name: "Release docker images from release"

on:
  workflow_dispatch:
    inputs:
      release_tag:
        description: 'The release tag to build containers for (preview or x.y.z)'
        required: true


jobs:
  build_docker_image:
    name: Build docker images
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    strategy:
      matrix:
         bin: [maker,taker]
    env:
      GITHUB_TOKEN: ${{ secrets.ITCHY_GITHUB_TOKEN }}
    steps:
      - name: Checkout tagged commit
        uses: actions/checkout@v2.4.0
        with:
          ref: ${{ github.event.inputs.release_tag }}
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up docker buildx
        uses: docker/setup-buildx-action@v1

      - name: Login into github registry
        uses: docker/login-action@v1.10.0
        with:
          registry: ghcr.io
          username:  ${{ github.repository }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Download release
        run: |
          gh release download ${{ github.event.inputs.release_tag }} -p '${{matrix.bin}}*Linux_x86_64*' -p '${{matrix.bin}}*aarch64*' -p '${{matrix.bin}}*armv7*'

      - name: Unpack archives
        run: |
          # We need to extract into sub folders to so that our dockerimage can fine the binaries.
          #
          # By providing `platform` to `docker buildx` the variable `TARGETPLATFORM` will be available
          # when building the image. This variable is either
          # `linux/amd64/`, `linux/arm64/` or `linux/arm/v7`. Hence we need to extract into subfolders.

          7z x ${{matrix.bin}}_${{ github.event.inputs.release_tag }}_Linux_aarch64.tar -olinux/arm64/

          7z x ${{matrix.bin}}_${{ github.event.inputs.release_tag }}_Linux_x86_64.tar -olinux/amd64/

          7z x ${{matrix.bin}}_${{ github.event.inputs.release_tag }}_Linux_armv7.tar -olinux/arm/v7

      - name: Build docker image for ${{matrix.bin}}
        run: |
          VERSION=${{ github.event.inputs.release_tag }}

          if [ "$VERSION" = "preview" ]; then
              VERSION=latest
          fi

          docker buildx build \
              --push \
              --platform linux/amd64,linux/arm64,linux/arm/v7 \
              --label "org.opencontainers.image.source https://github.com/${{ github.repository }}" \
              --tag ghcr.io/${{ github.repository }}/${{matrix.bin}}:${VERSION} \
              --build-arg BINARY_PATH=${{matrix.bin}} \
              .