Update app.py

app.py

@@ -228,6 +228,7 @@ def main():
 
 
 
+    # Custom CSS
     st.markdown(
         """
         <style>
@@ -249,9 +250,11 @@ def main():
         """, unsafe_allow_html=True
     )
 
+    # Initialize chat history
     if "chat_history" not in st.session_state:
-        st.session_state.chat_history = list()
+        st.session_state.chat_history = []
 
+    # Form for user input
     with st.form("input_form"):
         "*Enter messages here*"
 
@@ -259,17 +262,24 @@ def main():
 
         with col1:
             message = st.text_input("message", label_visibility="collapsed")
-        
-            if message:    
-                st.session_state.chat_history.append(f"{datetime.now().strftime(r'%H:%M:%S')}:  {message}")
 
         with col2:
             submitted = st.form_submit_button(use_container_width=True)
 
-    if submitted:
-        for msg in st.session_state.chat_history:
-            with st.chat_message("user", avatar="🤪"):
-                st.write(msg)
+        # Process and append user message and response to chat history
+        if submitted and message:
+            user_msg = f"{datetime.now().strftime(r'%H:%M:%S')}: You: {message}"
+            st.session_state.chat_history.append(user_msg)
+        
+            # Get response from the processing function
+            response = ask_alans_ai(message)
+            response_msg = f"{datetime.now().strftime(r'%H:%M:%S')}: Bot: {response}"
+            st.session_state.chat_history.append(response_msg)
+
+    # Display chat history
+    for msg in st.session_state.chat_history:
+        with st.chat_message("user", avatar="🤪"):
+            st.write(msg)