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#! /bin/sh

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### BEGIN INIT INFO

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# Provides:          fixbot-nexus

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# Required-Start:    $remote_fs

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# Required-Stop:     $remote_fs

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# Default-Start:     2 3 4 5

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# Default-Stop:      0 1 6

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# Short-Description: FixBot Nexus component

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# Description:       Acts as the IRC bot, and provides an API server that other components may connect to 

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### END INIT INFO

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# Author: Tero Marttila <terom@fixme.fi>

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# Do NOT "set -e"

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# PATH should only include /usr/* if it runs after the mountnfs.sh script

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PATH=/sbin:/usr/sbin:/bin:/usr/bin

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# twisted plugin to run

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PLUGIN_NAME=fixbot-nexus

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PLUGIN_DOC="FixBot Nexus component"

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TWISTD_PIDFILE=/var/run/$PLUGIN_NAME.pid

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# custom arguments to twistd(1)

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TWISTD_ARGS=

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# custom arguments to fixbot, see `twistd fixbot_nexus --help`

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PLUGIN_ARGS=

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# the daemon we run is twistd

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DAEMON_NAME=twistd

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DAEMON=/usr/bin/$DAEMON_NAME

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# Exit if the package is not installed

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[ -x "$DAEMON" ] || exit 0

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# Read configuration variable file if it is present

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[ -r /etc/default/$PLUGIN_NAME ] && . /etc/default/$PLUGIN_NAME

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# what arguments we run with

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DAEMON_ARGS="--pidfile=$PIDFILE $TWISTD_ARGS $PLUGIN_NAME $PLUGIN_ARGS"

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# Load the VERBOSE setting and other rcS variables

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. /lib/init/vars.sh

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# Define LSB log_* functions.

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# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.

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. /lib/lsb/init-functions

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#

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# Function that starts the daemon/service

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#

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do_start()

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{

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	# Return

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	#   0 if daemon has been started

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	#   1 if daemon was already running

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	#   2 if daemon could not be started

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	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \

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		|| return 1

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	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \

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		$DAEMON_ARGS \

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		|| return 2

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	# Add code here, if necessary, that waits for the process to be ready

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	# to handle requests from services started subsequently which depend

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	# on this one.  As a last resort, sleep for some time.

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}

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#

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# Function that stops the daemon/service

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#

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do_stop()

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{

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	# Return

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	#   0 if daemon has been stopped

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	#   1 if daemon was already stopped

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	#   2 if daemon could not be stopped

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	#   other if a failure occurred

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	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $DAEMON_NAME

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	RETVAL="$?"

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	[ "$RETVAL" = 2 ] && return 2

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	# Wait for children to finish too if this is a daemon that forks

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	# and if the daemon is only ever run from this initscript.

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	# If the above conditions are not satisfied then add some other code

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	# that waits for the process to drop all resources that could be

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	# needed by services started subsequently.  A last resort is to

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	# sleep for some time.

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	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON

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	[ "$?" = 2 ] && return 2

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	# Many daemons don't delete their pidfiles when they exit.

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	rm -f $PIDFILE

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	return "$RETVAL"

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}

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#

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# Function that sends a SIGHUP to the daemon/service

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#

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do_reload() {

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	#

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	# If the daemon can reload its configuration without

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	# restarting (for example, when it is sent a SIGHUP),

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	# then implement that here.

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	#

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	start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $DAEMON_NAME

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	return 0

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}

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case "$1" in

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  start)

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	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $PLUGIN_DESC" "$PLUGIN_NAME"

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	do_start

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	case "$?" in

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		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;

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		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;

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	esac

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	;;

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  stop)

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	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $PLUGIN_DESC" "$PLUGIN_NAME"

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	do_stop

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	case "$?" in

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		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;

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		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;

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	esac

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	;;

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  #reload|force-reload)

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	#

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	# If do_reload() is not implemented then leave this commented out

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	# and leave 'force-reload' as an alias for 'restart'.

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	#

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	#log_daemon_msg "Reloading $DESC" "$NAME"

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	#do_reload

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	#log_end_msg $?

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	#;;

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  restart|force-reload)

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	#

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	# If the "reload" option is implemented then remove the

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	# 'force-reload' alias

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	#

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	log_daemon_msg "Restarting $PLUGIN_DESC" "$PLUGIN_NAME"

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	do_stop

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	case "$?" in

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	  0|1)

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		do_start

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		case "$?" in

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			0) log_end_msg 0 ;;

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			1) log_end_msg 1 ;; # Old process is still running

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			*) log_end_msg 1 ;; # Failed to start

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		esac

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		;;

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	  *)

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	  	# Failed to stop

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		log_end_msg 1

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		;;

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	esac

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	;;

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  *)

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	#echo "Usage: $0 {start|stop|restart|reload|force-reload}" >&2

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	echo "Usage: $0 {start|stop|restart|force-reload}" >&2

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	exit 3

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	;;

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esac

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: