from langchain_core.tools import tool
from app.tools.java_client import JavaClient
import logging

logger = logging.getLogger(__name__)
_java = JavaClient()


@tool
async def search_product_by_keyword(keyword: str, limit: int = 5) -> str:
    """按关键词搜索上架商品, 返回 JSON 商品列表"""
    try:
        products = await _java.search_products(keyword, limit)
        if not products:
            return "[]"
        return str([{
            "id": p["id"],
            "name": p["name"],
            "price": p.get("price"),
            "description": p.get("intro") or p.get("description", ""),
        } for p in products])
    except Exception as e:
        logger.warning("搜索商品失败: %s", e)
        return "[]"


@tool
async def search_activity_by_keyword(keyword: str, limit: int = 5) -> str:
    """按关键词搜索进行中的活动, 返回 JSON 活动列表"""
    try:
        activities = await _java.search_activities(keyword, limit)
        if not activities:
            return "[]"
        return str([{
            "id": a["id"],
            "name": a["title"],
            "description": a.get("description", ""),
        } for a in activities])
    except Exception as e:
        logger.warning("搜索活动失败: %s", e)
        return "[]"


@tool
async def search_article_by_keyword(keyword: str, limit: int = 5) -> str:
    """按关键词搜索已发布文章, 返回 JSON 文章列表"""
    try:
        articles = await _java.search_articles(keyword, limit)
        if not articles:
            return "[]"
        return str([{
            "id": a["id"],
            "name": a["title"],
            "summary": a.get("summary", ""),
        } for a in articles])
    except Exception as e:
        logger.warning("搜索文章失败: %s", e)
        return "[]"