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<?php

declare(strict_types=1);

/**
 * @copyright 2021 Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * @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\DB;

use Doctrine\DBAL\Result;
use OCP\DB\IResult;
use PDO;

/**
 * Adapts DBAL 2.6 API for DBAL 3.x for backwards compatibility of a leaked type
 */
class ResultAdapter implements IResult {
	/** @var Result */
	private $inner;

	public function __construct(Result $inner) {
		$this->inner = $inner;
	}

	public function closeCursor(): bool {
		$this->inner->free();

		return true;
	}

	public function fetch(int $fetchMode = PDO::FETCH_ASSOC) {
		return $this->inner->fetch($fetchMode);
	}

	public function fetchAll(int $fetchMode = PDO::FETCH_ASSOC): array {
		if ($fetchMode !== PDO::FETCH_ASSOC && $fetchMode !== PDO::FETCH_NUM && $fetchMode !== PDO::FETCH_COLUMN) {
			throw new \Exception('Fetch mode needs to be assoc, num or column.');
		}
		return $this->inner->fetchAll($fetchMode);
	}

	public function fetchColumn($columnIndex = 0) {
		return $this->inner->fetchOne();
	}

	public function fetchOne() {
		return $this->inner->fetchOne();
	}

	public function rowCount(): int {
		return $this->inner->rowCount();
	}
}