#!/usr/bin/env python3
from __future__ import annotations

import argparse
import json
import zipfile
from pathlib import Path

import pyarrow.parquet as pq


def main() -> int:
    parser = argparse.ArgumentParser(description="Extract one OpenART tool from a local dataset clone.")
    parser.add_argument("--dataset-dir", required=True)
    parser.add_argument("--tool-id", required=True)
    parser.add_argument("--output-dir", required=True)
    args = parser.parse_args()
    dataset = Path(args.dataset_dir)
    rows = pq.read_table(dataset / "data" / "tools" / "metadata-00000.parquet").to_pylist()
    match = next((row for row in rows if row["tool_id"] == args.tool_id), None)
    if match is None:
        raise SystemExit(f"tool not found: {args.tool_id}")
    archive_path = dataset / match["bundle_path"]
    prefix = match["bundle_member_prefix"].rstrip("/") + "/"
    out = Path(args.output_dir)
    out.mkdir(parents=True, exist_ok=True)
    with zipfile.ZipFile(archive_path) as archive:
        for member in archive.namelist():
            if not member.startswith(prefix) or member.endswith("/"):
                continue
            target = out / member[len(prefix):]
            target.parent.mkdir(parents=True, exist_ok=True)
            target.write_bytes(archive.read(member))
    print(json.dumps({"output_dir": str(out), "tool_id": args.tool_id}, sort_keys=True))
    return 0


if __name__ == "__main__":
    raise SystemExit(main())