#!/bin/bash

# Slackware build script for Marathon Eternal X

# Original author: Hunter Sezen.
# Modified and now maintained by B. Watson <urchlay@slackware.uk>.

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20240902 bkw:
# - new maintainer.
# - relicense as WTFPL.
# - update for v1.2.1 (latest stable).
# - fix libpng warnings.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=marathon-eternal-data
VERSION=${VERSION:-1.2.1}
SRCVER=$(printf %s "$VERSION" | tr -d .)
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

ARCH=noarch

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

set -e

# install gamedata in opt instead of usr
if [ "${OPT:-no}" != "no" ]; then
  DATA='/opt/AlephOne'
else
  DATA='/usr/share/AlephOne/gamedata'
fi

ZIPNAME=EternalX
ZIPFILE=${ZIPNAME}v${SRCVER}.zip
WRAPPER=marathon-eternal
DATADIR=$PKG$DATA

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT $DATADIR
cd $TMP
unzip $CWD/$ZIPFILE -d $DATADIR

chown -R root:root $DATADIR

# NB: the usual find predicate is different (zipfile stores +x permissions
# on some files for no good reason)
find $DATADIR \
 \( -type f -exec chmod 644 {} + \) -o \
 \( -type d -exec chmod 755 {} + \)

# Write launcher script to the user's path
mkdir -p $PKG/usr/games
cat > $PKG/usr/games/$WRAPPER <<EOF
#!/bin/sh
ALEPHONE_DATA="$DATA/Eternal $VERSION"
export ALEPHONE_DATA
exec alephone "\$@"
EOF
chmod +x $PKG/usr/games/$WRAPPER

# Write a desktop file
mkdir -p $PKG/usr/share/applications
cat > $PKG/usr/share/applications/$WRAPPER.desktop <<EOF
[Desktop Entry]
Name=Marathon Eternal X
Exec=/usr/games/$WRAPPER
Icon=alephone
Type=Application
Comment=Marathon Eternal X (first-person shooter game)
Categories=Game;ActionGame;
EOF

# Don't want this
rm -rf $DATADIR/__MACOSX

# Remove unneeded hidden files
find $DATADIR -name ".[^.]*" -mindepth 1 -print0 | xargs -0r rm -rf

# Fix windows formatted scripts
set -- $DATADIR/*/Scripts/*
for script do
  tr '\r' '\n' < "$script" > "$script-tmp"
  mv -- "$script-tmp" "$script"
done

# 20240902 bkw: get rid of these warnings during gameplay:
# libpng warning: iCCP: known incorrect sRGB profile
# Unfortunately libpng doesn't say *which* png file it's bitching about.
# It turns out, you can just grep for iCCP to find them. All but one
# of the PNGs that have an iCCP chunk, have an invalid one... and if
# you run 'mogrify' on such an image, it removes the iCCP chunk (though
# it leaves it, if it's *not* "incorrect").
# This would fail if any of the PNG images had spaces in the filenames.
cd $DATADIR/Eternal\ $VERSION
find . -name '*.png' | xargs grep -l iCCP | xargs mogrify

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE