#!/bin/bash

# Slackware build script for Cemu

# Copyright 2026 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=Cemu
VERSION=${VERSION:-2.6}
BUILD=${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}

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
tar -xvf $CWD/Vulkan-Headers-9b9fd871b08110cd8f0b74e721b03213d9cc3081.tar.gz \
    -C dependencies/Vulkan-Headers --strip-components=1
tar -xvf $CWD/ZArchive-d2c717730092c7bf8cbb033b12fd4001b7c4d932.tar.gz \
    -C dependencies/ZArchive --strip-components=1
tar -xvf $CWD/cubeb-2071354a69aca7ed6df3b4222e305746c2113f60.tar.gz \
    -C dependencies/cubeb --strip-components=1
tar -xvf $CWD/googletest-800f5422ac9d9e0ad59cd860a2ef3a679588acb4.tar.gz \
    -C dependencies/cubeb/googletest --strip-components=1
tar -xvf $CWD/imgui-f65bcf481ab34cd07d3909aab1479f409fa79f2f.tar.gz \
    -C dependencies/imgui --strip-components=1
tar -xvf $CWD/sanitizers-cmake-aab6948fa863bc1cbe5d0850bc46b9ef02ed4c1a.tar.gz \
    -C dependencies/cubeb/cmake/sanitizers-cmake --strip-components=1
tar -xvf $CWD/vcpkg-a4275b7eee79fb24ec2e135481ef5fce8b41c339.tar.gz \
    -C dependencies/vcpkg --strip-components=1
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/glm::glm/glm/' src/Common/CMakeLists.txt src/input/CMakeLists.txt

if [ "${CURRENT:-OFF}" = "OFF" ]; then
    # https://github.com/cemu-project/Cemu/issues/1034
    sed -i "/find_package(glslang / s|glslang|Vulkan COMPONENTS glslang|;/add_library(glslang/d;" CMakeLists.txt
    sed -i "/set(glslang_target/ s|glslang::SPIRV|Vulkan::glslang|" src/Cafe/CMakeLists.txt
fi
mkdir -p build
cd build
  cmake -GNinja \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_DOCDIR=doc/$PRGNAM-$VERSION \
    -DLIB_SUFFIX="$LIBDIRSUFFIX" \
    -DCMAKE_INSTALL_LIBDIR=lib${LIBDIRSUFFIX} \
    -DUSE_DISCORD_RPC=OFF \
    -DENABLE_VCPKG=OFF \
    -DEMULATOR_VERSION_MAJOR="${VERSION%.*}" \
    -DEMULATOR_VERSION_MINOR="${VERSION:2}" \
    -DEMULATOR_VERSION_PATCH="0" \
    -DCMAKE_BUILD_TYPE=Release ..
  "${NINJA:=ninja}"
cd ..

install -dm755 $PKG/usr/share/$PRGNAM
cp -a bin/gameProfiles bin/resources $PKG/usr/share/$PRGNAM
install -Dm644 dist/linux/info.cemu.Cemu.metainfo.xml -t $PKG/usr/share/appdata
install -Dm644 dist/linux/info.cemu.Cemu.desktop -t $PKG/usr/share/applications
install -Dm644 dist/linux/info.cemu.Cemu.png -t $PKG/usr/share/icons/hicolor/128x128/apps
install -Dm755 bin/Cemu_release $PKG/usr/bin/$PRGNAM

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 LICENSE.txt README.md \
   $PKG/usr/doc/$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