#!/bin/bash

# Copyright (C) 2024 Pädagogisches Landesinstitut Rheinland-Pfalz
# Copyright (C) 2024 Daniel Teichmann <daniel.teichmann@das-netzwerkteam.de>
# Copyright (C) 2023 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.

# prerm script for debian-edu-router-plugin.content-filter

set -e

. /usr/share/debconf/confmodule || exit 255

# prepare debconf
export DC_PRIO_LOW="medium"
export DC_PRIO_HIGH="high"

if [ -e /etc/debian-edu/router.conf ]; then
	source /etc/debian-edu/router.conf
fi
PRODUCTNAME="${PRODUCTNAME:-"Debian Edu Router"}"
PRODUCTNAME_PLUGIN_SUFFIX="${PRODUCTNAME_PLUGIN_SUFFIX:-"Plugin"}"
PRODUCTNAME_PLUGIN="${PRODUCTNAME_PLUGIN:-"${PRODUCTNAME} ${PRODUCTNAME_PLUGIN_SUFFIX}: Content filter"}"
db_title "${PRODUCTNAME_PLUGIN}"

# summary of how this script can be called:
#        * <prerm> `remove'
#        * <old-prerm> `upgrade' <new-version>
#        * <new-prerm> `failed-upgrade' <old-version>
#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
#        * <deconfigured's-prerm> `deconfigure' `in-favour'
#          <package-being-installed> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

case "${1}" in
	'remove')
		echo "Removing blacklists via 'debian-edu-router_refresh-blacklists --purge-filterlists'..."
		debian-edu-router_refresh-blacklists --purge-filterlists
		;;
	'failed-upgrade'|'deconfigure')
		;;
	'upgrade')
		;;
	*)
		echo "postrm called with unknown argument '${1}'" >&2
		exit '1'
		;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

# Automatically added by dh_installsystemd/13.24.2
if [ -z "$DPKG_ROOT" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'e2guardian_d-e-r.service' 'squid_d-e-r.target' 'squid_d-e-r_acl_watcher.path' 'squid_d-e-r_acl_watcher.service' 'squid_d-e-r_refresh-blacklists.service' 'squid_d-e-r_refresh-blacklists.timer' 'squid_d-e-r_refresh-generated-ips.service' 'squid_d-e-r_refresh-generated-ips.timer' >/dev/null || true
fi
# End automatically added section


exit '0'