#!/bin/sh

[ -z $PREPKG ] && exit 1

PACKAGE=tribes2
VERSION=25034
FILES=$(cd $(dirname $0) ; pwd)

# cdrom contents MUST have been previously copied to the following directory
# loop mounting the iso is outside the scope of this build script
if [ ! -d $PACKAGE-21570-cdrom ] ; then
  echo "cannot find cdrom contents. aborting"
  exit 1
fi

mkdir -p \
  $PREPKG/{install,usr/{doc/$PACKAGE-$VERSION,games,share/games/$PACKAGE}}/

# first up, copy original game data to the proper locations
pushd $PACKAGE-21570-cdrom/
cp -a \
  base/ menu/ bin/x86/glibc-2.1/* README* \
  Tribes2_Manual.pdf console_start.cs icon.* \
  $PREPKG/usr/share/games/$PACKAGE/
tar xf \
  profiles.tar.gz \
  -C $PREPKG/usr/share/games/$PACKAGE/
popd

# we only want the incremental patches. not tribes2-25034-cdrom-x86.run
for PATCH in $FILES/patches/$PACKAGE-?????-x86.run ; do
  # extract
  DIR=$(basename $PATCH .run)
  mkdir $DIR
  sed '1,/^END_OF_STUB$/d' $PATCH | tar zxf - -C $DIR

  # keep the first version of loki_patch that we find (from 22002)
  # loki_patch from 22228 onwards throws the following error:
  # loki_patch: dynamic-link.h:57: elf_get_dynamic_info: Assertion `! "bad dynamic tag"' failed.
  if [ ! -e loki_patch ] ; then
    cp -p $DIR/bin/Linux/x86/loki_patch .
  fi

  # patch
  pushd $DIR
  ../loki_patch patch.dat $PREPKG/usr/share/games/$PACKAGE/
  popd

  # timestamp touchups
  pushd $DIR/data/
  for SRC in $(find * ! -type d) ; do
    DST=$PREPKG/usr/share/games/$PACKAGE/${SRC/.0}
    if [ -e $SRC -a -e $DST ] ; then
      touch -r $SRC $DST
    fi
  done
  popd
done

## breaking with tradition. hardlink rather than copy documentation
pushd $PREPKG/usr/share/games/$PACKAGE/
cp -al \
  base/EULA.txt classic/classic_*.txt Inside_Team_Rabbit_2.txt \
  README* Tribes2_Manual.pdf \
  $PREPKG/usr/doc/$PACKAGE-$VERSION/
popd

# necessary for online play (client & server):
cp -p \
  $FILES/patches/AlternateMasterSupport.vl2 \
  $PREPKG/usr/share/games/$PACKAGE/base/

# necessary for online play (server):
tar xf \
  $FILES/patches/$PACKAGE-lan-fix-linux.tar.gz
./xdelta3 decode -s \
  $PREPKG/usr/share/games/$PACKAGE/${PACKAGE}d.dynamic \
  $PACKAGE-lan-fix-linux.xdelta \
  $PREPKG/usr/share/games/$PACKAGE/${PACKAGE}d-lan.dynamic
touch -r \
  $PACKAGE-lan-fix-linux.xdelta \
  $PREPKG/usr/share/games/$PACKAGE/${PACKAGE}d-lan.dynamic

cp \
  $FILES/scripts/$PACKAGE \
  $PREPKG/usr/games/
chmod +x \
  $PREPKG/usr/games/$PACKAGE

cp \
  $FILES/slack-desc \
  $PREPKG/install/

# clean up permissions & ownerships
find $PREPKG \
  \( -type d -o -type f -a \( -name "$PACKAGE*" -o -name 't2launch' \) \) \
  -exec chmod 0755 {} \; \
  -o -type f -a \( ! -name "$PACKAGE*" -o ! -name 't2launch' \) \
  -exec chmod 0644 {} \;

chown -R \
  root:root $PREPKG