#!/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/>.
#

# shellcheck source=cdist/conf/type/__uci/files/functions.sh
. "${__type:?}/files/functions.sh"

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

config=${__object_id:?}
uci_validate_tuple "${config}"


case ${state_should}
in
	(present)
		if in_list "${state_is}" 'present' 'rearranged'
		then
			# NOTE: order is ignored so rearranged is also fine.
			exit 0
		fi

		# Determine type
		type=$(cat "${__object:?}/parameter/type" 2>/dev/null || true)
		case ${type}
		in
			(option|list) ;;
			('')
				# Guess type by the number of values
				test "$(wc -l "${__object:?}/parameter/value")" -gt 1 \
					 && type=list \
					 || type=option
				;;
			(*)
				printf 'Invalid --type: %s\n' "${type}" >&2
				exit 1
				;;
		esac

		case ${type}
		in
			(list)
				printf 'set_list %s\n' "${config}" >>"${__messages_out:?}"

				if test "${state_is}" != 'absent'
				then
					uci_cmd delete "${config}"
				fi

				while read -r value
				do
					uci_cmd add_list "${config}"="${value}"
				done <"${__object:?}/parameter/value"
				;;
			(option)
				printf 'set %s\n' "${config}" >>"${__messages_out:?}"

				value=$(cat "${__object:?}/parameter/value")
				uci_cmd set "${config}"="${value}"
				;;
		esac
		;;
	(absent)
		if in_list "${state_is}" 'absent'
		then
			exit 0
		fi

		printf 'delete %s\n' "${config}" >>"${__messages_out:?}"
		uci_cmd delete "${config}"
		;;
	(*)
		printf 'Invalid --state: %s\n' "${state_should}" >&2
		exit 1
		;;
esac

if test -s "${__object:?}/files/uci_batch.txt"
then
	cat "${__type:?}/files/uci_apply.sh"
	printf "uci_apply <<'EOF'\n"
	cat "${__object:?}/files/uci_batch.txt"
	printf '\nEOF\n'
fi