#!/bin/sh

# Copyright 2016 Marcel Saegebarth <marc@mos6581.de>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
RUN_USER=plex
 
plexmediaserver_start() {
  PIDOF=$(pidof "Plex Media Server")

  if [ -z "$PIDOF" ]; then
  echo "Starting plexmediaserver..."
  /bin/su -s /bin/sh -l $RUN_USER -c '/usr/bin/start_pms &> /dev/null &'
  else
    echo "plexmediaserver is already active (PID: $PIDOF)."
    exit 1
  fi
}
 
plexmediaserver_stop() {
  PIDOF=$(pidof "Plex Media Server")
  # plugins may still running when stopping plexmediaserver on its startup
  # process
  PGREP_PLUGINS=$(pgrep -f "Plex Plug-in")

  if [ -z "$PIDOF" ] && [ -z "$PGREP_PLUGINS" ]; then
    echo "plexmediaserver is not running..."
    exit 1
  else
    echo -n "Stopping plexmediaserver..."

    if [ -n "$PIDOF" ]; then
      kill -9 $PIDOF
    fi

    if [ -n "$PGREP_PLUGINS" ]; then
      for i in "$PGREP_PLUGINS"; do
        kill -9 $i
      done
    fi

    echo "done"
  fi
}

plexmediaserver_restart() {
  plexmediaserver_stop
  sleep 3
  plexmediaserver_start
}
 
case "$1" in
    start) plexmediaserver_start   ;;
     stop) plexmediaserver_stop    ;;
  restart) plexmediaserver_restart ;;
        *) echo "USAGE: $0 start|stop|restart"
           exit 1 ;;
esac