tools/weather_info.py

from langchain_core.tools import tool
import requests
import logging
import os
from dotenv import load_dotenv

logger = logging.getLogger(__name__)
load_dotenv()

@tool
async def weather_info_tool(location: str) -> str:
    """Fetch real weather information for a given location."""
    try:
        api_key = os.getenv("OPENWEATHERMAP_API_KEY")
        if not api_key:
            logger.error("OPENWEATHERMAP_API_KEY not set")
            return "Weather unavailable: API key missing"

        url = f"http://api.openweathermap.org/data/2.5/weather?q={location}&appid={api_key}&units=metric"
        response = requests.get(url).json()
        if response.get("cod") == 200:
            condition = response["weather"][0]["description"]
            temp = response["main"]["temp"]
            return f"Weather in {location}: {condition}, {temp}°C"
        return f"Unable to fetch weather for {location}."
    except Exception as e:
        logger.error(f"Error fetching weather for {location}: {e}")
        return f"Error: {str(e)}"