#
# Copyright (C) 2020-2023 Lin Song <linsongui@gmail.com>
#
# This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
# Unported License: http://creativecommons.org/licenses/by-sa/3.0/
#
# Attribution required: please include my name in any derivative and let me
# know how you have improved it!

name: buildx

on:
  workflow_call:
    inputs:
      os_type:
        required: true
        type: string
    secrets:
      CACHE_NAME:
        required: true
      DOCKER_TOKEN:
        required: true
      QUAY_USER:
        required: true
      QUAY_TOKEN:
        required: true
      BUILD_ONLY:
        required: true

jobs:
  buildx:
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    steps:
      - uses: actions/checkout@v3
        with:
          persist-credentials: false
      - name: Cache
        uses: actions/cache@v3
        with:
          path: |
            ${{ runner.temp }}/.buildx-bin
            ${{ runner.temp }}/.buildx-cache
            ${{ runner.temp }}/.docker-images
          key: ${{ secrets.CACHE_NAME }}-${{ github.sha }}-${{ github.run_id }}
          restore-keys: |
            ${{ secrets.CACHE_NAME }}-
      - name: Set up Buildx
        env:
          RUNNER_TEMP: ${{ runner.temp }}
        run: |
          [ ! -x /usr/bin/docker ] && exit 1
          if [ ! -x /usr/bin/wget ] || [ ! -x /usr/bin/jq ]; then
            export DEBIAN_FRONTEND=noninteractive
            sudo apt-get -yq update
            sudo apt-get -yq install wget jq
          fi

          BUILDX_VER=$(wget -t 3 -T 30 -qO- "https://api.github.com/repos/docker/buildx/releases/latest" | jq -r ".tag_name")
          [ -z "${BUILDX_VER}" ] && exit 1
          echo "Buildx version: ${BUILDX_VER}"

          DOCKER_DIR="${HOME}/.docker/cli-plugins"
          CACHE_DIR="${RUNNER_TEMP}/.buildx-bin"
          mkdir -p "${DOCKER_DIR}"
          if [ -s "${CACHE_DIR}/docker-buildx-${BUILDX_VER}" ]; then
            echo "Using buildx binary from cache..."
            cp -f "${CACHE_DIR}/docker-buildx-${BUILDX_VER}" "${DOCKER_DIR}/docker-buildx"
          else
            echo "Downloading buildx..."
            BUILDX_URL="https://github.com/docker/buildx/releases/download/${BUILDX_VER}/buildx-${BUILDX_VER}.linux-amd64"
            wget -t 3 -T 30 -nv -O "${DOCKER_DIR}/docker-buildx" "${BUILDX_URL}"
            [ ! -s "${DOCKER_DIR}/docker-buildx" ] && exit 1
            /bin/rm -rf "${CACHE_DIR}"
            mkdir -p "${CACHE_DIR}"
            /bin/cp -f "${DOCKER_DIR}/docker-buildx" "${CACHE_DIR}/docker-buildx-${BUILDX_VER}"
          fi
          chmod a+x "${DOCKER_DIR}/docker-buildx"

          docker info
          docker buildx version

          image_cache_dir="${RUNNER_TEMP}/.docker-images"
          for image in "quay.io/hwdsl2/qemu-user-static:latest" "moby/buildkit:buildx-stable-1"; do
            image_file=$(printf '%s' "${image}.tar.gz" | tr '/' '-' | tr ':' '-')
            if [ -s "${image_cache_dir}/${image_file}" ]; then
              echo "Using ${image} from cache..."
              docker load -i "${image_cache_dir}/${image_file}"
            else
              echo "Downloading ${image}..."
              docker pull -q "${image}"
              mkdir -p "${image_cache_dir}"
              docker save "${image}" | gzip > "${image_cache_dir}/${image_file}"
            fi
          done

          docker run --rm --privileged quay.io/hwdsl2/qemu-user-static:latest --reset -p yes --credential yes
          docker buildx create --name "builder-${GITHUB_SHA::8}" --driver docker-container --use
          docker buildx inspect --bootstrap
      - name: Docker Hub Login
        env:
          DOCKER_USER: ${{ github.repository_owner }}
          DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
        run: echo "$DOCKER_TOKEN" | docker login --username "$DOCKER_USER" --password-stdin 2>&1
      - name: Quay.io Login
        env:
          QUAY_USER: ${{ secrets.QUAY_USER }}
          QUAY_TOKEN: ${{ secrets.QUAY_TOKEN }}
        run: echo "$QUAY_TOKEN" | docker login quay.io --username "$QUAY_USER" --password-stdin 2>&1
      - name: Docker Buildx
        env:
          DOCKER_USER: ${{ github.repository_owner }}
          BUILD_ONLY: ${{ secrets.BUILD_ONLY }}
          RUNNER_TEMP: ${{ runner.temp }}
          OS_TYPE: ${{ inputs.os_type }}
        run: |
          cd "$GITHUB_WORKSPACE"
          pwd
          ls -ld vpn.env.example

          [ "$BUILD_ONLY" = "true" ] && BUILD_ONLY=""
          ts_now=$(date -u +'%Y-%m-%dT%H:%M:%SZ')

          if [ "$OS_TYPE" = "alpine" ]; then
            docker buildx build \
              --progress plain \
              --platform=linux/amd64,linux/arm64,linux/arm/v7 \
              --build-arg BUILD_DATE=$ts_now \
              --build-arg VCS_REF=${GITHUB_SHA::8} \
              --build-arg VERSION=alpine-latest \
              --cache-from type=local,src="${RUNNER_TEMP}/.buildx-cache" \
              --cache-to type=local,dest="${RUNNER_TEMP}/.buildx-cache-new" \
              -t "$DOCKER_USER/ipsec-vpn-server:latest" \
              --pull \
              ${BUILD_ONLY:+--push} \
              .

            docker buildx build \
              --progress plain \
              --platform=linux/amd64,linux/arm64,linux/arm/v7 \
              --build-arg BUILD_DATE=$ts_now \
              --build-arg VCS_REF=${GITHUB_SHA::8} \
              --build-arg VERSION=alpine-latest \
              --cache-from type=local,src="${RUNNER_TEMP}/.buildx-cache-new" \
              -t "quay.io/$DOCKER_USER/ipsec-vpn-server:latest" \
              --pull \
              ${BUILD_ONLY:+--push} \
              .
          elif [ "$OS_TYPE" = "debian" ]; then
            docker buildx build \
              --progress plain \
              --platform=linux/amd64,linux/arm64,linux/arm/v7 \
              --build-arg BUILD_DATE=$ts_now \
              --build-arg VCS_REF=${GITHUB_SHA::8} \
              --build-arg VERSION=debian-latest \
              --cache-from type=local,src="${RUNNER_TEMP}/.buildx-cache" \
              --cache-to type=local,dest="${RUNNER_TEMP}/.buildx-cache-new" \
              -f Dockerfile.debian \
              -t "$DOCKER_USER/ipsec-vpn-server:debian" \
              --pull \
              ${BUILD_ONLY:+--push} \
              .

            docker buildx build \
              --progress plain \
              --platform=linux/amd64,linux/arm64,linux/arm/v7 \
              --build-arg BUILD_DATE=$ts_now \
              --build-arg VCS_REF=${GITHUB_SHA::8} \
              --build-arg VERSION=debian-latest \
              --cache-from type=local,src="${RUNNER_TEMP}/.buildx-cache-new" \
              -f Dockerfile.debian \
              -t "quay.io/$DOCKER_USER/ipsec-vpn-server:debian" \
              --pull \
              ${BUILD_ONLY:+--push} \
              .
          else
            exit 1
          fi

          /bin/rm -rf "${RUNNER_TEMP}/.buildx-cache"
          /bin/mv -f "${RUNNER_TEMP}/.buildx-cache-new" "${RUNNER_TEMP}/.buildx-cache"
      - name: Clear
        if: always()
        run: |
          shred -u "${HOME}/.docker/config.json"
          rm -f "${HOME}/.docker/config.json"
          docker buildx rm "builder-${GITHUB_SHA::8}" || true