app.py

import streamlit as st
import os
from openai import AzureOpenAI


st.title("Support Chat UI")

client = AzureOpenAI(
  api_key = os.environ['OPENAI_API_KEY'],  
  api_version = "2023-07-01-preview",
  azure_endpoint = os.environ['AZURE_ENDPOINT'],  
)

if "openai_model" not in st.session_state:
    st.session_state["openai_model"] = "gpt-35-turbo"

if "messages" not in st.session_state:
    st.session_state.messages = []

for message in st.session_state.messages:
    with st.chat_message(message["role"]):
        st.markdown(message["content"])

if prompt := st.chat_input("What is up?"):
    st.session_state.messages.append({"role": "user", "content": prompt})
    with st.chat_message("user"):
        st.markdown(prompt)

    with st.chat_message("assistant"):
        message_placeholder = st.empty()
        full_response = ""
        
        for response in 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,
        ):
            full_response += (response.choices[0].delta.content or "")
            message_placeholder.markdown(full_response + "▌")
        message_placeholder.markdown(full_response)
    st.session_state.messages.append({"role": "assistant", "content": full_response})