Update chat history

app.py

@@ -5,7 +5,6 @@ import os
 import uuid
 from datetime import datetime
 import time
-import random
 
 # Load environment variables
 load_dotenv()
@@ -17,7 +16,7 @@ st.set_page_config(
     layout="wide"
 )
 
-# Initialize session state
+# Initialize session state for conversations and history
 if "conversations" not in st.session_state:
     st.session_state.conversations = {}
 
@@ -164,6 +163,18 @@ with st.sidebar:
     
     st.markdown("---")
 
+    # Chat History Section
+    st.markdown("### Chat History")
+    for conv_id, conv_data in st.session_state.conversations.items():
+        if st.button(conv_data["title"], key=f"hist_{conv_id}"):
+            st.session_state.current_conversation_id = conv_id
+            st.rerun()
+
+    # New Chat Button
+    if st.button("+ New Chat"):
+        create_new_chat()
+        st.rerun()
+
 # Main chat window
 with st.container():
     current_id = st.session_state.current_conversation_id