#!/bin/sh -e

handle_start_failure () {
# The nut client part (upsmon) must run in all cases except when MODE in
# /etc/nut/nut.conf is set to "none" or not set at all.
  [ -r /etc/nut/nut.conf ] && . /etc/nut/nut.conf
  if [ -d /run/systemd/system ] && [ "$MODE" = "none" -o -z "$MODE" ]; then
    return 0
  else
    return 1
  fi
}

case "$1" in

  configure)

    # make sure the nut user exists and has correct memberships
    if ! getent group nut >/dev/null; then
      addgroup --quiet --system nut
    fi
    if ! getent passwd nut >/dev/null; then
      adduser --quiet --system --ingroup nut --home /var/lib/nut --no-create-home nut
    elif ! groups nut | grep -qw nut; then
      adduser nut nut
    fi
# for Ubuntu, while waiting for a proper debconf
#    if ! groups nut | grep -qw dialout; then
#	adduser nut dialout
#    fi

    # make sure that conffiles are secured and have the correct ownerships
    # on first install
    if [ -z "$2" ] ; then
        if [ -d /etc/nut/ ] ; then
          chown root:nut /etc/nut/
        fi
        for file in nut.conf upsmon.conf upssched.conf ; do
            if [ -f /etc/nut/$file ] ; then
                chown root:nut /etc/nut/$file
                chmod 640 /etc/nut/$file
            fi
        done
    fi

    # make sure that /var/run/nut exists and has the correct ownerships
    if [ ! -d /var/run/nut ] ; then
        mkdir -p /var/run/nut
    fi
    if [ -d /var/run/nut ] ; then
        chown root:nut /var/run/nut
        chmod 770 /var/run/nut
        if which restorecon >/dev/null 2>&1; then
	    restorecon /var/run/nut
        fi
    fi

    if dpkg --compare-versions "$2" le "2.6.4-2~" &&
      [ -f /etc/init.d/nut ] ; then
        if [ "`md5sum /etc/init.d/nut | cut -d ' ' -f 1`" = 72f1dbc6b92cb4407f26605d05b12681 ]; then
            rm -f /etc/init.d/nut
        else
            mv /etc/init.d/nut /etc/init.d/nut.dpkg-old
        fi
        update-rc.d nut remove >/dev/null
    fi
    ;;

  abort-upgrade)
    # do nothing
    ;;

  abort-remove)
    # do nothing
    ;;

  abort-deconfigure)
    # do nothing
    ;;

  *)
    echo "$0: incorrect arguments: $*" >&2
    exit 1
    ;;

esac

# Automatically added by dh_systemd_enable/11.3.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# This will only remove masks created by d-s-h on package removal.
	deb-systemd-helper unmask 'nut-monitor.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'nut-monitor.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'nut-monitor.service' >/dev/null || true
	else
		# Update the statefile to add new symlinks (if any), which need to be
		# cleaned up on purge. Also remove old symlinks.
		deb-systemd-helper update-state 'nut-monitor.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/11.3.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# In case this system is running systemd, we need to ensure that all
	# necessary tmpfiles (if any) are created before starting.
	if [ -d /run/systemd/system ] ; then
		systemd-tmpfiles --create nut-client.conf >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installdeb/11.3.2
dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/nut 2.7.1-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/11.3.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/nut-client" ]; then
		update-rc.d nut-client defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d nut-client $_dh_action || handle_start_failure
	fi
fi
# End automatically added section


exit 0