# Raspbian Stretch armhf build environment for gplan.so
# Matches the Pi exactly: GCC 6.3, Python 3.5, GLIBC 2.24
#
# Build image:  docker build -t onefin-gplan -f .pi/Dockerfile.gplan .pi/
# Build gplan:  .pi/build-gplan.sh
FROM balenalib/raspberry-pi-debian:stretch

# Fix repos to use archived Raspbian mirrors
RUN echo "deb http://legacy.raspbian.org/raspbian/ stretch main contrib non-free rpi" \
      > /etc/apt/sources.list && \
    rm -f /etc/apt/sources.list.d/*.list

RUN apt-get -o Acquire::Check-Valid-Until=false \
      -o Acquire::AllowInsecureRepositories=true update && \
    apt-get -o Acquire::Check-Valid-Until=false --allow-unauthenticated \
      install -y --no-install-recommends \
      build-essential python3-dev scons git ca-certificates \
      libssl-dev libexpat1-dev libbz2-dev liblz4-dev zlib1g-dev perl file && \
    rm -rf /var/lib/apt/lists/*

# Clone and build cbang
RUN mkdir -p /opt/cbang && cd /opt/cbang && git init -q && \
    git remote add origin https://github.com/CauldronDevelopmentLLC/cbang && \
    git fetch --depth 1 -q origin 18f1e963107ef26abe750c023355a5c40dd07853 && \
    git reset --hard FETCH_HEAD -q && \
    scons -j2 disable_local="re2 libevent" && \
    rm -rf .git build/dep

# Clone, patch, and build camotics/gplan
RUN mkdir -p /opt/camotics && cd /opt/camotics && git init -q && \
    git remote add origin https://github.com/CauldronDevelopmentLLC/camotics && \
    git fetch --depth 1 -q origin ec876c80d20fc19837133087cef0c447df5a939d && \
    git reset --hard FETCH_HEAD -q && \
    mkdir -p build && touch build/version.txt && \
    P="src/gcode/plan" && \
    for F in LineCommand.cpp LinePlanner.cpp; do \
      for V in maxVel maxJerk maxAccel; do \
        perl -i -0pe "s/(fabs\((config\.$V\[axis\]) \/ unit\[axis\]\));/std::min(\2, \1);/gm" $P/$F; \
      done; \
    done && \
    rm -rf .git

ENV CBANG_HOME=/opt/cbang

# Pre-compile everything including gplan.so
RUN cd /opt/camotics && scons -j2 gplan.so with_gui=0 with_tpl=0

WORKDIR /opt/camotics