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

# Tool to fetch weather data (No API Key Required, Uses wttr.in)
@tool
def get_weather(city: str) -> str:
    """Fetches current weather for a given city using wttr.in.
    
    Args:
        city: The name of the city for which weather information is needed.
    
    Returns:
        str: A string containing weather details such as temperature, humidity, and wind speed.
    """
    try:
        url = f"https://wttr.in/{city}?format=%C+%t+%h+%w"
        response = requests.get(url)
        if response.status_code == 200:
            return f"Weather in {city}: {response.text}"
        return "Weather data unavailable."
    except Exception as e:
        return f"Error fetching weather: {e}"

# Tool to fetch top 5 tourist attractions in a city
@tool
def get_top_tourist_attractions(city: str) -> str:
    """Finds the top 5 must-visit places in a specified city using DuckDuckGo search.

    Args:
        city: The name of the city where attractions are being searched.

    Returns:
        str: A list of the top 5 tourist attractions (names only).
    """
    try:
        search_tool = DuckDuckGoSearchTool()
        results = search_tool.forward(f"Top tourist attractions in {city}")

        if results:
            return f"Top 5 Tourist Attractions in {city}:\n{results}"
        
        return f"No tourist attractions found for {city}."

    except Exception as e:
        return f"Error fetching tourist attractions: {e}"


# Tool to get local time
@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)}"

# Tool to fetch top 5 restaurants using DuckDuckGo Search
@tool
def get_top_restaurants(city: str) -> str:
    """Finds the top 5 restaurants in a specified city using DuckDuckGo search.

    Args:
        city: The name of the city where restaurants are being searched.
    Returns:
        str: A list of the top 5 restaurants including names and website links.
    """
    try:
        search_tool = DuckDuckGoSearchTool()
        results = search_tool.forward(f"Top 5 restaurants in {city}")

        if results:
            return f"Top 5 Restaurants in {city}:\n{results}"
        
        return "No restaurant data found."

    except Exception as e:
        return f"Error fetching restaurants: {e}"


# Final answer tool
final_answer = FinalAnswerTool()

# AI model setup (using a default model for now, can be replaced)
model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    custom_role_conversions=None,
)

# Loading the prompt templates
with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

# Setting up the CodeAgent with the defined tools
agent = CodeAgent(
    model=model,
    tools=[final_answer, get_weather, get_top_tourist_attractions, get_current_time_in_timezone, get_top_restaurants],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)

# Launch Gradio UI
GradioUI(agent).launch()