<?php

namespace App\Security;

use App\Entity\User;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\CustomUserMessageAuthenticationException;
use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
use Symfony\Component\Security\Core\Exception\InvalidCsrfTokenException;
use Symfony\Component\Security\Core\Security;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Csrf\CsrfToken;
use Symfony\Component\Security\Csrf\CsrfTokenManagerInterface;
use Symfony\Component\Security\Guard\Authenticator\AbstractFormLoginAuthenticator;
use Symfony\Component\Security\Http\Util\TargetPathTrait;
use App\Entity\Year;
use Doctrine\Persistence\ManagerRegistry;

class LoginAuthenticator extends AbstractFormLoginAuthenticator
{
    use TargetPathTrait;

    private $entityManager;
    private $urlGenerator;
    private $csrfTokenManager;
    private $passwordEncoder;
    private $doctrine;

    public function __construct(EntityManagerInterface $entityManager, UrlGeneratorInterface $urlGenerator, CsrfTokenManagerInterface $csrfTokenManager, UserPasswordEncoderInterface $passwordEncoder, ManagerRegistry $doctrine)
    {
        $this->entityManager = $entityManager;
        $this->urlGenerator = $urlGenerator;
        $this->csrfTokenManager = $csrfTokenManager;
        $this->passwordEncoder = $passwordEncoder;
        $this->doctrine = $doctrine;
    }

    public function supports(Request $request)
    {
        return 'app_login' === $request->attributes->get('_route')
            && $request->isMethod('POST');
    }

    public function getCredentials(Request $request)
    {
        $credentials = [
            'username' => $request->request->get('username'),
            'password' => $request->request->get('password'),
            'csrf_token' => $request->request->get('_csrf_token'),
        ];
        $request->getSession()->set(
            Security::LAST_USERNAME,
            $credentials['username']
        );

        return $credentials;
    }

    public function getUser($credentials, UserProviderInterface $userProvider)
    {
        $token = new CsrfToken('authenticate', $credentials['csrf_token']);
        if (!$this->csrfTokenManager->isTokenValid($token)) {
            throw new InvalidCsrfTokenException();
        }

        $user = $this->entityManager->getRepository(User::class)->findOneBy(['email' => $credentials['username']]);

        if (!$user) {
            // fail authentication with a custom error
            throw new CustomUserMessageAuthenticationException('Username could not be found.');
        }

        return $user;
    }

    public function checkCredentials($credentials, UserInterface $user)
    {
        return $this->passwordEncoder->isPasswordValid($user, $credentials['password']);
    }

    public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
    {
        // Mettre en session l'année en cours
        $request->getSession()->set('_year', $this->doctrine->getRepository(Year::class)->maxYear());

        // Mettre en session le ministère de l'utilisateur
        $ministry = null;
        $commune = null;
        $departement = null;
        $user = $token->getUser();
        if (!$user->hasRole('ROLE_ADMIN') AND !$user->hasRole('ROLE_MANAGER')) {
            //$ministry = $user->getDirection()->getMinistry();
            if($user->getDirection()){
                $ministry = $user->getDirection()->getMinistry();
            }else if($user->getCommune()){
                $commune = $user->getCommune();
            }else if($user->getDepartment()){
                $departement = $user->getDepartment();
            }
        }
        
        $request->getSession()->set('_ministry', $ministry);
        $request->getSession()->set('_commune', $commune);
        $request->getSession()->set('_departement', $departement);

        
        if ($targetPath = $this->getTargetPath($request->getSession(), $providerKey)) {
            return new RedirectResponse($targetPath);
        }

        // For example : return new RedirectResponse($this->urlGenerator->generate('some_route'));
        #throw new \Exception('TODO: provide a valid redirect inside '.__FILE__);
        // redirect to some "homepage" route - of wherever you want
        return new RedirectResponse($this->urlGenerator->generate('app_apps'));
    }

    protected function getLoginUrl()
    {
        return $this->urlGenerator->generate('app_login');
    }
}