func stream_yt_json(id)
{
    ret "{\"videoId\": \""+ id + "\",\"context\": {\"client\": {\"clientName\": \"ANDROID\",\"clientVersion\": \"17.10.35\",\"androidSdkVersion\": 30,\"hl\": \"en\",\"gl\": \"US\",\"utcOffsetMinutes\": 0}}}";
}

func tytd_streams_get(id)
{
    streams = create.dict();
    streams.success = false;
    
    str = stream_yt_json(id);
    curl = net.curl();
    curl.method = "POST";
    //curl.url = "http://127.0.0.1:9999/";
    curl.url = "https://www.youtube.com/youtubei/v1/player?key=AIzaSyA8eiZmM1FaDVjRy-df2KTyQ_vz_yYM39w";
    jsonStr="";
    curl.followlocation = true;
    headers = create.array();
    headers.add("Connection: close");
    headers.add("Content-Type: application/json");
    headers.add("User-Agent: com.google.android.youtube/17.10.35 (Linux; U; Android 12; GB) gzip");
    headers.add("Cookie: CONSENT=YES+cb; YSC=DwKYllHNwuw");
    curl.requestheaders = headers;
    curl.postfields = str;
    console.writeln(str);
    curl.writefunction = func(buffer,length) {
        for(i = 0;i<length;i++)
        {
            c=buffer[i].toChar();
            d=c;
            
            if(typeof(d) == "char")
            {
                jsonStr += d;
            }
        }
      
    }
  
      if(curl.perform() == 0)
      {
      
       
            streams.data = json.decode(jsonStr);
           
            streams.success =true;
      }
        ret streams;
}
func tytd_title(id)
{
   
    curl = net.curl();
    
    curl.url = "https://www.youtube.com/watch?v=" + id;
    htmlStr = "";
    curl.followlocation = true;
    
    curl.writefunction = func(buffer,length) {
        for(i = 0;i<length;i++)
        {
            byte=buffer[i];
            htmlStr += byte.toChar();
        }
      
    }   
    if(curl.perform() == 0)
    {
    
    a= htmlStr.split("<title>",false,2);
    a2 = a[1];
    a3 = a2.split("</title>",false,2);
    ret a3[0];
    }
    ret "Unknown";
}
func download_video(id)
{
    title = tytd_title(id);
    console.writeln("Downloading: " + title);
    strms=tytd_streams_get(id);
    if(strms.success && strms.data)
    {
        each(strms.data.streamingData.formats)
        {
            
            if(item.itag == 22)
            {
                fileName = title + "-" +  id +  ".mp4";
                curl = net.curl();
                curl.url = item.url;
                
                f = fs.create(fileName);
                curl.writefunction = f.write;
                curl.perform();
                f.close();
                 console.writeln("Downloaded: " + title);
   
            }
        }
    }
}
func main($$args)
{
    each(args)
    {
        download_video(item);
    }
}