# We need an old ubuntu version with an old enough gcc to build an old gcc...
# This gcc can't bootstrap itself because it's target is another platform.
FROM ubuntu:bionic AS compiler-builder

RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive TZ=Europe/Berlin apt-get install -y --no-install-recommends \
    build-essential \
    git \
    ca-certificates \
    cmake \
    bison \
    flex \
    libgmp3-dev \
    libmpc-dev \
    libmpfr-dev \
    texinfo \
    libisl-dev \
    wget \
 && apt-get clean

ARG GCCVERSION=5.4.0
ARG BINUTILSVERSION=2.26.1
ARG CROSSPREFIX=/opt/crosscompiler
ARG CROSSTARGET=i386-elf

# Build Binutils for cross-compilation
WORKDIR /
RUN wget https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILSVERSION.tar.gz \
 && tar xf binutils-$BINUTILSVERSION.tar.gz
RUN mkdir binutils-build && cd binutils-build \
 && /binutils-$BINUTILSVERSION/configure --target=$CROSSTARGET --prefix="$CROSSPREFIX" --with-sysroot --disable-nls --disable-werror \
 && make -j$(nproc) \
 && make install

# Build GCC for cross-compilation
WORKDIR /
RUN wget https://ftp.gnu.org/gnu/gcc/gcc-$GCCVERSION/gcc-$GCCVERSION.tar.gz \
 && tar xf gcc-$GCCVERSION.tar.gz \
 && cd gcc-$GCCVERSION \
 && contrib/download_prerequisites
RUN mkdir gcc-build && cd gcc-build \
 && PATH="$CROSSPREFIX/bin:$PATH" /gcc-$GCCVERSION/configure --target=$CROSSTARGET --prefix="$CROSSPREFIX" --disable-nls --enable-languages=c,c++ --without-headers --disable-hosted-libstdcxx --disable-libsanitizer --disable-threads \
 && PATH="$CROSSPREFIX/bin:$PATH" make all-gcc -j$(nproc) \
 && PATH="$CROSSPREFIX/bin:$PATH" make all-target-libgcc -j$(nproc) \
 && PATH="$CROSSPREFIX/bin:$PATH" make install-gcc \
 && PATH="$CROSSPREFIX/bin:$PATH" make install-target-libgcc
 # && PATH="$CROSSPREFIX/bin:$PATH" make all-target-libstdc++-v3 -j$(nproc) \
 # && PATH="$CROSSPREFIX/bin:$PATH" make install-target-libstdc++-v3

# Build newlib in the gcc prefix - don't need to specify include paths
ARG NEWLIBVERSION=4.1.0
WORKDIR /
RUN wget ftp://sourceware.org/pub/newlib/newlib-$NEWLIBVERSION.tar.gz \
 && tar xf newlib-$NEWLIBVERSION.tar.gz
RUN mkdir newlib-build && cd newlib-build \
 && PATH="$CROSSPREFIX/bin:$PATH" /newlib-$NEWLIBVERSION/configure \
    --target=$CROSSTARGET \
    --prefix="$CROSSPREFIX" \
    --disable-nls \
    --disable-newlib-supplied-syscalls \
 && PATH="$CROSSPREFIX/bin:$PATH" make -j$(nproc) \
 && PATH="$CROSSPREFIX/bin:$PATH" make install

# =============================================================================

FROM ubuntu:noble AS wamr-builder

RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive TZ=Europe/Berlin apt-get install -y --no-install-recommends \
    build-essential \
    gcc-multilib \
    g++-multilib \
    libgcc-11-dev \
    lib32gcc-11-dev \
    libc6-dev-i386 \
    busybox \
    git \
    ca-certificates \
    cmake \
    ccache \
    python3-minimal \
    python3-pip \
    ninja-build \
    wget \
 && apt-get clean

RUN python3 -m pip config set global.break-system-packages true

# Clone WAMR
RUN git clone https://gitea.vps.chriphost.de/christoph/wamr \
 && cd wamr \
 && git checkout WAMR-2.4.4

# Build WAMR iwasm (vmcore standalone interpreter)
WORKDIR /wamr
RUN cd product-mini/platforms/linux \
 && mkdir build_iwasm && cd build_iwasm \
 && cmake \
    -DWAMR_BUILD_PLATFORM=linux \
    -DWAMR_BUILD_TARGET=X86_64 \
    -DWAMR_BUILD_AOT=0 \
    -DWAMR_BUILD_WAMR_COMPILER=0 \
    -DWAMR_BUILD_INTERP=1 \
    -DWAMR_BUILD_FAST_INTERP=0 \
    -DWAMR_BUILD_JIT=0 \
    -DWAMR_BUILD_FAST_JIT=0 \
    -DWAMR_BUILD_LIBC_BUILTIN=1 \
    -DWAMR_BUILD_LIBC_WASI=1 \
    .. \
 && make -j$(nproc)

# Build WAMR wamrc (standalone compiler)
WORKDIR /wamr
RUN cd wamr-compiler \
 && ./build_llvm.sh \
 && mkdir build_wamrc && cd build_wamrc \
 && cmake \
    -DWAMR_BUILD_PLATFORM=linux \
    -DWAMR_BUILD_TARGET=X86_64 \
    -DWAMR_BUILD_AOT=0 \
    -DWAMR_BUILD_WAMR_COMPILER=1 \
    -DWAMR_BUILD_INTERP=0 \
    -DWAMR_BUILD_FAST_INTERP=0 \
    -DWAMR_BUILD_JIT=0 \
    -DWAMR_BUILD_FAST_JIT=0 \
    -DWAMR_BUILD_LIBC_BUILTIN=1 \
    -DWAMR_BUILD_LIBC_WASI=1 \
    .. \
 && make -j$(nproc)

# The libs might change often, so re-clone the repository each time.
# We don't want this for iwasm/wamrc because their builds take longer.
ARG CACHE_DATE=1970-01-01

# Clone WAMR
WORKDIR /
RUN git clone https://gitea.vps.chriphost.de/christoph/wamr wamrlib \
 && cd wamrlib \
 && git checkout WAMR-2.4.4

# TODO: Should this stuff not be compiled with the crosscompiler?

# Build WAMR libvmlib (compiler runtime - to compile wasm modules embedded in a native application)
# WORKDIR /wamrlib
# RUN cd wamr-compiler \
#  && ./build_llvm.sh \
#  # && ./build_llvm.sh --extra-cmake-flags "-DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32 -DCMAKE_EXE_LINKER_FLAGS=-m32 -lstdc++" \
#  && mkdir build_libvmlib && cd build_libvmlib \
#  && cmake \
#     -DWAMR_BUILD_PLATFORM=baremetal \
#     -DWAMR_BUILD_TARGET=X86_32 \
#     -DWAMR_BUILD_AOT=1 \
#     -DWAMR_BUILD_WAMR_COMPILER=0 \
#     -DWAMR_BUILD_INTERP=0 \
#     -DWAMR_BUILD_FAST_INTERP=0 \
#     -DWAMR_BUILD_JIT=0 \
#     -DWAMR_BUILD_FAST_JIT=0 \
#     -DWAMR_BUILD_LIBC_BUILTIN=1 \
#     -DWAMR_BUILD_LIBC_WASI=0 \
#     -DWAMR_BUILD_SIMD=0 \
#     .. \
#  && make -j$(nproc)

# Build WAMR libiwasm (vmcore interpreter runtime - to run wasm modules embedded in a native application)
# TODO: Should probably put the cross-compilation definitions in a toolchain file
COPY --from=compiler-builder /opt/crosscompiler /opt/crosscompiler
WORKDIR /wamrlib
RUN mkdir build_libiwasm && cd build_libiwasm \
 && cmake \
    -DCMAKE_SYSTEM_NAME=Generic \
    -DCMAKE_SYSTEM_PROCESSOR=i386 \
    -DCMAKE_C_COMPILER=/opt/crosscompiler/bin/i386-elf-gcc \
    -DCMAKE_CXX_COMPILER=/opt/crosscompiler/bin/i386-elf-g++ \
    -DCMAKE_ASM_COMPILER=/opt/crosscompiler/bin/i386-elf-gcc \
    -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY \
    -DCMAKE_BUILD_TYPE=Debug \
    -DCMAKE_VERBOSE_MAKEFILE=ON \
    -DWAMR_BUILD_PLATFORM=baremetal \
    -DWAMR_BUILD_TARGET=X86_32 \
    -DWAMR_BUILD_AOT=1 \
    -DWAMR_BUILD_WAMR_COMPILER=0 \
    -DWAMR_BUILD_INTERP=1 \
    -DWAMR_BUILD_FAST_INTERP=0 \
    -DWAMR_BUILD_JIT=0 \
    -DWAMR_BUILD_FAST_JIT=0 \
    -DWAMR_BUILD_LIBC_BUILTIN=1 \
    -DWAMR_BUILD_LIBC_WASI=0 \
    -DWAMR_BUILD_SIMD=0 \
    -DCMAKE_COLOR_DIAGNOSTICS=ON \
    .. \
 && make -j$(nproc)

# Build WAMR libiwasm for the host system
WORKDIR /wamrlib
RUN mkdir build_libiwasm_linux && cd build_libiwasm_linux \
 && cmake \
    -DWAMR_BUILD_PLATFORM=linux \
    -DWAMR_BUILD_TARGET=X86_32 \
    -DWAMR_BUILD_AOT=1 \
    -DWAMR_BUILD_WAMR_COMPILER=0 \
    -DWAMR_BUILD_INTERP=1 \
    -DWAMR_BUILD_FAST_INTERP=0 \
    -DWAMR_BUILD_JIT=0 \
    -DWAMR_BUILD_FAST_JIT=0 \
    -DWAMR_BUILD_LIBC_BUILTIN=1 \
    -DWAMR_BUILD_LIBC_WASI=0 \
    -DWAMR_BUILD_SIMD=0 \
    -DCMAKE_COLOR_DIAGNOSTICS=ON \
    .. \
 && make -j$(nproc)

# =============================================================================

FROM ghcr.io/webassembly/wasi-sdk:wasi-sdk-29

RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive TZ=Europe/Berline apt-get install -y --no-install-recommends \
    build-essential \
    gcc-multilib \
    busybox \
    git \
    ca-certificates \
    wget \
    neovim \
    ranger \
    wabt \
    gdb \
    valgrind \
    fish \
    grub-common \
    xorriso \
    grub-pc-bin \
    bochs \
    less \
 && apt-get clean

COPY --from=compiler-builder /opt/crosscompiler /opt/crosscompiler
COPY --from=wamr-builder /wamrlib /opt/wamr
COPY --from=wamr-builder /wamr/wamr-compiler/build_wamrc /opt/wamr/wamr-compiler/build_wamrc
COPY --from=wamr-builder /wamr/product-mini/platforms/linux/build_iwasm /opt/wamr/product-mini/platforms/linux/build_iwasm
RUN ln -sf /opt/wamr/product-mini/platforms/linux/build_iwasm /opt/wamr-iwasm \
 && ln -sf /opt/wamr/wamr-compiler/build_wamrc /opt/wamr-wamrc \
 && ln -sf /opt/wamr/wamr-compiler/build_libvmlib /opt/wamr-libvmlib \
 && ln -sf /opt/wamr/build_libiwasm /opt/wamr-libiwasm \
 && ln -sf /opt/wamr/build_libiwasm_linux /opt/wamr-libiwasm-linux

RUN useradd fail \
 && mkdir /home/fail && chown fail /home/fail \
 && echo 'fail:fail' | chpasswd && chsh fail --shell /usr/bin/fish \
 && adduser fail sudo

COPY ./examples /home/fail/examples
WORKDIR /home/fail/examples

ENV PATH="$PATH:/opt/wasi-sdk/bin:/opt/wamr-iwasm:/opt/wamr-wamrc"