"""Check both dataset-card configurations through Hugging Face's actual local loader."""

from __future__ import annotations

import argparse
from pathlib import Path

from datasets import get_dataset_config_names, load_dataset


def main() -> None:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--root", type=Path, default=Path(__file__).resolve().parents[1])
    args = parser.parse_args()
    root = str(args.root.resolve())
    expected = {
        "metadata": {"train": 98040, "test": 13960},
        "windows": {"train": 3290, "test": 475},
    }
    if set(get_dataset_config_names(root)) != set(expected):
        raise ValueError("Unexpected dataset configurations")
    for config, sizes in expected.items():
        dataset = load_dataset(root, config)
        actual = {split: len(rows) for split, rows in dataset.items()}
        if actual != sizes:
            raise ValueError(f"{config}: expected {sizes}, got {actual}")
        train = dataset["train"]
        val_mask = [sequence == "07" for sequence in train["sequence"]]
        validation_rows = sum(val_mask)
        expected_val = 5505 if config == "metadata" else 185
        if validation_rows != expected_val:
            raise ValueError(f"{config}: invalid validation holdout")
        print(f"{config}: {actual}, sequence-07 validation rows: {validation_rows}")


if __name__ == "__main__":
    main()