import streamlit as st

# Page configuration
st.set_page_config(page_title="Simple Chatbot", page_icon="🤖")

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

# Display header
st.title("💬 Simple Chatbot")
st.caption("Ask me anything about Python!")

# Display 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("Type 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)
    
    # Generate bot response
    response = f"You said: {prompt}"
    
    # Add bot response to chat history
    st.session_state.messages.append({"role": "assistant", "content": response})
    
    # Display bot response
    with st.chat_message("assistant"):
        st.markdown(response)

# Clear chat button
if st.sidebar.button("Clear Chat"):
    st.session_state.messages = []
    st.rerun()