app.py

import streamlit as st
from openai import OpenAI

# Setting up the Streamlit page configuration
st.set_page_config(page_title="StreamlitChatMessageHistory", page_icon="💬")
st.title("Chatbot")

# Initialize session state variables
if "setup_complete" not in st.session_state:
    st.session_state.setup_complete = False
if "user_message_count" not in st.session_state:
    st.session_state.user_message_count = 0
if "feedback_shown" not in st.session_state:
    st.session_state.feedback_shown = False
if "chat_complete" not in st.session_state:
    st.session_state.chat_complete = False
if "messages" not in st.session_state:
    st.session_state.messages = []


# Helper functions to update session state
def complete_setup():
    st.session_state.setup_complete = True

# Setup stage for collecting user details
if not st.session_state.setup_complete:
    # st.subheader('Personal Information')
    st.subheader('Personal Information afaefaef')
  
    # Get personal information input
    st.session_state["name"] = st.text_input(label="Name", value="",  placeholder="Enter your name", max_chars=40)
    
    # Company and Position Section
    st.subheader('Company and Position')

    st.session_state["position"] = st.selectbox(
        "Choose a position",
        ("Data Scientist", "Data Engineer", "ML Engineer", "BI Analyst", "Financial Analyst"),
        index=("Data Scientist", "Data Engineer", "ML Engineer", "BI Analyst", "Financial Analyst").index("Data Scientist")
    )

    st.session_state["company"] = st.selectbox(
        "Select a Company",
        ("Amazon", "Meta", "Udemy", "365 Company", "Nestle", "LinkedIn", "Spotify"),
        index=("Amazon", "Meta", "Udemy", "365 Company", "Nestle", "LinkedIn", "Spotify").index("Amazon")
    )

    # Button to complete setup
    if st.button("Start Interview", on_click=complete_setup):
        st.write("Setup complete. Starting interview...")
    
# Interview phase
if st.session_state.setup_complete and not st.session_state.chat_complete:

    # Initialize OpenAI client
    client = OpenAI(api_key=st.secrets["OPENAI_API_KEY"])

    # Setting OpenAI model if not already initialized
    if "openai_model" not in st.session_state:
        st.session_state["openai_model"] = "gpt-4o"

    # Initializing the system prompt for the chatbot
    if not st.session_state.messages:
        st.session_state.messages = [{
            "role": "system",
            "content": (f"You are an HR that interviews {st.session_state['name']}. You should interview him for the "
                        f"{st.session_state['position']} position in the company {st.session_state['company']}")
        }]

    # Display chat messages
    for message in st.session_state.messages:
        if message["role"] != "system":
            with st.chat_message(message["role"]):
                st.markdown(message["content"])

    # Handle user input and OpenAI response
    # Put a max_chars limit
    if st.session_state.user_message_count < 5:
        if prompt := st.chat_input("Your response", max_chars=1000):
            st.session_state.messages.append({"role": "user", "content": prompt})
            with st.chat_message("user"):
                st.markdown(prompt)

            if st.session_state.user_message_count < 4:
                with st.chat_message("assistant"):
                    stream = client.chat.completions.create(
                        model=st.session_state["openai_model"],
                        messages=[{"role": m["role"], "content": m["content"]} for m in st.session_state.messages],
                        stream=True,
                    )
                    response = st.write_stream(stream)
                st.session_state.messages.append({"role": "assistant", "content": response})

            # Increment the user message count
            st.session_state.user_message_count += 1

    # Check if the user message count reaches 5
    if st.session_state.user_message_count >= 5:
        st.session_state.chat_complete = True