"""PII置換フィルタの実行入口と既定コンフィグ。"""

from __future__ import annotations

import argparse
import json
from pathlib import Path

from filter_pii import run_filter


PROJECT_ROOT = Path(__file__).resolve().parents[1]
DEFAULT_CONFIG = {
    "input": PROJECT_ROOT / "data" / "raw" / "common_crawl_0_filtered_0001.parquet",
    "output_root": PROJECT_ROOT / "data" / "check_ver2" / "pii_0001_replaced_final",
    "batch_size": 2048,
}


def main(argv: list[str] | None = None) -> None:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--input", type=Path, default=DEFAULT_CONFIG["input"])
    parser.add_argument("--output-root", type=Path, default=DEFAULT_CONFIG["output_root"])
    parser.add_argument("--batch-size", type=int, default=DEFAULT_CONFIG["batch_size"])
    parser.add_argument("--start-row", type=int, default=0)
    parser.add_argument("--max-rows", type=int, default=None)
    parser.add_argument("--policy-approver", default=None, help="処理方針（置換）の承認者名。summary.json の pii_policy に記録される。")
    parser.add_argument("--policy-approved-on", default=None, help="承認日（YYYY-MM-DD）。")
    parser.add_argument("--policy-note", default=None, help="方針の補足（任意）。")
    args = parser.parse_args(argv)
    if not args.input.exists():
        raise FileNotFoundError(args.input)
    summary = run_filter(
        input_path=args.input,
        output_root=args.output_root,
        batch_size=args.batch_size,
        start_row=args.start_row,
        max_rows=args.max_rows,
        policy_approver=args.policy_approver,
        policy_approved_on=args.policy_approved_on,
        policy_note=args.policy_note,
    )
    print(json.dumps({
        "row_range": summary["row_range"],
        "total_records_scanned": summary["total_records_scanned"],
        "records_with_replacement": summary["records_with_replacement"],
        "records_changed": summary["records_changed"],
        "records_unchanged": summary["records_unchanged"],
        "total_replacements": summary["total_replacements"],
        "by_type": {k: v["replacement_count"] for k, v in summary["by_type"].items()},
        "pii_policy_status": summary["pii_policy"]["status"],
    }, ensure_ascii=False))


if __name__ == "__main__":
    main()