<?php

declare(strict_types=1);

/*
 * 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.
 */

namespace Chill\Migrations\Main;

use Doctrine\DBAL\Schema\Schema;
use Doctrine\Migrations\AbstractMigration;
use Doctrine\ORM\Query\ResultSetMapping;
use RuntimeException;
use Symfony\Component\DependencyInjection\ContainerInterface;

use function count;

/**
 * Migrate association from
 *     ManyToMany between PermissionGroup <-> GroupCenter
 * to
 *     ManyToOne : a GroupCenter can have only one PermissionGroup.
 */
class Version20150821105642 extends AbstractMigration
{
    public function down(Schema $schema): void
    {
        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');

        $this->addSql('ALTER TABLE group_centers DROP CONSTRAINT FK_A14D8F3D447BBB3B');
        $this->addSql('DROP INDEX IDX_A14D8F3D447BBB3B');
        $this->addSql('ALTER TABLE group_centers DROP permissionGroup_id');
    }

    public function up(Schema $schema): void
    {
        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');

        $this->addSql('ALTER TABLE group_centers ADD permissionsGroup_id INT DEFAULT NULL');
        $this->addSql('ALTER TABLE group_centers ADD CONSTRAINT FK_A14D8F3D447BBB3B FOREIGN KEY (permissionsGroup_id) REFERENCES permission_groups (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
        $this->addSql('CREATE INDEX IDX_A14D8F3D447BBB3B ON group_centers (permissionsGroup_id)');
    }
}