuid);
                }
            } elseif ($deleteLogo) {
                $this->organizationRepository->updateLogo($organizationId, null);
            }

            if ($request->request->has('save_back')) {
                return new RedirectResponse($backUrl);
            }

            return new RedirectResponse($request->getUri());
        }

        $template->set('form', $form->createView());
        $template->set('backUrl', $backUrl);
        $template->set('requestToken', $this->container->get('contao.csrf.token_manager')->getDefaultTokenValue());
        $template->set('currentLogoPath', $currentLogoPath);

        return $template->getResponse();
    }

    private function storeOrganizationLogo(UploadedFile $uploadedFile, ModuleModel $model, int $organizationId, string $organizationTitle): ?string
    {
        if (empty($model->logoFolder)) {
            return null;
        }

        $folderModel = FilesModel::findByUuid((string) $model->logoFolder);

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

        $uploadBasePath = trim((string) $folderModel->path, '/');

        if ('' === $uploadBasePath) {
            return null;
        }

        $titleSlug = strtolower(StringUtil::generateAlias($organizationTitle));
        $titleSlug = preg_replace('/[^a-z0-9-]+/', '-', $titleSlug ?? '') ?? '';
        $titleSlug = trim($titleSlug, '-');
        $titleSlug = substr($titleSlug, 0, 12);

        if ('' === $titleSlug) {
            $titleSlug = 'organization';
        }

        $targetRelativeDir = sprintf('%s/org-%d-%s', $uploadBasePath, $organizationId, $titleSlug);
        $projectDir = (string) $this->getParameter('kernel.project_dir');
        $targetAbsoluteDir = rtrim($projectDir, '/').'/'.$targetRelativeDir;

        if (!is_dir($targetAbsoluteDir) && !mkdir($targetAbsoluteDir, 0775, true) && !is_dir($targetAbsoluteDir)) {
            return null;
        }

        $originalName = pathinfo($uploadedFile->getClientOriginalName(), PATHINFO_FILENAME);
        $safeName = preg_replace('/[^a-zA-Z0-9_-]+/', '-', (string) $originalName);
        $safeName = trim((string) $safeName, '-');

        if ('' === $safeName) {
            $safeName = 'logo';
        }

        $extension = $uploadedFile->guessExtension() ?: $uploadedFile->getClientOriginalExtension() ?: 'bin';
        $filename = sprintf('%s-%s.%s', $safeName, uniqid('', true), strtolower((string) $extension));

        $uploadedFile->move($targetAbsoluteDir, $filename);

        $relativePath = $targetRelativeDir.'/'.$filename;
        $fileModel = Dbafs::addResource($relativePath);

        return null !== $fileModel ? (string) $fileModel->uuid : null;
    }

    private function resolveBackUrl(Request $request, ModuleModel $model): string
    {
        if ((int) ($model->listPage ?? 0) > 0) {
            $listPage = $this->getContaoAdapter(PageModel::class)->findById((int) $model->listPage);

            if ($listPage instanceof PageModel) {
                return $this->generateContentUrl($listPage);
            }
        }

        $ref = (string) $request->query->get('ref', '');

        if ('' !== $ref) {
            $decoded = base64_decode($ref, true);

            if (false !== $decoded && str_starts_with($decoded, '/')) {
                return $decoded;
            }
        }

        $page = $this->getPageModel();

        return $page instanceof PageModel ? $this->generateContentUrl($page) : '/';
    }
}