#!/bin/sh

export PATH=/sbin:/bin:/usr/sbin:/usr/bin:/mod/sbin:/mod/bin:/mod/usr/sbin:/mod/usr/bin
export LD_LIBRARY_PATH=/mod/lib:/mod/usr/lib

DAEMON=spindown

case "$1" in
		""|load|start|restart|status)
			if [ ! -r "/mod/etc/conf/$DAEMON.cfg" ]; then
				echo "Error[$DAEMON]: not configured" 1>&2
				exit 1
			fi

			. /mod/etc/conf/$DAEMON.cfg;
		;;
esac

checksysfs() {
	SYSFS="$(grep sysfs /proc/mounts | head -n 1 | awk '{print $2}')"
	if [ -z "$SYSFS" ]; then
		echo -n "Trying to mount sysfs..."
		mkdir -p /var/sys
		mount sysfs /var/sys -t sysfs
		exitval=$?
		if [ "$exitval" -eq 0 ]; then
			echo 'done.'
		else
			[ ! -d /sys ] && echo "failed (backup mountpoint not available)." && exit 1
			mount sysfs /sys -t sysfs
			exitval=$?
			if [ "$exitval" -eq 0 ]; then
				echo 'done.'
			else
				echo 'failed.'
				exit $exitval
			fi
		fi
	fi
}

start() {
	checksysfs
	echo -n "Starting $DAEMON..."

	$DAEMON $SPINDOWN_DEVICE $SPINDOWN_IDLETIME $SPINDOWN_MODE &
	exitval=$?
	sleep 1
	if [ -f /var/run/$DAEMON.$SPINDOWN_DEVICE.pid ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

stop() {
	echo -n "Stopping $DAEMON...("
	for I in $(ls /var/run/$DAEMON.*.pid); do
		kill $(cat $I)  > /dev/null 2>&1
		exitval=$?
		if [ "$exitval" -eq 0 ]; then
			echo -n 'v'
		else
			echo -n 'x'
		fi
	done
	echo ") done."
}


case "$1" in
	""|load)
		modreg cgi 'spindown' 'Disk Spindown'
		if [ "$SPINDOWN_ENABLED" != "yes" ]; then
			echo "Disk spindown is disabled" 1>&2
			exit 1
		fi
		start
		;;
	unload)
		stop
		modunreg cgi 'spindown'
		;;
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		stop
		sleep 1
		start
		;;
	status)
		if [ -f /var/run/$DAEMON.$SPINDOWN_DEVICE.pid ]; then
			echo 'running'
		else
			echo 'stopped'
		fi
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;

esac

exit 0