post_install() {
  echo ':: In order to enable nordvpn you have to start the following service:'
  echo '     sudo systemctl enable --now nordvpnd'
  echo ':: You have to add yourself to the nordvpn group:'
  echo "     sudo gpasswd -a USERNAME nordvpn"
  echo ':: You then have to restart for the group to be created:'
  echo "     reboot"

  for lib in /usr/lib/nordvpn/*.so ; do
    if [ -f "$lib" ] ; then
      ln -s $lib /usr/lib/
    fi
  done
}

pre_install() {
  if [ -d /var/lib/nordvpn/data/ ]; then
  	chattr -i /var/lib/nordvpn/data/*
  fi
}

pre_upgrade() {
  chattr -i /var/lib/nordvpn/data/*
}

post_upgrade() {
  for lib in /usr/lib/nordvpn/*.so ; do
    if [ -f "$lib" ] ; then
      ln -sf $lib /usr/lib/
    fi
  done
}

pre_remove() {
  chattr -i /var/lib/nordvpn/data/*
  for lib in /usr/lib/nordvpn/*.so ; do
    if [ -f "$lib" ] ; then
      unlink /usr/lib/$(echo $lib | cut -d '/' -f 5)
    fi
  done
}