#!/bin/sh

set -e

pathfind() {
	OLDIFS="$IFS"
	IFS=:
	for p in $PATH; do
		if [ -x "$p/$*" ]; then
			IFS="$OLDIFS"
			return 0
		fi
	done
	IFS="$OLDIFS"
	return 1
}

case "${1}" in
	purge)
		if [ -e /usr/share/debconf/confmodule ]
		then
			. /usr/share/debconf/confmodule
			db_version 2.0

			db_get taler-systempeer/username
			_USERNAME="${RET:-taler}"

			db_get taler-systempeer/groupname
			_GROUPNAME="${RET:-taler}"
		else
			_USERNAME="taler"
			_GROUPNAME="taler"
		fi

		TALERDNS_GROUP="talerdns"

		if pathfind deluser
		then
			deluser --quiet --system ${_USERNAME} || true
		fi

		if pathfind delgroup
		then
			delgroup --quiet --system --only-if-empty ${_GROUPNAME} || true
			delgroup --quiet --system --only-if-empty ${TALERDNS_GROUP} || true
		fi

		rm -rf /var/log/taler/ /var/lib/taler /etc/default/taler
		;;

	remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)

		;;

	*)
		echo "postrm called with unknown argument \`${1}'" >&2
		exit 1
		;;
esac

#DEBHELPER#

exit 0