<?php
/**
 * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
 *
 * @author Joas Schilling <coding@schilljs.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\Activity;

/**
 * Interface IFilter
 *
 * @package OCP\Activity
 * @since 11.0.0
 */
interface IFilter {

	/**
	 * @return string Lowercase a-z and underscore only identifier
	 * @since 11.0.0
	 */
	public function getIdentifier();

	/**
	 * @return string A translated string
	 * @since 11.0.0
	 */
	public function getName();

	/**
	 * @return int whether the filter should be rather on the top or bottom of
	 * the admin section. The filters are arranged in ascending order of the
	 * priority values. It is required to return a value between 0 and 100.
	 * @since 11.0.0
	 */
	public function getPriority();

	/**
	 * @return string Full URL to an icon, empty string when none is given
	 * @since 11.0.0
	 */
	public function getIcon();

	/**
	 * @param string[] $types
	 * @return string[] An array of allowed apps from which activities should be displayed
	 * @since 11.0.0
	 */
	public function filterTypes(array $types);

	/**
	 * @return string[] An array of allowed apps from which activities should be displayed
	 * @since 11.0.0
	 */
	public function allowedApps();
}