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| import os | |
| import random | |
| import streamlit as st | |
| #decorator | |
| def enable_chat_history(func): | |
| if os.environ.get("OPENAI_API_KEY"): | |
| # to clear chat history after swtching chatbot | |
| current_page = func.__qualname__ | |
| if "current_page" not in st.session_state: | |
| st.session_state["current_page"] = current_page | |
| if st.session_state["current_page"] != current_page: | |
| try: | |
| st.cache_resource.clear() | |
| del st.session_state["current_page"] | |
| del st.session_state["messages"] | |
| except: | |
| pass | |
| # to show chat history on ui | |
| if "messages" not in st.session_state: | |
| st.session_state["messages"] = [{"role": "assistant", "content": "How can I help you?"}] | |
| for msg in st.session_state["messages"]: | |
| st.chat_message(msg["role"]).write(msg["content"]) | |
| def execute(*args, **kwargs): | |
| func(*args, **kwargs) | |
| return execute | |
| def display_msg(msg, author): | |
| """Method to display message on the UI | |
| Args: | |
| msg (str): message to display | |
| author (str): author of the message -user/assistant | |
| """ | |
| st.session_state.messages.append({"role": author, "content": msg}) | |
| st.chat_message(author).write(msg) | |
| def configure_openai_api_key(): | |
| openai_api_key = st.sidebar.text_input( | |
| label="OpenAI API Key", | |
| type="password", | |
| value=st.session_state['OPENAI_API_KEY'] if 'OPENAI_API_KEY' in st.session_state else '', | |
| placeholder="sk-..." | |
| ) | |
| if openai_api_key: | |
| st.session_state['OPENAI_API_KEY'] = openai_api_key | |
| os.environ['OPENAI_API_KEY'] = openai_api_key | |
| else: | |
| st.error("Please add your OpenAI API key to continue.") | |
| st.info("Obtain your key from this link: https://platform.openai.com/account/api-keys") | |
| st.stop() | |
| return openai_api_key |