"""Preview or explicitly upload this verified dataset package to Hugging Face."""
import argparse
from hashlib import sha256
import json
from pathlib import Path


def main():
    p = argparse.ArgumentParser(description=__doc__)
    p.add_argument("--repo-id", required=True, help="OWNER/DATASET")
    p.add_argument("--upload", action="store_true", help="Actually create/update the dataset repository")
    p.add_argument("--public", action="store_true", help="Create a public repository (default: private)")
    a = p.parse_args()
    root = Path(__file__).resolve().parent
    validation = json.loads((root / "validation.json").read_text())
    if validation.get("result") != "passed":
        raise SystemExit("Dataset validation has not passed.")
    checked = set()
    for line in (root / "checksums.sha256").read_text().splitlines():
        expected, name = line.split("  ", 1)
        file = (root / name).resolve()
        if not file.is_relative_to(root) or sha256(file.read_bytes()).hexdigest() != expected:
            raise SystemExit(f"Checksum mismatch: {name}")
        checked.add(name)
    files = sorted(checked | {"checksums.sha256"})
    print(f"Verified {len(checked)} files; destination: {a.repo_id}; repo type: dataset")
    if not a.upload:
        print("Preview only. Add --upload to send this package. No network request was made.")
        return
    from huggingface_hub import HfApi
    api = HfApi()
    api.create_repo(repo_id=a.repo_id, repo_type="dataset", private=not a.public, exist_ok=True)
    result = api.upload_folder(repo_id=a.repo_id, repo_type="dataset", folder_path=str(root),
                               allow_patterns=files, commit_message="Upload validated Frontier Science research snapshot")
    print(result.repo_url)


if __name__ == "__main__":
    main()