#!/bin/bash

check_session_state() {
    active_session=$(loginctl | grep "online" | awk '{print $1}')

    for session in $active_session; do
        current_state=$(loginctl show-session $session -p Active --value)

        if [[ $current_state == "no" ]]; then
            /usr/bin/loginctl lock-session $session
        fi
    done
}

while true; do
    check_session_state
    sleep 1
done