app.py

from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
import os
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI

# Weather tool that securely handles the API key
@tool
def get_weather(city: str) -> str:
    """A tool that fetches current weather data for a specified city.
    
    Args:
        city: The name of the city to get weather for (e.g., 'London', 'New York')
    """
    # In production, use: api_key = os.environ.get("OPENWEATHER_API_KEY")
    # For this example, we'll use a direct string (replace with your key)
    api_key = "2dfcb906753cbf580f5a027ebe974842"
    
    try:
        # Construct the API URL
        base_url = "https://api.openweathermap.org/data/2.5/weather"
        params = {
            "q": city,
            "appid": api_key,  # Now properly as a string
            "units": "metric"  # For temperature in Celsius
        }
        
        # Send the request
        response = requests.get(base_url, params=params)
        data = response.json()
        
        # Check if the request was successful
        if response.status_code == 200:
            # Extract relevant weather information
            weather_desc = data["weather"][0]["description"]
            temperature = data["main"]["temp"]
            humidity = data["main"]["humidity"]
            wind_speed = data["wind"]["speed"]
            
            # Format the weather information
            weather_info = f"Current weather in {city}:\n"
            weather_info += f"- Condition: {weather_desc.capitalize()}\n"
            weather_info += f"- Temperature: {temperature}°C\n"
            weather_info += f"- Humidity: {humidity}%\n"
            weather_info += f"- Wind Speed: {wind_speed} m/s"
            
            return weather_info
        else:
            return f"Error: Could not retrieve weather data for {city}. Status code: {response.status_code}. Message: {data.get('message', 'Unknown error')}"
    
    except Exception as e:
        return f"Error fetching weather data: {str(e)}"

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        # Create timezone object
        tz = pytz.timezone(timezone)
        # Get current time in that timezone
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"

# Simple calculator tool as an additional example
@tool
def simple_calculator(operation: str, num1: float, num2: float) -> str:
    """A tool that performs basic arithmetic operations on two numbers.
    
    Args:
        operation: The operation to perform ('add', 'subtract', 'multiply', 'divide')
        num1: The first number
        num2: The second number
    """
    operation = operation.lower()
    
    if operation == "add":
        result = num1 + num2
        return f"{num1} + {num2} = {result}"
    elif operation == "subtract":
        result = num1 - num2
        return f"{num1} - {num2} = {result}"
    elif operation == "multiply":
        result = num1 * num2
        return f"{num1} * {num2} = {result}"
    elif operation == "divide":
        if num2 == 0:
            return "Error: Cannot divide by zero"
        result = num1 / num2
        return f"{num1} / {num2} = {result}"
    else:
        return "Invalid operation. Please use 'add', 'subtract', 'multiply', or 'divide'."

final_answer = FinalAnswerTool()

model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    custom_role_conversions=None,
)

# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

# Load system prompt from prompt.yaml file
with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[
        final_answer,  # Don't remove this
        get_weather,  # Weather information tool
        get_current_time_in_timezone,  # Timezone tool
        image_generation_tool,  # Image generation
        DuckDuckGoSearchTool(),  # Web search capability
        simple_calculator  # Basic calculator
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=None
)

GradioUI(agent).launch()