"""Business Hub companion launch: health-check :3008, spawn detached if down,
open the browser. Best-effort — never blocks or fails the session.

owner: RStack developed by Richardson Gunde; Tau adapter contributed by Jeomon
"""
from __future__ import annotations

import json
import os

from .resolve import _resolve_bin_argv


def _launch_business_hub() -> None:
    """Bring the Business Hub live when a Tau session loads this extension.

    Same contract as the Pi and Operator adapters: health-check :3008, spawn
    detached if down, open the browser. Best-effort — never blocks or fails
    the session. Opt out with RSTACK_NO_BUSINESS_HUB=1.
    """
    if os.environ.get("RSTACK_NO_BUSINESS_HUB") == "1" or os.environ.get("CI"):
        return
    import subprocess
    import urllib.request
    import webbrowser

    port = int(os.environ.get("RSTACK_BUSINESS_PORT", "3008"))
    url = f"http://localhost:{port}"
    alive = False
    try:
        with urllib.request.urlopen(f"{url}/health", timeout=0.7) as response:
            alive = json.loads(response.read().decode("utf8")).get("ok") is True
    except Exception:
        alive = False

    try:
        if not alive:
            # G-09 (#552): local binary preferred over `npx --yes` — resolve.py.
            argv_prefix, _needs_network = _resolve_bin_argv("rstack-business", os.getcwd())
            if argv_prefix is None:
                return
            subprocess.Popen(
                [*argv_prefix, "--no-browser", "--project", os.getcwd()],
                stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
                start_new_session=True,
                env={**os.environ, "RSTACK_NO_BROWSER": "1", "RSTACK_BUSINESS_PORT": str(port)},
            )
        webbrowser.open(url)
    except Exception:
        pass  # the dashboard is a companion, never a blocker