thomas-claireau/PHP-P6-Openclassrooms

<?php

namespace App\Repository;

use App\Entity\User;
use App\Entity\Comment;
use Doctrine\ORM\Query;
use Doctrine\Common\Persistence\ManagerRegistry;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;

/**
 * @method Comment|null find($id, $lockMode = null, $lockVersion = null)
 * @method Comment|null findOneBy(array $criteria, array $orderBy = null)
 * @method Comment[]    findAll()
 * @method Comment[]    findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
 */
class CommentRepository extends ServiceEntityRepository
{
    public function __construct(ManagerRegistry $registry)
    {
        parent::__construct($registry, Comment::class);
    }

    public function resetIndex()
    {
        $connection = $this->getEntityManager()->getConnection();
        $connection->exec("ALTER TABLE comment AUTO_INCREMENT = 1;");
    }

    /**
     * @return Comment[]
     */
    public function findItems(int $index = 1, $idFigure): array
    {
        return $this->getQueryDesc($index, $idFigure)
            ->getQuery()
            ->getResult();
    }

    public function findMoreItems(int $index, $idFigure): array
    {
        if ($index !== 1) {
            return $this->getQueryDesc($index, $idFigure)
                ->getQuery()
                ->getResult(Query::HYDRATE_ARRAY);
        }
    }

    public function countAll($idFigure)
    {
        return intval($this->createQueryBuilder('p')
            ->select('COUNT(p)')
            ->where('p.figure = :id_figure')
            ->setParameter('id_figure', $idFigure)
            ->getQuery()->getSingleScalarResult());
    }

    private function getQueryDesc(int $index, $idFigure)
    {
        $total = $this->countAll($idFigure);
        $nbResultsPerPage = 10;


        $nbGroups = round($total / $nbResultsPerPage);
        $start = 0;
        $intervals = [];

        if (!$total || !$nbGroups) {
            return $this->createQueryBuilder('p')
                ->orderBy('p.created_at', 'DESC')
                ->where('p.figure = :id_figure')
                ->setParameter('id_figure', $idFigure)
                ->setMaxResults($nbResultsPerPage);
        }

        for ($i = 1; $i <= $nbGroups; $i++) {
            $intervals[$i] = [
                'start' => $start
            ];

            $start += $nbResultsPerPage;
        }

        $interval = $intervals[$index];

        return $this->createQueryBuilder('p')
            ->orderBy('p.created_at', 'DESC')
            ->where('p.figure = :id_figure')
            ->setParameter('id_figure', $idFigure)
            ->setFirstResult($interval['start'])
            ->setMaxResults($nbResultsPerPage);
    }
}