#!/usr/bin/env bash

set -xe

SOURCE=$1
TAG=$(echo $2 | sed 's/\//-/g')
NAME=$3

require_input() {
    input=$1
    name=$2

    if [ "$input" == "" ]; then
        echo "Input, $name, required but not present"
        exit 1;
    fi
}

require_input "$SOURCE" "Dockerfile"
require_input "$TAG" "image tag"
require_input "$NAME" "image name"

ARCHITECTURES=('arm64v8')

for architecture in "${ARCHITECTURES[@]}"; do
    cp "$SOURCE" "$SOURCE-$architecture"
    if [ "$architecture" == arm32v7 ]; then
        sed -i'' 's/:amd64/:arm32v7/g' "$SOURCE-$architecture" # source image
        sed -i'' 's/FROM amd64/FROM arm32v7/g' "$SOURCE-$architecture" # source image
        sed -i'' 's/x64/armv7l/g' "$SOURCE-$architecture" # for node
        sed -i'' 's/amd64/armhf/g' "$SOURCE-$architecture" # for tini
    fi

    if [ "$architecture" == arm64v8 ]; then
        sed -i'' 's/:latest-amd64/:latest-arm64v8/g' "$SOURCE-$architecture" # source image
        sed -i'' 's/FROM amd64/FROM arm64v8/g' "$SOURCE-$architecture" # source image
        sed -i'' 's/x64/arm64/g' "$SOURCE-$architecture" # for node
        sed -i'' 's/amd64/arm64/g' "$SOURCE-$architecture" # for tini
    fi

    docker build \
        --pull \
        --no-cache \
        -f "$SOURCE-$architecture" \
        -t "$NAME:$TAG-$architecture" \
        -t "$NAME:latest-$architecture" \
        .

    docker push "$NAME:$TAG-$architecture"
    docker push "$NAME:latest-$architecture"

    rm "$SOURCE-$architecture"
done