LightState.php

<?php

declare(strict_types=1);

/**
 * IPC light state.
 *
 * This file is part of MadelineProto.
 * MadelineProto 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.
 * MadelineProto 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 General Public License along with MadelineProto.
 * If not, see <http://www.gnu.org/licenses/>.
 *
 * @author    Daniil Gentili <daniil@daniil.it>
 * @copyright 2016-2023 Daniil Gentili <daniil@daniil.it>
 * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
 * @link https://docs.madelineproto.xyz MadelineProto documentation
 */

namespace danog\MadelineProto;

/**
 * Light state.
 *
 * @internal
 */
final class LightState
{
    /**
     * Event handler class name.
     *
     * @var null|class-string<EventHandler>
     */
    private ?string $eventHandler = null;

    public function __construct(MTProto $API)
    {
        if ($API->hasEventHandler()) {
            $this->eventHandler = $API->getEventHandler()::class;
        }
    }

    /**
     * Check whether we can start IPC.
     */
    public function canStartIpc(): bool
    {
        return !$this->eventHandler || class_exists($this->eventHandler);
    }

    /**
     * Get event handler class name.
     *
     * @return null|class-string<EventHandler>
     */
    public function getEventHandler(): ?string
    {
        return $this->eventHandler;
    }
}