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 \
    libunwind-dev \
    libdwarf-dev

# Set working directory
WORKDIR /build

COPY CMakeLists.txt cmake_prebuild.sh ./ 
#COPY cmake ./cmake
COPY src/version.hpp.in ./src/version.hpp.in

# Configure and build with ccache
RUN mkdir -p build_static && \
    cmake -G Ninja -B build_static -DCMAKE_BUILD_TYPE=Debug \
    -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 \
    -DCPPTRACE_UNWIND_WITH_UNWIND=ON \
    -DCPPTRACE_GET_SYMBOLS_WITH_LIBDWARF=ON \
    -DPROJECT_NAME="${PROJECT}" \
    ${CMAKE_TOOLCHAIN_FILE:+-DCMAKE_TOOLCHAIN_FILE=$CMAKE_TOOLCHAIN_FILE}


# Explicitly build dependencies first (cached separately)
RUN cmake --build build_static --target run_prebuild_script

# Copy source files
COPY src ./build_static/src

RUN cmake --build build_static

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

ARG PROJECT

COPY --from=builder /build/build_static/${PROJECT} /${PROJECT}