app.py

import os
from groq import Groq
import streamlit as st
from dotenv import load_dotenv

# Load API key from .env file
load_dotenv()

# Retrieve the API key from environment variables
api_key = os.getenv("GROQ_API_KEY")

# Ensure the API key is loaded correctly
if not api_key:
    st.error("API key is missing. Please set the GROQ_API_KEY in the .env file.")
else:
    # Initialize the Groq client
    client = Groq(api_key=api_key)

    # Define the health diet topics for the chatbot
    diet_topics = [
        "weight loss plan", "balanced diet", "high-protein diet", "low-carb diet", 
        "vegetarian diet", "keto diet", "intermittent fasting", "healthy meal plans", 
        "heart-healthy diet", "diabetes-friendly diet", "meal prepping", "nutrition for muscle gain", 
        "detox diet", "vitamin-rich foods", "hydration tips", "healthy snacks", 
        "immune-boosting foods", "foods for better digestion", "foods for glowing skin", 
        "healthy breakfasts", "meal plans for athletes", "diet for weight maintenance", 
        "mindful eating", "portion control", "anti-inflammatory foods", "meal planning for busy people"
    ]

    # Function to fetch chatbot completion from Groq API
    def get_response(query):
        completion = client.chat.completions.create(
            model="llama-3.3-70b-versatile",
            messages=[{"role": "user", "content": query}],
            temperature=0.7,
            max_completion_tokens=1024,
            top_p=1,
        )
        response = completion.choices[0].message.content
        return response

    def main():
        st.title("Health Diet Plan Chatbot")

        # Let the user choose a diet plan or type a custom query
        topic = st.selectbox("Choose a diet plan topic", diet_topics)
        user_input = st.text_area("Or ask a diet-related question:", "")

        # If the user provides a query, we use that
        query = user_input if user_input else f"Tell me about {topic} for a healthy body"

        # Create a submit button
        submit_button = st.button("Submit")

        # Call the Groq API to get the response if the button is clicked
        if submit_button and query:
            response = get_response(query)

            # Display the response
            st.write("### Response:")
            st.write(response)

        # Handle unrelated queries
        if user_input and not any(topic in user_input.lower() for topic in diet_topics):
            st.write("Sorry, I can only answer diet-related questions.")

    # Ensure the main function is called when the script is run
    if __name__ == "__main__":
        main()