twitcast auto recording

# -*- coding: utf-8 -*-
import argparse
import os
import requests
import time
from datetime import datetime

def _get_stream_info(user):
    url = f'https://twitcasting.tv/streamserver.php?target={user}&mode=client'
    r = requests.get(url, headers={ 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0' })
    data = r.json()
    return data


def check_live_status(user):
    data = _get_stream_info(user)
    return data['movie']['live']


if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='TwitCasting live stream monitor.')
    parser.add_argument('user_id', help='The user id to record. i.e. the string after "https://twitcasting.tv/" in URL')
    args = parser.parse_args()

    while True:
        live_status = check_live_status(args.user_id)
        if live_status == False:
            print(f'User {args.user_id} is offline, retrying every 15 seconds...')
        while live_status == False:
            time.sleep(15)
            live_status = check_live_status(args.user_id)

        t = datetime.now().strftime('%Y%m%d%H%M%S')
        os.system(f'yt-dlp http://twitcasting.tv/{args.user_id} --no-part -o "%(uploader_id)s/[%(id)s] %(title)s-{t}.ts"')