#!/usr/bin/env python3
"""config.py の設定値を表示する互換ユーティリティ。"""

from __future__ import annotations

import argparse
import json

from common import CONFIG


def main() -> int:
    parser = argparse.ArgumentParser()
    parser.add_argument("--json", action="store_true")
    args = parser.parse_args()
    data = {
        "PDF_ROOT": str(CONFIG.path.pdf_root),
        "SCAN_DIRECTORIES": list(
            CONFIG.processing.scan_directories
        ),
        "REMOTE": CONFIG.remote.host,
        "REMOTE_DB": CONFIG.remote.database_dir,
        "REMOTE_PDF": CONFIG.remote.pdf_dir,
        "MAX_PAPERS": CONFIG.processing.max_papers,
        "AI_BACKEND": CONFIG.ai.backend,
    }
    if args.json:
        print(json.dumps(data, ensure_ascii=False, indent=2))
    else:
        for key, value in data.items():
            print(f"{key}={value}")
    return 0


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