frontend.py

import streamlit as st
import requests
from gtts import gTTS
import base64
from io import BytesIO

st.set_page_config(page_title="NeuroPulse AI", page_icon="🧠", layout="wide")

if "review" not in st.session_state:
    st.session_state.review = ""
if "dark_mode" not in st.session_state:
    st.session_state.dark_mode = False

if st.session_state.dark_mode:
    st.markdown("""<style>body { background-color: #111; color: white; }</style>""", unsafe_allow_html=True)

with st.sidebar:
    st.title("⚙️ Settings")
    st.session_state.dark_mode = st.toggle("🌙 Dark Mode", value=st.session_state.dark_mode)
    api_key = st.text_input("🔐 API Key", type="password")
    backend_url = st.text_input("🌐 Backend URL", value="http://localhost:8000")

st.title("🧠 NeuroPulse AI – Multimodal Review Analyzer")
review = st.text_area("📝 Enter Review", value=st.session_state.review, height=150)

if st.button("🔍 Analyze", use_container_width=True):
    if not api_key:
        st.error("⚠️ Please enter API key.")
    elif len(review.split()) < 10:
        st.warning("📝 Minimum 10 words required.")
    else:
        with st.spinner("Processing..."):
            try:
                payload = {"text": review}
                headers = {"x-api-key": api_key}
                res = requests.post(f"{backend_url}/analyze/", json=payload, headers=headers)
                if res.status_code == 200:
                    data = res.json()
                    st.success("✅ Analysis Successful")
                    st.info(f"📌 Summary: {data['summary']}")
                    st.metric("📊 Sentiment", data["sentiment"]["label"])
                else:
                    st.error(f"❌ API Error: {res.status_code} - {res.text}")
            except Exception as e:
                st.error(f"🚫 Exception: {e}")