import streamlit as st
import main

st.set_page_config(
    page_title="Historical Event Explainer",
    page_icon="🏛️",
    layout="wide"
)

st.title("ChronoQuery: Explore History with AI 🕰️")
st.markdown("Unlock the past — ask about any historical event and get instant, AI-powered insights.")

with st.form(key="query_form"):
    user_query = st.text_input("Enter a historical event or question:")
    submit_button = st.form_submit_button(label="Submit")

if submit_button and user_query:
    with st.spinner("⏳ Fetching historical insights..."):
        try:
            result = main.final_chain.invoke(user_query)
            st.write(result)
        except Exception as e:
            st.error("⚠️ Something went wrong. Please try again.")
            st.exception(e)