"""Verify and register an unpacked offline bundle. Never downloads anything."""
from __future__ import annotations
import json
import sys
from pathlib import Path

from host.bundle import ROOT, executable, manifest
from host.common import EXTENSION_ID, HOST_NAME
from host.dependencies import status


def verify():
    if not manifest():
        raise ValueError("Autonomous bundle metadata is missing.")
    if Path(sys.executable).resolve() != Path(executable("python")):
        raise ValueError("The helper must use its embedded Python.")
    measured = status()
    if any(item["status"] != "installed" for item in measured):
        raise ValueError("Bundled components failed verification: " + json.dumps(measured))
    print(json.dumps({"ready": True, "dependencies": measured}))


def configure():
    verify()
    runtime = ROOT / ".runtime"
    runtime.mkdir(exist_ok=True)
    python = executable("python")
    launcher = runtime / "launch-host.cmd"
    launcher.write_bytes((f'@echo off\r\nchcp 65001 >nul\r\nset PYTHONIOENCODING=utf-8\r\nset PYTHONUTF8=1\r\n'
                          f'set PYTHONDONTWRITEBYTECODE=1\r\n"{python}" -I -X utf8 -B -u "{ROOT / "host" / "main.py"}" %*\r\n').encode("utf-8"))
    native = {"name": HOST_NAME, "description": "YouTubeDL autonomous helper", "path": str(launcher),
              "type": "stdio", "allowed_origins": [f"chrome-extension://{EXTENSION_ID}/"]}
    (runtime / "native-host.json").write_text(json.dumps(native, ensure_ascii=False, indent=2), encoding="utf-8")


if __name__ == "__main__":
    configure() if sys.argv[1:] == ["configure"] else verify()