twitch-downloader.py

import subprocess
import json

def get_subprocess_output(cmd):
    process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
    process.wait()
    data, _ = process.communicate()
    if process.returncode != 0:
        return None
    return data.decode('utf-8')

with open('last_video.id', 'r') as f:
    last_video_id = f.readline().rstrip()
    if last_video_id:
        last_video_id = int(last_video_id)
    else:
        last_video_id = 0

result = get_subprocess_output("./twitch-dl videos --game \"Super Mario Maker 2\" nokduro --json")
if not result:
    exit()

twitch_info = json.loads(result.split('\n')[-2])
videos = sorted(twitch_info['videos'], key=lambda x: int(x['id']))
max_video_id = last_video_id
print(f"Found {twitch_info['count']} videos!")

for i, video in enumerate(videos):
    if int(video['id']) > last_video_id:
        print(f"Video {i + 1} ({video['title']}) has greater id than previous last downloaded video id. ({video['id']} > {last_video_id})")
        subprocess.call(["./twitch-dl", "download", video['id'], "--overwrite", "-q", "source", "-f", "mp4", "-o", "{channel}_{title_slug}_{date}_{time}.{format}"])
        # Update last downloaded video id
        with open('last_video.id', 'w') as f:
            f.write(video['id'])
    else:
        print(f"Video {i + 1} ({video['title']}) has lesser id than previous last downloaded video id. ({video['id']} <= {last_video_id})")