#!/bin/bash

set -e

merge_binaries() {
  X86DIR=$1
  ARMDIR=$2
  echo "Merging ARM64 binaries from $ARMDIR into fat binaries at $X86DIR..."

  IFS="
"
  pushd "$X86DIR"
  for X86BIN in $(find . -type f \( -name '*.dylib' -o -name '*.a' -o -perm +111 \)); do
    if file "$X86DIR/$X86BIN" | grep "Mach-O " >/dev/null; then
      ARMBIN="${ARMDIR}/${X86BIN}"
      echo "Merge $ARMBIN to $X86BIN..."
      lipo -create "$X86BIN" "$ARMBIN" -o "$X86BIN"
    fi
  done
  popd
}

if [ "$#" -ne 1 ]; then
    echo "Syntax: $0 <output directory>"
    exit 1
fi

export MACOSX_DEPLOYMENT_TARGET=11.0

INSTALLDIR="$1"
NPROCS="$(getconf _NPROCESSORS_ONLN)"
SDL=SDL2-2.30.1
ZLIB=1.3.1
ZSTD=1.5.5
LIBPNG=1.6.43
LIBJPEG=9f
LIBWEBP=1.3.2
MOLTENVK=1.2.8
QT=6.6.2

if [ "${INSTALLDIR:0:1}" != "/" ]; then
	INSTALLDIR="$PWD/$INSTALLDIR"
fi

mkdir -p deps-build
cd deps-build

export PKG_CONFIG_PATH="$INSTALLDIR/lib/pkgconfig:$PKG_CONFIG_PATH"
export LDFLAGS="-L$INSTALLDIR/lib $LDFLAGS"
export CFLAGS="-I$INSTALLDIR/include $CFLAGS"
export CXXFLAGS="-I$INSTALLDIR/include $CXXFLAGS"
CMAKE_COMMON=(
	-DCMAKE_BUILD_TYPE=Release
	-DCMAKE_PREFIX_PATH="$INSTALLDIR"
	-DCMAKE_INSTALL_PREFIX="$INSTALLDIR"
	-DCMAKE_INSTALL_NAME_DIR='$<INSTALL_PREFIX>/lib'
)
CMAKE_ARCH_X64=-DCMAKE_OSX_ARCHITECTURES="x86_64"
CMAKE_ARCH_ARM64=-DCMAKE_OSX_ARCHITECTURES="arm64"
CMAKE_ARCH_UNIVERSAL=-DCMAKE_OSX_ARCHITECTURES="x86_64;arm64"

cat > SHASUMS <<EOF
01215ffbc8cfc4ad165ba7573750f15ddda1f971d5a66e9dcaffd37c587f473a  $SDL.tar.gz
9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23  zlib-$ZLIB.tar.gz
9c4396cc829cfae319a6e2615202e82aad41372073482fce286fac78646d3ee4  zstd-$ZSTD.tar.gz
6a5ca0652392a2d7c9db2ae5b40210843c0bbc081cbd410825ab00cc59f14a6c  libpng-$LIBPNG.tar.xz
2a499607df669e40258e53d0ade8035ba4ec0175244869d1025d460562aa09b4  libwebp-$LIBWEBP.tar.gz
04705c110cb2469caa79fb71fba3d7bf834914706e9641a4589485c1f832565b  jpegsrc.v$LIBJPEG.tar.gz
85beaf8abfcc54d9da0ff0257ae311abd9e7aa96e53da37e1c37d6bc04ac83cd  v$MOLTENVK.tar.gz
b89b426b9852a17d3e96230ab0871346574d635c7914480a2a27f98ff942677b  qtbase-everywhere-src-$QT.tar.xz
71584c9136d4983ad19fa2d017abbae57b055eb90c62a36bf3f45d6d21a87cb3  qtimageformats-everywhere-src-$QT.tar.xz
5a231d59ef1b42bfbaa5174d4ff39f8e1b4ba070ef984a70b069b4b2576d8181  qtsvg-everywhere-src-$QT.tar.xz
e6d49e9f52111287f77878ecb8b708cce682f10b03ba2476d9247603bc6c4746  qttools-everywhere-src-$QT.tar.xz
ca3ac090ef3aa12566c26b482c106f1f986c5a3444e7003f379726a550530c77  qttranslations-everywhere-src-$QT.tar.xz
EOF

curl -L \
	-O "https://libsdl.org/release/$SDL.tar.gz" \
	-O "http://zlib.net/zlib-$ZLIB.tar.gz" \
	-O "https://github.com/facebook/zstd/releases/download/v$ZSTD/zstd-$ZSTD.tar.gz" \
	-O "https://downloads.sourceforge.net/project/libpng/libpng16/$LIBPNG/libpng-$LIBPNG.tar.xz" \
	-O "https://ijg.org/files/jpegsrc.v$LIBJPEG.tar.gz" \
	-O "https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-$LIBWEBP.tar.gz" \
	-O "https://github.com/KhronosGroup/MoltenVK/archive/refs/tags/v$MOLTENVK.tar.gz" \
	-O "https://download.qt.io/official_releases/qt/${QT%.*}/$QT/submodules/qtbase-everywhere-src-$QT.tar.xz" \
	-O "https://download.qt.io/official_releases/qt/${QT%.*}/$QT/submodules/qtimageformats-everywhere-src-$QT.tar.xz" \
	-O "https://download.qt.io/official_releases/qt/${QT%.*}/$QT/submodules/qtsvg-everywhere-src-$QT.tar.xz" \
	-O "https://download.qt.io/official_releases/qt/${QT%.*}/$QT/submodules/qttools-everywhere-src-$QT.tar.xz" \
	-O "https://download.qt.io/official_releases/qt/${QT%.*}/$QT/submodules/qttranslations-everywhere-src-$QT.tar.xz"

shasum -a 256 --check SHASUMS

echo "Installing SDL..."
rm -fr "$SDL"
tar xf "$SDL.tar.gz"
cd "$SDL"
cmake -B build "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL" -DSDL_X11=OFF -DBUILD_SHARED_LIBS=ON
make -C build "-j$NPROCS"
make -C build install
cd ..

# Temporarily disabled, because the updater doesn't get fixup'd, so the dylib doesn't get added to its bundle.
#echo "Installing Zlib..."
#rm -fr "zlib-$ZLIB"
#tar xf "zlib-$ZLIB.tar.gz"
#cd "zlib-$ZLIB"
#cmake -B build "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL" -DBUILD_SHARED_LIBS=ON -DZLIB_BUILD_EXAMPLES=OFF
#make -C build "-j$NPROCS"
#make -C build install
#cd ..

echo "Installing Zstd..."
rm -fr "zstd-$ZSTD"
tar xf "zstd-$ZSTD.tar.gz"
cd "zstd-$ZSTD"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_X64" -DBUILD_SHARED_LIBS=ON -DZSTD_BUILD_PROGRAMS=OFF -B build-dir build/cmake
make -C build-dir "-j$NPROCS"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_ARM64" -DBUILD_SHARED_LIBS=ON -DZSTD_BUILD_PROGRAMS=OFF -B build-dir-arm64 build/cmake
make -C build-dir-arm64 "-j$NPROCS"
merge_binaries $(realpath build-dir) $(realpath build-dir-arm64)
make -C build-dir install
cd ..

echo "Installing libpng..."
rm -fr "libpng-$LIBPNG"
tar xf "libpng-$LIBPNG.tar.xz"
cd "libpng-$LIBPNG"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_X64" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -B build
make -C build "-j$NPROCS"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_ARM64" -DBUILD_SHARED_LIBS=ON -DPNG_TESTS=OFF -DPNG_ARM_NEON=on -B build-arm64
make -C build-arm64 "-j$NPROCS"
merge_binaries $(realpath build) $(realpath build-arm64)
make -C build install
cd ..

echo "Building libjpeg..."
rm -fr "jpeg-$LIBJPEG"
tar xf "jpegsrc.v$LIBJPEG.tar.gz"
cd "jpeg-$LIBJPEG"
mkdir build
cd build
../configure --prefix="$INSTALLDIR" --disable-static --enable-shared --host="x86_64-apple-darwin" CFLAGS="-arch x86_64"
make "-j$NPROCS"
cd ..
mkdir build-arm64
cd build-arm64
../configure --prefix="$INSTALLDIR" --disable-static --enable-shared --host="aarch64-apple-darwin" CFLAGS="-arch arm64"
make "-j$NPROCS"
cd ..
merge_binaries $(realpath build) $(realpath build-arm64)
make -C build install
cd ..

echo "Installing WebP..."
rm -fr "libwebp-$LIBWEBP"
tar xf "libwebp-$LIBWEBP.tar.gz"
cd "libwebp-$LIBWEBP"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_X64" -B build \
	-DWEBP_BUILD_ANIM_UTILS=OFF -DWEBP_BUILD_CWEBP=OFF -DWEBP_BUILD_DWEBP=OFF -DWEBP_BUILD_GIF2WEBP=OFF -DWEBP_BUILD_IMG2WEBP=OFF \
	-DWEBP_BUILD_VWEBP=OFF -DWEBP_BUILD_WEBPINFO=OFF -DWEBP_BUILD_WEBPMUX=OFF -DWEBP_BUILD_EXTRAS=OFF -DBUILD_SHARED_LIBS=ON
make -C build "-j$NPROCS"
cmake "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_ARM64" -B build-arm64 \
	-DWEBP_BUILD_ANIM_UTILS=OFF -DWEBP_BUILD_CWEBP=OFF -DWEBP_BUILD_DWEBP=OFF -DWEBP_BUILD_GIF2WEBP=OFF -DWEBP_BUILD_IMG2WEBP=OFF \
	-DWEBP_BUILD_VWEBP=OFF -DWEBP_BUILD_WEBPINFO=OFF -DWEBP_BUILD_WEBPMUX=OFF -DWEBP_BUILD_EXTRAS=OFF -DBUILD_SHARED_LIBS=ON
make -C build-arm64 "-j$NPROCS"
merge_binaries $(realpath build) $(realpath build-arm64)
make -C build install
cd ..

# MoltenVK already builds universal binaries, nothing special to do here.
echo "Installing MoltenVK..."
rm -fr "MoltenVK-${MOLTENVK}"
tar xf "v$MOLTENVK.tar.gz"
cd "MoltenVK-${MOLTENVK}"
./fetchDependencies --macos
make macos
cp Package/Latest/MoltenVK/dynamic/dylib/macOS/libMoltenVK.dylib "$INSTALLDIR/lib/"
cd ..

echo "Installing Qt Base..."
rm -fr "qtbase-everywhere-src-$QT"
tar xf "qtbase-everywhere-src-$QT.tar.xz"
cd "qtbase-everywhere-src-$QT"
# since we don't have a direct reference to QtSvg, it doesn't deployed directly from the main binary
# (only indirectly from iconengines), and the libqsvg.dylib imageformat plugin does not get deployed.
# We could run macdeployqt twice, but that's even more janky than patching it.
patch -u src/tools/macdeployqt/shared/shared.cpp <<EOF
--- shared.cpp
+++ shared.cpp
@@ -1119,14 +1119,8 @@
         addPlugins(QStringLiteral("networkinformation"));
     }
 
-    // All image formats (svg if QtSvg is used)
-    const bool usesSvg = deploymentInfo.containsModule("Svg", libInfix);
-    addPlugins(QStringLiteral("imageformats"), [usesSvg](const QString &lib) {
-        if (lib.contains(QStringLiteral("qsvg")) && !usesSvg)
-            return false;
-        return true;
-    });
-
+    // All image formats
+    addPlugins(QStringLiteral("imageformats"));
     addPlugins(QStringLiteral("iconengines"));
 
     // Platforminputcontext plugins if QtGui is in use
EOF
cmake -B build "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL" -DFEATURE_dbus=OFF -DFEATURE_framework=OFF -DFEATURE_icu=OFF -DFEATURE_opengl=OFF -DFEATURE_printsupport=OFF -DFEATURE_sql=OFF -DFEATURE_gssapi=OFF -DFEATURE_system_png=ON -DFEATURE_system_jpeg=ON -DFEATURE_system_zlib=ON
make -C build "-j$NPROCS"
make -C build install
cd ..

echo "Installing Qt SVG..."
rm -fr "qtsvg-everywhere-src-$QT"
tar xf "qtsvg-everywhere-src-$QT.tar.xz"
cd "qtsvg-everywhere-src-$QT"
mkdir build
cd build
"$INSTALLDIR/bin/qt-configure-module" .. -- "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL"
make "-j$NPROCS"
make install
cd ../..

echo "Installing Qt Image Formats..."
rm -fr "qtimageformats-everywhere-src-$QT"
tar xf "qtimageformats-everywhere-src-$QT.tar.xz"
cd "qtimageformats-everywhere-src-$QT"
mkdir build
cd build
"$INSTALLDIR/bin/qt-configure-module" .. -- "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL" -DFEATURE_system_webp=ON
make "-j$NPROCS"
make install
cd ../..

echo "Installing Qt Tools..."
rm -fr "qttools-everywhere-src-$QT"
tar xf "qttools-everywhere-src-$QT.tar.xz"
cd "qttools-everywhere-src-$QT"
# Linguist relies on a library in the Designer target, which takes 5-7 minutes to build on the CI
# Avoid it by not building Linguist, since we only need the tools that come with it
patch -u src/linguist/CMakeLists.txt <<EOF
--- src/linguist/CMakeLists.txt
+++ src/linguist/CMakeLists.txt
@@ -14,7 +14,7 @@
 add_subdirectory(lrelease-pro)
 add_subdirectory(lupdate)
 add_subdirectory(lupdate-pro)
-if(QT_FEATURE_process AND QT_FEATURE_pushbutton AND QT_FEATURE_toolbutton AND TARGET Qt::Widgets AND NOT no-png)
+if(QT_FEATURE_process AND QT_FEATURE_pushbutton AND QT_FEATURE_toolbutton AND TARGET Qt::Widgets AND TARGET Qt::PrintSupport AND NOT no-png)
     add_subdirectory(linguist)
 endif()
EOF
mkdir build
cd build
"$INSTALLDIR/bin/qt-configure-module" .. -- "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL" -DFEATURE_assistant=OFF -DFEATURE_clang=OFF -DFEATURE_designer=OFF -DFEATURE_kmap2qmap=OFF -DFEATURE_pixeltool=OFF -DFEATURE_pkg_config=OFF -DFEATURE_qev=OFF -DFEATURE_qtattributionsscanner=OFF -DFEATURE_qtdiag=OFF -DFEATURE_qtplugininfo=OFF
make "-j$NPROCS"
make install
cd ../..

echo "Installing Qt Translations..."
rm -fr "qttranslations-everywhere-src-$QT"
tar xf "qttranslations-everywhere-src-$QT.tar.xz"
cd "qttranslations-everywhere-src-$QT"
mkdir build
cd build
"$INSTALLDIR/bin/qt-configure-module" .. -- "${CMAKE_COMMON[@]}" "$CMAKE_ARCH_UNIVERSAL"
make "-j$NPROCS"
make install
cd ../..

echo "Cleaning up..."
cd ..
rm -rf deps-build