<?php

/**
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Chill\PersonBundle\Export;

use Doctrine\ORM\QueryBuilder;
use LogicException;

use function in_array;

class AbstractAccompanyingPeriodExportElement
{
    /**
     * Add the accompanying period alias to the query.
     *
     * @throws LogicException if the "person" alias is not present and attaching accompanying period is not possible
     */
    protected function addJoinAccompanyingPeriod(QueryBuilder $query): void
    {
        if (false === $this->havingAccompanyingPeriodInJoin($query)) {
            if (false === in_array('person', $query->getAllAliases(), true)) {
                throw new LogicException("the alias 'person' does not exists in "
                    . 'query builder');
            }

            $query->join('person.accompanyingPeriods', 'accompanying_period');
        }
    }

    /**
     * Return true if "accompanying_period" alias is present in the query alises.
     */
    protected function havingAccompanyingPeriodInJoin(QueryBuilder $query): bool
    {
        $joins = $query->getDQLPart('join') ?? [];

        return in_array('accompanying_period', $query->getAllAliases(), true);
    }
}