FROM --platform=$BUILDPLATFORM alpine:latest AS builder

ARG PROJECT

# Install ccache along with other dependencies
RUN apk add --no-cache \
    build-base \
    cmake \
    git \
    musl-dev \
    curl \
    bash \
    musl \
    g++ \
    ninja \
    linux-headers \
    mold \
    zlib-static \
    ccache \
    pkgconf \
    pkgconfig \
    libunwind \
    libunwind-dev \
    libunwind-static \
    zlib-dev \
    zlib-static \
    xz \
    xz-dev \
    xz-static \
    xz-libs \
    libdwarf \
    libdwarf-dev \
    elfutils \
    elfutils-dev \
    elfutils-libelf \
    binutils \
    binutils-dev \
    pipx \
    openssl-dev \
    sqlite-dev \
    libpq-dev \
    mariadb-connector-c-dev \
    c-ares-dev \
    jsoncpp-dev \
    ninja \
    util-linux-dev \
    util-linux-static \
    perl 

RUN apk add --no-cahce \
    c-ares-dev \
    c-ares-static 
    
#RUN apk add --no-cache --update --repository=https://dl-cdn.alpinelinux.org/alpine/v3.16/main/ libexecinfo-dev

SHELL ["/bin/bash", "-c"]


# Build OpenSSL statically with musl
ARG OPENSSL_VERSION=3.3.0
WORKDIR /tmp
RUN curl -LO https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz && \
    tar xzf openssl-${OPENSSL_VERSION}.tar.gz && \
    cd openssl-${OPENSSL_VERSION} && \
    ./Configure no-shared no-dso no-tests no-async linux-x86_64 \
      --prefix=/usr/local/openssl-musl \
      -static -fPIC && \
    make -j$(nproc) && \
    make install_sw && \
    cd / && rm -rf /tmp/openssl-${OPENSSL_VERSION} /tmp/openssl-${OPENSSL_VERSION}.tar.gz


#ARG DROGON_VERSION=1.9.5
RUN git clone --recurse-submodules https://github.com/drogonframework/drogon.git /tmp/drogon && \
#RUN git clone --branch v${DROGON_VERSION} --depth 1 https://github.com/drogonframework/drogon.git /tmp/drogon && \
    mkdir -p /tmp/drogon/build && \
    cd /tmp/drogon/build && \
    cmake .. \
      -DCMAKE_BUILD_TYPE=Release \
      -DBUILD_SHARED_LIBS=OFF \
      -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
      -DCMAKE_CXX_FLAGS="-static -static-libgcc -static-libstdc++" \
      -DCMAKE_EXE_LINKER_FLAGS="-static" \
      -DCMAKE_INSTALL_PREFIX=/usr/local \
      -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
      -DUSE_MONGODB=OFF \
      -DUSE_POSTGRESQL=ON \
      -DUSE_MYSQL=ON \
      -DUSE_SQLITE3=ON \
      -DBUILD_EXAMPLES=OFF \
      -DBUILD_TESTING=OFF \
      -DUUID_LIBRARY=/usr/lib/libuuid.a \
      -DOPENSSL_ROOT_DIR=/usr/local/openssl-musl \
      -DOPENSSL_USE_STATIC_LIBS=TRUE \
      &&\
    make -j$(nproc) && \
    make install && \
    cd / && rm -rf /tmp/drogon


# Set working directory
WORKDIR /app

COPY . .

# Configure and build with ccache
RUN  --mount=type=cache,target=/build \
    mkdir -p /build && \
    cmake -G Ninja -S /app -B /build \
    -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} \
    -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
    -DCMAKE_C_COMPILER_LAUNCHER=ccache \
    -DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=mold -static" \
    -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
    -DZLIB_BUILD_SHARED=OFF \
    -DZLIB_BUILD_STATIC=ON \
    -DBUILD_SHARED_LIBS=OFF \
    -DPROJECT_NAME="${PROJECT}" \
    -DCMAKE_STRIP=OFF \
    -DIGNORE_DYNAMIC_LOADING=ON \
    ${CMAKE_TOOLCHAIN_FILE:+-DCMAKE_TOOLCHAIN_FILE=$CMAKE_TOOLCHAIN_FILE}


# Explicitly build dependencies first (cached separately)
RUN --mount=type=cache,target=/build cmake --build /build --target run_prebuild_script

RUN --mount=type=cache,target=/build cmake --build /build

# Copy the built executable to a regular directory for the final stage
RUN --mount=type=cache,target=/build mkdir -p /output && \
    find /build -type f -executable -name "*${PROJECT}*" -exec cp {} /output/${PROJECT} \; || \
    find /build -type f -executable -exec cp {} /output/${PROJECT} \;

# Final stage that only contains the binary
FROM scratch AS project

ARG PROJECT

# Copy the actual binary from the regular directory
COPY --from=builder /output/${PROJECT} /${PROJECT}