pages/Chatbot.py

import streamlit as st
import common
import os

INDEX_NAME = os.environ["INDEX_NAME"]
PKL_NAME = os.environ["PKL_NAME"]
from log import logger
common.check_login()

st.title("💬 Chatbot")
if st.button("リセット",use_container_width=True):
    st.session_state.chat_engine.reset()
    st.session_state.messages = [{"role": "assistant", "content": "お困りごとはございますか？"}]
    logger.info("reset")
    st.experimental_rerun()


if "messages" not in st.session_state:
    st.session_state["messages"] = [{"role": "assistant", "content": "お困りごとはございますか？"}]

for msg in st.session_state.messages:
    st.chat_message(msg["role"]).write(msg["content"])

if prompt := st.chat_input():
    st.session_state.messages.append({"role": "user", "content": prompt})
    st.chat_message("user").write(prompt)
    response = st.session_state.chat_engine.chat(prompt)
    fname =  "　※参照：" 
    for node in response.source_nodes:
        logger.info(node)
        if node.node.metadata is not None:
            if "filename" in node.node.metadata:
                fname = fname + "　"+str(node.node.metadata["filename"]) 
    msg = str(response) +  str(fname)
    logger.info(msg)
    st.session_state.messages.append({"role": "assistant", "content": msg})
    st.chat_message("assistant").write(msg)