<?php

namespace Entity\Repository;

use Doctrine\ORM\EntityRepository;
use Doctrine\Common\Collections\Criteria;
use Doctrine\ORM\NoResultException;

/**
 * JuryRepository
 *
 */
class JuryRepository extends EntityRepository
{
    /**
     * Get all users that are registered in the course. No matter the status
     *
     * @param \Entity\Course $course
     * @return \Entity\Jury
     */
    public function getJuryByPresidentId($userId)
    {
        $qb = $this->createQueryBuilder('a');

        //Selecting user info
        $qb->select('DISTINCT u');

        // Loading EntityUser
        $qb->from('Entity\Jury', 'u');

        // Selecting members
        $qb->innerJoin('u.members', 'c');

        // Inner join with the table c_quiz_question_rel_category.
        $qb->innerJoin('c.role', 'r');

        //@todo check app settings
        //$qb->add('orderBy', 'u.lastname ASC');

        $wherePart = $qb->expr()->andx();

        //Get only users subscribed to this course
        $wherePart->add($qb->expr()->eq('r.role', $qb->expr()->literal('ROLE_JURY_PRESIDENT')));
        $wherePart->add($qb->expr()->eq('c.userId', $userId));

        $qb->where($wherePart);
        $q = $qb->getQuery();

        try {
            return $q->getSingleResult();
        } catch (NoResultException $e) {
            return false;
        }
    }

    /**
     *
     * @param $userId
     * @return \Entity\Jury
     */
    public function getJuryByUserId($userId)
    {
        $qb = $this->createQueryBuilder('a');

        //Selecting user info
        $qb->select('DISTINCT u');

        // Loading EntityUser
        $qb->from('Entity\Jury', 'u');

        // Selecting members
        $qb->innerJoin('u.members', 'c');

        // Inner join with the table c_quiz_question_rel_category.
        $qb->innerJoin('c.role', 'r');

        //@todo check app settings
        //$qb->add('orderBy', 'u.lastname ASC');

        $wherePart = $qb->expr()->andx();

        //Get user
        $wherePart->add($qb->expr()->eq('c.userId', $userId));

        $qb->where($wherePart);
        $q = $qb->getQuery();

        try {
            return $q->getSingleResult();
        } catch (NoResultException $e) {
            return false;
        }
    }

    /**
     * @param int $juryId
     * @param array skip this roles
     *
     * @return bool|mixed
     */
    public function getStudentsByJury($juryId, $skipRoles = array())
    {
        $qb = $this->createQueryBuilder('a');

        //Selecting user info
        $qb->select('DISTINCT u');

        // Loading EntityUser
        $qb->from('Entity\Jury', 'u');

        // Selecting members
        $qb->innerJoin('u.members', 'c');

        // Inner join with the table c_quiz_question_rel_category.
        $qb->innerJoin('c.role', 'r');

        $qb->innerJoin('c.students', 's');

        //@todo check app settings
        //$qb->add('orderBy', 'u.lastname ASC');

        $wherePart = $qb->expr()->andx();

        // Get jury
        $wherePart->add($qb->expr()->eq('u.id', $juryId));

        if (!empty($skipRoles)) {
            foreach ($skipRoles as $role) {
                $wherePart->add($qb->expr()->neq('r.role', $qb->expr()->literal($role)));
            }
        }

        $qb->where($wherePart);

        $q = $qb->getQuery();

        try {
            return $q->getSingleResult();
        } catch (NoResultException $e) {
            return false;
        }
    }
}