#! /bin/sh
#
# ups: Starts the Network UPS Tools
#
# chkconfig: - 26 74
# description: Network UPS Tools is a collection of programs which provide a common \
#		interface for monitoring and administering UPS hardware.
# processname: upsd
# config: /usr/local/ups/etc
# config: /etc/rc.ups
#
### BEGIN INIT INFO
# Provides: ups
# Required-Start: $syslog $network $named
# Required-Stop: $local_fs
# Default-Stop: 0 1 6
# Short-Description: Starts the Network UPS tools
# Description: Network UPS Tools is a collection of programs which provide a common \
#		interface for monitoring and administering UPS hardware. 
### END INIT INFO

success() {
	echo OK
}

failure() {
	echo FAILED
}

# Resolve what processes should run
SERVER="no"
CLIENT="no"

NUT_DIR="@prefix@"
NUT_SBIN_DIR="${NUT_DIR}/sbin"
NUT_LIB_DIR="${NUT_DIR}/lib"
NUT_RUN_DIR="@PIDPATH@/nut"
CONFIG="@CONFPATH@/nut.conf"
NUTUSER="@RUN_AS_USER@"
NUTGROUP="@RUN_AS_GROUP@"
NUT_VAR_LOCK="/var/locks/ups"

if [ -f "$CONFIG" ] ; then
	. "$CONFIG"

	case "$MODE" in
		standalone|netserver)
			SERVER="yes"
			;;
	esac

	rpm -q nut-client >/dev/null 2>&1 && CLIENT="yes"
fi

do_start() {
	RETVAL=0

	if [ ! -d "$NUT_RUN_DIR" ]; then
		mkdir -p "$NUT_RUN_DIR" && \
		chown "root:$NUTGROUP" "$NUT_RUN_DIR" && \
		chmod 770 "$NUT_RUN_DIR"
		RETVAL=$?
	fi

	if [ "$SERVER" = "yes" ]; then
		echo "Starting UPS driver controller: \c"
		LD_LIBRARY_PATH="${NUT_LIB_DIR}:$LD_LIBRARY_PATH" "${NUT_SBIN_DIR}"/upsdrvctl start >/dev/null 2>&1 && success || { RETVAL=$?; failure; }

		echo "Starting upsd: \c"
		LD_LIBRARY_PATH="${NUT_LIB_DIR}:$LD_LIBRARY_PATH" "${NUT_SBIN_DIR}"/upsd $UPSD_OPTIONS >/dev/null 2>&1 && success || { RETVAL=$?; failure; }
	fi

	if [ "$CLIENT" = "yes" ]; then
		echo "Starting UPS monitor: \c"
		LD_LIBRARY_PATH="${NUT_LIB_DIR}:$LD_LIBRARY_PATH" "${NUT_SBIN_DIR}"/upsmon >/dev/null 2>&1 && success || { RETVAL=$?; failure; }
	fi

	[ "$RETVAL" = 0 ] && touch "${NUT_VAR_LOCK}"
	return $RETVAL
}

do_stop() {
	RETVAL=0
	if test -e "${NUT_RUN_DIR}"/upsmon.pid; then
		echo "Stopping UPS monitor: \c"
		PID="`cat "${NUT_RUN_DIR}"/upsmon.pid`"
		kill -15 $PID && success || { RETVAL=$?; failure; }
		rm "${NUT_RUN_DIR}"/upsmon.pid
	fi

	if [ "$SERVER" = "yes" ]; then
		if test -e "${NUT_RUN_DIR}"/upsd.pid; then
			echo "Stopping upsd: \c"
			PID="`cat "${NUT_RUN_DIR}"/upsd.pid`"
			kill -15 $PID && success || { RETVAL=$?; failure; }
			rm "${NUT_RUN_DIR}"/upsd.pid
		fi

		echo "Shutting down UPS driver controller: \c"
		"${NUT_SBIN_DIR}"/upsdrvctl stop > /dev/null 2>&1 && success || { RETVAL=$?; failure; }
	fi
	[ "$RETVAL" = 0 ] && rm -f "${NUT_VAR_LOCK}"
	return $RETVAL
}

do_restart() {
	do_stop
	waitmore=5
	while [ -n "$(ls "${NUT_RUN_DIR}"/)" -a $waitmore -ge 1 ]
	do
	  sleep 1
	  waitmore="$(expr $waitmore - 1)"
	done
	do_start
}

do_reload() {
	# FIXME: upsd and upsmon always return 0
	# => can't tell if reload was successful
	RETVAL=0
	if [ "$SERVER" = "yes" ]; then
		echo "Reloading upsd"
		LD_LIBRARY_PATH="${NUT_LIB_DIR}:$LD_LIBRARY_PATH" "${NUT_SBIN_DIR}"/upsd -c reload && success || { RETVAL=$?; failure; }
	fi

	echo "Reloading upsmon"
	LD_LIBRARY_PATH="${NUT_LIB_DIR}:$LD_LIBRARY_PATH" "${NUT_SBIN_DIR}"/upsmon -c reload && success || { RETVAL=$?; failure; }
	return $RETVAL
}

# See how we are called.
case "$1" in
	start)
		do_start ;;

	stop)
		do_stop ;;

	restart)
		do_restart ;;

	try-restart)
		[ -f "${NUT_VAR_LOCK}" ] && do_restart || true
		;;

	reload)
		do_reload ;;

	force-reload)
		do_restart ;;

	status)
		if [ "$SERVER" = "yes" ]; then
			if test -f "${NUT_VAR_LOCK}"; then
				echo "upsd is running with PID" `cat "${NUT_RUN_DIR}"/upsd.pid`
			fi
		fi

		if test -e "${NUT_RUN_DIR}"/upsmon.pid; then
			echo "upsmon is running with PID" `cat "${NUT_RUN_DIR}"/upsmon.pid`
		elif rpm -q nut-client >/dev/null 2>&1; then
			echo "upsmon isn't running"
		fi
		;;

	*)
		echo "Usage: $0 {start|stop|restart|try-restart|reload|force-reload|status}"
		RETVAL=3
esac

exit $RETVAL