#!/usr/bin/openrc-run
# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

FCRON_INSTANCE="${SVCNAME##*.}"
FCRON_OPTS=${FCRON_OPTS:-""}

if [ -n "${FCRON_INSTANCE}" ] && [ "${SVCNAME}" != "fcron" ]; then
	FCRON_CONFIGFILE="/etc/fcron/fcron.${FCRON_INSTANCE}.conf"
else
	FCRON_CONFIGFILE="/etc/fcron/fcron.conf"
fi

getconfig() {
	local key="$1"
	local value_default="$2"
	local value=

	if service_started; then
		value="$(service_get_value "${key}")"
	fi

	if [ -z "${value}" ] && [ -r "${FCRON_CONFIGFILE}" ]; then
		value="$(sed -n -e 's:^'"${key}"'[ \t]*=[ \t]*::p' "${FCRON_CONFIGFILE}")"
	fi

	if [ -z "${value}" ]; then
		# Value not explicitly set in the configfile or configfile does not exist
		# or is not readable
		echo "${value_default}"
	else
		echo "${value}"
	fi

	return 0
}

depend() {
	config "${FCRON_CONFIGFILE}"

	use clock logger
	need hostname

	# provide the cron service if we are the main instance
	[ "${SVCNAME}" = "fcron" ] && provide cron
}


command="/usr/bin/fcron"
command_args="${FCRON_OPTS} -c \"${FCRON_CONFIGFILE}\""
start_stop_daemon_args=${FCRON_SSDARGS:-"--wait 1000"}
pidfile="$(getconfig pidfile /run/fcron.pid)"
fcrontabs="$(getconfig fcrontabs /var/spool/fcron)"
fifofile="$(getconfig fifofile /run/fcron.fifo)"
required_files="${FCRON_CONFIGFILE}"

extra_started_commands="reload"

reload() {
	 start-stop-daemon --signal HUP --pidfile "${pidfile}"
}

start_pre() {
	if [ "${SVCNAME}" != "fcron" ]; then
		local _has_invalid_instance_cfg=0

		if [ "${pidfile}" = "/run/fcron.pid" ]; then
			eerror "You cannot use the same pidfile like the default instance!"
			eerror "Please adjust your 'pidfile' setting in '${FCRON_CONFIGFILE}'."
			_has_invalid_instance_cfg=1
		fi

		if [ "${fcrontabs}" = "/var/spool/fcron" ]; then
			eerror "You cannot use the same fcrontabs location like the default instance!"
			eerror "Please adjust your 'fcrontabs' setting in '${FCRON_CONFIGFILE}'."
			_has_invalid_instance_cfg=1
		fi

		if [ "${fifofile}" = "/run/fcron.fifo" ]; then
			eerror "You cannot use the same fifo file like the default instance!"
			eerror "Please adjust your 'fifofile' setting in '${FCRON_CONFIGFILE}'."
			_has_invalid_instance_cfg=1
		fi

		[ ${_has_invalid_instance_cfg} -ne 0 ] && return 1
	fi

	checkpath --file "${FCRON_CONFIGFILE}" --owner root:fcron --mode 0640

	if [ ! -d "${fcrontabs}" ]; then
		ebegin "Creating missing spooldir '${fcrontabs}'"
		${command} --newspooldir "${fcrontabs}"
		eend $?
	fi
}

start_post() {
	service_set_value fcrontabs "${fcrontabs}"
	service_set_value fifofile "${fifofile}"
}
