import argparse
import concurrent.futures
import datetime
import json
import sys
from pathlib import Path
from typing import Any, Dict, List, Optional, Tuple

import requests

# 支持直接以脚本方式运行：python scheduler/add_score_job.py
_PROJECT_ROOT = Path(__file__).resolve().parent.parent
if str(_PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(_PROJECT_ROOT))

from utils.scheduler_logger import get_scheduler_logger
from utils.sync_mysql_help import mysql


logger = get_scheduler_logger()

SCORE_API_URL = "http://47.236.83.130:8200/process_note"
DEFAULT_CUTOFF_DT = "20260429"
DEFAULT_TIMEOUT = 2400
DEFAULT_WORKERS = 3
DEFAULT_START_ID = 7150
FETCH_BATCH_SIZE = 20
EXISTING_SCORE_KEYS = {"分享意愿度", "消费意愿度", "点击意愿度"}


def _safe_json_loads(text: str) -> Optional[Dict[str, Any]]:
    if not text:
        return None
    try:
        payload = json.loads(text)
    except Exception:
        return None
    if not isinstance(payload, dict):
        return None
    return payload


def _extract_words_section(content: Dict[str, Any], key: str) -> List[Dict[str, Any]]:
    section = content.get(key)
    if not isinstance(section, list):
        return []
    result: List[Dict[str, Any]] = []
    for item in section:
        if not isinstance(item, dict):
            continue
        words = item.get("分词结果")
        if not isinstance(words, list):
            continue
        filtered_words: List[Dict[str, str]] = []
        for w in words:
            if not isinstance(w, dict):
                continue
            word = str(w.get("词") or "").strip()
            desc = str(w.get("详细描述") or "").strip()
            if not word:
                continue
            filtered_words.append({"词": word, "详细描述": desc})
        if filtered_words:
            result.append({"分词结果": filtered_words})
    return result


def _normalize_target_post(content: Dict[str, Any]) -> Dict[str, Any]:
    target_post = content.get("target_post")
    if not isinstance(target_post, dict):
        target_post = {}
    images = target_post.get("images")
    if not isinstance(images, list):
        images = []
    note_id = (
        str(target_post.get("note_id") or "").strip()
        or str(target_post.get("channel_content_id") or "").strip()
        or str(content.get("帖子ID") or "").strip()
    )
    return {
        "note_id": note_id,
        "images": [],
        "body_text": str(target_post.get("body_text") or "").strip(),
        "title": str(target_post.get("title") or "").strip(),
        "video": images[0] if images else "",
    }


def build_score_payload(content: Dict[str, Any]) -> Dict[str, Any]:
    return {
        "灵感点": _extract_words_section(content, "灵感点"),
        "目的点": _extract_words_section(content, "目的点"),
        "关键点": _extract_words_section(content, "关键点"),
        "target_post": _normalize_target_post(content),
    }


def _extract_contribution_results(resp_body: Dict[str, Any]) -> Optional[List[Dict[str, Any]]]:
    direct = resp_body.get("contribution_results")
    if isinstance(direct, list):
        return direct
    data = resp_body.get("data")
    if isinstance(data, dict):
        nested = data.get("contribution_results")
        if isinstance(nested, list):
            return nested
    return None


def request_score(payload: Dict[str, Any], timeout: int) -> List[Dict[str, Any]]:
    response = requests.post(SCORE_API_URL, json=payload, timeout=timeout)
    response.raise_for_status()
    body = response.json()
    if not isinstance(body, dict):
        raise ValueError("score_api_response_not_dict")
    contribution_results = _extract_contribution_results(body)
    if contribution_results is None:
        raise ValueError(f"missing_contribution_results: {body}")
    return contribution_results


def _has_existing_scores(content: Dict[str, Any]) -> bool:
    contribution_results = content.get("contribution_results")
    if not isinstance(contribution_results, list):
        return False
    for item in contribution_results:
        if not isinstance(item, dict):
            continue
        if any(key in item for key in EXISTING_SCORE_KEYS):
            return True
    return False


def _fetch_rows(
    cutoff_dt: str, worker_idx: int, workers: int, last_id: int, limit: int
) -> Tuple[Dict[str, Any], ...]:
    sql = """
        SELECT id, dt, vid, data_content
        FROM aigc_topic_decode_task_result
        WHERE dt < %s
          AND id > %s
          AND MOD(id, %s) = %s
          AND id IS NOT NULL
          AND data_content IS NOT NULL
          AND data_content != ''
        ORDER BY id
        LIMIT %s
    """
    return mysql.fetchall(sql, (cutoff_dt, last_id, workers, worker_idx, limit))


def _update_data_content(row_id: int, new_data_content: str) -> None:
    sql = """
        UPDATE aigc_topic_decode_task_result
        SET data_content = %s, update_time = %s
        WHERE id = %s
    """
    mysql.execute(sql, (new_data_content, datetime.datetime.now(), row_id))


def _process_worker_rows(
    cutoff_dt: str,
    timeout: int,
    dry_run: bool,
    worker_idx: int,
    workers: int,
    start_id: int,
) -> Dict[str, int]:
    total = 0
    updated = 0
    skipped = 0
    failed = 0
    last_id = start_id

    while True:
        rows = _fetch_rows(
            cutoff_dt=cutoff_dt,
            worker_idx=worker_idx,
            workers=workers,
            last_id=last_id,
            limit=FETCH_BATCH_SIZE,
        )
        if not rows:
            break
        last_id = int(rows[-1]["id"])
        logger.info(
            "add_score worker={} 读取批次 count={} last_id={}", worker_idx, len(rows), last_id
        )

        for row in rows:
            total += 1
            row_id_raw = row.get("id")
            try:
                row_id = int(row_id_raw)
            except (TypeError, ValueError):
                skipped += 1
                logger.warning(
                    "add_score worker={} 缺少合法id，跳过 total={} id={}",
                    worker_idx,
                    total,
                    row_id_raw,
                )
                continue
            dt = str(row.get("dt") or "").strip()
            vid = str(row.get("vid") or "").strip()
            raw_content = row.get("data_content")
            if not dt or not vid or not isinstance(raw_content, str) or not raw_content.strip():
                skipped += 1
                logger.warning(
                    "add_score worker={} 跳过非法行 total={} id={} dt={} vid={}",
                    worker_idx,
                    total,
                    row_id,
                    dt,
                    vid,
                )
                continue
            logger.info(
                "add_score worker={} 处理记录 id={} dt={} vid={}", worker_idx, row_id, dt, vid
            )

            content = _safe_json_loads(raw_content)
            if content is None:
                skipped += 1
                logger.warning(
                    "add_score worker={} data_content非合法JSON，跳过 id={} dt={} vid={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                )
                continue
            if _has_existing_scores(content):
                skipped += 1
                logger.info(
                    "add_score worker={} 跳过记录，已存在目标打分字段 id={} dt={} vid={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                )
                continue

            try:
                score_payload = build_score_payload(content)
                contribution_results = request_score(score_payload, timeout=timeout)
            except Exception as exc:
                failed += 1
                logger.exception(
                    "add_score worker={} 打分接口调用失败 id={} dt={} vid={} err={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                    exc,
                )
                continue

            content["contribution_results"] = contribution_results
            new_data_content = json.dumps(content, ensure_ascii=False)
            if dry_run:
                updated += 1
                logger.info(
                    "add_score worker={} dry-run: 已生成新contribution_results id={} dt={} vid={} count={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                    len(contribution_results),
                )
                continue

            try:
                _update_data_content(row_id, new_data_content)
                updated += 1
                logger.info(
                    "add_score worker={} 更新成功 id={} dt={} vid={} contribution_count={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                    len(contribution_results),
                )
            except Exception as exc:
                failed += 1
                logger.exception(
                    "add_score worker={} 数据库回写失败 id={} dt={} vid={} err={}",
                    worker_idx,
                    row_id,
                    dt,
                    vid,
                    exc,
                )

    logger.info(
        "add_score worker={} 任务结束 cutoff_dt={} total={} updated={} skipped={} failed={} dry_run={}",
        worker_idx,
        cutoff_dt,
        total,
        updated,
        skipped,
        failed,
        dry_run,
    )
    return {"total": total, "updated": updated, "skipped": skipped, "failed": failed}


def run_add_score_job(
    *, cutoff_dt: str, timeout: int, dry_run: bool, workers: int, start_id: int
) -> None:
    total = 0
    updated = 0
    skipped = 0
    failed = 0

    with concurrent.futures.ThreadPoolExecutor(max_workers=workers) as executor:
        futures = [
            executor.submit(
                _process_worker_rows,
                cutoff_dt,
                timeout,
                dry_run,
                worker_idx,
                workers,
                start_id,
            )
            for worker_idx in range(workers)
        ]
        for future in concurrent.futures.as_completed(futures):
            worker_result = future.result()
            total += worker_result["total"]
            updated += worker_result["updated"]
            skipped += worker_result["skipped"]
            failed += worker_result["failed"]

    logger.info(
        "add_score 并行任务结束 cutoff_dt={} workers={} total={} updated={} skipped={} failed={} dry_run={}",
        cutoff_dt,
        workers,
        total,
        updated,
        skipped,
        failed,
        dry_run,
    )


def _parse_args() -> argparse.Namespace:
    parser = argparse.ArgumentParser(
        description="为 aigc_topic_decode_task_result 历史记录补充 contribution_results 分数"
    )
    parser.add_argument("--cutoff-dt", default=DEFAULT_CUTOFF_DT, help="仅处理 dt < cutoff_dt 的数据")
    parser.add_argument("--timeout", type=int, default=DEFAULT_TIMEOUT, help="打分接口超时（秒）")
    parser.add_argument("--dry-run", action="store_true", help="只调用接口并打印日志，不写回数据库")
    parser.add_argument("--workers", type=int, default=DEFAULT_WORKERS, help="并发worker数量")
    parser.add_argument("--start-id", type=int, default=DEFAULT_START_ID, help="仅处理 id > start_id 的数据")
    return parser.parse_args()


def main() -> None:
    args = _parse_args()
    logger.info(
        "add_score 任务启动 cutoff_dt={} timeout={} dry_run={} workers={} start_id={}",
        args.cutoff_dt,
        args.timeout,
        args.dry_run,
        args.workers,
        args.start_id,
    )
    run_add_score_job(
        cutoff_dt=str(args.cutoff_dt),
        timeout=max(1, int(args.timeout)),
        dry_run=bool(args.dry_run),
        workers=max(1, int(args.workers)),
        start_id=max(0, int(args.start_id)),
    )


if __name__ == "__main__":
    main()