#!/bin/bash

NAME=$1
LOCATION=$2
URL=$3
IP=$4
SIZE=$5


OSPATH="/opt/opensim"
cd $OSPATH/config

k=0
for i in $(seq 50 99)
do
    j=$(printf "sim%02d" $i)
    if [ -e "$j" ]
    then 
	k=$i
    fi
done

if [ "x$NAME" = "x" ]
then
    NAME="No name sim $RANDOM"	# Should be unique per grid.
    echo "WARNING setting the sim name to [$NAME], this may not be what you want."
fi
# Sanitize the name.  Not removing [ or ], couldn't get that to work, only important for Windows.
sim=$(echo "${NAME}" | sed -e 's/[\\/:\*\?"<>\|@#$%&\0\x01-\x1F\x27\x40\x60\x7F. ]/_/g' -e 's/^$/NONAME/')

if [ "x$LOCATION" = "x" ]
then
    LOCATION="$RANDOM,$RANDOM"	# again UNIQUE (i.e. ONLY ONE) per grid in THIS case!
    echo "WARNING setting the Location to $LOCATION, this may not be what you want."
fi

if [ "x$IP" = "x" ]
then
				# 0.0.0.0 will work for a single sim per physical machine, otherwise we need the real internal IP.
    IP="0.0.0.0"
    echo "WARNING setting the InternalAddress to $IP, this may not be what you want."
#    echo "  0.0.0.0 will work for a single sim per physical machine, otherwise we need the real internal IP."
# According to the OpenSim docs, 0.0.0.0 means to listen on all NICs the machine has, which should work fine.
fi

# Here we make use of an external IP finding service.  Careful, it may move.
if [ "x$URL" = "x" ]
then
#    URL=$(wget -q http://automation.whatismyip.com/n09230945.asp -O -)	# URL is best (without the HTTP://), but IP (e.g. 88.109.81.55) works too.
    URL="SYSTEMIP"
    echo "WARNING setting the ExternalHostName to $URL, this may not be what you want."
fi

if [ "x$SIZE" = "x" ]
then
    SIZE="256"
fi

NUM=$(printf "%02d" $(($k + 1)) )
PORT=$(( 9005 + ($k * 5) ))	# 9002 is used for HTTP/UDP so START with port 9003! CAUTION Diva/D2 starts at port 9000.
UUID=$(uuidgen)

echo "Creating sim$NUM on port $PORT @ $LOCATION - $NAME."

cp -r sim_skeleton sim$NUM

cd sim$NUM
mv My_sim.xml ${sim}.xml
sed -i "s@SIM_NAME@$NAME@g" ${sim}.xml
sed -i "s@SIM_UUID@$UUID@g" ${sim}.xml
sed -i "s@SIM_POS@$LOCATION@g" ${sim}.xml
sed -i "s@SIM_IP@$IP@g" ${sim}.xml
sed -i "s@SIM_INT_PORT@$(( $PORT + 1 ))@g" ${sim}.xml
sed -i "s@SIM_URL@$URL@g" ${sim}.xml
sed -i "s@SIM_SIZE@$SIZE@g" ${sim}.xml

ln -s ../../current/scripts/common.sh common.sh
ln -s ../../current/scripts/start-sim start-sim
cp -P start-sim backup-sim
cp -P start-sim stop-sim

sed -i "s@SIM_NUMBER@$NUM@g" ThisSim.ini
sed -i "s@SIM_PORT@$PORT@g" ${sim}.xml


cp ../../current/scripts/opensim-monit.conf opensim-monit.conf
sed -i "s@SIM_NUMBER@$NUM@g" opensim-monit.conf
sudo chown -R opensim:opensim ..
sudo chmod -R g+w ..