from __future__ import annotations

import argparse
import json
from pathlib import Path

from common import read_json, search_lexical_index
from rag_profiles import resolve_rag_profile

ROOT = Path(__file__).resolve().parents[1]
DEFAULT_INDEX = ROOT / "plugins" / "1c" / "datasets" / "prepared" / "rag_index.json"


def print_result(result: dict, index: int) -> None:
    document = result["document"]
    content = (document.get("content") or "").strip().replace("\n", " ")
    if len(content) > 500:
        content = content[:497].rstrip() + "..."

    print(f"{index}. score={result['score']:.4f}")
    print(f"   source={document.get('source_path')} chunk={document.get('chunk_index')}")
    print(f"   title={document.get('title')}")
    if (document.get("metadata") or {}).get("heading"):
        print(f"   heading={(document.get('metadata') or {}).get('heading')}")
    print(f"   content={content}")


def main() -> int:
    parser = argparse.ArgumentParser(description="Search the local 1C RAG lexical index.")
    parser.add_argument("query")
    parser.add_argument("--index", type=Path, default=DEFAULT_INDEX)
    parser.add_argument("--profile", default="auto")
    parser.add_argument("--limit", type=int)
    parser.add_argument("--candidate-limit", type=int)
    parser.add_argument("--dedupe-by-document", action="store_true")
    parser.add_argument("--min-score", type=float)
    parser.add_argument("--source-type", action="append", dest="source_types")
    parser.add_argument("--json", action="store_true")
    args = parser.parse_args()

    index = read_json(args.index)
    profile = resolve_rag_profile(args.profile, args.query)
    source_types = args.source_types if args.source_types is not None else profile["source_types"]
    results = search_lexical_index(
        index,
        query=args.query,
        limit=args.limit or int(profile["limit"]),
        candidate_limit=args.candidate_limit or int(profile["candidate_limit"]),
        dedupe_by_document=args.dedupe_by_document or bool(profile["dedupe_by_document"]),
        min_score=float(args.min_score if args.min_score is not None else profile["min_score"]),
        source_types=source_types,
    )

    if args.json:
        print(json.dumps(results, ensure_ascii=False, indent=2))
    elif results:
        for position, result in enumerate(results, start=1):
            print_result(result, position)
    else:
        print("No matches.")
    return 0


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