import streamlit as st
from auth import get_fullname_for_user, get_role_for_user

def build_sidebar():

    if st.session_state.get("authentication_status") != True:
        return

    authenticator = st.session_state.get("authenticator")
    username = st.session_state.get("username")

    if not authenticator or not username:
        return

    role = get_role_for_user(username)
    fullname = get_fullname_for_user(username)

    with st.sidebar:
        st.logo("app/images/GMN_Logo_neu_rgb.png", size="small")
        st.write(f"**{fullname}** ({role})")

        col1, col2 = st.columns(2)
        with col1:
            if st.button("Logout", use_container_width=True):
                authenticator.logout("Logout", "unrendered")
                st.rerun()
        with col2:
            if st.button("Home", use_container_width=True):
                st.switch_page("pages/home.py")
        st.divider()
        st.markdown("## Menü")

        st.page_link("pages/Benutzer.py", label="Benutzer anlegen")





# Damit die leere Sidebar komplett verschwindet nach dem Logout
def hide_sidebar_if_logged_out():
    if st.session_state.get("authentication_status") != True:
        st.markdown("""
            <style>
                /* komplette Sidebar + Toggle ausblenden */
                [data-testid="stSidebar"] {display: none;}
                [data-testid="stSidebarNav"] {display: none;}
                [data-testid="collapsedControl"] {display: none;}
                
                /* Content wieder ganz nach links */
                [data-testid="stAppViewContainer"] {
                    margin-left: 0;
                }
            </style>
        """, unsafe_allow_html=True)