"""Push the ForgeEnv environment Space and the demo Space to the Hub.

Usage (from repo root, with ``HF_TOKEN`` set or after ``huggingface-cli
login``)::

    python scripts/deploy_spaces.py \
        --user akhiilll \
        --env-space-name forgeenv \
        --demo-space-name forgeenv-demo

The script is idempotent: if the Spaces already exist it just uploads the
folders. It does NOT push the trained model weights — that happens from
the Colab notebook after GRPO finishes.
"""
from __future__ import annotations

import argparse
import os
import sys
from pathlib import Path


def _require_token() -> str:
    token = os.environ.get("HF_TOKEN") or os.environ.get("HUGGINGFACE_TOKEN")
    if not token:
        sys.exit(
            "[deploy] No HF token in env. Set HF_TOKEN or run "
            "`huggingface-cli login` first."
        )
    return token


def _ensure_space(api, repo_id: str, sdk: str, token: str) -> None:
    from huggingface_hub.utils import HfHubHTTPError

    try:
        api.repo_info(repo_id=repo_id, repo_type="space", token=token)
        print(f"[deploy] Space exists: {repo_id}")
    except HfHubHTTPError:
        print(f"[deploy] Creating Space: {repo_id} (sdk={sdk})")
        api.create_repo(
            repo_id=repo_id,
            repo_type="space",
            space_sdk=sdk,
            token=token,
            exist_ok=True,
        )


def _upload(api, repo_id: str, folder: Path, token: str) -> None:
    print(f"[deploy] Uploading {folder} -> {repo_id}")
    api.upload_folder(
        folder_path=str(folder),
        repo_id=repo_id,
        repo_type="space",
        token=token,
        commit_message="ForgeEnv deploy",
        ignore_patterns=[
            "__pycache__",
            "*.pyc",
            ".pytest_cache",
            "*.egg-info",
            ".venv",
            "node_modules",
        ],
    )


def main() -> None:
    parser = argparse.ArgumentParser(description="Deploy ForgeEnv Spaces")
    parser.add_argument("--user", required=True, help="HF username / org")
    parser.add_argument("--env-space-name", default="forgeenv")
    parser.add_argument("--demo-space-name", default="forgeenv-demo")
    parser.add_argument(
        "--env-folder",
        default="forgeenv-space",
        help="Local path to the environment Space folder",
    )
    parser.add_argument(
        "--demo-folder",
        default="demo-space",
        help="Local path to the Gradio demo Space folder",
    )
    parser.add_argument(
        "--skip-demo",
        action="store_true",
        help="Only deploy the environment Space",
    )
    args = parser.parse_args()

    token = _require_token()
    from huggingface_hub import HfApi

    api = HfApi()

    repo_root = Path(__file__).resolve().parents[1]
    env_folder = (repo_root / args.env_folder).resolve()
    demo_folder = (repo_root / args.demo_folder).resolve()

    if not env_folder.is_dir():
        sys.exit(f"[deploy] env folder not found: {env_folder}")

    env_repo = f"{args.user}/{args.env_space_name}"
    _ensure_space(api, env_repo, sdk="docker", token=token)
    _upload(api, env_repo, env_folder, token)
    print(f"[deploy] Environment live: https://huggingface.co/spaces/{env_repo}")

    if args.skip_demo:
        return
    if not demo_folder.is_dir():
        print(f"[deploy] demo folder missing ({demo_folder}); skipping demo")
        return

    demo_repo = f"{args.user}/{args.demo_space_name}"
    _ensure_space(api, demo_repo, sdk="gradio", token=token)
    _upload(api, demo_repo, demo_folder, token)
    print(f"[deploy] Demo live: https://huggingface.co/spaces/{demo_repo}")


if __name__ == "__main__":
    main()