#!/bin/sh
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

stop_instance() {
	/etc/init.d/nut-server stop "$1"
}

shutdown_instance() {
	local cfg="$1"
	config_get driver "$cfg" driver "usbhid-ups"

	# Only FSD if killpower was indicated
	if [ -f /var/run/killpower ]; then
		/lib/nut/"${driver}" -a "$cfg" -k
	fi
}

do_fsd() {
	if [ -f /var/run/killpower ]; then
		# Only make FS readonly if we are doing an FSD
		mount -o remount,ro /overlay /overlay
		mount -o remount,ro / /

		. ${IPKG_INSTROOT}/lib/functions.sh

		if [ -f /etc/config/nut_server ]; then
			config_load nut_server

			# Can't FSD unless drivers are stopped
			config_foreach stop_instance driver
			# Driver will  wait 'offdelay' before shutting down
			config_foreach shutdown_instance driver
			# So this can happen
			rm -f /var/run/killpower
			poweroff
			# And just in case
			sleep 120
			# Uh-oh failed to poweroff UPS
			reboot -f
		else
			poweroff
		fi
	else
		poweroff
	fi
}

do_fsd
