Spaces:
Runtime error
Runtime error
File size: 1,619 Bytes
c84d465 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 |
import streamlit as st
from langchain.memory import ConversationBufferMemory
from langchain.schema import HumanMessage, AIMessage
from streamlit_chat_media import message
class ChatHistory:
def __init__(self):
self.history = st.session_state.get("history",
ConversationBufferMemory(memory_key="chat_history", return_messages=True))
st.session_state["history"] = self.history
def default_greeting(self):
return "Hi ! 👋"
def default_prompt(self, topic):
return f"Hello ! Ask me anything about {topic} 🤗"
def initialize(self, topic):
message(self.default_greeting(), key='hi', avatar_style="adventurer", is_user=True)
message(self.default_prompt(topic), key='ai', avatar_style="thumbs")
def reset(self):
st.session_state["history"].clear()
st.session_state["reset_chat"] = False
def generate_messages(self, container):
if st.session_state["history"]:
with container:
messages = st.session_state["history"].chat_memory.messages
for i in range(len(messages)):
msg = messages[i]
if isinstance(msg, HumanMessage):
message(
msg.content,
is_user=True,
key=f"{i}_user",
avatar_style="adventurer",
)
elif isinstance(msg, AIMessage):
message(msg.content, key=str(i), avatar_style="thumbs") |