#!/usr/bin/env python3
"""Print a LiveKit Meet URL + token so a speaker can join and share a screen.

STUB / future: do not use until the production LiveKit server is online.
The third display currently shows a placeholder only.
"""
from __future__ import annotations

import argparse
import sys
from pathlib import Path
from urllib.parse import quote, urlparse

ROOT = Path(__file__).resolve().parents[1]
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))

from config import load_config
from tokens import make_speaker_token


def public_url(cfg) -> str:
    if cfg.livekit_public_url:
        return cfg.livekit_public_url.rstrip("/")
    parsed = urlparse(cfg.url)
    host = parsed.hostname or "127.0.0.1"
    if host in ("127.0.0.1", "localhost"):
        host = "10.200.0.20"
    scheme = parsed.scheme or "ws"
    port = parsed.port
    if port:
        return f"{scheme}://{host}:{port}"
    return f"{scheme}://{host}"


def main() -> int:
    ap = argparse.ArgumentParser(description=__doc__)
    ap.add_argument("--identity", default="", help="default: DISPLAY_SPEAKER_PARTICIPANT")
    ap.add_argument("--name", default="Speaker")
    args = ap.parse_args()
    cfg = load_config()
    identity = args.identity or cfg.display_speaker_participant or "speaker"
    token = make_speaker_token(cfg.api_key, cfg.api_secret, cfg.room, identity, args.name)
    url = public_url(cfg)
    meet = (
        "https://meet.livekit.io/custom"
        f"?liveKitUrl={quote(url, safe='')}&token={quote(token, safe='')}"
    )
    print(f"room:     {cfg.room}")
    print(f"identity: {identity}")
    print(f"url:      {url}")
    print(f"token:    {token}")
    print()
    print("Open this on the speaker laptop, then Share screen:")
    print(meet)
    return 0


if __name__ == "__main__":
    raise SystemExit(main())