#!/sbin/openrc-run
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

description='Signal the UPS to kill power in a power failure condition'

depend() {
	keyword -jail -lxc -openvz -prefix -uml -vserver -xenu -timeout
	need mount-ro
}

start() {
	local UPS_CTL UPS_POWERDOWN

	if [ -f /etc/killpower ] || [ -f /etc/nut/killpower ] ; then
		UPS_CTL=/sbin/upsdrvctl
		UPS_POWERDOWN="${UPS_CTL} shutdown"
	elif [ -f /etc/apcupsd/powerfail ] ; then
		UPS_CTL=/sbin/apcupsd
		UPS_POWERDOWN="${UPS_CTL} --killpower"
	else
		ewarn "UPS powerfail script scheduled, but no poweroff commands found."
		return 0
	fi

	if [ -f "${UPS_CTL}" ] && [ -x "${UPS_CTL}" ] ; then
		ebegin 'Signaling UPS to kill power'
		${UPS_POWERDOWN}
		eend $?

		ebegin 'Halt system and wait for the UPS to kill our power'
		/sbin/halt -id
		# If the sleep gets hit, something is wrong...
		# do NOT restart the system.
		while [ 1 ]; do sleep 60; done
	else
		ewarn "UPS powerfail script scheduled, and flags found, but ${UPS_CTL} missing."
	fi
}