#!/bin/sh

ARCHS="${ARCHS:-rpi:raspberry-pi armv7hf:raspberry-pi2,raspberrypi3 aarch64:raspberrypi3-64,raspberrypi4-64 i386 amd64}"
DISTROS="${DISTROS:-debian:buster,latest alpine:3.12,latest}"

set -x
set -e

for ARCH in `echo $ARCHS | xargs -n 1 echo | cut -d':' -f 1`; do
  for DISTRO in `echo $DISTROS | xargs -n 1 echo | cut -d':' -f 1`; do
    grep -v '^#' versions | while IFS=' ' read ELIXIR_VERSION ERLANG_MAJOR_VERSION; do
      ELIXIR_MAJOR_VERSION=`echo $ELIXIR_VERSION | awk -F\. '{print $1}'`
      ELIXIR_MAJOR_MINOR_VERSION=`echo $ELIXIR_VERSION | awk -F\. '{print $1 "." $2}'`
      ELIXIR_SHASUM=`grep "elixir-${ELIXIR_VERSION}.tar.gz" shasums | cut -d" " -f 1`

      for DISTRO_TAG in `echo $DISTROS | xargs -n 1 echo | grep "^$DISTRO" | cut -d':' -f 2 | tr "," "\n"`; do
        ARCH_CONTAINER="registry.gitlab.com/jimsy/balena-elixir/$ARCH-$DISTRO-build:${ELIXIR_VERSION}-${DISTRO_TAG}"
        docker pull $ARCH_CONTAINER || true
        docker build \
          --cache-from $ARCH_CONTAINER \
          --build-arg=ARCH=$ARCH \
          --build-arg=DISTRO_TAG=$DISTRO_TAG \
          --build-arg=ELIXIR_VERSION=$ELIXIR_VERSION \
          --build-arg=ELIXIR_SHASUM=$ELIXIR_SHASUM \
          --build-arg=ERLANG_MAJOR_VERSION=$ERLANG_MAJOR_VERSION \
          -t $ARCH_CONTAINER \
          -f $DISTRO/Dockerfile.arch-build \
          $DISTRO

        docker push $ARCH_CONTAINER

        ARCH_CONTAINER_MAJOR_MINOR_VERSION="registry.gitlab.com/jimsy/balena-elixir/$ARCH-$DISTRO-build:${ELIXIR_MAJOR_MINOR_VERSION}-${DISTRO_TAG}"
        docker tag $ARCH_CONTAINER $ARCH_CONTAINER_MAJOR_MINOR_VERSION
        docker push $ARCH_CONTAINER_MAJOR_MINOR_VERSION

        ARCH_RUN_CONTAINER="registry.gitlab.com/jimsy/balena-elixir/$ARCH-$DISTRO:${ELIXIR_VERSION}-${DISTRO_TAG}"
        docker pull $ARCH_RUN_CONTAINER || true
        docker build \
          --cache-from $ARCH_RUN_CONTAINER \
          --build-arg=ARCH=$ARCH \
          --build-arg=DISTRO_TAG=$DISTRO_TAG \
          --build-arg=ELIXIR_VERSION=$ELIXIR_VERSION \
          -t $ARCH_RUN_CONTAINER \
          -f $DISTRO/Dockerfile.arch-run \
          $DISTRO

        docker push $ARCH_RUN_CONTAINER

        ARCH_RUN_CONTAINER_MAJOR_MINOR_VERSION="registry.gitlab.com/jimsy/balena-elixir/$ARCH-$DISTRO:${ELIXIR_MAJOR_MINOR_VERSION}-${DISTRO_TAG}"
        docker tag $ARCH_RUN_CONTAINER $ARCH_RUN_CONTAINER_MAJOR_MINOR_VERSION
        docker push $ARCH_RUN_CONTAINER_MAJOR_MINOR_VERSION

        for PLATFORM in `echo $ARCHS | xargs -n 1 echo | grep "^$ARCH:" | cut -d':' -f 2 | tr "," "\n" | grep -v "^$ARCH$"`; do
          BUILD_CONTAINER="registry.gitlab.com/jimsy/balena-elixir/$PLATFORM-$DISTRO-build:${ELIXIR_VERSION}-${DISTRO_TAG}"
          docker pull $BUILD_CONTAINER || true
          docker build \
            --cache-from $BUILD_CONTAINER \
            --build-arg=ARCH=$ARCH \
            --build-arg=DISTRO_TAG=$DISTRO_TAG \
            --build-arg=PLATFORM=$PLATFORM \
            --build-arg=ELIXIR_VERSION=$ELIXIR_VERSION \
            -t $BUILD_CONTAINER \
            -f $DISTRO/Dockerfile.build \
            $DISTRO

          docker push $BUILD_CONTAINER

          BUILD_CONTAINER_MAJOR_MINOR_VERSION="registry.gitlab.com/jimsy/balena-elixir/$PLATFORM-$DISTRO-build:${ELIXIR_MAJOR_MINOR_VERSION}-${DISTRO_TAG}"
          docker tag $BUILD_CONTAINER $BUILD_CONTAINER_MAJOR_MINOR_VERSION
          docker push $BUILD_CONTAINER_MAJOR_MINOR_VERSION

          RUN_CONTAINER="registry.gitlab.com/jimsy/balena-elixir/$PLATFORM-$DISTRO:${ELIXIR_VERSION}-${DISTRO_TAG}"
          docker pull $RUN_CONTAINER || true
          docker build \
            --cache-from $RUN_CONTAINER \
            --build-arg=ARCH=$ARCH \
            --build-arg=DISTRO_TAG=$DISTRO_TAG \
            --build-arg=PLATFORM=$PLATFORM \
            --build-arg=ELIXIR_VERSION=$ELIXIR_VERSION \
            -t $RUN_CONTAINER \
            -f $DISTRO/Dockerfile.run \
            $DISTRO

          docker push $RUN_CONTAINER

          RUN_CONTAINER_MAJOR_MINOR_VERSION="registry.gitlab.com/jimsy/balena-elixir/$PLATFORM-$DISTRO:${ELIXIR_MAJOR_MINOR_VERSION}-${DISTRO_TAG}"
          docker tag $RUN_CONTAINER $RUN_CONTAINER_MAJOR_MINOR_VERSION
          docker push $RUN_CONTAINER_MAJOR_MINOR_VERSION
        done
      done
    done
  done
done