#!/bin/bash
### BEGIN INIT INFO
# Provides:          sminecraft-server4
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start daemon at boot time
# Description:       Enable service provided by daemon.
### END INIT INFO
# /home/minecraft
# version 0.3.2 2011-01-27 (YYYY-MM-DD)
# version editer by pazpop - v2


#Settings
SERVICE='spigot.jar'
USERNAME="minecraft"
MCPATH='/home/pvpfac'
## INVOCATION='java -Xms8G -Xmx8G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=7 -XX:+AggressiveOpts -jar craftbukkit.jar nogui'
INVOCATION='java -Xms9G -Xmx9G -jar spigot.jar nogui'
BACKUPPATH='/home/backup/pvpfac'

ME=`whoami`
as_user() {
  if [ "$ME" == "$USERNAME" ] ; then
	bash -c "$1"
  else
	su - $USERNAME -c "$1"
  fi
}

mc_start() {
  if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
  then
	echo "Tried to start but $SERVICE was already running!"
  else
	echo "$SERVICE was not running... starting."
	cd $MCPATH
	as_user "cd $MCPATH && screen -dmSL minecraft $INVOCATION"
	sleep 7
	if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
	then
	  echo "$SERVICE is now running."
	else
	  echo "Could not start $SERVICE."
	fi
  fi
}

mc_saveoff() {
		if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
		then
				echo "$SERVICE is running... suspending saves"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"say Sauvegarde en cours...\"\015'"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-off\"\015'"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
				sync
				sleep 10
		else
				echo "$SERVICE was not running. Not suspending saves."
		fi
}

mc_saveon() {
		if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
		then
				echo "$SERVICE is running... re-enabling saves"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-on\"\015'"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"say Sauvegarde terminée!\"\015'"
		else
				echo "$SERVICE was not running. Not resuming saves."
		fi
}

mc_stop() {
		if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
		then
				echo "$SERVICE is running... stopping."
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"say Arrêt du serveur dans 10 secondes!\"\015'"
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
				sleep 10
				as_user "screen -p 0 -S minecraft -X eval 'stuff \"stop\"\015'"
				sleep 7
		else
				echo "$SERVICE was not running."
		fi
		if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
		then
				echo "$SERVICE could not be shut down... still running."
		else
				echo "$SERVICE is shut down."
		fi
}


mc_backup() {
   echo "Sauvegarde du world en cours..."
   if [ -d $BACKUPPATH/world_`date "+%m.%d.%Y"` ]
   then
	 for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
	 do
	   if [ -d $BACKUPPATH/world_`date "+%m.%d.%Y"`-$i ]
	   then
		 continue
	   else
		 as_user "cd $MCPATH && cp -r world $BACKUPPATH/world_`date "+%m.%d.%Y"`-$i"
		 break
	   fi
	 done
   else
	 as_user "cd $MCPATH && cp -r world $BACKUPPATH/world_`date "+%m.%d.%Y"`"
	 echo "... sauvegarde du world OK"
   fi
   echo "Sauvegarde du repertoire des plugins serveur..."
   if [ -d $BACKUPPATH/plugins_`date "+%m.%d.%Y"` ]
   then
	 for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
	 do
	   if [ -d $BACKUPPATH/plugins_`date "+%m.%d.%Y".tar`-$i ]
	   then
		 continue
	   else
		 as_user "cd $MCPATH && cp -r plugins $BACKUPPATH/plugins_`date "+%m.%d.%Y"`-$i"
#        as_user "tar -cf $BACKUPPATH/plugins_`date "+%m.%d.%Y"`.tar-$i  --exclude 'dynmap/*' $MCPATH/plugins/"
		 break
	   fi
	 done
   else
	 as_user "cd $MCPATH && cp -r plugins $BACKUPPATH/plugins_`date "+%m.%d.%Y"`"
	 echo "... sauvegarde des plugins OK"
   fi
   echo "Backup complete"
   echo "`date`"
}


#Start-Stop here
case "$1" in
  start)
	mc_start
	;;
  stop)
	mc_stop
	;;
  restart)
	mc_stop
	mc_start
	;;
  backup)
	mc_saveoff
	mc_backup
	mc_saveon
	;;
  status)
	if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
	then
	  echo "$SERVICE is running."
	else
	  echo "$SERVICE is not running."
	fi
	;;

  *)
  echo "Usage: /etc/init.d/minecraft {start|stop|backup|status|restart}"
  exit 1
  ;;
esac

exit 0