# This base image is also known as "crosscompile". See arm64.crosscompile.Dockerfile
FROM ghcr.io/itrooz/macos-crosscompile:clang19-nosdk as build

ENV MACOSX_DEPLOYMENT_TARGET 13.0

# -- DOWNLOADING STUFF

# Update vcpkg
RUN <<EOF
cp /vcpkg/triplets/community/arm-osx-mytriplet.cmake /tmp/arm-osx-mytriplet.cmake
git -C /vcpkg clean -ffdx
git -C /vcpkg checkout origin/master
git -C /vcpkg reset --hard
git -C /vcpkg pull
/vcpkg/bootstrap-vcpkg.sh
cp /tmp/arm-osx-mytriplet.cmake /vcpkg/triplets/community/arm-osx-mytriplet.cmake
EOF

## Install make
RUN --mount=type=cache,target=/var/lib/apt/lists/ apt update && apt install -y make

## fix environment
### add install_name_tool for cmake command that won't have the right env set (see PostprocessBundle.cmake function postprocess_bundle())
RUN cp /osxcross/build/cctools-port/cctools/misc/install_name_tool /usr/bin/install_name_tool
### a cmake thing wants 'otool' and not '' apparently
RUN cp /osxcross/target/bin/aarch64-apple-darwin23-otool /usr/bin/otool

## Clone glfw
RUN <<EOF
set -xe
if [ "$CUSTOM_GLFW" ]; then
    git clone https://github.com/glfw/glfw /mnt/glfw
fi
EOF

RUN --mount=type=cache,target=/cache <<EOF
## Download SDK is missing (it may have been removed from the image)
set -xe
if [ ! -d /osxcross/target/SDK/MacOSX14.0.sdk ]; then
    wget https://github.com/joseluisq/macosx-sdks/releases/download/14.0/MacOSX14.0.sdk.tar.xz -O /cache/MacOSX14.0.sdk.tar.xz -nc || true
    mkdir -p /osxcross/target/SDK
    tar -C /osxcross/target/SDK -xf /cache/MacOSX14.0.sdk.tar.xz
fi
EOF


## Download libmagic
### Clone libmagic
RUN git clone --depth 1 --branch FILE5_46 https://github.com/file/file /mnt/file
### Download libmagic dependencies
RUN --mount=type=cache,target=/var/lib/apt/lists/ apt update && apt install -y libtool autoconf

# -- DOWNLOADING + BUILDING STUFF

ENV VCPKG_DEFAULT_BINARY_CACHE /cache/vcpkg
RUN --mount=type=cache,target=/cache <<EOF
## Install dependencies with vcpkg
set -xe

mkdir -p $VCPKG_DEFAULT_BINARY_CACHE

vcpkg install --triplet=arm-osx-mytriplet curl
vcpkg install --triplet=arm-osx-mytriplet mbedtls
vcpkg install --triplet=arm-osx-mytriplet freetype
vcpkg install --triplet=arm-osx-mytriplet josuttis-jthread
vcpkg install --triplet=arm-osx-mytriplet zlib
vcpkg install --triplet=arm-osx-mytriplet bzip2
vcpkg install --triplet=arm-osx-mytriplet liblzma
vcpkg install --triplet=arm-osx-mytriplet zstd
EOF

## Install glfw3 dep
ARG CUSTOM_GLFW
RUN --mount=type=cache,target=/cache <<EOF
set -xe
if [ "$CUSTOM_GLFW" ]; then
    echo "Flag confirmation: using custom GLFW for software rendering"
else
    echo "Flag confirmation: using system GLFW"
    vcpkg install --triplet=arm-osx-mytriplet glfw3
fi
EOF

# -- BUILDING STUFF
ARG JOBS 1
ARG BUILD_TYPE Debug

## Build libmagic
RUN --mount=type=cache,target=/cache <<EOF
    ccache -zs
    set -xe
    
    cd /mnt/file
    autoreconf -is

    # when cross-compiling, libmagic needs to have an the same version installed in the system.
    # So we install it normally first
    ./configure --prefix /usr
    make -j $JOBS install

    # Now, we cross-compile it and install it in the libraries folder
    CC=/osxcross/target/bin/aarch64-apple-darwin23-clang CXX=/osxcross/target/bin/aarch64-apple-darwin23-clang++ ./configure --prefix /vcpkg/installed/arm-osx-mytriplet --host $OSXCROSS_HOST
    make -j $JOBS
    make install

    ccache -s
    
EOF

## Patch glfw
COPY --from=imhex /dist/macOS/0001-glfw-SW.patch /tmp
RUN <<EOF
set -xe
if [ "$CUSTOM_GLFW" ]; then
    cd /mnt/glfw
    git apply /tmp/0001-glfw-SW.patch
fi
EOF

RUN mkdir -p /vcpkg/installed/arm-osx-mytriplet/lib/pkgconfig
RUN mkdir -p /osxcross/target/macports/pkgs/vcpkg/installed/arm-osx-mytriplet/lib/pkgconfig

## Build glfw
RUN --mount=type=cache,target=/cache <<EOF
set -xe
if [ "$CUSTOM_GLFW" ]; then
    ccache -zs

    cd /mnt/glfw
    mkdir build
    cd build
    CC=o64-clang CXX=o64-clang++ cmake -G "Ninja"       \
          -DCMAKE_BUILD_TYPE=$BUILD_TYPE                \
          -DBUILD_SHARED_LIBS=ON                        \
          -DCMAKE_C_COMPILER_LAUNCHER=ccache            \
          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache          \
          -DCMAKE_OBJC_COMPILER_LAUNCHER=ccache         \
          -DCMAKE_OBJCXX_COMPILER_LAUNCHER=ccache       \
          -DCMAKE_INSTALL_PREFIX=/vcpkg/installed/arm-osx-mytriplet \
          -DVCPKG_TARGET_TRIPLET=arm-osx-mytriplet -DCMAKE_TOOLCHAIN_FILE=/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=/osxcross/target/toolchain.cmake -DCMAKE_OSX_SYSROOT=/osxcross/target/SDK/MacOSX14.0.sdk -DCMAKE_OSX_DEPLOYMENT_TARGET=13.0 \
        ..
    ninja -j $JOBS install

    ccache -s
fi
EOF

# Build ImHex
## Copy ImHex
COPY --from=imhex / /mnt/ImHex
## Patch ImHex with hacks
# COPY toolchain.cmake.2 /osxcross/target/toolchain.cmake
# Configure ImHex build
RUN --mount=type=cache,target=/cache --mount=type=cache,target=/mnt/ImHex/build/_deps \
    cd /mnt/ImHex && \
    # compilers
    CC=o64-clang CXX=o64-clang++ OBJC=/osxcross/target/bin/aarch64-apple-darwin23-clang OBJCXX=/osxcross/target/bin/aarch64-apple-darwin23-clang++ \
        cmake -G "Ninja" \
        `# ccache flags` \
        -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_OBJC_COMPILER_LAUNCHER=ccache -DCMAKE_OBJCXX_COMPILER_LAUNCHER=ccache \
        `# MacOS cross-compiling flags` \
        -DVCPKG_TARGET_TRIPLET=arm-osx-mytriplet -DCMAKE_TOOLCHAIN_FILE=/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=/osxcross/target/toolchain.cmake -DCMAKE_OSX_SYSROOT=/osxcross/target/SDK/MacOSX14.0.sdk -DCMAKE_OSX_DEPLOYMENT_TARGET=13.0 \
        `# Override compilers for code generators` \
        -DNATIVE_CMAKE_C_COMPILER=/usr/bin/clang -DNATIVE_CMAKE_CXX_COMPILER=/usr/bin/clang++ \
        `# Normal ImHex flags` \
        -DIMHEX_GENERATE_PACKAGE=ON -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
        `# other flags` \
        -DIMHEX_STRICT_WARNINGS=OFF \
        -DCMAKE_INSTALL_PREFIX=/mnt/ImHex/build/install \
        -B build
## Build ImHex
RUN --mount=type=cache,target=/cache --mount=type=cache,target=/mnt/ImHex/build/_deps <<EOF
    ccache -zs
    set -xe

    cd /mnt/ImHex
    cmake --build build --parallel $JOBS --target install

    ccache -s
EOF


FROM scratch
COPY --from=build /mnt/ImHex/build/install/imhex.app imhex.app