#!/bin/sh

# Library directory
LIBDIR="lib"

# As a first step to determine the absolute path of the directory the game 
# resides in, dereference symlinks to this script and convert relative to 
# absolute paths along the way.
MYLOCATION="`readlink -f $0`"

# The game directory is the directory the script resides in
GAMEDIR="`dirname $MYLOCATION`"

# Change to the game dir, and go!
cd $GAMEDIR
echo gamedir [$GAMEDIR]

# export game library directory
test -n "${LIBDIR}" && export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${GAMEDIR}/${LIBDIR}"

# ensure ldconfig is found (was an issue on OpenSuSE 11.2)
if [ "$LDCONFIG"'x' = 'x' ]  # 'LDCONFIG' environment variable, if set, overrides the following detection 
then
  if [ `which ldconfig 2>/dev/null` ]
  then 
    LDCONFIG=`which ldconfig 2>/dev/null`
  else
    if [ -x /sbin/ldconfig ]
    then
      LDCONFIG=/sbin/ldconfig
    # optionally add more custom locations using 'elseif' here
    else
      echo 'ERROR: Could not find the "ldconfig" command.' >&2
      echo 'Try running "LDCONFIG=`which ldconfig` '"$0"' instead.' >&2
      exit 1
    fi
  fi
fi


# now deal with the openal library [libopenal.so.0]
OS_TYPE=`uname -m`

OPENAL_LINKEDLIBNAME="libopenal.so.0"
OPENAL_LIBLOOKUP1=${OPENAL_LINKEDLIBNAME}
OPENAL_LIBLOOKUP2="libopenal.so.1"

DIRECTFB_LINKEDLIBNAME="libdirectfb-1.0.so.0"
DIRECTFB_LIBLOOKUP1=${DIRECTFB_LINKEDLIBNAME}
DIRECTFB_LIBLOOKUP2="libdirectfb-1.2.so.0"

FUSION_LINKEDLIBNAME="libfusion-1.0.so.0"
FUSION_LIBLOOKUP1=${DIRECTFB_LINKEDLIBNAME}
FUSION_LIBLOOKUP2="libfusion-1.2.so.0"

DIRECT_LINKEDLIBNAME="libdirect-1.0.so.0"
DIRECT_LIBLOOKUP1=${DIRECT_LINKEDLIBNAME}
DIRECT_LIBLOOKUP2="libdirect-1.2.so.0"

if [ "$OS_TYPE" = "x86_64" ]; then
  OPENAL_LIBLOOKUP1="${OPENAL_LIBLOOKUP1} (libc6)"
  OPENAL_LIBLOOKUP2="${OPENAL_LIBLOOKUP2} (libc6)"

  DIRECTFB_LIBLOOKUP1="${DIRECTFB_LIBLOOKUP1} (libc6)"
  DIRECTFB_LIBLOOKUP2="${DIRECTFB_LIBLOOKUP2} (libc6)"

  FUSION_LIBLOOKUP1="${FUSION_LIBLOOKUP1} (libc6)"
  FUSION_LIBLOOKUP2="${FUSION_LIBLOOKUP2} (libc6)"

  DIRECT_LIBLOOKUP1="${DIRECT_LIBLOOKUP1} (libc6)"
  DIRECT_LIBLOOKUP2="${DIRECT_LIBLOOKUP2} (libc6)"
fi

hasopenal=`$LDCONFIG -p | grep -m 1 "$OPENAL_LIBLOOKUP1" | cut "-d>" -f2 | cut "-d " -f2`
#echo "openal search = [$hasopenal]"
if [ -n "$hasopenal" ]; then
  echo "default openal library was found in [$hasopenal]"
else
  echo "default openal library is missing, attempting to find and link to a newer version if available..."

  hasopenal=`$LDCONFIG -p | grep -m 1 "$OPENAL_LIBLOOKUP2" | cut "-d>" -f2 | cut "-d " -f2`
  if [ -n "$hasopenal" ]; then
    echo "new openal library link = $hasopenal"
    ln -f -s $hasopenal $GAMEDIR/$LIBDIR/${OPENAL_LINKEDLIBNAME}
  fi
fi

hasdirectfb=`$LDCONFIG -p | grep -m 1 "$DIRECTFB_LIBLOOKUP1" | cut "-d>" -f2 | cut "-d " -f2`
#echo "directfb search = [$hasdirectfb]"
if [ -n "$hasdirectfb" ]; then
  echo "default directfb library was found in [$hasdirectfb]"
else
  echo "default directfb library is missing, attempting to find and link to a different location if available..."

  hasdirectfb=`$LDCONFIG -p | grep -m 1 "$DIRECTFB_LIBLOOKUP2" | cut "-d>" -f2 | cut "-d " -f2`
  if [ -n "$hasdirectfb" ]; then
    echo "new directfb library link = $hasdirectfb"
    ln -f -s $hasdirectfb $GAMEDIR/$LIBDIR/${DIRECTFB_LINKEDLIBNAME}
  fi
fi

hasfusion=`$LDCONFIG -p | grep -m 1 "$FUSION_LIBLOOKUP1" | cut "-d>" -f2 | cut "-d " -f2`
#echo "fusion search = [$hasfusion]"
if [ -n "$hasfusion" ]; then
  echo "default fusion library was found in [$hasfusion]"
else
  echo "default fusion library is missing, attempting to find and link to a different location if available..."

  hasfusion=`$LDCONFIG -p | grep -m 1 "$FUSION_LIBLOOKUP2" | cut "-d>" -f2 | cut "-d " -f2`
  if [ -n "$hasfusion" ]; then
    echo "new fusion library link = $hasfusion"
    ln -f -s $hasfusion $GAMEDIR/$LIBDIR/${FUSION_LINKEDLIBNAME}
  fi
fi

hasdirect=`$LDCONFIG -p | grep -m 1 "$DIRECT_LIBLOOKUP1" | cut "-d>" -f2 | cut "-d " -f2`
#echo "direct search = [$hasdirect]"
if [ -n "$hasdirect" ]; then
  echo "default direct library was found in [$hasdirect]"
else
  echo "default direct library is missing, attempting to find and link to a different location if available..."

  hasdirect=`$LDCONFIG -p | grep -m 1 "$DIRECT_LIBLOOKUP2" | cut "-d>" -f2 | cut "-d " -f2`
  if [ -n "$hasdirect" ]; then
    echo "new direct library link = $hasdirect"
    ln -f -s $hasdirect $GAMEDIR/$LIBDIR/${DIRECT_LINKEDLIBNAME}
  fi
fi

./bin/glest.bin $@ 2>&1 | tee -a glest.log
# ./bin/glest.bin $@ 2>&1 | tee -a /tmp/`date +"%F_%k-%M-%S"`.glest.log 2>&1