Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,85 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
+import time
+from app import get_rag_chain
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+# --- CONFIG ---
+st.set_page_config(page_title="The Seventh Handle", page_icon="📖", layout="centered")
+
+# --- CUSTOM CSS ---
+st.markdown("""
+    <style>
+    .stChatMessage { border-radius: 10px; border: 1px solid #E0E0E0; }
+    div[data-testid="stChatMessage"]:nth-child(even) { background-color: #FFF; border-left: 4px solid #8B5E3C; }
+    div[data-testid="stChatMessage"]:nth-child(odd) { background-color: #F9F9F9; }
+    </style>
+""", unsafe_allow_html=True)
+
+# --- SIDEBAR ---
+with st.sidebar:
+    st.title("About")
+    st.info("This AI simulates the persona of William Branham using a local database of sermon transcripts.")
+    if st.button("Clear Chat"):
+        st.session_state.messages = []
+        st.rerun()
+
+# --- INIT ---
+if "messages" not in st.session_state:
+    st.session_state.messages = [{"role": "assistant", "content": "God bless you. What is on your heart?"}]
+
+@st.cache_resource
+def load_chain():
+    return get_rag_chain()
+
+chain = load_chain()
+
+# --- CHAT UI ---
+st.title("The Message AI")
+st.caption("Interactive Archive • Powered by Gemini Flash")
+st.divider()
+
+for msg in st.session_state.messages:
+    with st.chat_message(msg["role"], avatar="📖" if msg["role"] == "assistant" else "👤"):
+        st.markdown(msg["content"])
+        if "sources" in msg:
+            with st.expander("Sermon References"):
+                for src in msg["sources"]:
+                    st.markdown(f"- *{src}*")
+
+if prompt := st.chat_input("Ask a question..."):
+    st.session_state.messages.append({"role": "user", "content": prompt})
+    with st.chat_message("user", avatar="👤"):
+        st.markdown(prompt)
+
+    with st.chat_message("assistant", avatar="📖"):
+        with st.spinner("Searching the archives..."):
+            try:
+                response = chain.invoke({"query": prompt})
+                result_text = response['result']
+                
+                # Extract Sources
+                source_docs = response.get('source_documents', [])
+                sources = list(set([doc.metadata.get('source', 'Unknown') for doc in source_docs]))
+
+                # Typing Effect
+                placeholder = st.empty()
+                full_response = ""
+                for chunk in result_text.split():
+                    full_response += chunk + " "
+                    time.sleep(0.04)
+                    placeholder.markdown(full_response + "▌")
+                placeholder.markdown(full_response)
+
+                # Save History
+                st.session_state.messages.append({
+                    "role": "assistant", 
+                    "content": full_response,
+                    "sources": sources
+                })
+                
+                if sources:
+                    with st.expander("Sermon References"):
+                        for src in sources:
+                            st.markdown(f"- *{src}*")
+
+            except Exception as e:
+                st.error(f"Error: {e}")