#! /bin/sh

DISPLAY=:0
export DISPLAY

# Fail on errors
set -e

# Use the IP address of this host to construct a broadcast address.  This
# feature will be hopefully going away very soon.

broadcast=`hostname -i | sed 's/\.[0-9]*$/.255/'`

render_dir="@prefix@"
nanoscale_port=2000
nanovis_port=2000
pymol_port=2020

# Build the name of the run directory. This is where nanoscale and the
# visualization programs will reside.  The directory name is the same as the
# render directory.
dir="/tmp/`basename $render_dir`"


PATH=${dir}/bin:$PATH
LD_LIBRARY_PATH=${dir}/lib:$LD_LIBRARY_PATH
PYMOL_PATH=${dir}/lib/pymol

export PATH LD_LIBRARY_PATH PYMOL_PATH

# Determine the number of video cards we have.  The new render server
# motherboards have the useless XGI Volaria onboard video controllers (no 3D
# capabilities) so we have to make sure we count only the nVidia cards.

nvideo=`lspci | fgrep VGA | fgrep nVidia | wc -l`

nanoscale="${dir}/bin/nanoscale -x ${nvideo} -b $nanoscale_port -s $broadcast"
nanovis="${dir}/bin/nanovis -p ${dir}/lib/shaders:${dir}/lib/resources"
pymolproxy="${dir}/bin/pymolproxy ${dir}/bin/pymol -p -q -i -x -X 0 -Y 0"

# Copy from render directory if the run copy doesn't already exist.
# Otherwise use what's there.  This means that successive invocations
# of nanoscale won't create their own run directories (only the first
# one will).

if test -d "$dir" ; then
  echo "Reusing previously installed version from $render_dir"
else 
  echo "Copying rappture from $render_dir"
  mkdir -p $dir
  tar -C ${render_dir} -clf - . | tar -C $dir -xpf - 
fi

cd ${dir}

# Don't let nanoscale and the visualization servers run away.
# Limit cpu time to 20 minutes.
minutes=20
ulimit -t $(expr ${minutes} \* 60 )

echo "$nanoscale -l $nanovis_port -c \"$nanovis\" -l $pymol_port -c \"$pymolproxy\""
$nanoscale -l $nanovis_port -c "$nanovis" -l $pymol_port -c "$pymolproxy"