<?php

namespace app\common\library\live;

use fast\Http;
use think\Cache;
use think\Session;
use app\common\exception\Exception;
/**
 * 直播地址
 */
class Url
{

    //生成鉴权URL的时间，与鉴权URL有效时长共同控制鉴权URL的失效时间。使用UNIX时间戳表示（单位：秒）。
    protected static $expireTime = 60 * 10;


    /**
     * 推流域名
     * @param $appName
     * @param $streamName
     * @return string[]
     */
    public static function pushUrl($appName, $streamName,$args=[])
    {
        $config = \app\common\model\config\System::getConfig('ali_live');
        $push_url = [
            'rtmp'=>'',
//            'rts'=>''
        ];

        $push_url['rtmp'] = 'rtmp://' . $config['push_domain'] . '/' . $appName . '/' . $streamName;
//        $push_url['rts'] = 'artc://' . $config['push_domain'] . '/' . $appName . '/' . $streamName;

        //未开启鉴权Key的情况下
        if ($config['push_key']) {
            $timeStamp = time() + self::$expireTime;
            $sstring = '/' . $appName . '/' . $streamName . '-' . $timeStamp . '-0-0-' . $config['push_key'];
            $md5hash = md5($sstring);
            $args['auth_key'] = $timeStamp . '-0-0-' . $md5hash;
        }

        $push_url['rtmp'] .= '?'.http_build_query($args);
//        $push_url['rts'] .= '?'.http_build_query($args);
        return $push_url;
    }


    /**
     * 播流域名
     * @param $appName
     * @param $streamName
     * @param string $templateId 转码模板ID，非空时生成转码流地址
     * @return string[]
     */
    public static function playUrl($appName, $streamName, $templateId = '')
    {
        $config = \app\common\model\config\System::getConfig('ali_live');

        // 转码流在 StreamName 后拼接 _{templateId}
        $realStreamName = $streamName;
        if ($templateId !== '') {
            $realStreamName = $streamName . '_' . $templateId;
        }

        //未开启鉴权Key的情况下
        if ($config['play_key'] == '') {
            $rtmp_play_url = 'rtmp://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName;
            $artc_play_url = 'artc://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName;
            $flv_play_url = 'https://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '.flv';
            $hls_play_url = 'https://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '.m3u8';
        } else {
            $timeStamp = time() + self::$expireTime;


            $rtmp_sstring = '/' . $appName . '/' . $realStreamName . '-' . $timeStamp . '-0-0-' . $config['play_key'];
            $rtmp_md5hash = md5($rtmp_sstring);
            $rtmp_play_url = 'rtmp://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '?auth_key=' . $timeStamp . '-0-0-' . $rtmp_md5hash;

            $flv_sstring = '/' . $appName . '/' . $realStreamName . '.flv-' . $timeStamp . '-0-0-' . $config['play_key'];
            $flv_md5hash = md5($flv_sstring);
            $flv_play_url = 'https://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '.flv?auth_key=' . $timeStamp . '-0-0-' . $flv_md5hash;

            $hls_sstring = '/' . $appName . '/' . $realStreamName . '.m3u8-' . $timeStamp . '-0-0-' . $config['play_key'];
            $hls_md5hash = md5($hls_sstring);
            $hls_play_url = 'https://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '.m3u8?auth_key=' . $timeStamp . '-0-0-' . $hls_md5hash;

            $artc_sstring = '/' . $appName . '/' . $realStreamName . '-' . $timeStamp . '-0-0-' . $config['play_key'];
            $artc_md5hash = md5($artc_sstring);
            $artc_play_url = 'artc://' . $config['play_domain'] . '/' . $appName . '/' . $realStreamName . '?auth_key=' . $timeStamp . '-0-0-' . $artc_md5hash;
        }
        return [
            'rtmp'=>$rtmp_play_url,
            'artc'=>$artc_play_url,
            'flv'=>$flv_play_url,
            'hls'=>$hls_play_url
        ];

    }


    /**
     * 获取会调地址
     * @return string
     */
    public static function getCallbackUrl(){
        global $_W;
        return  $_W['siteroot'].'/index.php?i='.$_W['uniacid'].'&route=callback/live/playback';
    }
}