from typing import Dict, Any, List
from langchain_core.tools import BaseTool
import requests


class WebSearchTool(BaseTool):
    """A tool for searching the web (placeholder implementation)"""
    
    name: str = "web_search"
    description: str = "Search the web for information. Input should be a search query."
    
    def _run(self, query: str) -> str:
        """Search the web for information"""
        # This is a placeholder implementation
        # In a real implementation, you would integrate with a search API
        # like Serper, Tavily, or Google Search API
        
        return f"Web search functionality for query: '{query}' is not implemented. This is a placeholder. To implement real web search, you would need to:
        1. Sign up for a search API service (e.g., Serper, Tavily)
        2. Add your API key to the .env file
        3. Implement the actual search logic here"
    
    async def _arun(self, query: str) -> str:
        """Async version of the tool"""
        return self._run(query)