from smolagents import CodeAgent, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from tools.save_image import SaveImageTool
from tools.web_search import WebSearchTool

from Gradio_UI import GradioUI


@tool
def name_meaning(name: str) -> str:
    """Find meaning and origin of a name using web search.
    Args:
        name: A name to look up.
    """
    return (
        f"CALL web_search with query: '{name} name meaning origin'. "
        f"Prefer sources like BehindTheName, Nameberry, Oxford Reference, Britannica. "
        f"Return: origin, meaning, variants, and 1-2 links."
    )



@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
def get_weather(city: str) -> str:
    """Get the current weather for a given city.
    Args:
        city: City name (e.g., "Berlin", "Tokyo", "New York")
    """
    try:
        # Step 1: Geocode the city
        geo_url = "https://geocoding-api.open-meteo.com/v1/search"
        geo_resp = requests.get(geo_url, params={"name": city, "count": 1}).json()

        if "results" not in geo_resp or len(geo_resp["results"]) == 0:
            return f"Could not find city '{city}'. Try another spelling."

        loc = geo_resp["results"][0]
        lat, lon = loc["latitude"], loc["longitude"]
        display_name = f"{loc['name']}, {loc.get('country', '')}"

        # Step 2: Fetch current weather
        weather_url = "https://api.open-meteo.com/v1/forecast"
        weather_resp = requests.get(weather_url, params={
            "latitude": lat,
            "longitude": lon,
            "current_weather": True
        }).json()

        current = weather_resp.get("current_weather", None)
        if not current:
            return f"Weather data unavailable for {display_name}."

        temp = current["temperature"]
        wind = current["windspeed"]
        return f"🌤 Current weather in {display_name}: {temp}°C, wind {wind} km/h."

    except Exception as e:
        return f"Weather lookup failed: {str(e)}"


def build_agent() -> CodeAgent:
    final_answer = FinalAnswerTool()
    save_image = SaveImageTool()
    web_search = WebSearchTool()

    # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
    # model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud'
    model = HfApiModel(
        max_tokens=2096,
        temperature=0.5,
        model_id="Qwen/Qwen2.5-Coder-32B-Instruct",  # it is possible that this model may be overloaded
        custom_role_conversions=None,
    )

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

    with open("prompts.yaml", "r") as stream:
        prompt_templates = yaml.safe_load(stream)

    return CodeAgent(
        model=model,
        tools=[
            final_answer,
            save_image,
            web_search,  # Web search
            image_generation_tool,  # HF Hub tool
            name_meaning,  # Your custom tool
            get_current_time_in_timezone,
            get_weather,  # Extra creative tool!
        ],
        max_steps=6,
        verbosity_level=1,
        grammar=None,
        planning_interval=None,
        name=None,
        description=None,
        prompt_templates=prompt_templates,
    )


def main():
    agent = build_agent()
    GradioUI(agent).launch()


if __name__ == "__main__":
    main()