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<?php

declare(strict_types=1);
/**
 * @copyright Copyright (c) 2021 Joas Schilling <coding@schilljs.com>
 *
 * @author Joas Schilling <coding@schilljs.com>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OC\Core\Migrations;

use Closure;
use OCP\IDBConnection;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;

/**
 * Email addresses are case insensitive
 * But previously a user could enter any casing of the email address
 * and we would in case of a login lower case the input and the database value.
 *
 */
class Version24000Date20211210141942 extends SimpleMigrationStep {
	/** @var IDBConnection */
	protected $connection;

	public function __construct(IDBConnection $connection) {
		$this->connection = $connection;
	}

	/**
	 * @param IOutput $output
	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
	 * @param array $options
	 */
	public function postSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
		$update = $this->connection->getQueryBuilder();

		$update->update('preferences')
			->set('configvalue', $update->func()->lower('configvalue'))
			->where($update->expr()->eq('appid', $update->createNamedParameter('settings')))
			->andWhere($update->expr()->eq('configkey', $update->createNamedParameter('email')));

		$update->executeStatement();
	}
}