import argparse
import json
from pathlib import Path
from typing import Any, Dict, List

from openai import OpenAI


PROMPT_PATH = Path("/home/mshahidul/readctrl/prompts/support_check_data_generate")
API_FILE = Path("/home/mshahidul/api_new.json")
INPUT_PATH = Path(
    "/home/mshahidul/readctrl/code/text_classifier/data/verified_combined_0-80_clean200.json"
)
OUTPUT_DIR = Path("/home/mshahidul/readctrl/data/extracting_subclaim")
DEFAULT_OUTPUT_FILE = "synthetic_subclaims_first200.json"


def load_openai_client() -> OpenAI:
    with API_FILE.open("r", encoding="utf-8") as f:
        api_keys = json.load(f)
    openai_api_key = api_keys["openai"]
    return OpenAI(api_key=openai_api_key)


def normalize_difficulty(label: str) -> str:
    mapping = {
        "low_health_literacy": "easy",
        "intermediate_health_literacy": "intermediate",
        "proficient_health_literacy": "hard",
    }
    return mapping.get(label, "intermediate")


def clean_json_response(raw: str) -> Dict[str, Any]:
    cleaned = raw.strip().replace("```json", "").replace("```", "").strip()
    return json.loads(cleaned)


def make_prompt(template: str, item: Dict[str, Any]) -> str:
    payload = {
        "passage_id": f"{item.get('doc_id', 'unknown')}_{item.get('label', 'unknown')}",
        "passage": item.get("diff_label_texts", ""),
        "difficulty_label": normalize_difficulty(item.get("label", "")),
    }
    return (
        f"{template}\n\n"
        "Now generate output for this input:\n"
        f"{json.dumps(payload, ensure_ascii=False, indent=2)}\n"
    )


def load_input_data(limit: int) -> List[Dict[str, Any]]:
    with INPUT_PATH.open("r", encoding="utf-8") as f:
        data = json.load(f)
    return data[:limit]


def load_existing(path: Path) -> List[Dict[str, Any]]:
    if not path.exists():
        return []
    with path.open("r", encoding="utf-8") as f:
        return json.load(f)


def save_json(path: Path, data: List[Dict[str, Any]]) -> None:
    with path.open("w", encoding="utf-8") as f:
        json.dump(data, f, ensure_ascii=False, indent=2)


def main() -> None:
    parser = argparse.ArgumentParser(
        description="Generate synthetic claim-verification subclaim dataset from diff_label_texts."
    )
    parser.add_argument("--limit", type=int, default=200, help="Number of input items to process.")
    parser.add_argument("--model", type=str, default="gpt-5", help="OpenAI model name.")
    parser.add_argument(
        "--output-file",
        type=str,
        default=DEFAULT_OUTPUT_FILE,
        help="Output filename inside output directory.",
    )
    parser.add_argument(
        "--save-every",
        type=int,
        default=2,
        help="Persist results after every N processed items.",
    )
    args = parser.parse_args()

    with PROMPT_PATH.open("r", encoding="utf-8") as f:
        prompt_template = f.read().strip()

    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
    output_path = OUTPUT_DIR / args.output_file

    data = load_input_data(limit=args.limit)
    results = load_existing(output_path)
    done_keys = {item.get("source_key") for item in results}

    client = load_openai_client()

    for idx, item in enumerate(data):
        source_key = f"{item.get('doc_id')}_{item.get('label')}_{idx}"
        if source_key in done_keys:
            continue

        prompt = make_prompt(prompt_template, item)
        try:
            response = client.chat.completions.create(
                model=args.model,
                messages=[
                    {"role": "system", "content": "You are a helpful assistant."},
                    {"role": "user", "content": prompt},
                ],
            )
            content = response.choices[0].message.content or ""
            generated = clean_json_response(content)
        except Exception as e:  # noqa: BLE001
            generated = {"error": str(e), "raw_response": response.choices[0].message.content if "response" in locals() else ""}

        results.append(
            {
                "source_key": source_key,
                "doc_id": item.get("doc_id"),
                "source_label": item.get("label"),
                "difficulty_label": normalize_difficulty(item.get("label", "")),
                "generated": generated,
            }
        )
        done_keys.add(source_key)

        if len(results) % args.save_every == 0:
            save_json(output_path, results)
            print(f"Saved {len(results)} rows to {output_path}")

    save_json(output_path, results)
    print(f"Done. Saved {len(results)} rows to {output_path}")


if __name__ == "__main__":
    main()