chatbot.py

import streamlit as st
import google.generativeai as genai
from transformers import pipeline
import os

# 🔑 Fetch API key from Hugging Face Secrets
GEMINI_API_KEY = os.getenv("gemini_api")

if GEMINI_API_KEY:
    genai.configure(api_key=GEMINI_API_KEY)
else:
    st.error("⚠️ Google API key is missing! Set it in Hugging Face Secrets.")

# Load Sentiment Analysis Model (RoBERTa)
sentiment_pipeline = pipeline("sentiment-analysis", model="cardiffnlp/twitter-roberta-base-sentiment")

# Function to analyze sentiment
def analyze_sentiment(text):
    sentiment_result = sentiment_pipeline(text)[0]
    label = sentiment_result['label']  # Extract sentiment label (POSITIVE, NEGATIVE, NEUTRAL)
    score = sentiment_result['score']  # Extract confidence score

    # Convert labels to a readable format
    sentiment_mapping = {
        "LABEL_0": "Negative",
        "LABEL_1": "Neutral",
        "LABEL_2": "Positive"
    }
    return sentiment_mapping.get(label, "Unknown"), score

# Function to generate AI response & analyze sentiment
def chatbot_response(user_prompt):
    if not user_prompt:
        return None, None, None

    try:
        # AI Response from Gemini
        model = genai.GenerativeModel("gemini-1.5-pro")
        ai_response = model.generate_content(user_prompt)

        # Sentiment Analysis
        sentiment_label, confidence = analyze_sentiment(user_prompt)

        return ai_response.text, sentiment_label, confidence
    except Exception as e:
        return f"❌ Error: {e}", None, None