#!/bin/bash

# Slackware build script for pcsx2

# Copyright 2022-2024 Steven Voges <Oregon, USA>
# Copyright 2025 Ruoh-Shoei LIN
# All rights reserved.
#
# 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=pcsx2
VERSION=${VERSION:-2.4.0}
PATCHVER=${PATCHVER:-2fdc835f0725b318efcdaae84db1c73a9139b6f6}
GIT_DATE=${GIT_DATE:-2025-06-29 15:47:12 -0400}
GIT_VERSION=${GIT_VERSION:-v2.4.0}
GIT_HASH=${GIT_HASH:-e4af1c424451c6b65c5c387404315cef77e9901b}

LIBBACKTRACE=${LIBBACKTRACE:-ad106d5fdd5d960bd33fae1c48a351af567fd075}
LIBJPEGTURBO=${LIBJPEGTURBO:-3.1.0}
LIBPNG=${LIBPNG:-1.6.48}
LIBWEBP=${LIBWEBP:-1.5.0}
SDL=${SDL:-3.2.14}
LZ4=${LZ4:-1.10.0}
ZSTD=${ZSTD:-1.5.7}
KDDOCKWIDGETS=${KDDOCKWIDGETS:-2.2.3}
PLUTOVG=${PLUTOVG:-0.0.13}
PLUTOSVG=${PLUTOSVG:-0.0.6}
SHADERC=${SHADERC:-2024.1}
SHADERC_GLSLANG=${SHADERC_GLSLANG:-142052fa30f9eca191aa9dcf65359fcaed09eeec}
SHADERC_SPIRVHEADERS=${SHADERC_SPIRVHEADERS:-5e3ad389ee56fca27c9705d093ae5387ce404df4}
SHADERC_SPIRVTOOLS=${SHADERC_SPIRVTOOLS:-dd4b663e13c07fea4fbb3f70c1c91c86731099f7}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

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}
DEPS=$TMP/$PRGNAM-$VERSION/deps

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"
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

mkdir -p ${DEPS}-build
pushd ${DEPS}-build
tar xvf $CWD/KDDockWidgets-$KDDOCKWIDGETS.tar.gz
tar xvf $CWD/SDL3-$SDL.tar.gz
tar xvf $CWD/libbacktrace-$LIBBACKTRACE.tar.gz
tar xvf $CWD/libjpeg-turbo-$LIBJPEGTURBO.tar.gz
tar xvf $CWD/libpng-$LIBPNG.tar.xz
tar xvf $CWD/libwebp-$LIBWEBP.tar.gz
tar xvf $CWD/lz4-$LZ4.tar.gz
tar xvf $CWD/plutosvg-$PLUTOSVG.tar.gz
tar xvf $CWD/plutovg-$PLUTOVG.tar.gz
tar xvf $CWD/shaderc-$SHADERC.tar.gz
mkdir -p shaderc-$SHADERC/third_party/{glslang,spirv-headers,spirv-tools}
tar xvf $CWD/glslang-$SHADERC_GLSLANG.tar.gz \
    -C shaderc-$SHADERC/third_party/glslang --strip-components=1
tar xvf $CWD/SPIRV-Headers-$SHADERC_SPIRVHEADERS.tar.gz \
    -C shaderc-$SHADERC/third_party/spirv-headers --strip-components=1
tar xvf $CWD/SPIRV-Tools-$SHADERC_SPIRVTOOLS.tar.gz \
    -C shaderc-$SHADERC/third_party/spirv-tools --strip-components=1
tar xvf $CWD/zstd-$ZSTD.tar.gz
tar xvf $CWD/${PRGNAM}_patches-${PATCHVER}.tar.gz
popd

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 {} \;

echo "#define DEFAULT_UPDATER_CHANNEL \"stable\"" > ./pcsx2-qt/DefaultUpdaterChannel.h
sed -i '37,83d;149,219d;252,259d;265,268d;/rm -fr \"/d;/unzip \"/d;/tar xf \"/d;' \
    ./.github/workflows/scripts/linux/build-dependencies-qt.sh
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" \
    .github/workflows/scripts/linux/build-dependencies-qt.sh deps

if [ "${LLVM_OPT:-ON}" = "ON" ]; then
    export PATH="/opt/llvm-opt/bin:$PATH"
    if [ -z "$LD_LIBRARY_PATH" ]; then
	export LD_LIBRARY_PATH="/opt/llvm-opt/lib$LIBDIRSUFFIX"
    else
	export LD_LIBRARY_PATH="/opt/llvm-opt/lib$LIBDIRSUFFIX:$LD_LIBRARY_PATH"
    fi
fi

mkdir -p build
cd build
  cmake -GNinja \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DMAN_INSTALL_DIR=/usr/man \
    -DCMAKE_PREFIX_PATH="${DEPS}" \
    -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
    -DCMAKE_C_COMPILER=clang \
    -DCMAKE_CXX_COMPILER=clang++ \
    -DCMAKE_EXE_LINKER_FLAGS_INIT="-fuse-ld=lld -lrt" \
    -DCMAKE_MODULE_LINKER_FLAGS_INIT="-fuse-ld=lld -lrt" \
    -DCMAKE_SHARED_LINKER_FLAGS_INIT="-fuse-ld=lld -lrt" \
    -DENABLE_SETCAP=OFF \
    -DPACKAGE_MODE=ON \
    -DDISABLE_ADVANCE_SIMD=ON \
    -DCMAKE_DISABLE_PRECOMPILE_HEADERS=ON \
    -DPCSX2_APP_DATADIR=/usr/share/PCSX2/resources \
    -DCMAKE_BUILD_TYPE=Release ..
  ninja
  ninja unittests
  DESTDIR=$PKG ninja install
cd ..

install -v -Dm644 ./bin/resources/icons/AppIconLarge.png \
	$PKG/usr/share/icons/hicolor/512x512/apps/net.pcsx2.PCSX2.png
install -v -Dm644 ./.github/workflows/scripts/linux/pcsx2-qt.desktop \
	$PKG/usr/share/applications/net.pcsx2.PCSX2.desktop
desktop-file-edit \
    --set-key=Icon \
    --set-value=net.pcsx2.PCSX2 \
    --set-key=Exec \
    --set-value="env LD_LIBRARY_PATH=/usr/lib$LIBDIRSUFFIX/pcsx2 pcsx2-qt" \
    $PKG/usr/share/applications/net.pcsx2.PCSX2.desktop
sed -i \
    "s/@GIT_VERSION@/$GIT_VERSION/g;s/@GIT_DATE@/$GIT_DATE/g;s/@GIT_HASH@/$GIT_HASH/g" \
    .github/workflows/scripts/linux/pcsx2-qt.metainfo.xml.in
install -v -Dm644 .github/workflows/scripts/linux/pcsx2-qt.metainfo.xml.in \
	$PKG/usr/share/metainfo/net.pcsx2.PCSX2.metainfo.xml
install -v -dm755 "$PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM"
find "$DEPS/lib${LIBDIRSUFFIX}" -maxdepth 1 ! -type d \
     -exec cp -av '{}' "$PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM" \;

# pcsx2_patches, collection of game patches (e.g. widescreen hacks)
zip -mTj9 \
    $CWD/patches.zip \
    ${DEPS}-build/${PRGNAM}_patches-${PATCHVER}/patches/*
install -Dm644 $CWD/patches.zip -t $PKG/usr/share/PCSX2/resources

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
cp -a \
  COPYING.* README.md bin/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 --remove-rpaths $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE