<?php
/**
 * This file is part of workerman.
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the MIT-LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @author walkor<walkor@workerman.net>
 * @copyright walkor<walkor@workerman.net>
 * @link http://www.workerman.net/
 * @license http://www.opensource.org/licenses/mit-license.php MIT License
 */

/**
 * 用于检测业务代码死循环或者长时间阻塞等问题
 * 如果发现业务卡死，可以将下面declare打开（去掉//注释），并执行php start.php reload
 * 然后观察一段时间workerman.log看是否有process_timeout异常
 */

//declare(ticks=1);

use GatewayWorker\Lib\Gateway;

/**
 * 主逻辑
 * 主要是处理 onConnect onMessage onClose 三个方法
 * onConnect 和 onClose 如果不需要可以不用实现并删除
 */
class Events
{
    /**
     * 当客户端连接时触发
     * 如果业务不需此回调可以删除onConnect
     * @param int $clientId 连接id
     * @throws Exception
     */
    public static function onConnect($clientId)
    {
        $message = json_encode([
            'type' => 'welcome',
            'message' => 'just enjoy it',
        ]);

        Gateway::sendToClient($clientId, $message);
    }

    /**
     * 当客户端发来消息时触发
     * @param int $clientId 连接id
     * @param mixed $message 具体消息
     * @throws Exception
     */
    public static function onMessage($clientId, $message)
    {
        $content = json_decode($message, true);

        if (!isset($content['type'])) return;

        if ($content['type'] == 'join_group') {

            $_SESSION['group'] = $content['group'];

            Gateway::joinGroup($clientId, $content['group']);

        } elseif ($content['type'] == 'send_danmaku') {

            $message = [
                'type' => 'show_danmaku',
                'danmaku' => $content['danmaku'],
            ];

            Gateway::sendToGroup($_SESSION['group'], json_encode($message), [$clientId]);
        }
    }

    /**
     * 当用户断开连接时触发
     * @param int $clientId 连接id
     * @throws Exception
     */
    public static function onClose($clientId)
    {

    }

}