#!/bin/sh
. /etc/init.d/functions

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DAEMON=/usr/bin/Starter
NAME=tango-starter
DESC="Tango Control System Starter"
PIDFILE=/var/run/$NAME.pid

USER=tango
GROUP=tango
INSTANCE=`hostname`

[ -x "$DAEMON" ] || { failure; echo " $DAEMON executable not found."; exit 1; }
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

check_database()
{
	# Ping network seems to be broken (hangs forever)
	#tango_admin --ping-network 40 || return 1
	tango_admin --ping-database 6 || return 1
}

check_and_register_instance()
{
	tango_admin --check-device tango/admin/$INSTANCE || \
	tango_admin --add-server Starter/$INSTANCE Starter tango/admin/$INSTANCE || return 1
}

do_start()
{
	echo "Starting $DESC..."
	check_database
	[ "$?" -eq "1" ] && { failure; echo " Database ping failed."; exit 1; }
	passed; echo " Database ping OK."
	check_and_register_instance
	[ "$?" -eq "1" ] && { failure; echo " Could not register Starter instance $INSTANCE."; exit 1; }
	passed; echo " Starter instance OK.";
	start-stop-daemon -S -x $DAEMON -c $USER:$GROUP -p $PIDFILE -m -b -- $INSTANCE
	success; echo " $DESC started."
}

do_stop()
{
	echo "Stopping $DESC..."
	start-stop-daemon -K -x $DAEMON -p $PIDFILE
	success; echo " $DESC stopped."
}

case "$1" in
	start)
		do_start
		;;
	stop)
		do_stop
		;;
	status)
		status $DAEMON
		;;
	reload)
		echo "Reloading $DESC..."
		start-stop-daemon -K -s 1 -x $DAEMON -p $PIDFILE
		success; echo " $DESC reloaded."
		;;
	restart|force-reload)
		echo "Restarting $DESC..."
		do_stop
		sleep 5
		do_start
		success; echo " $DESC restarted."
		;;
	*)
		N=/etc/init.d/$NAME
		echo "Usage: $N {start|stop|status|reload|restart|force-reload}" >&2
		exit 1
		;;
esac

exit 0