<?php

declare(strict_types=1);

/**
 * @copyright 2020 Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * @author 2020 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 OCA\Mail\Db;

use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\QBMapper;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;

/**
 * @template-extends QBMapper<Classifier>
 */
class ClassifierMapper extends QBMapper {
	public function __construct(IDBConnection $db) {
		parent::__construct($db, 'mail_classifiers');
	}

	/**
	 * @param int $id
	 *
	 * @return Classifier
	 * @throws DoesNotExistException
	 */
	public function findLatest(int $id): Classifier {
		$qb = $this->db->getQueryBuilder();

		$select = $qb->select('*')
			->from($this->getTableName())
			->where(
				$qb->expr()->eq('account_id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT), IQueryBuilder::PARAM_INT),
				$qb->expr()->eq('active', $qb->createNamedParameter(true, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL)
			)
			->orderBy('created_at', 'desc')
			->setMaxResults(1);

		return $this->findEntity($select);
	}

	public function findHistoric(int $threshold, int $limit) {
		$qb = $this->db->getQueryBuilder();
		$select = $qb->select('*')
			->from($this->getTableName())
			->where(
				$qb->expr()->lte('created_at', $qb->createNamedParameter($threshold, IQueryBuilder::PARAM_INT), IQueryBuilder::PARAM_INT),
			)
			->orderBy('created_at', 'asc')
			->setMaxResults($limit);
		return $this->findEntities($select);
	}
}
