#!/bin/bash
# Slackware build script for blupimania
#
# Yth | Pont-en-Royans, France | yth@ythogtha.org
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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

PRGNAM=blupimania
VERSION=${VERSION:-1.6.2}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
BINDIR=/usr/games
SDL2_IMAGE_VERSION=2.6.3
SDL2_MIXER_VERSION=2.6.3

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

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}

DOCS="README.md LICENSE"

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
tar xvf $CWD/SDL_image-release-${SDL2_IMAGE_VERSION}.tar.gz
tar xvf $CWD/SDL_mixer-release-${SDL2_MIXER_VERSION}.tar.gz
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
sed -i 's#/lib/#/lib64/#g;s#NO_DEFAULT_PATH##g' CMakeLists.txt
sed -i 's#<SDL2/SDL_image.h>#"SDL_image.h"#' src/blupimania.h
sed -i 's#<SDL2/SDL_image.h>#"SDL_image.h"#' src/sdl/SDL3_IMG_webp.c src/sdl/SDL3_IMG.h src/blupimania.h
sed -i 's#<SDL2/SDL_mixer.h>#"SDL_mixer.h"#' src/smaky.c src/play.c
WORKDIR=$(pwd)

## slackware's SDL2_image and SDL2_mixer are outdated, using more recent ones
mkdir -p build $PKG/usr/share/blupimania \
  SDL_image-release-${SDL2_IMAGE_VERSION}/build \
  SDL_mixer-release-${SDL2_MIXER_VERSION}/build
# SDL2_image
pushd SDL_image-release-${SDL2_IMAGE_VERSION}
./configure \
  --prefix=/install \
  --libdir=/install/lib$LIBDIRSUFFIX \
  --enable-shared \
  --disable-static \
  --disable-sdltest \
  --disable-bmp \
  --disable-gif \
  --disable-jpg \
  --disable-jpg-shared \
  --disable-lbm \
  --disable-pcx \
  --enable-png \
  --disable-png-shared \
  --disable-pnm \
  --disable-tga \
  --disable-tif \
  --disable-tif-shared \
  --disable-xcf \
  --disable-xpm \
  --disable-xv \
  --enable-webp \
  --enable-webp-shared
# ./configure --enable-webp --disable-webp-shared
# cd build
# cmake \
#   -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
#   -DCMAKE_INSTALL_PREFIX=/install \
#   -DCMAKE_INSTALL_LIBDIR=lib$LIBDIRSUFFIX \
#   -DCMAKE_BUILD_TYPE=Release ..
make
make install DESTDIR=$WORKDIR
popd
# SDL2_mixer
pushd SDL_mixer-release-${SDL2_MIXER_VERSION}
./configure \
  --prefix=/install \
  --libdir=/install/lib$LIBDIRSUFFIX \
  --enable-shared \
  --disable-static \
  --disable-sdltest \
  --disable-music-cmd \
  --enable-music-wave \
  --disable-music-mod \
  --disable-music-mod-modplug \
  --disable-music-mod-modplug-shared \
  --disable-music-mod-mikmod \
  --disable-music-mod-mikmod-shared \
  --enable-music-midi \
  --enable-music-midi-timidity \
  --enable-music-midi-native \
  --disable-music-midi-fluidsynth \
  --disable-music-midi-fluidsynth-shared \
  --enable-music-ogg \
  --disable-music-ogg-tremor \
  --disable-music-ogg-shared \
  --disable-music-flac \
  --disable-music-flac-shared \
  --disable-music-mp3 \
  --disable-music-mp3-smpeg \
  --disable-music-mp3-smpeg-shared \
  --disable-smpegtest \
  --disable-music-mp3-mad-gpl
# cmake \
#   -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
#   -DCMAKE_INSTALL_PREFIX=/install \
#   -DCMAKE_INSTALL_LIBDIR=lib$LIBDIRSUFFIX \
#   -DCMAKE_BUILD_TYPE=Release ..
make
make install DESTDIR=$WORKDIR
popd
## End of SDL2 block

BMDIR=$PKG/usr/share/blupimania
cp $WORKDIR/install/lib$LIBDIRSUFFIX/*.so* $BMDIR
# blupimania expects to find its files in (binary path)/../share/blupimania
# Hence we are installing blupimania binary in /usr/libexec
# and a shell wrapper in /usr/games.
BINDIR=/usr/libexec
mkdir -p $PKG/usr/games
cat <<EOF > $PKG/usr/games/blupimania
#!/bin/bash
export LD_LIBRARY_PATH=/usr/share/blupimania:\$LD_LIBRARY_PATH
exec "$BINDIR/blupimania" "\$@"
EOF
chmod 755 $PKG/usr/games/blupimania

export SDL2_image_DIR=$WORKDIR/install/lib$LIBDIRSUFFIX/cmake/SDL2_image
export SDL2_mixer_DIR=$WORKDIR/install/lib$LIBDIRSUFFIX/cmake/SDL2_mixer
SLKCFLAGS="${SLKCFLAGS} -L$BMDIR -iquote${WORKDIR}/install/include/SDL2"
export CMAKE_INSTALL_PREFIX=${WORKDIR}/install
mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_LIBDIR=lib$LIBDIRSUFFIX \
    -DCMAKE_INSTALL_BINDIR:PATH=$BINDIR \
	-DSTATIC_BUILD=OFF \
	-DBUILD_LINUX=ON \
    -Wno-dev \
    -DCMAKE_BUILD_TYPE=Release ..
  sed -i 's#-L/usr/lib#-L'$BMDIR'#g;s#-Wl,-rpath,/usr/lib#-Wl,-rpath,'$BMDIR'#g;s#-lSDL2#-lSDL2 -lSDL2_image -lSDL2_mixer -lwebp -lwebpdemux -lmodplug#g' CMakeFiles/blupimania.dir/link.txt
  make
  make install DESTDIR=$PKG
cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$PRGNAM/* $PKG/usr/doc/$PRGNAM-$VERSION
rm -rf $PKG/usr/share/doc
cp -a $DOCS $PKG/usr/doc/$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