<?php

namespace Wallabag\CommentBundle\Repository;

use Doctrine\ORM\EntityRepository;

/**
 * CommentRepository.
 *
 * This class was generated by the Doctrine ORM. Add your own custom
 * repository methods below.
 */
class CommentRepository extends EntityRepository
{
    /**
     * Return a query builder to used by other getBuilderFor* method.
     *
     * @param int $userId
     *
     * @return QueryBuilder
     */
    private function getBuilderByUser($userId)
    {
        return $this->createQueryBuilder('c')
            ->leftJoin('c.user', 'u')
            ->andWhere('u.id = :userId')->setParameter('userId', $userId)
            ->orderBy('c.id', 'desc')
        ;
    }

    /**
     * Retrieves all comments for a user.
     *
     * @param int $userId
     *
     * @return QueryBuilder
     */
    public function getBuilderForAllByUser($userId)
    {
        return $this
            ->getBuilderByUser($userId)
        ;
    }

    /**
     * Get comment for this id.
     *
     * @param int $commentId
     *
     * @return array
     */
    public function findCommentById($commentId)
    {
        return $this->createQueryBuilder('c')
            ->andWhere('c.id = :commentId')->setParameter('commentId', $commentId)
            ->getQuery()->getSingleResult()
        ;
    }

    /**
     * Find comments for entry id.
     *
     * @param int $entryId
     * @param int $userId
     *
     * @return array
     */
    public function findCommentsByPageId($entryId, $userId)
    {
        return $this->createQueryBuilder('c')
            ->where('c.entry = :entryId')->setParameter('entryId', $entryId)
            ->andwhere('c.user = :userId')->setParameter('userId', $userId)
            ->getQuery()->getResult()
        ;
    }

    /**
     * Find last comment for a given entry id. Used only for tests.
     *
     * @param int $entryId
     *
     * @return array
     */
    public function findLastCommentByPageId($entryId, $userId)
    {
        return $this->createQueryBuilder('c')
            ->where('c.entry = :entryId')->setParameter('entryId', $entryId)
            ->andwhere('c.user = :userId')->setParameter('userId', $userId)
            ->orderBy('c.id', 'DESC')
            ->setMaxResults(1)
            ->getQuery()
            ->getOneOrNullResult();
    }
}