from __future__ import annotations

import argparse
import json
from pathlib import Path
import sys

PROJECT_ROOT = Path(__file__).resolve().parents[1]
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))

from canonical_layer.refresh import REFRESH_MODES, RefreshService
from config.settings import LOGS_DIR


def parse_args() -> argparse.Namespace:
    parser = argparse.ArgumentParser(
        description="Run canonical refresh into local/remote canonical store",
    )
    parser.add_argument(
        "--mode",
        choices=sorted(REFRESH_MODES),
        default="incremental",
        help="Refresh mode: historical, incremental, targeted",
    )
    parser.add_argument("--from-date", dest="date_from", default=None, help="ISO date lower bound")
    parser.add_argument("--to-date", dest="date_to", default=None, help="ISO date upper bound")
    parser.add_argument("--target-id", default=None, help="Entity/document id fragment for targeted mode")
    parser.add_argument(
        "--limit-per-set",
        type=int,
        default=None,
        help="How many source rows to read per entity set",
    )
    parser.add_argument(
        "--entity-set",
        action="append",
        dest="entity_sets",
        default=None,
        help="Specific entity set to include (repeat flag for multiple values)",
    )
    parser.add_argument(
        "--keyword",
        action="append",
        dest="keywords",
        default=None,
        help="Entity-set matcher keyword (repeat flag for multiple values)",
    )
    parser.add_argument(
        "--output",
        default=str(LOGS_DIR / "refresh_last_run.json"),
        help="Where to write run summary json",
    )
    parser.add_argument(
        "--strict",
        action="store_true",
        help="Exit with code 1 when run status is failed or partial_success",
    )
    return parser.parse_args()


def main() -> int:
    args = parse_args()
    service = RefreshService.build()
    result = service.run_refresh(
        mode=args.mode,
        date_from=args.date_from,
        date_to=args.date_to,
        target_id=args.target_id,
        limit_per_set=args.limit_per_set,
        requested_entity_sets=args.entity_sets,
        entity_keywords=args.keywords,
    )

    payload = result.to_dict()
    payload["store_stats"] = service.store_stats()

    output_path = Path(args.output)
    output_path.parent.mkdir(parents=True, exist_ok=True)
    output_path.write_text(json.dumps(payload, ensure_ascii=False, indent=2), encoding="utf-8")
    print(json.dumps(payload, ensure_ascii=False, indent=2))

    if args.strict and result.status != "success":
        return 1
    return 0


if __name__ == "__main__":
    sys.exit(main())