Update app.py

app.py

@@ -32,7 +32,133 @@ def get_current_time_in_timezone(timezone: str) -> str:
         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)}"
+@tool
+def create_healthy_diet_plan(weight: float, height: float, age: int = 30, gender: str = "not specified", activity_level: str = "moderate") -> str:  
+    """A tool that creates a personalized healthy diet plan based on user metrics.  
+    
+    Args:  
+        weight: Weight in kilograms (kg)  
+        height: Height in centimeters (cm)  
+        age: Age in years (default: 30)  
+        gender: "male", "female", or "not specified" (default: "not specified")  
+        activity_level: "sedentary", "light", "moderate", "active", or "very active" (default: "moderate")  
+    """  
+    # Calculate BMI  
+    bmi = weight / ((height/100) ** 2)  
+    bmi_rounded = round(bmi, 1)  
+    
+    # Determine BMI category  
+    if bmi < 18.5:  
+        bmi_category = "underweight"  
+    elif bmi < 25:  
+        bmi_category = "normal weight"  
+    elif bmi < 30:  
+        bmi_category = "overweight"  
+    else:  
+        bmi_category = "obese"  
+        
+    # Calculate Basal Metabolic Rate (BMR) using Mifflin-St Jeor Equation  
+    if gender.lower() == "male":  
+        bmr = 10 * weight + 6.25 * height - 5 * age + 5  
+    elif gender.lower() == "female":  
+        bmr = 10 * weight + 6.25 * height - 5 * age - 161  
+    else:  
+        # Average of male and female calculations for non-specified gender  
+        bmr = 10 * weight + 6.25 * height - 5 * age - 78  
+        
+    # Activity level multiplier for Total Daily Energy Expenditure (TDEE)  
+    activity_multipliers = {  
+        "sedentary": 1.2,      # Little or no exercise  
+        "light": 1.375,        # Light exercise 1-3 days/week  
+        "moderate": 1.55,      # Moderate exercise 3-5 days/week  
+        "active": 1.725,       # Hard exercise 6-7 days/week  
+        "very active": 1.9     # Very hard exercise & physical job or training twice a day  
+    }  
+    
+    multiplier = activity_multipliers.get(activity_level.lower(), 1.55)  
+    tdee = round(bmr * multiplier)  
+    
+    # Diet recommendation based on BMI category  
+    if bmi_category == "underweight":  
+        calorie_adjustment = 300  # Surplus for weight gain  
+        protein_ratio = 1.6  # g per kg of body weight  
+        diet_focus = "nutrient-dense, calorie-rich foods to gain healthy weight"  
+    elif bmi_category == "normal weight":  
+        calorie_adjustment = 0  # Maintenance  
+        protein_ratio = 1.4  
+        diet_focus = "balanced nutrition to maintain your healthy weight"  
+    elif bmi_category == "overweight":  
+        calorie_adjustment = -300  # Deficit for weight loss  
+        protein_ratio = 1.8  
+        diet_focus = "portion control and nutrient-dense, lower-calorie foods"  
+    else:  # obese  
+        calorie_adjustment = -500  # Larger deficit for weight loss  
+        protein_ratio = 2.0  
+        diet_focus = "whole foods with high satiety and controlled portions"  
+        
+    # Calculate daily calorie target  
+    daily_calories = tdee + calorie_adjustment  
+    
+    # Calculate macronutrient breakdown  
+    daily_protein = round(weight * protein_ratio)  # grams  
+    daily_protein_calories = daily_protein * 4  # 4 calories per gram of protein  
+    
+    # Fat is about 25-30% of calories  
+    daily_fat_calories = round(daily_calories * 0.28)  
+    daily_fat = round(daily_fat_calories / 9)  # 9 calories per gram of fat  
+    
+    # Remaining calories from carbs  
+    daily_carb_calories = daily_calories - daily_protein_calories - daily_fat_calories  
+    daily_carb = round(daily_carb_calories / 4)  # 4 calories per gram of carb  
+    
+    # Generate diet plan response  
+    response = f"""  
+Based on your measurements:  
+- Weight: {weight} kg  
+- Height: {height} cm  
+- BMI: {bmi_rounded} ({bmi_category})  
+
+Your estimated daily calorie needs are approximately {daily_calories} calories.  
+
+RECOMMENDED DAILY NUTRITION:  
+• Protein: {daily_protein}g ({round(daily_protein_calories)} calories)  
+• Carbohydrates: {daily_carb}g ({round(daily_carb_calories)} calories)  
+• Fats: {daily_fat}g ({round(daily_fat_calories)} calories)  
+
+MEAL PLAN FOCUS:  
+Your diet should focus on {diet_focus}.  
+
+SAMPLE DAILY MEAL STRUCTURE:  
+
+BREAKFAST (25% of daily calories):  
+• Protein source (eggs, Greek yogurt, or protein shake)  
+• Complex carbohydrates (oatmeal, whole grain toast)  
+• Healthy fat (nuts, seeds, or avocado)  
+• Fruit for vitamins and fiber  
+
+LUNCH (30% of daily calories):  
+• Lean protein (chicken, fish, tofu, or legumes)  
+• Complex carbohydrates (brown rice, quinoa, or sweet potato)  
+• Vegetables (at least 2 varieties)  
+• Healthy fat source (olive oil dressing or nuts)  
+
+DINNER (30% of daily calories):  
+• Lean protein (fish, turkey, beef, or plant-based alternative)  
+• Non-starchy vegetables (half your plate)  
+• Small portion of complex carbohydrates  
+• Healthy fat source  
+
+SNACKS (15% of daily calories):  
+• Mid-morning: Fruit with nuts or yogurt  
+• Mid-afternoon: Vegetable sticks with hummus or a small protein shake  
+
+HYDRATION:  
+• Aim for 8-10 glasses of water daily  
+• Limit sugary drinks and alcohol  
 
+This plan is personalized based on your metrics and designed to support your health goals while providing adequate nutrition.  
+"""  
+    return response  
 
 final_answer = FinalAnswerTool()