"""
在需求池中按同名/包含关系搜索需求词，用于合并同语义、措辞不同的需求一起判断。
"""
from __future__ import annotations

import logging

from sqlalchemy.orm import Session

from agents.demand_grade_agent.tools.demand_priority import (
    build_demand_priority_index,
    format_demand_priority,
)
from agents.demand_grade_agent.tools.shared import (
    format_posterior_value,
    format_score,
    normalize_biz_dt,
    normalize_str_list,
)
from supply_agent.tools import tool
from supply_infra.db.repositories.multi_demand_pool_di_repo import MultiDemandPoolDiRepository
from supply_infra.db.session import get_session

logger = logging.getLogger(__name__)


def _search_one_related_pool_demands(
    session: Session,
    normalized: str,
    keyword: str,
    priority_index: dict[str, dict],
) -> str:
    rows = MultiDemandPoolDiRepository(session).search_rows_by_name_fragment(normalized, keyword)

    if not rows:
        return f"biz_dt={normalized} 未找到与「{keyword}」同名/包含关系的需求词"

    lines = []
    for demand_name in dict.fromkeys(str(row["demand_name"]) for row in rows):
        lines.append(f"需求自身证据「{demand_name}」:")
        lines.extend(format_demand_priority(priority_index.get(demand_name)))
    for row in rows:
        rov = format_posterior_value(row["real_rov_7d"])
        vov = format_posterior_value(row["real_vov_7d"])
        weight = format_score(row["weight"])
        video_count = row["video_count"] if row["video_count"] is not None else "—"
        lines.append(
            f"[id={row['id']}|{row['strategy']}|weight={weight}"
            f"|视频数={video_count}|rov_diff={rov}|vov_diff={vov}] {row['demand_name']}"
        )
    return "\n".join(lines)


@tool
def search_related_pool_demands(biz_dt: str, keywords: list[str]) -> str:
    """
    按同名/包含关系搜索需求池，合并同语义需求的多条记录一起判断。

    支持批量传入多个 keyword，同一 biz_dt 下一次调用返回各关键词的匹配结果；
    每段结果前会标注原始 keyword。

    匹配规则为双向包含：keyword 是 demand_name 的子串，或 demand_name 是 keyword 的子串。
    用于发现措辞不同但语义相同/高度相关的需求词（例如「减脂期加餐」与「减脂加餐」），
    在判级时应把这些记录一起纳入参考，而不是只看单条记录。

    Args:
        biz_dt: 业务日期，格式 YYYYMMDD（必填）。
        keywords: 需求词或关键片段列表，可一次传多个。

    Returns:
        每个 keyword 一段，段首标注 `--- keyword: xxx ---`，例如：
        --- keyword: 加餐 ---
        [id=101|strategy_a|weight=3.20|视频数=12|rov_diff=0.0500 [效果非常好]|vov_diff=-0.0800 [可接受]] 减脂期加餐怎么吃
    """
    normalized, err = normalize_biz_dt(biz_dt)
    if err:
        return err
    if not normalized:
        return "biz_dt 不能为空"

    keyword_list, err = normalize_str_list(keywords, "keywords")
    if err:
        return err

    try:
        with get_session() as session:
            pool_repo = MultiDemandPoolDiRepository(session)
            priority_index = build_demand_priority_index(pool_repo.list_by_biz_dt(normalized))
            sections: list[str] = []
            for keyword in keyword_list:
                result = _search_one_related_pool_demands(
                    session,
                    normalized,
                    keyword,
                    priority_index,
                )
                sections.append(f"--- keyword: {keyword} ---\n{result}")

        message = "\n\n".join(sections)
        logger.info(
            "search_related_pool_demands completed: biz_dt=%s count=%d",
            normalized,
            len(keyword_list),
        )
        return message

    except Exception as e:
        logger.error("search_related_pool_demands failed: %s", e, exc_info=True)
        return f"搜索关联需求词失败: {e}"


def main() -> None:
    print(search_related_pool_demands(biz_dt="20260714", keywords=["加餐", "减脂"]))


if __name__ == "__main__":
    main()