<?php

namespace App\Controller;

use App\BusProNet\ApiClient;
use App\BusProNet\Exception\ApiClientException;
use App\BusProNet\Model\Notification;
use App\BusProNet\Model\PersonalData;
use App\Entity\User;
use App\Form\PersonalDataType;
use App\Security\Crypt;
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;

/**
 * Controller for managing customer personal data operations.
 *
 * Provides functionality for viewing and updating customer profile information
 * through integration with the BusProNet API system. Handles personal data
 * management and newsletter subscription preferences for authenticated users.
 */
class PersonalDataController extends AbstractController
{
    /**
     * @param ApiClient       $apiClient BusProNet API client for data operations
     * @param Crypt           $crypt     Encryption service for password handling
     * @param LoggerInterface $logger    Logger for audit trails and debugging
     */
    public function __construct(
        private readonly ApiClient $apiClient,
        private readonly Crypt $crypt,
        private readonly LoggerInterface $logger,
    ) {
    }

    /**
     * Display and handle updates to customer personal data.
     *
     * Fetches current personal data from BusProNet API and displays an editable form.
     * Handles form submission to update personal information including address and
     * communication details. Uses the Post-Redirect-Get pattern for form processing.
     *
     * @param Request $request The HTTP request containing form data
     *
     * @return Response The rendered personal data page or redirect response
     *
     * @throws ApiClientException When BusProNet API communication fails
     */
    #[Route('/personal-data', name: 'app_personal_data')]
    #[IsGranted('ROLE_USER')]
    public function index(Request $request): Response
    {
        /** @var User $user */
        $user = $this->getUser();
        $email = $user->getEmail();
        $password = $this->crypt->decrypt($user->getPassword());

        try {
            $personalData = $this
                ->apiClient
                ->getPersonalData($email, $password);
        } catch (ApiClientException $e) {
            $this->addFlash('error', 'Deine persönlichen Daten konnten nicht abgerufen werden');
            $personalData = new PersonalData();
        }

        if ($personalData instanceof Notification) {
            $this->logger->error('Unable to fetch personal data', [
                'code' => $personalData->code,
                'error' => $personalData->message,
            ]);

            $this->addFlash('error', 'Deine persönlichen Daten konnten nicht abgerufen werden');
            $personalData = new PersonalData();
        }

        $personalDataForm = $this->createForm(PersonalDataType::class, $personalData, [
            'attr' => ['novalidate' => 'novalidate'],
            'validation_groups' => ['personal_data'],
        ]);
        $personalDataForm->handleRequest($request);

        if ($personalDataForm->isSubmitted() && $personalDataForm->isValid()) {
            try {
                $this->apiClient->updatePersonalData($email, $password, $personalData);
                $this->addFlash('success', 'Deine persönlichen Daten wurden aktualisiert');
                $this->logger->info('Updated personal data', [
                    'email' => $user->getEmail(),
                ]);
            } catch (ApiClientException $e) {
                $this->addFlash('error', $e->getMessage());
            }

            return $this->redirectToRoute('app_personal_data');
        }

        return $this->render('personal_data/index.html.twig', [
            'personalData' => $personalData,
            'personalDataForm' => $personalDataForm->createView(),
        ]);
    }

    /**
     * Toggle newsletter subscription status for the authenticated user.
     *
     * Retrieves current personal data, toggles the newsletter subscription flag,
     * and updates the preference via BusProNet API. Designed for HTMX AJAX
     * requests to provide immediate feedback without full page reload.
     *
     * @return Response Redirect response to personal data page
     *
     * @throws ApiClientException When BusProNet API communication fails
     */
    #[Route('/personal-data/newsletter', name: 'app_personal_data_newsletter', methods: ['POST'])]
    #[IsGranted('ROLE_USER')]
    public function newsletter(): Response
    {
        /** @var User $user */
        $user = $this->getUser();
        $email = $user->getEmail();
        $password = $this->crypt->decrypt($user->getPassword());

        try {
            $personalData = $this
                ->apiClient
                ->getPersonalData($email, $password);
        } catch (ApiClientException $e) {
            $this->addFlash('error', 'Deine persönlichen Daten konnten nicht abgerufen werden');
            $personalData = new PersonalData();
        }

        $personalData->communication->newsletter = !$personalData->communication->newsletter;

        try {
            $this->apiClient->updateNewsletterRegistration($email, $password, $personalData);
            $this->addFlash('success', 'Deine Anmeldung zum Newsletter wurde aktualisiert');
            $this->logger->info('Updated newsletter registration', [
                'email' => $user->getEmail(),
            ]);
        } catch (ApiClientException $e) {
            $this->addFlash('error', $e->getMessage());
        }

        return $this->redirectToRoute('app_personal_data');
    }
}