#!/bin/sh
# {{ ansible_managed }}

### BEGIN INIT INFO
# Provides:          captions
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts captioning monitor
# Description:       starts captioning monitor using start-stop-daemon
### END INIT INFO

PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
USER="{{ emacsconf_user }}"
GROUP="{{ emacsconf_group }}"
DESC="EmacsConf captions"
NAME="captions"
WORKDIR="{{ emacsconf_caption_dir }}"

set -e

. /lib/lsb/init-functions

start() {
  echo "Starting $DESC... "
  
	start-stop-daemon --start --chuid "$USER:$GROUP" -d $WORKDIR --background --make-pidfile --pidfile /var/run/$NAME.pid --exec "$WORKDIR/inotify-process-captions.sh > /var/log/$NAME.log" || true
  echo "done"
}

#We need this function to ensure the whole process tree will be killed
killtree() {
    local _pid=$1
    local _sig=${2-TERM}
    for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
        killtree ${_child} ${_sig}
    done
    kill -${_sig} ${_pid}
}

stop() {
  echo "Stopping $DESC... "
  if test -f /var/run/$NAME.pid; then
    while test -d /proc/$(cat /var/run/$NAME.pid); do
      killtree $(cat /var/run/$NAME.pid) 15
      sleep 0.5
    done
    rm /var/run/$NAME.pid
  fi
  echo "done"
}

status() {
  status_of_proc -p /var/run/$NAME.pid "" "$NAME" && exit 0 || exit $?
}

case "$1" in
  start)
	  start
	  ;;
  stop)
    stop
	  ;;
  restart)
	  stop
	  start
	  ;;
  status)
	  status
	  ;;
  *)
	  echo "Usage: $NAME {start|stop|restart|status}" >&2
	  exit 1
	  ;;
esac

exit 0