#!/usr/bin/env bash

set -eo pipefail

image_name="babashka/babashka"
image_tag=$(cat resources/BABASHKA_VERSION)
platform=${PLATFORM:-"linux/amd64"}
latest_tag="latest"
label_args=("--label" "'org.opencontainers.image.description=Native, fast starting Clojure interpreter for scripting'"
            "--label" "org.opencontainers.image.title=Babashka"
            "--label" "org.opencontainers.image.created=$(date -Iseconds)"
            "--label" "org.opencontainers.image.url=${CIRCLE_REPOSITORY_URL}"
            "--label" "org.opencontainers.image.documentation=${CIRCLE_REPOSITORY_URL}"
            "--label" "org.opencontainers.image.source=${CIRCLE_REPOSITORY_URL}"
            "--label" "org.opencontainers.image.revision=${CIRCLE_SHA1}"
            "--label" "org.opencontainers.image.ref.name=${CIRCLE_TAG}:${CIRCLE_BRANCH}"
            "--label" "org.opencontainers.image.version=${image_tag}")

if [[ $image_tag =~ SNAPSHOT$ ]]; then
    echo "This is a snapshot version"
    snapshot="true"
else
    echo "This is a non-snapshot version"
    snapshot="false"
fi

if [ -z "$CIRCLE_PULL_REQUEST" ] && [ "$CIRCLE_BRANCH" = "master" ]; then
    echo "Building & pushing $platform Docker image(s) $image_name:$image_tag"
    echo "$DOCKERHUB_PASS" | docker login -u "$DOCKERHUB_USER" --password-stdin
    IFS=',' read -r -a platforms <<< "$platform"
    for p in "${platforms[@]}"; do
        tarball_platform=${p//\//-}
        if [[ $tarball_platform == "linux-arm64" ]]; then tarball_platform="linux-aarch64"; fi
        mkdir -p $p
        tar zxvf "/tmp/release/babashka-${image_tag}-${tarball_platform}.tar.gz" -C $p
        # this overwrites, but this is to work around having built the uberjar/metabom multiple times
        cp "/tmp/release/${tarball_platform}-metabom.jar" ./metabom.jar
    done
    docker buildx build -t "$image_name:$image_tag" --platform "$platform" "${label_args[@]}" --push -f Dockerfile.ci .
    if [[ $snapshot == "false" ]]; then
        echo "Building & pushing $platform Docker image(s) $image_name:$latest_tag"
        docker buildx build -t "$image_name:$latest_tag" --platform "$platform" "${label_args[@]}" --push -f Dockerfile.ci .
    fi
    for p in "${platforms[@]}"; do
        rm -rf $p
    done

    # build alpine image for linux-amd64 only (no upstream arm64 support yet)
    tar zxvf  "/tmp/release/babashka-${image_tag}-linux-amd64-static.tar.gz"
    echo "Building & pushing Docker image $image_name:$image_tag-alpine"
    docker buildx build -t "$image_name:$image_tag-alpine" --platform=linux/amd64 "${label_args[@]}" --push -f Dockerfile.alpine .
    rm -f bb
    if [[ $snapshot == "false" ]]; then
        echo "Building & pushing Docker image $image_name:alpine"
        docker buildx build -t "$image_name:alpine" --platform=linux/amd64 "${label_args[@]}" --push -f Dockerfile.alpine .
    fi
else
    echo "Not publishing Docker image"
fi

exit 0;