<?php

declare(strict_types=1);

/**
 * @copyright Copyright (c) 2020, Georg Ehrke
 *
 * @author Georg Ehrke <oc.list@georgehrke.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 OCP\UserStatus;

/**
 * This interface allows to manage the user status.
 *
 * This interface must not be implemented in your application but
 * instead should be used as a service and injected in your code with
 * dependency injection.
 *
 * @since 20.0.0
 */
interface IManager {
	/**
	 * Gets the statuses for all users in $users
	 *
	 * @param string[] $userIds
	 * @return array<string, IUserStatus> array key being the userid, users without a status will not be in the returned array
	 * @since 20.0.0
	 */
	public function getUserStatuses(array $userIds): array;


	/**
	 * Set a new status for the selected user.
	 *
	 * @param string $userId The user for which we want to update the status.
	 * @param string $messageId The id of the predefined message.
	 * @param string $status The status to assign
	 * @param bool $createBackup If true, this will store the old status so that it is possible to revert it later (e.g. after a call).
	 * @since 23.0.0
	 */
	public function setUserStatus(string $userId, string $messageId, string $status, bool $createBackup = false): void;

	/**
	 * Revert an automatically set user status. For example after leaving a call,
	 * change back to the previously set status.
	 *
	 * @param string $userId The user for which we want to update the status.
	 * @param string $messageId The expected current messageId. If the user has already updated their status, this method does nothing.
	 * @param string $status The expected current status. If the user has already updated their status, this method does nothing.
	 * @since 23.0.0
	 */
	public function revertUserStatus(string $userId, string $messageId, string $status): void;

	/**
	 * Revert an automatically set user status. For example after leaving a call,
	 * change back to the previously set status.
	 *
	 * @param string[] $userIds The user for which we want to update the status.
	 * @param string $messageId The expected current messageId. If the user has already updated their status, this method does nothing.
	 * @param string $status The expected current status. If the user has already updated their status, this method does nothing.
	 * @since 23.0.0
	 */
	public function revertMultipleUserStatus(array $userIds, string $messageId, string $status): void;
}