#!/bin/bash

ARGS=""
JARNAME="minecraft_server.jar"

bashargs=( "$@" )
for (( argindex=0; ((argindex<$#)); argindex++ )) ; do
	arg=${bashargs[$argindex]}
	((argindex++))
	param=${bashargs[$argindex]}
	if [[ $param == \"* ]] ; then
		until [[ $param == *\" ]] ; do
			((argindex++))
			param="$param"" "${bashargs[$argindex]}
		done
	fi
	case "$arg" in
	 "-IP")
		IP="$param" ;;
	 "-PORT")
		PORT="$param" ;;
	 "-PLAYER")
		PLAYER="$param" ;;
	 "-JAR")
		JARNAME="$param" ;;
	 "-RAM")
		RAM="$param" ;;
	 "-ARGS")
		RAWARGS="$param"
		TEMPARGS="${RAWARGS%\"}"
		ARGS="${TEMPARGS#\"}" ;;
	 "-ADDON")
		ADDON="$param" ;;
	 "-LIMIT")
		LIMIT="$param" ;;
	 "-RTKUSER")
		RTKUSER="$param" ;;
	 "-PRIVATE")
		PRIVATE="$param" ;;
	esac
	shift
done

#for test $# -gt 0; do #"$@"
# case "$1" in
# "-IP")
#    IP="$2"
#    shift;;
# "-PORT")
#    PORT="$2"
#    shift ;;
# "-PLAYER")
#    PLAYER="$2"
#    shift ;;
# "-JAR")
#	JARNAME="$2"
#	shift ;;
# "-RAM")
#    RAM="$2"
#    shift ;;
# "-ARGS")
#	RAWARGS="$2"
#	TEMPARGS="${RAWARGS%\"}"
#	ARGS="${TEMPARGS#\"}"
#	shift ;;
# "-ADDON")
#    ADDON="$2"
#    shift ;;
# "-LIMIT")
#    LIMIT="$2"
#    shift ;;
# "-RTKUSER")
#    RTKUSER="$2"
#    shift ;;
# "-PRIVATE")
#    PRIVATE="$2"
#    shift ;;
# esac
# shift
#done

## kill den alten port =)
if [ ! -f minecraft_server.pid ]; then
  echo ""
else 
  pid=`cat minecraft_server.pid`
  kill -KILL $pid
  rm -rf minecraft_server.pid
fi

let REMOTE=${PORT}+1
echo "eula=true" > eula.txt
## serversettings
grep server-ip= server.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i server.properties -e "s/^\(server-ip=\).*$/\1${IP}/"
else  # Nicht vorhanden!
  echo "server-ip=${IP}" >> server.properties
fi

grep server-port= server.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i server.properties -e "s/^\(server-port=\).*$/\1${PORT}/"
else  # Nicht vorhanden!
  echo "server-port=${PORT}" >> server.properties
fi

grep max-players= server.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i server.properties -e "s/^\(max-players=\).*$/\1${PLAYER}/"
else  # Nicht vorhanden!
  echo "max-players=${PLAYER}" >> server.properties
fi

grep enable-query= server.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i server.properties -e "s/^\(enable-query=\).*$/\1true/"
else  # Nicht vorhanden!
  echo "enable-query=true" >> server.properties
fi

grep query.port= server.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i server.properties -e "s/^\(query.port=\).*$/\1${PORT}/"
else  # Nicht vorhanden!
  echo "query.port=${PORT}" >> server.properties
fi

mkdir toolkit

grep maximum-heap-size= ./toolkit/wrapper.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i ./toolkit/wrapper.properties -e "s/^\(maximum-heap-size=\).*$/\1${RAM}M/"
else  # Nicht vorhanden!
  echo "maximum-heap-size=${RAM}M" >> ./toolkit/wrapper.properties
fi

grep initial-heap-size= ./toolkit/wrapper.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i ./toolkit/wrapper.properties -e "s/^\(initial-heap-size=\).*$/\1${RAM}M/"
else  # Nicht vorhanden!
  echo "initial-heap-size=${RAM}M" >> ./toolkit/wrapper.properties
fi

grep remote-bind-address= ./toolkit/remote.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i ./toolkit/remote.properties -e "s/^\(remote-bind-address=\).*$/\1${IP}/"
else  # Nicht vorhanden!
  echo "remote-bind-address=${IP}" >> ./toolkit/remote.properties
fi

grep remote-control-port= ./toolkit/remote.properties &>/dev/null
if [[ $? -eq 0 ]]; then  # Vorhanden!
  sed -i ./toolkit/remote.properties -e "s/^\(remote-control-port=\).*$/\1${REMOTE}/"
else  # Nicht vorhanden!
  echo "remote-control-port=${REMOTE}" >> ./toolkit/remote.properties
fi

if [[ $PRIVATE == "true" ]]; then
  echo Server startet im PRIVATEN modus. Bitte setzen sie Spieler auf die Whitelist um ihn benutzen zu koennen!
  grep white-list= server.properties &>/dev/null
  if [[ $? -eq 0 ]]; then  # Vorhanden!
    sed -i server.properties -e "s/^\(white-list=\).*$/\1true/"
  else  # Nicht vorhanden!
    echo "white-list=true" >> server.properties
  fi
else
echo Server Startet als Publicserver
fi

MINRAM=$(($RAM / 2))

autorestart="1"

while [[ $autorestart == "1" ]]; do
        # Start Server
        echo Starting Server with command \' java -Xmx"$RAM"M -Xms"$MINRAM"M $ARGS -server -jar "$JARNAME" nogui $IP $PORT \'
        java -Xmx"$RAM"M -Xms"$MINRAM"M $ARGS -server -jar "$JARNAME" nogui $IP $PORT
        # After the Server JVM exited
        echo Server JVM closed
        echo Scheduling auto-restart - enter \'stop\' to cancel or \'start\' to skip the countdown
        countdown="120"
        cdindex="1"
        cdwait[1]="60"
        cdwait[2]="30"
        cdwait[3]="20"
        cdwait[4]="10"
        cdwait[5]="5"
        while [[ $countdown -gt 0 ]] ; do
                echo Commencing restart in $countdown seconds!
                read -t ${cdwait[$cdindex]}  reply
                echo
                if [[ -z "$reply" ]]; then
                        if [[ $countdown == "0" ]]; then
                                echo Commencing restart NOW!
                        else
                                countdown=$(($countdown - ${cdwait[$cdindex]}))
                                ((cdindex++))
                        fi
                elif [[ "$reply" == "stop" ]]; then
                        echo Restart canceled!
                        autorestart="0"
                        break
				elif [[ "$reply" == "start" ]]; then
						echo Commencing restart NOW!
						break
                fi
        done
done

echo start.sh finalized!