FROM alpine:3.21 AS base

ARG TARGETARCH

RUN apk update && apk add --no-cache \
    git \
    cmake \
    gcc \
    g++ \
    make \
    linux-headers \
    libuv-dev \
    zeromq-dev \
    curl-dev

FROM base AS build

ARG P2POOL_VERSION
ARG TARGETARCH
ARG BUILDPLATFORM
ARG TARGETPLATFORM

RUN git clone --recursive https://github.com/SChernykh/p2pool /src/p2pool

WORKDIR /src/p2pool

RUN git checkout ${P2POOL_VERSION}

# Determine parallel jobs based on cross-compilation and architecture
RUN mkdir build && cd build && \
    if [ "$BUILDPLATFORM" != "$TARGETPLATFORM" ]; then \
        MAKE_JOBS="-j2"; \
    elif [ "$TARGETARCH" = "amd64" ]; then \
        MAKE_JOBS="-j$(($(nproc) / 2))"; \
    else \
        MAKE_JOBS="-j$(nproc)"; \
    fi && \
    echo "Building with parallel jobs: $MAKE_JOBS (arch: $TARGETARCH, cross-compile: $([ "$BUILDPLATFORM" != "$TARGETPLATFORM" ] && echo yes || echo no))" && \
    cmake .. -DCMAKE_BUILD_TYPE=Release -DWITH_MERGE_MINING_DONATION=OFF && \
    make $MAKE_JOBS

FROM scratch

ARG TARGETARCH

COPY --from=build /src/p2pool/build/p2pool /linux_${TARGETARCH}/p2pool