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

# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def calculate_investment_return(
    initial_capital: float,
    final_capital: float,
    years: float
) -> str:
    """Calculates the total return and annualized return of an investment.

    Args:
        initial_capital: The initial amount of money invested.
        final_capital: The final value of the investment.
        years: The number of years the investment was held.
    """
    if initial_capital <= 0:
        return "Error: initial_capital must be greater than zero."

    if final_capital < 0:
        return "Error: final_capital cannot be negative."

    if years <= 0:
        return "Error: years must be greater than zero."

    total_return = (final_capital / initial_capital) - 1
    annualized_return = (final_capital / initial_capital) ** (1 / years) - 1

    return (
        f"Total return: {total_return:.2%}\n"
        f"Annualized return (CAGR): {annualized_return:.2%}"
    )

@tool
def calculate_sharpe_ratio(
    mean_return: float,
    risk_free_rate: float,
    volatility: float
) -> str:
    """Calculates the annualized Sharpe ratio of an investment strategy.

    Args:
        mean_return: The annualized mean return of the strategy as a decimal.
        risk_free_rate: The annualized risk-free rate as a decimal.
        volatility: The annualized standard deviation of returns as a decimal.
    """
    if volatility <= 0:
        return "Error: volatility must be greater than zero."

    sharpe_ratio = (mean_return - risk_free_rate) / volatility

    return f"Sharpe ratio: {sharpe_ratio:.3f}"

@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,calculate_investment_return,calculate_sharpe_ratio], ## 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()