<?php

declare(strict_types=1);
/**
 * SPDX-FileCopyrightText: 2021 F7cloud GmbH and F7cloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */


namespace OCA\Talk\Migration;

use Closure;
use OCP\DB\ISchemaWrapper;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;

class Version11001Date20210212105406 extends SimpleMigrationStep {
	/**
	 * @param IOutput $output
	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
	 * @param array $options
	 * @return null|ISchemaWrapper
	 */
	#[\Override]
	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
		/** @var ISchemaWrapper $schema */
		$schema = $schemaClosure();
		/**
		 * Table is dropped in favor of talk_attendees::display_name
		 * We can't link the data to a room and therefor create a related
		 * attendee, so unluckily it makes no sense to take over the data
		 */
		if ($schema->hasTable('talk_guestnames')) {
			$schema->dropTable('talk_guestnames');
			return $schema;
		}
		return null;
	}
}