Tims-Chat/files/lib/system/command/ICommand.class.php

<?php

/*
 * Copyright (c) 2010-2022 Tim Düsterhus.
 *
 * Use of this software is governed by the Business Source License
 * included in the LICENSE file.
 *
 * Change Date: 2027-02-22
 *
 * On the date above, in accordance with the Business Source
 * License, use of this software will be governed by version 2
 * or later of the General Public License.
 */

namespace chat\system\command;

use chat\data\room\Room;
use wcf\data\user\UserProfile;

/**
 * Interface for Command processors.
 */
interface ICommand
{
    /**
     * Returns whether the command can be used even when
     * no trigger is configured for it.
     *
     * @return boolean
     */
    public function allowWithoutTrigger();

    /**
     * Returns the name of the JavaScript module.
     *
     * @return string
     */
    public function getJavaScriptModuleName();

    /**
     * Returns whether this command theoretically is available
     * in the given room, for the given user.
     * If no user is given the active user should be assumed.
     *
     * The return value sets a flag for the JavaScript to
     * consume. You still need to validate() this as well!
     *
     * @param   Room              $room
     * @param   UserProfile       $user
     * @return  boolean
     */
    public function isAvailable(Room $room, ?UserProfile $user = null);

    /**
     * Validates the execution of the command with the given parameters
     * in the given room for the given user.
     * If no user is given the active user should be assumed.
     * This method must throw if the command may not be executed in this form.
     *
     * @param   mixed             $parameters
     * @param   Room              $room
     * @param   UserProfile       $user
     */
    public function validate($parameters, Room $room, ?UserProfile $user = null);

    /**
     * Executes the command with the given parameters in the given room in
     * the context of the given user.
     * If no user is given the active user should be assumed.
     * This method must throw if the command may not be executed in this form.
     *
     * @param   mixed             $parameters
     * @param   Room              $room
     * @param   UserProfile       $user
     */
    public function execute($parameters, Room $room, ?UserProfile $user = null);
}