<?php

namespace App\EventListener;

use App\Entity\Niveau03 as Entity;
use App\Service\LdapService;
use Doctrine\Bundle\DoctrineBundle\EventSubscriber\EventSubscriberInterface;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Events;
use Doctrine\Persistence\Event\LifecycleEventArgs;

class Niveau03Subscriber implements EventSubscriberInterface
{
    private $em;
    private $entity;
    private $ldap;

    public function __construct(EntityManagerInterface $em, LdapService $ldap)
    {
        $this->em = $em;
        $this->ldap = $ldap;
    }

    public function getSubscribedEvents(): array
    {
        return [
            Events::postPersist,
            Events::preUpdate,
            Events::postUpdate,
            Events::preRemove,
            Events::postRemove,
        ];
    }

    public function postPersist(LifecycleEventArgs $args): void
    {
        $this->entity = $args->getObject();
        if (!$this->entity instanceof Entity) {
            return;
        }

        // Synchronisation nine2ldap
        $this->nine2ldap();
    }

    public function preUpdate(LifecycleEventArgs $args): void
    {
        $this->entity = $args->getObject();
        if (!$this->entity instanceof Entity) {
            return;
        }
    }

    public function postUpdate(LifecycleEventArgs $args): void
    {
        $this->entity = $args->getObject();
        if (!$this->entity instanceof Entity) {
            return;
        }

        // Synchronisation nine2ldap
        $this->nine2ldap();
    }

    public function preRemove(LifecycleEventArgs $args): void
    {
        $this->entity = $args->getObject();
        if (!$this->entity instanceof Entity) {
            return;
        }

        // Impossible de supprimer si présence de niveau04 rattaché
        if (!$this->entity->getNiveau04s()->isEmpty()) {
            throw new \Exception('Impossible de supprimer cet enregistrement. Il est lié à des niveaux de rang 04');
        }

        // Impossible de supprimer si présence de registration rattaché
        if (!$this->entity->getRegistrations()->isEmpty()) {
            throw new \Exception('Impossible de supprimer cet enregistrement. Il est lié à des inscriptions');
        }

        // Impossible de supprimer si présence de user rattaché
        if (!$this->entity->getUsers()->isEmpty()) {
            throw new \Exception('Impossible de supprimer cet enregistrement. Il est lié à des utilisateurs');
        }

        // Synchronisation nine2ldap
        $this->nine2ldapremove();
    }

    public function postRemove(LifecycleEventArgs $args): void
    {
        $this->entity = $args->getObject();
        if (!$this->entity instanceof Entity) {
            return;
        }
    }

    private function nine2ldap()
    {
        if ($this->ldap->isNine2Ldap()) {
            // On s'assure que la structure organisationnelle est présente
            $this->ldap->addOrganisations();

            // Ajout / Modification dans annuaire
            $filter = 'gidnumber='.$this->entity->getId();
            $attributes = $this->ldap->listAttributesNiveau03();
            $ldapentrys = $this->ldap->search($filter, $attributes, $this->ldap->getParameter('baseniveau03'));
            if (empty($ldapentrys)) {
                $this->ldap->addNiveau03($this->entity);
            } elseif ($this->ldap->ismodifyNiveau03($this->entity, $ldapentrys[0])) {
                $this->ldap->modifyNiveau03($this->entity, $ldapentrys[0]['cn']);
            }
        }
    }

    private function nine2ldapremove()
    {
        if ($this->ldap->isNine2Ldap()) {
            $filter = 'gidnumber='.$this->entity->getId();
            $attributes = $this->ldap->listAttributesNiveau03();
            $ldapentrys = $this->ldap->search($filter, $attributes, $this->ldap->getParameter('baseniveau03'));
            if (!empty($ldapentrys)) {
                $this->ldap->deleteNiveau03($this->entity);
            }
        }
    }
}