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
from huggingface_hub import login
import os

hf_api_key = os.getenv("HUGGINGFACEHUB_API_TOKEN")

login(hf_api_key)

# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def get_exchange_rate(base_currency: str, target_currency: str) -> str:
    """Fetches the exchange rate from one currency to another.
    Args:
        base_currency: The currency to convert from (e.g., 'USD').
        target_currency: The currency to convert to (e.g., 'THB').
    """
    try:
        url = f"https://api.exchangerate-api.com/v4/latest/{base_currency.upper()}"
        response = requests.get(url)
        data = response.json()

        if "rates" not in data or target_currency.upper() not in data["rates"]:
            return f"Exchange rate for {base_currency} to {target_currency} not found."

        rate = data["rates"][target_currency.upper()]
        return f"1 {base_currency.upper()} = {rate} {target_currency.upper()}."
    
    except Exception as e:
        return f"Error fetching exchange rate: {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)}"


final_answer = FinalAnswerTool()

# 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)
    
agent = CodeAgent(
    model=model,
    tools=[get_current_time_in_timezone, get_exchange_rate, DuckDuckGoSearchTool(), final_answer], ## add your tools here (don't remove final answer)
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()