#! /bin/sh
### BEGIN INIT INFO
# Provides:          kodi
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: XBMC media centre
# Description:       Starts the XBMC media centre in standalone mode
### END INIT INFO

# Author: Michael Gorven <michael@gorven.za.net>

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="media centre"
NAME=kodi
STARTAS=/usr/bin/kodi-standalone
DAEMON=/bin/sh
DAEMON_ARGS=""
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
GEOMETRY=/var/run/kodi.fbset

# Defaults
ENABLED=1
USER=pi
NICE=0

# Exit if the package is not installed
[ -x "$STARTAS" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Backwards compatibility with previous package name
[ -r /etc/default/xbmc ] && . /etc/default/xbmc

# Exit if service is not enabled
[ "$ENABLED" = "1" ] || exit 0

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	fbset --show | grep geometry | cut -d' ' -f 6- > $GEOMETRY
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	start-stop-daemon --start --quiet --pidfile $PIDFILE --user $USER --exec $DAEMON --startas $STARTAS --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --pidfile $PIDFILE --nicelevel $NICE --chuid $USER --background --make-pidfile --exec $DAEMON --startas $STARTAS -- \
		$DAEMON_ARGS \
		|| return 2
	# Add code here, if necessary, that waits for the process to be ready
	# to handle requests from services started subsequently which depend
	# on this one.  As a last resort, sleep for some time.
	sleep 10
	start-stop-daemon --start --quiet --pidfile $PIDFILE --user $USER --exec $DAEMON --startas $STARTAS --test > /dev/null \
		|| return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --user $USER --exec $DAEMON --startas $STARTAS

	# Kodi doesn't actually handle signals, so we have to send an RPC request to ask it to exit
	if [ -x /usr/bin/wget ]; then
		wget --post-data '{"jsonrpc": "2.0", "method": "Application.Quit", "params": [], "id": 0}' --header 'Content-Type: application/json' -O /dev/null --quiet http://localhost:8080/jsonrpc
	fi
	# Wait for children to finish too if this is a daemon that forks
	# and if the daemon is only ever run from this initscript.
	# If the above conditions are not satisfied then add some other code
	# that waits for the process to drop all resources that could be
	# needed by services started subsequently.  A last resort is to
	# sleep for some time.
	start-stop-daemon --stop --quiet --retry=0/30/KILL/5 --user $USER --name $NAME.bin
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2

	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE

	# Try to fix the display
	VT="$(fgconsole)"
	if [ "$VT" ]; then
		chvt 7
		chvt "$VT"
	fi

	if [ -e $GEOMETRY ]; then
		fbset --geometry $(cat $GEOMETRY)
	fi

	return "$RETVAL"
}

case "$1" in
  start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
  status)
	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
	;;
  restart|force-reload)
	#
	# If the "reload" option is implemented then remove the
	# 'force-reload' alias
	#
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
		# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac

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