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<?php

declare(strict_types=1);
/**
 * @copyright Copyright (c) 2023 Julius Härtl <jus@bitgrid.net>
 *
 * @author Julius Härtl <jus@bitgrid.net>
 *
 * @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 OCP\DB\Events;

/**
 * Event to allow apps to register information about missing database primary keys
 *
 * This event will be dispatched for checking on the admin settings and when running
 * occ db:add-missing-primary-keys which will then create those keys
 *
 * @since 28.0.0
 */
class AddMissingPrimaryKeyEvent extends \OCP\EventDispatcher\Event {
	/** @var array<array-key, array{tableName: string, primaryKeyName: string, columns: string[], formerIndex: null|string}> */
	private array $missingPrimaryKeys = [];

	/**
	 * @param string[] $columns
	 * @since 28.0.0
	 */
	public function addMissingPrimaryKey(string $tableName, string $primaryKeyName, array $columns, ?string $formerIndex = null): void {
		$this->missingPrimaryKeys[] = [
			'tableName' => $tableName,
			'primaryKeyName' => $primaryKeyName,
			'columns' => $columns,
			'formerIndex' => $formerIndex,
		];
	}

	/**
	 * @since 28.0.0
	 * @return array<array-key, array{tableName: string, primaryKeyName: string, columns: string[], formerIndex: null|string}>
	 */
	public function getMissingPrimaryKeys(): array {
		return $this->missingPrimaryKeys;
	}
}