post_install() {
    if grep -q "^asf" /etc/group &> /dev/null ; then
        groupmod -n asf asf &> /dev/null                                                 
    else
        groupadd -r asf &> /dev/null
    fi
    if grep -q "^asf:" /etc/passwd 2> /dev/null ; then
        usermod -s /bin/false -c "ArchiSteamFarm daemon" -d /opt/asf -g asf asf &> /dev/null
    else
        useradd -s /bin/false -c "ArchiSteamFarm daemon user" -d /opt/asf -g asf -r asf &> /dev/null
    fi
    chown -R asf: /opt/asf
}

post_upgrade() {
    post_install $1
}

post_remove() {
    if grep -q "^asf:" /etc/passwd 2> /dev/null ; then
        userdel asf &> /dev/null
    fi
    if grep -q "^asf" /etc/group &> /dev/null ; then
        groupdel asf &> /dev/null                                                 
    fi
}