from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml

from tools.final_answer import FinalAnswerTool
from Gradio_UI import GradioUI

# Use updated API from duckduckgo_search: import DDGS instead of ddg
try:
    from duckduckgo_search import DDGS
except ImportError:
    raise ImportError("Please install duckduckgo_search using 'pip install duckduckgo_search'.")

@tool
def DuckDuckGoSearchTool(arg1: str, arg2: int) -> str:
    """
    A tool that lets you search the web using DuckDuckGo.
    
    Args:
        arg1: The search query.
        arg2: The maximum number of results to return.
    
    Returns:
        A formatted string containing the search results.
    """
    with DDGS() as ddgs:
        results = ddgs.text(arg1, max_results=arg2)
    if not results:
        return "No results found."
    
    formatted_results = []
    for idx, result in enumerate(results, start=1):
        title = result.get("title", "No title")
        href = result.get("href", "No URL")
        snippet = result.get("body", "No description available")
        formatted_results.append(
            f"Result {idx}:\n"
            f"🔍 Title: {title}\n"
            f"🌐 URL: {href}\n"
            f"📝 Snippet: {snippet}\n"
        )
    return "\n".join(formatted_results)

@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').
    
    Returns:
        A string indicating the current local time in the given timezone.
    """
    try:
        tz = pytz.timezone(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
def get_weather_info(location: str) -> str:
    """
    A tool that fetches current weather information for a given location using wttr.in.
    
    Args:
        location: The name of the location (e.g., 'New York').
    
    Returns:
        A formatted string with the current weather details.
    """
    try:
        url = f"http://wttr.in/{location}?format=j1"
        response = requests.get(url)
        data = response.json()
        current_condition = data.get("current_condition", [{}])[0]
        temp_c = current_condition.get("temp_C", "N/A")
        weather_desc = current_condition.get("weatherDesc", [{"value": "N/A"}])[0]["value"]
        humidity = current_condition.get("humidity", "N/A")
        return (
            f"Current weather in {location}:\n"
            f"🌡 Temperature: {temp_c}°C\n"
            f"🌤 Weather: {weather_desc}\n"
            f"💧 Humidity: {humidity}%"
        )
    except Exception as e:
        return f"Error fetching weather for {location}: {str(e)}"

# Initialize the final answer tool.
final_answer = FinalAnswerTool()

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

# Load an additional image generation tool from the Hub.
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

# Load prompt templates from a YAML configuration file.
with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

# Create the CodeAgent with the specified model and tools.
agent = CodeAgent(
    model=model,
    tools=[final_answer, DuckDuckGoSearchTool, get_current_time_in_timezone, get_weather_info],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)

# Launch the Gradio UI for interactive use.
GradioUI(agent).launch()