from pathlib import Path
import re
import pandas as pd

allowed_sources = {'DexYCB'}
drive_path = re.compile(r"^[A-Za-z]:\\")
for path in Path("metadata").glob('*manifest.parquet'):
    df = pd.read_parquet(path)
    if "source_dataset" not in df.columns:
        raise ValueError(f"{path} is missing source_dataset")
    bad = set(df["source_dataset"].dropna().unique()) - allowed_sources
    if bad:
        raise ValueError(f"{path} contains unexpected sources: {bad}")
    for col in df.columns:
        values = df[col].dropna().astype(str).head(1000)
        if any(drive_path.match(v) or v.startswith("/data/") for v in values):
            raise ValueError(f"{path} column {col} appears to contain local absolute paths")
print('All MANUS-DexYCB manifests contain only DexYCB portable metadata.')