#!/usr/bin/env python3
"""SQLite 코퍼스의 CPU 영속 후보 인덱스를 신규 구축하거나 증분 동기화한다."""

from __future__ import annotations

import argparse
import json
import sys
from pathlib import Path

if __package__ in (None, ""):
    sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

from app.engine.persistent_index import PersistentCorpusIndex


def main() -> int:
    p = argparse.ArgumentParser(description=__doc__)
    p.add_argument("--database", type=Path, required=True)
    p.add_argument("--index-dir", type=Path, required=True)
    p.add_argument("--features", type=int, default=2**20)
    args = p.parse_args()
    if not args.database.exists():
        p.error(f"database does not exist: {args.database}")
    result = PersistentCorpusIndex(args.database, args.index_dir).sync(args.features)
    print(json.dumps(result, ensure_ascii=False, indent=2))
    return 0


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