# syntax=docker/dockerfile:1.6
ARG DEBIAN_IMAGE=debian:bookworm-slim
ARG P2POOL_VERSION=v4.9

FROM ${DEBIAN_IMAGE} AS fetch
ARG TARGETARCH
ARG P2POOL_VERSION

RUN set -eux; \
    apt-get update; \
    apt-get install -y --no-install-recommends ca-certificates curl jq xz-utils tar unzip; \
    update-ca-certificates; \
    rm -rf /var/lib/apt/lists/*

# Pick the correct asset URL for our arch from the release metadata
RUN set -eux; \
    case "${TARGETARCH:-arm64}" in \
      amd64)  ARCH_RE='(x86_64|amd64)';; \
      arm64)  ARCH_RE='(arm64|aarch64|armv8)';; \
      arm)    ARCH_RE='(arm|armv7|armhf)';; \
      *) echo "Unsupported TARGETARCH=${TARGETARCH}"; exit 1;; \
    esac; \
    API="https://api.github.com/repos/SChernykh/p2pool/releases/tags/${P2POOL_VERSION}"; \
    URL="$(curl -fsSL "$API" | jq -r --arg re "$ARCH_RE" \
            '.assets[] | select((.name|test("linux")) and (.name|test($re))) | .browser_download_url' | head -n1)"; \
    test -n "$URL"; \
    echo "Downloading $URL"; \
    mkdir -p /tmp/p2pool; \
    curl -fsSL "$URL" -o /tmp/p2pool/p2pool.tar; \
    # try both common formats
    ( tar -xOf /tmp/p2pool/p2pool.tar >/dev/null 2>&1 && tar -xf /tmp/p2pool/p2pool.tar -C /tmp/p2pool ) \
      || ( tar -xzf /tmp/p2pool/p2pool.tar -C /tmp/p2pool || tar -xJf /tmp/p2pool/p2pool.tar -C /tmp/p2pool ); \
    # find the p2pool binary and install as a stable name
    P="$(find /tmp/p2pool -maxdepth 2 -type f -name 'p2pool' | head -n1)"; \
    test -n "$P"; \
    install -m 0755 "$P" /usr/local/bin/p2pool

FROM ${DEBIAN_IMAGE}
RUN set -eux; \
    apt-get update; \
    apt-get install -y --no-install-recommends ca-certificates; \
    update-ca-certificates; \
    rm -rf /var/lib/apt/lists/*
COPY --from=fetch /usr/local/bin/p2pool /usr/local/bin/p2pool

EXPOSE 3333
ENTRYPOINT ["p2pool"]