import os
import sys
import argparse
import yt_dlp

def progress_hook(d):
    if d['status'] == 'downloading':
        percent = d.get('_percent_str', 'N/A')
        print(f"PROGRESS: {percent}", flush=True)

def main():
    parser = argparse.ArgumentParser(description="Media Downloader via yt-dlp")
    parser.add_argument("url", help="URL of the media to download")
    parser.add_argument("--start", help="Start time for crop (e.g. 00:01:00)", default=None)
    parser.add_argument("--end", help="End time for crop (e.g. 00:02:30)", default=None)
    args = parser.parse_args()

    ydl_opts = {
        'outtmpl': '/downloads/%(title)s.%(ext)s',
        'progress_hooks': [progress_hook],
        'quiet': True,
        'no_warnings': True,
    }

    if args.start and args.end:
        print(f"Applying crop from {args.start} to {args.end}")
        # Note: In a real environment, you might use format sorting and postprocessors like FFmpeg directly.
        # This is a sample placeholder for the structure.

    # Try downloading
    try:
        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            print("Download started...")
            ydl.download([args.url])
            print("Download finished.")
    except Exception as e:
        print(f"Error starting download: {e}", file=sys.stderr)

if __name__ == "__main__":
    main()