"""Install private GitHub dependencies at runtime (HF build secrets are unreliable for pip git URLs)."""

from __future__ import annotations

import importlib.util
import os
import subprocess
import sys

GITHUB_REPO = "belcour/egsr2026_hypernetwork"
PACKAGE = "tsnc.hypernetwork"


def package_installed() -> bool:
    try:
        return importlib.util.find_spec(PACKAGE) is not None
    except ModuleNotFoundError:
        return False


def install_private_package() -> None:
    if package_installed():
        print(f"{PACKAGE} already installed.")
        return

    token = os.environ.get("GITHUB_TOKEN")
    if not token:
        raise RuntimeError(
            "GITHUB_TOKEN Space secret is required to install "
            f"{GITHUB_REPO}. Create a GitHub classic PAT with repo scope."
        )

    url = f"git+https://x-access-token:{token}@github.com/{GITHUB_REPO}.git"
    print(f"Installing {GITHUB_REPO} from private GitHub...")
    subprocess.check_call(
        [sys.executable, "-m", "pip", "install", "--no-cache-dir", url],
    )
    print(f"Installed {PACKAGE}.")


if __name__ == "__main__":
    install_private_package()