from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from typing import Tuple

from Gradio_UI import GradioUI

@tool
def calculate_bmi(weight: float, height: float) -> str:
    """A tool that calculates the Body Mass Index (BMI).
    
    Args:
        weight: The weight of the person in kilograms.
        height: The height of the person in meters.
    
    Returns:
        A string displaying the BMI and its classification.
    """
    try:
        bmi = weight / (height ** 2)
        classification = (
            "Underweight" if bmi < 18.5 else
            "Normal weight" if bmi < 24.9 else
            "Overweight" if bmi < 29.9 else
            "Obese"
        )
        return f"BMI: {bmi:.2f} ({classification})"
    except Exception as e:
        return f"Error calculating BMI: {str(e)}"

@tool
def calculate_bmr(weight: float, height: float, age: int, sex: str) -> str:
    """A tool that calculates the Basal Metabolic Rate (BMR) using the Mifflin-St Jeor Equation.
    
    Args:
        weight: The weight of the person in kilograms.
        height: The height of the person in centimeters.
        age: The age of the person in years.
        sex: The biological sex of the person ('male' or 'female').
    
    Returns:
        A string displaying the calculated BMR.
    """
    try:
        if sex.lower() == "male":
            bmr = 88.36 + (13.4 * weight) + (4.8 * height) - (5.7 * age)
        elif sex.lower() == "female":
            bmr = 447.6 + (9.2 * weight) + (3.1 * height) - (4.3 * age)
        else:
            return "Error: Invalid sex input. Use 'male' or 'female'."
        
        return f"BMR: {bmr:.2f} kcal/day"
    except Exception as e:
        return f"Error calculating BMR: {str(e)}"

@tool
def calculate_water_requirement(weight: float) -> str:
    """A tool that calculates the daily water intake requirement.
    
    Args:
        weight: The weight of the person in kilograms.
    
    Returns:
        A string displaying the recommended daily water intake in liters.
    """
    try:
        water_intake = 0.033 * weight
        return f"Recommended daily water intake: {water_intake:.2f} liters"
    except Exception as e:
        return f"Error calculating water requirement: {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=model_id,# 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, image_generation_tool, get_current_time_in_timezone, DuckDuckGoSearchTool(), calculate_water_requirement, calculate_bmi, calculate_bmr], ## 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()