Code Editor for app.py

import streamlit as st

# Set page title
st.title("Talk2Data + StreamLit")

# Create sidebar
with st.sidebar:
    # File upload widget
    uploaded_file = st.file_uploader("File Upload", type=["csv", "txt", "pdf"])
    
    # Drag and drop area (Note: file_uploader already provides drag&drop functionality)
    st.markdown("#### Drag & Drop")
    st.markdown("*Drag files here*")

# Initialize chat history in session state
if "messages" not in st.session_state:
    st.session_state.messages = []

# Display chat history
st.markdown("### Chat History")
for message in st.session_state.messages:
    with st.chat_message(message["role"]):
        st.markdown(message["content"])

# Chat input
if prompt := st.chat_input("Enter your message..."):
    # Add user message to chat history
    st.session_state.messages.append({"role": "user", "content": prompt})
    
    # Display user message
    with st.chat_message("user"):
        st.markdown(prompt)
    
    # Example response (you can modify this based on your needs)
    response = "I received your message: " + prompt
    
    # Display assistant response
    with st.chat_message("assistant"):
        st.markdown(response)
    
    # Add assistant response to chat history
    st.session_state.messages.append({"role": "assistant", "content": response})