from __future__ import annotations

import os
from pathlib import Path

from huggingface_hub import hf_hub_download
from huggingface_hub.errors import EntryNotFoundError


def main() -> None:
    repo_id = os.environ.get("MODEL_REPO_ID", "theelvace/weather-data-fetcher-models")
    files_env = os.environ.get(
        "MODEL_FILES",
        "rain_xgb_tuned.joblib rain_xgb_tuned_meta.json",
    )
    target_dir = Path(os.environ.get("MODEL_DIR", "models"))

    target_dir.mkdir(parents=True, exist_ok=True)

    filenames = [name.strip() for name in files_env.split() if name.strip()]
    if not filenames:
        print("MODEL_FILES is empty; nothing to download.")
        return

    for filename in filenames:
        print(f"Downloading {filename} from {repo_id} ...")
        try:
            local_path = hf_hub_download(
                repo_id=repo_id,
                filename=filename,
                local_dir=target_dir,
                local_dir_use_symlinks=False,
            )
        except EntryNotFoundError:
            print(f" • Skipping {filename}: not found in {repo_id}.")
            continue
        print(f"Saved to {local_path}")


if __name__ == "__main__":
    main()