<?php

namespace App\Repository;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\EntityRepository;

class AlertRepository extends EntityRepository
{
    // getOnlineAlert
    public function getOnlineAlert(array $roles = [], string $order = 'ASC'): array
    {
        if (!in_array($order, ['ASC', 'DESC'], true)) {
            throw new \UnexpectedValueException('Wrong order: '.$order);
        }

        $qb = $this->createQueryBuilder('a');
        $qb->join('a.roles', 'r');

        if (count($roles)) {
            $ids = [];

            foreach ($roles as $r) {
                $ids[] = (int) $r->getId();
            }

            $qb->andWhere($qb->expr()->in('r.id', $ids));
        }

        $qb->andWhere('a.publishedat <= :today')
          ->andWhere($qb->expr()->orX(
              $qb->expr()->gt('a.unpublishedat', ':today'),
              $qb->expr()->isNull('a.unpublishedat')
          ))
          ->orderBy('a.rowOrder', $order);

        return $qb->getQuery()
            ->setParameter('today', date('Y-m-d'))
            ->getResult()
        ;
    }

    public function getUserAlerts($user, $idalertcategory, $alertcategoryfilter)
    {
        // Profilage
        $roles = ($user ? $user->getRoles() : ['ROLE_ANONYME']);
        $groups = ($user ? $user->getGroups() : []);

        $userreads = ($user ? $user->getAlertreaders() : new ArrayCollection());

        // Initialisation du calcul des alerts
        $alerts = new ArrayCollection();

        // Récupération des alerts par rôles
        foreach ($roles as $role) {
            $qb = $this->createQueryBuilder('a');
            $qb->select('alert')
                ->from('App:Alert', 'alert')
                ->where($qb->expr()->like('alert.roles', $qb->expr()->literal("%$role%")))
                ->andWhere('alert.publishedat <= :today')
                ->andWhere($qb->expr()->orX(
                    $qb->expr()->gt('alert.unpublishedat', ':today'),
                    $qb->expr()->isNull('alert.unpublishedat')
                ))
                ->setParameter('today', date('Y-m-d'));

            if ($idalertcategory && $alertcategoryfilter) {
                $qb->andWhere('alert.alertcategory=:alertcategory')
                    ->setParameter('alertcategory', $alertcategoryfilter);
            }
            $alertsroles = $qb->getQuery()->getResult();

            foreach ($alertsroles as $alertrole) {
                if (!$alerts->contains($alertrole) && !$userreads->contains($alertrole)) {
                    $alerts->add($alertrole);
                }
            }
        }

        // Récupération des alerts par group
        foreach ($groups as $group) {
            $qb = $this->createQueryBuilder('a');
            $qb->select('alert')
                ->from('App:Alert', 'alert')
                ->where(':group MEMBER OF alert.groups')
                ->andWhere('alert.publishedat <= :today')
                ->andWhere($qb->expr()->orX(
                    $qb->expr()->gt('alert.unpublishedat', ':today'),
                    $qb->expr()->isNull('alert.unpublishedat')
                ))
                ->setParameter('group', $group->getGroup())
                ->setParameter('today', date('Y-m-d'));

            if ($idalertcategory && $alertcategoryfilter) {
                $qb->andWhere('alert.alertcategory=:alertcategory')
                    ->setParameter('alertcategory', $alertcategoryfilter);
            }
            $alertsgroups = $qb->getQuery()->getResult();
            foreach ($alertsgroups as $alertgroup) {
                if (!$alerts->contains($alertgroup) && !$userreads->contains($alertgroup)) {
                    $alerts->add($alertgroup);
                }
            }
        }

        // Trie des alerts
        $alertsordered = $alerts->getIterator();
        $alertsordered->uasort(function ($first, $second) {
            return (int) $first->getRowOrder() > (int) $second->getRowOrder() ? 1 : -1;
        });

        return $alertsordered;
    }
}