#! /bin/sh


load_lirc_modules()
{
	 MODULES_MISSING=false

		for mod in $*; do
		 modprobe $mod 2> /dev/null || MODULES_MISSING=true
		done

	    if $MODULES_MISSING; then
		echo "Unable to load LIRC kernel modules. Verify your"
		echo "selected kernel modules in /etc/lirc/hardware.conf"
	    exit 0
	    fi
}

build_remote_args()
{
  REMOTE_ARGS="$*"

  #For remote only detection support, we need
  #both REMOTE_DEVICE and TRANSMITTER_DEVICE undefined
  if [ -z "$REMOTE_DEVICE" ] && [ -z "$TRANSMITTER_DEVICE" ] && [ -c $dev ]; then
    REMOTE_DEVICE="$dev"
  fi

  #If we have a REMOTE_DEVICE or REMOTE_DRIVER defined (either because no devices
  #were defined, OR if we explicitly did), then populate REMOTE_ARGS
  if [ ! -z "$REMOTE_DEVICE" ] || [ ! -z "$REMOTE_DRIVER" ]; then
    if [ -n "$REMOTE_DEVICE" ] && [ "$REMOTE_DEVICE" != "none" ]; then
      REMOTE_ARGS="--device=$REMOTE_DEVICE $REMOTE_ARGS"
    fi
    if [ -n "$REMOTE_DRIVER" ] && [ "$REMOTE_DRIVER" != "none" ]; then
      REMOTE_ARGS="--driver=$REMOTE_DRIVER $REMOTE_ARGS"
    fi

    #Now, if we ALSO have a transmitter defined, add some args
    #To make the first lircd listen up
    if [ ! -z "$TRANSMITTER_DEVICE" ] || [ ! -z "$TRANSMITTER_DRIVER" ]; then      
      REMOTE_ARGS="$REMOTE_ARGS --listen"
    fi
    REMOTE_ARGS="--output=$REMOTE_SOCKET.$$ $REMOTE_ARGS"
  fi
  echo $REMOTE_ARGS
}

in_kernel_support() {
	if [ -d /sys/class/rc ]; then
		for file in `find /sys/class/rc/*/ -name protocols`; do
			if [ "$1" = "disable" ]; then
				echo "lirc" > $file
			else
				echo "none" > $file
				for protocol in `cat $file`; do
					echo "+${protocol}" > $file
				done
			fi
		done
	fi
}

test -f /usr/sbin/lircd || exit 0
test -f /usr/sbin/lircmd || exit 0

START_LIRCMD=true
START_LIRCD=true
START_IREXEC=true

. /etc/init.d/rc.functions

if [ -f /etc/lirc/hardware.conf ];then
	. /etc/lirc/hardware.conf
fi

if [ ! -f /etc/lirc/lircd.conf ] || grep -q "^#UNCONFIGURED" /etc/lirc/lircd.conf; then
	if [ "$1" = "start" ]; then
		echo "No valid /etc/lirc/lircd.conf has been found."
		echo "Remote control support has been disabled."
		echo "Reconfigure LIRC or manually replace /etc/lirc/lircd.conf to enable."
	fi

	START_LIRCD=false
	START_LIRCMD=false
	START_IREXEC=false
fi

if [ ! -f /etc/lirc/lircmd.conf ] || grep -q "^#UNCONFIGURED" /etc/lirc/lircmd.conf; then
	START_LIRCMD=false
fi

if [ ! -f /etc/lirc/lircrc ] || grep -q "^#UNCONFIGURED" /etc/lirc/lircrc; then
	START_IREXEC=false
fi

#We need default socket locations
OLD_SOCKET="/dev/lircd"
if [ -z "$REMOTE_SOCKET" ]; then
	REMOTE_SOCKET="/var/run/lirc/lircd"
fi
if [ -z "$TRANSMITTER_SOCKET" ]; then
	TRANSMITTER_SOCKET="/var/run/lirc/lircd"
	#Now, if we ALSO have a remote defined,
	#change the default transmitter socket
	if [ ! -z "$REMOTE_DEVICE" ] || [ ! -z "$REMOTE_DRIVER" ]; then
		TRANSMITTER_SOCKET="${TRANSMITTER_SOCKET}1"
	fi
fi

case "$1" in
	start)
		if [ "$LOAD_MODULES" = "true" ] && [ "$START_LIRCD" = "true" ]; then
			load_lirc_modules $2 $REMOTE_MODULES $TRANSMITTER_MODULES $MODULES
			in_kernel_support "disable"
		fi

		if [ "$START_LIRCD" = "true" ]; then
			echo "Starting remote control daemon(s) : LIRC "
			REMOTE_LIRCD_ARGS=`build_remote_args $REMOTE_LIRCD_ARGS`
			TRANSMITTER_LIRCD_ARGS=`build_transmitter_args $TRANSMITTER_LIRCD_ARGS`

			#if we have a remote defined, it is primary process
			if [ ! -z "$REMOTE_LIRCD_ARGS" ]; then
			    while [ ! -e /var/run/lirc/lircd.pid ]; do sleep 1; done
			    exec /usr/bin/python /usr/bin/lircd2uinput &
				start-stop-daemon --start --quiet --oknodo --exec /usr/sbin/lircd -- $REMOTE_LIRCD_ARGS < /dev/null

				#now if we additionally have a transmitter defined, it is secondary process
				if [ ! -z "$TRANSMITTER_LIRCD_ARGS" ]; then
					/usr/sbin/lircd $TRANSMITTER_LIRCD_ARGS < /dev/null
					if [ -S "$TRANSMITTER_SOCKET" ]; then
						rm -f ${OLD_SOCKET}1 && ln -s $TRANSMITTER_SOCKET ${OLD_SOCKET}1
					fi 
				fi
			elif [ ! -z "$TRANSMITTER_LIRCD_ARGS" ]; then
				start-stop-daemon --start --quiet --oknodo --exec /usr/sbin/lircd -- $TRANSMITTER_LIRCD_ARGS < /dev/null
				if [ -S "$TRANSMITTER_SOCKET" -a "$OLD_SOCKET" != "$TRANSMITTER_SOCKET" ]; then
					rm -f $OLD_SOCKET && ln -s $TRANSMITTER_SOCKET $OLD_SOCKET
				fi
			fi
		fi

		if [ "$START_LIRCMD" = "true" ]; then
			echo "Starting remote control mouse daemon : LIRCMD "
			start-stop-daemon --start --quiet --oknodo --exec /usr/sbin/lircmd < /dev/null
		fi
		check_status

		if [ "$START_IREXEC" = "true" ]; then
			echo "Starting execution daemon: irexec"
			start-stop-daemon --start --quiet --oknodo --exec /usr/bin/irexec -- -d /etc/lirc/lircrc < /dev/null
		fi
		check_status
		;;
	stop)
		in_kernel_support "enable"
		if [ "$START_IREXEC" = "true" ]; then
			echo "Stopping execution daemon: irexec"
			start-stop-daemon --stop --quiet --exec /usr/bin/irexec
		fi
		check_status

		if [ "$START_LIRCMD" = "true" ]; then
			echo "Stopping remote control mouse daemon: LIRCMD"
			start-stop-daemon --stop --quiet --exec /usr/sbin/lircmd
		fi
		check_status

		if [ "$START_LIRCD" = "true" ]; then
			echo "Stopping remote control daemon(s): LIRC"
			start-stop-daemon --stop --quiet --exec /usr/sbin/lircd
			[ -h "$OLD_SOCKET" ] && rm -f $OLD_SOCKET
			[ -h "${OLD_SOCKET}1" ] && rm -f ${OLD_SOCKET}1
		fi
		check_status
		;;
	reload|force-reload)
		if [ "$START_IREXEC" = "true" ]; then
			start-stop-daemon --stop --quiet --signal 1 --exec /usr/bin/irexec
		fi
		check_status

		if [ "$START_LIRCD" = "true" ]; then
			start-stop-daemon --stop --quiet --signal 1 --exec /usr/sbin/lircd
		fi
		check_status

		if [ "$START_LIRCMD" = "true" ]; then
			start-stop-daemon --stop --quiet --signal 1 --exec /usr/sbin/lircmd
		fi
		check_status
		;;
	restart)
		$0 stop
		#passes parameter $2 which is possibly our udev paramater
		$0 start $2
		;;
	init)
		resume=1
		halt=1
		after=eventlircd
		;;
	*)
		echo "Usage $0 {start|stop|reload|restart|force-reload}" >&2
		exit 1
esac