"""Storage utilities for loading/saving match results from HuggingFace Hub."""
from __future__ import annotations

import json
import os

from huggingface_hub import HfApi, hf_hub_download

STORAGE_REPO = "Koddenbrock/WorldcupPredictionGame-storage"


def load_results() -> list[dict]:
    """Load actual match results from HF storage repo. Returns [] if not available."""
    try:
        path = hf_hub_download(
            repo_id=STORAGE_REPO,
            filename="results/match_results.json",
            repo_type="dataset",
        )
        with open(path) as f:
            return json.load(f)
    except Exception:
        return []


def save_results(results: list[dict]) -> None:
    """Upload results to HF storage repo (requires HF_TOKEN env var)."""
    api = HfApi()
    api.upload_file(
        path_or_fileobj=json.dumps(results, indent=2).encode(),
        path_in_repo="results/match_results.json",
        repo_id=STORAGE_REPO,
        repo_type="dataset",
        token=os.environ.get("HF_TOKEN"),
    )