#!/bin/sh -e
#
# 2020 Dennis Camera (dennis.camera@ssrq-sds-fds.ch)
#
# This file is part of cdist.
#
# cdist 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 3 of the License, or
# (at your option) any later version.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#

drop_awk_comments() { sed '/^[[:blank:]]*#.*$/d;/^$/d' "$@"; }

state_is=$(cat "${__object}/explorer/state")
state_should=$(cat "${__object}/parameter/state")

server=$__object_id
login=$(cat "${__object}/parameter/login")


auth_conf=$(cat "${__object}/explorer/auth_conf")
test -n "${auth_conf}" || {
	echo 'Cannot determine path of dma auth.conf' >&2
	exit 1
}

if test "${state_is}" = "${state_should}"
then
	# state is as it should
	exit 0
fi

case $state_should
in
	(present)
		test -n "${login}" || { echo '--login must be non-empty' >&2; exit 1; }

		if test "${state_is}" = 'absent'
		then
			printf 'add authuser %s on %s\n' "${login}" "${server}" >>"${__messages_out}"
		else
			printf 'set authuser %s on %s\n' "${login}" "${server}" >>"${__messages_out}"
		fi
		;;
	(absent)
		printf 'delete authuser %s on %s\n' "${login}" "${server}" >>"${__messages_out}"
		;;
	(*)
		printf 'Invalid --state: %s.\n' "${state_should}" >&2
		printf 'Acceptable values are: present, absent.\n' >&2
		exit 1
		;;
esac


cat <<EOF
test -f "${auth_conf}" || touch "${auth_conf}"

awk '$(drop_awk_comments "${__type}/files/update_dma_auth.awk")' <'${auth_conf}' >'${auth_conf}.tmp' \
&& cat '${auth_conf}.tmp' >'${auth_conf}'
rm -f '${auth_conf}.tmp'
EOF