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

@tool
def get_exchange_rate(from_currency: str, to_currency: str) -> float:
    """A tool that fetches the current exchange rate between two currencies using official currency codes
        using Rates By Exchange Rate API
    
    Args:
        from_currency: The currency code to convert from (e.g., 'USD', 'EUR', 'MGA')
        to_currency: The currency code to convert to (e.g., 'USD', 'EUR', 'MGA')
        
    Returns:
        float: The exchange rate from the source currency to the target currency
    """
    try:
        api_url = f"https://open.er-api.com/v6/latest/{from_currency}"
        response = requests.get(api_url)
        
        if response.status_code == 200:
            data = response.json()
            return data['rates'][to_currency]
        else:
            return f"Error: Unable to fetch exchange rate. Status code: {response.status_code}"
            
    except Exception as e:
        return f"Error: {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=[final_answer, get_exchange_rate, get_current_time_in_timezone],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()