import streamlit as st

def get_rag():
    if 'vectorstore' in st.session_state and 'chain' in st.session_state:
        vectorstore = st.session_state['vectorstore']
        chain = st.session_state['chain']
        
        return vectorstore, chain
    else:
        return None, None
    
def set_rag(vectorstore, chain):
    st.session_state['vectorstore'] = vectorstore
    st.session_state['chain'] = chain

def set_partie_prenante(partie_prenante):
    if "partie_prenante" not in st.session_state:
        st.session_state['partie_prenante'] = []
    st.session_state['partie_prenante'] = partie_prenante

def get_partie_prenante():
    if 'parties_prenante' in st.session_state:
        return st.session_state['partie_prenante']
    else:
        return None

def get_parties_prenantes():
    if 'parties_prenantes' in st.session_state:
        return st.session_state['parties_prenantes']
    else:
        return None