#!/bin/sh

findMissingSO () {

  LDCONFIG="$1"
  SO_LINKEDLIBNAME="$2"
  SO_LIBLOOKUP1="$3"
  SO_LIBLOOKUP2="$4"

  hasSO=`$LDCONFIG -p | grep -m 1 "$SO_LIBLOOKUP1" | cut "-d>" -f2 | cut "-d " -f2`
  if [ -n "$hasSO" ]; then
    echo 'default library ['"$SO_LINKEDLIBNAME"'] was found in ['"$hasSO"']' >&2
  else
    echo 'default library ['"$SO_LINKEDLIBNAME"'] is missing, attempting to find and link to a newer version if available...' >&2
    hasSO=`$LDCONFIG -p | grep -m 1 "$SO_LIBLOOKUP2" | cut "-d>" -f2 | cut "-d " -f2`
    if [ -n "$hasSO" ]; then
      echo 'new library link ['"$hasSO"'] pointed to from ['"$SO_LINKEDLIBNAME"']' >&2
      ln -f -s $hasSO $SO_LINKEDLIBNAME
    fi
  fi

  return 0
}

# 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"']' >&2

# 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)
echo 'Looking for LDCONFIG ['"$LDCONFIG"']...' >&2

if [ "$LDCONFIG"'_' = '_' ]; then    # 'LDCONFIG' environment variable, if set, overrides the following detection 
  echo 'LDCONFIG environment variable is not set...' >&2
  if [ `which ldconfig 2>/dev/null` ]; then 
    LDCONFIG=`which ldconfig 2>/dev/null`
    echo 'Found LDCONFIG using which ['"$LDCONFIG"']...' >&2
  else
    if [ -x /sbin/ldconfig ]; then
      LDCONFIG=/sbin/ldconfig
      echo 'Found LDCONFIG in /sbin ['"$LDCONFIG"']...' >&2
    # optionally add more custom locations using 'elseif' here
    else
      echo 'ERROR: Could not find the "ldconfig" command.' >&2
      echo 'Please re-run using: "LDCONFIG=/path/to/ldconfig '"$0" >&2
      exit 1
    fi
  fi
else
  echo 'Found LDCONFIG environment variable ['"$LDCONFIG"']...' >&2
fi


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

# OpenSuSE (11.3) and Fedora needs its own openAL
#if [ -f /etc/SuSE-release -a -f lib/libopenal* ]; then
if [ -f /etc/SuSE-release ] || [ -f /etc/fedora-release ] ; then
  
  if [ -f /etc/SuSE-release ] ; then
    echo 'Detected Open Suse...' >&2
  fi

  if [ -f /etc/fedora-release ] ; then
    echo 'Detected Fedora...' >&2
  fi

  #rm -f lib/libopenal*
  # libcurl*, libgnu*, libicu*, liblua*, libxerces*
  #mv `ls -1 | grep -v '\.abc$' | grep -v '\.xyz$' | xargs`

  if [ ! -d lib_bkp ]; then
	  mkdir lib_bkp
	  mv lib/* lib_bkp/
	  cp lib_bkp/libcurl* lib/
	  cp lib_bkp/libgnu* lib/
	  cp lib_bkp/libicu* lib/
	  cp lib_bkp/liblua* lib/
	  cp lib_bkp/libxerces* lib/
  fi
fi

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-'

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

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

if [ "$OS_TYPE"'_' = 'x86_64_' ]; then
  DIRECTFB_LINKEDLIBNAME='libdirectfb-1.2.so.0'
  DIRECTFB_LIBLOOKUP1=${DIRECTFB_LINKEDLIBNAME}
  DIRECTFB_LIBLOOKUP2='libdirectfb-'

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

  DIRECT_LINKEDLIBNAME='libdirect-1.2.so.0'
  DIRECT_LIBLOOKUP1=${DIRECT_LINKEDLIBNAME}
  DIRECT_LIBLOOKUP2='libdirect-'
fi

#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

findMissingSO "$LDCONFIG" "$GAMEDIR/$LIBDIR/${OPENAL_LINKEDLIBNAME}" "$OPENAL_LIBLOOKUP1" "$OPENAL_LIBLOOKUP2"
findMissingSO "$LDCONFIG" "$GAMEDIR/$LIBDIR/${DIRECTFB_LINKEDLIBNAME}" "$DIRECTFB_LIBLOOKUP1" "$DIRECTFB_LIBLOOKUP2"
findMissingSO "$LDCONFIG" "$GAMEDIR/$LIBDIR/${FUSION_LINKEDLIBNAME}" "$FUSION_LIBLOOKUP1" "$FUSION_LIBLOOKUP2"
findMissingSO "$LDCONFIG" "$GAMEDIR/$LIBDIR/${DIRECT_LINKEDLIBNAME}" "$DIRECT_LIBLOOKUP1" "$DIRECT_LIBLOOKUP2"

#if [ -d techs/megapack/factions/norsemen/upgrades/training_field ]; then
	# removed as of 3.3.5.1 beta1
#	rm -r techs/megapack/factions/norsemen/upgrades/training_field
#fi

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