<?php

declare(strict_types=1);

/* For licensing terms, see /license.txt */

namespace Chamilo\CourseBundle\Repository;

use Chamilo\CoreBundle\Entity\Course;
use Chamilo\CoreBundle\Entity\ResourceInterface;
use Chamilo\CoreBundle\Entity\User;
use Chamilo\CoreBundle\Repository\ResourceRepository;
use Chamilo\CourseBundle\Entity\CForumPost;
use Chamilo\CourseBundle\Entity\CForumThread;
use Chamilo\CourseBundle\Entity\CGroup;
use Doctrine\Persistence\ManagerRegistry;

class CForumPostRepository extends ResourceRepository
{
    public function __construct(ManagerRegistry $registry)
    {
        parent::__construct($registry, CForumPost::class);
    }

    public function findAllInCourseByThread(
        bool $onlyVisible,
        bool $isAllowedToEdit,
        CForumThread $thread,
        Course $course,
        User $currentUser = null,
        CGroup $group = null,
        string $orderDirection = 'ASC'
    ): array {
        $conditionVisibility = $onlyVisible ? 'p.visible = 1' : 'p.visible != 2';
        $conditionModerated = '';
        $filterModerated = true;

        if (
            (empty($group) && $isAllowedToEdit) ||
            (
                (null !== $group ? $group->userIsTutor($currentUser) : false) ||
                !$onlyVisible
            )
        ) {
            $filterModerated = false;
        }

        if ($filterModerated && $onlyVisible && $thread->getForum()->isModerated()) {
            $userId = null !== $currentUser ? $currentUser->getId() : 0;

            $conditionModerated = 'AND p.status = 1 OR
                (p.status = '.CForumPost::STATUS_WAITING_MODERATION." AND p.posterId = {$userId}) OR
                (p.status = ".CForumPost::STATUS_REJECTED." AND p.poster = {$userId}) OR
                (p.status IS NULL AND p.posterId = {$userId})";
        }

        $dql = "SELECT p
            FROM ChamiloCourseBundle:CForumPost p
            WHERE
                p.thread = :thread AND
                p.cId = :course AND
                {$conditionVisibility}
                {$conditionModerated}
            ORDER BY p.iid {$orderDirection}";

        return $this
            ->getEntityManager()
            ->createQuery($dql)
            ->setParameters([
                'thread' => $thread,
                'course' => $course,
            ])
            ->getResult()
        ;
    }

    public function delete(ResourceInterface $resource): void
    {
        /** @var CForumPost $resource */
        $attachments = $resource->getAttachments();
        if (!empty($attachments)) {
            foreach ($attachments as $attachment) {
                $this->getEntityManager()->remove($attachment);
            }
        }
        parent::delete($resource);
    }
}