"""Tiny helper for deploying the app to a Hugging Face Space.

Usage (PowerShell, from the project root):

    # one-time
    pip install "huggingface_hub[cli]"
    huggingface-cli login

    # create the Space (do this once)
    huggingface-cli repo create us-flow-scanner --type space --space-sdk gradio

    # initialise git in this folder and push
    git init
    git checkout -b main
    git add .
    git commit -m "Initial deploy"
    git remote add space https://huggingface.co/spaces/<your-username>/us-flow-scanner
    git push --set-upstream space main

    # subsequent updates
    git add .
    git commit -m "..."
    git push space main
"""

from __future__ import annotations

import os
import subprocess
import sys


def _run(cmd: list[str]) -> None:
    print(f"\n$ {' '.join(cmd)}")
    subprocess.run(cmd, check=False)


def main() -> None:
    username = os.environ.get("HF_USERNAME")
    space = os.environ.get("HF_SPACE_NAME", "us-flow-scanner")
    if not username:
        print("Set HF_USERNAME env var (your HF handle).", file=sys.stderr)
        sys.exit(1)

    repo_id = f"{username}/{space}"
    _run(["huggingface-cli", "repo", "create", space, "--type", "space",
          "--space-sdk", "gradio", "--exist-ok"])

    if not os.path.isdir(".git"):
        _run(["git", "init"])
        _run(["git", "checkout", "-b", "main"])

    _run(["git", "add", "."])
    _run(["git", "commit", "-m", "Deploy to HF Space", "--allow-empty"])
    remote = f"https://huggingface.co/spaces/{repo_id}"
    _run(["git", "remote", "add", "space", remote])
    _run(["git", "push", "--set-upstream", "space", "main", "--force"])


if __name__ == "__main__":
    main()