from typing import Any, Optional
from smolagents.tools import Tool
import requests
import markdownify
import smolagents

class BMRCalculatorTool(Tool):
    name = "bmr_calculator"
    description = "Calcuates the basal metabolism rate (BMR) of a male/female given weight (in kgs), height (in cms), age (in yrs), and gender."
    inputs = {
        'gender': {'type': 'string', 'description': 'Gender of the person.'},
        'weight': {'type': 'number', 'description': 'Weight of the person.'},
        'height': {'type': 'number', 'description': 'Height of the person.'},
        'age': {'type': 'number', 'description': 'Age of the person.'}
    }
    output_type = 'string'
    
    
    def calculate_bmr(self, gender, weight, height, age):
        if gender.lower() == "male":
            bmr = 88.36 + (13.4 * weight) + (4.8 * height) - (5.7 * age)
        else: # gender == "female":
            bmr = 447.6 + (9.2 * weight) + (3.1 * height) - (4.3 * age)
        return f"Your BMR is {bmr:.2f} calories/day."
    
    def forward(self, gender: str, weight: float, height: int, age: int):
        return self.calculate_bmr(gender, weight, height, age)