"""CLI: python -m check_meta /path/to/folder"""

from __future__ import annotations

import argparse
import sys
from pathlib import Path

from check_meta import REQUIRED, check_meta


def main(argv: list[str] | None = None) -> int:
    parser = argparse.ArgumentParser(prog="python -m check_meta")
    parser.add_argument("folder", type=Path, help="folder that contains meta.json")
    args = parser.parse_args(argv)
    folder: Path = args.folder
    if not folder.is_dir():
        print(f"not a folder: {folder}", file=sys.stderr)
        return 2
    problems = check_meta(folder)
    if problems:
        print(f"{folder / 'meta.json'}:")
        for item in problems:
            print(f"  {item}")
        return 1
    print(f"{folder / 'meta.json'}: ok ({', '.join(REQUIRED)})")
    return 0


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