post_install() {
  systemd-sysusers sickgear.conf
  systemd-tmpfiles --create sickgear.conf

  systemctl daemon-reload &> /dev/null

  if [ ! -d /opt/sickgear/data ]; then
    mkdir -p -m 755 /opt/sickgear/data &> /dev/null

cat << 'EOM'

==> In order to start SickGear, you must issue the following command:

  systemctl start sickgear.service

==> To have SickGear start automatically on system startup and after
==> version upgrades, also issue the following command:

  systemctl enable sickgear.service

==> Once started, SickGear can be accessed by navigating your browser to:

  http://localhost:8081/

EOM
  fi

  chown -R sickgear:sickgear /opt/sickgear &> /dev/null
}

pre_upgrade() {
  if systemctl is-active sickgear.service &> /dev/null; then
    systemctl stop sickgear.service &> /dev/null
  fi
}

post_upgrade() {
  post_install

  if systemctl is-enabled sickgear.service &> /dev/null; then
    systemctl start sickgear.service
  fi
}

pre_remove() {
  pre_upgrade

  if systemctl is-enabled sickgear.service &> /dev/null; then
    systemctl disable sickgear.service &> /dev/null
  fi
}

post_remove() {
  # Clean up leftovers (cached python files)
  if [ -d /opt/sickgear/app ]; then
    rm -fR /opt/sickgear/app &> /dev/null
  fi

  if ! rmdir /opt/sickgear/data &> /dev/null; then
cat << 'EOM'

==> Data directory has not been removed since it contains files.
==> If you no longer want your show data, you may removing it by issuing
==> the following command as root:

  rm -rf /opt/sickgear

EOM
  fi
}