"""
联网搜索工具
"""

from langchain_core.tools import tool
from backend.app.logger import info


@tool
def web_search(query: str) -> str:
    """联网搜索获取最新信息"""
    info(f"[Tool] web_search: {query[:30]}...")
    try:
        from backend.app.core.web_search import web_search as search_fn
        return search_fn(query, max_results=5)
    except Exception as e:
        info(f"[Tool] web_search 失败: {e}")
        return f"联网搜索失败: {str(e)}"