<?php

namespace App\Repository\Content;

use App\Entity\Content;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Common\Collections\Criteria;
use Doctrine\ORM\OptimisticLockException;
use Doctrine\ORM\ORMException;
use Symfony\Bridge\Doctrine\RegistryInterface;

final class DoctrineContentRepository extends ServiceEntityRepository implements ContentRepositoryInterface
{
    public function __construct(RegistryInterface $registry)
    {
        parent::__construct($registry, Content::class);
    }

    public function findById(int $contentId): ?object
    {
        return $this->findOneBy(['id' => $contentId]);
    }

    /**
     * @param Content $content
     *
     * @throws ORMException
     * @throws OptimisticLockException
     */
    public function save(Content $content): void
    {
        $this->_em->persist($content);
        $this->_em->flush();
    }

    /**
     * @param Content $content
     *
     * @throws ORMException
     * @throws OptimisticLockException
     */
    public function delete(Content $content): void
    {
        $this->_em->remove($content);
        $this->_em->flush();
    }

    public function findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
    {
        return $this->queryByGrid($criteria, $orderBy, $limit, $offset);
    }

    /**
     * @param array|null $orderBy
     * @param int|null $limit
     * @param int|null $offset
     */
    private function queryByGrid(array $criteria, ?array $orderBy = null, ?int $limit = null, ?int $offset = null): array
    {
        $newCriteria = $this->getCriteria($criteria, $orderBy, $limit, $offset);

        $queryBuilder = $this->createQueryBuilder('content');

        $queryBuilder->innerJoin('content.campaign', 'campaign', 'WITH', 'campaign.paused = 0');

        if (array_key_exists('workflow', $criteria)) {
            $queryBuilder
                ->innerJoin('content.type', 't');
            $newCriteria->andWhere(Criteria::expr()->in('t.workflow', $criteria['workflow']));
        }

        $queryBuilder->addCriteria($newCriteria);

        $query = $queryBuilder->getQuery();

        return $query->getResult();
    }

    /**
     * @param array $criteria
     * @param $orderBy
     * @param $limit
     * @param $offset
     * @param array|null $orderBy
     * @param int|null $limit
     * @param int|null $offset
     *
     */
    private function getCriteria(array $criteria, ?array $orderBy, ?int $limit, ?int $offset): Criteria
    {
        $newCriteria = Criteria::create()
            ->setFirstResult($offset)
            ->setMaxResults($limit);

        if ($orderBy) {
            $newCriteria->orderBy($orderBy);
        }

        if (array_key_exists('q', $criteria)) {
            $newCriteria->where(Criteria::expr()->contains('title', $criteria['q']));
        }

        if (array_key_exists('status', $criteria)) {
            $newCriteria->andWhere(Criteria::expr()->in('status', $criteria['status']));
        }

        if (array_key_exists('type', $criteria)) {
            $newCriteria->andWhere(Criteria::expr()->in('type', $criteria['type']));
        }

        if (array_key_exists('user', $criteria)) {
            if (in_array('null', $criteria['user'])) {
                $arr = array_filter($criteria['user'], function ($e) { return 'null' !== $e; });
                $newCriteria->andWhere(
                    Criteria::expr()->orX(
                        Criteria::expr()->isNull('user'),
                        Criteria::expr()->in('user', $arr)
                    ));
            } else {
                $newCriteria->andWhere(Criteria::expr()->in('user', $criteria['user']));
            }
        }

        if (array_key_exists('campaign', $criteria)) {
            $newCriteria->andWhere(Criteria::expr()->in('campaign', $criteria['campaign']));
        }

        return $newCriteria;
    }

    public function count(array $criteria, array $orderBy = null, $limit = null, $offset = null)
    {
        $result = $this->queryByGrid($criteria);

        return count($result);
    }
}