<?php
namespace App\Controller;

use App\Entity\User;
use App\Form\RegistrationType;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;
use Symfony\Component\Routing\Annotation\Route;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Validator\Validator\ValidatorInterface;

class RegistrationController extends AbstractController
{
    private $entityManager;
    private $passwordHasher;
    private $validator;

    public function __construct(EntityManagerInterface $entityManager, UserPasswordHasherInterface $passwordHasher, ValidatorInterface $validator)
    {
        $this->entityManager = $entityManager;
        $this->passwordHasher = $passwordHasher;
        $this->validator = $validator;
    }

    #[Route('/registration', name: 'app_registration')]
    public function register(Request $request): Response
    {
        $user = new User();
        $form = $this->createForm(RegistrationType::class, $user);
        $form->handleRequest($request);

        if ($form->isSubmitted()) {
            $existingEmail = $this->entityManager->getRepository(User::class)->findOneBy(['email' => $user->getEmail()]);
            $existingPseudo = $this->entityManager->getRepository(User::class)->findOneBy(['pseudo' => $user->getPseudo()]);

            if ($existingEmail) {
                $form->get('email')->addError(new \Symfony\Component\Form\FormError('Cet email est déjà utilisé.'));
            }

            if ($existingPseudo) {
                $form->get('pseudo')->addError(new \Symfony\Component\Form\FormError('Ce pseudo est déjà pris.'));
            }

            $plainPassword = $user->getPassword();
            $confirmPassword = $form->get('confirmPassword')->getData();

            if ($plainPassword !== $confirmPassword) {
                $this->addFlash('error', 'Les mots de passe ne correspondent pas.');
                return $this->redirectToRoute('app_registration');
            }

            $errors = $this->validator->validate($user);
            if (count($errors) > 0) {
                foreach ($errors as $error) {
                    $form->addError(new \Symfony\Component\Form\FormError($error->getMessage()));
                }
            }

            if ($form->isValid()) {
                $hashedPassword = $this->passwordHasher->hashPassword($user, $plainPassword);
                $user->setPassword($hashedPassword);

                $this->entityManager->persist($user);
                $this->entityManager->flush();

                $this->addFlash('success', 'Votre compte a été créé avec succès !');
                return $this->redirectToRoute('home');
            }
        }

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