import os
from pathlib import Path
import unittest

from vwg_bench.validate import validate_dataset


def find_dataset_root() -> Path:
    if os.environ.get("VWG_DATASET_ROOT"):
        return Path(os.environ["VWG_DATASET_ROOT"])
    for parent in Path(__file__).resolve().parents:
        if (parent / "data" / "test" / "metadata.jsonl").exists():
            return parent
        sibling = parent / "huggingface" / "VWG-Bench"
        if (sibling / "data" / "test" / "metadata.jsonl").exists():
            return sibling
    raise FileNotFoundError(
        "Could not locate VWG-Bench. Set VWG_DATASET_ROOT or place the "
        "dataset at release/huggingface/VWG-Bench."
    )


DATASET_ROOT = find_dataset_root()


class DatasetReleaseTest(unittest.TestCase):
    def test_release_dataset_is_structurally_valid(self):
        report = validate_dataset(DATASET_ROOT, verify_hashes=True)
        self.assertTrue(report["ok"], report["errors"])
        self.assertEqual(report["num_rows"], 380)
        self.assertEqual(report["num_task_groups"], 38)
        self.assertEqual(report["num_dimensions"], 9)


if __name__ == "__main__":
    unittest.main()