name: docker-release

on:
  workflow_dispatch:
    inputs:
      tags:
        description: 'Docker tags'
        required: true
  release:
    types: [published]

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - name: checkout code
        uses: actions/checkout@v3

      - name: Set hash
        id: vars
        run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"

      - name: Get current date
        id: date
        run: echo "::set-output name=date::$(date +'%Y-%m-%d')"

      - name: create-json
        id: create-json
        uses: jsdaniell/create-json@v1.2.2
        with:
          name: "version.json"
          json: '{"type": "docker", "tag": "latest", "commit": "${{ steps.vars.outputs.sha_short }}", "date": "${{ steps.date.outputs.date }}"}'
          dir: 'backend/'

      - name: Set image tag
        id: tags
        run: |
          if [ "${{ github.event.inputs.tags }}" != "" ]; then
            echo "::set-output name=tags::${{ github.event.inputs.tags }}"
          elif [ ${{ github.event.action }} == "release" ]; then
            echo "::set-output name=tags::${{ github.event.release.tag_name }}"
          else
            echo "Unknown workflow trigger: ${{ github.event.action }}! Cannot determine default tag."
            exit 1
          fi

      - name: Generate Docker image metadata
        id: docker-meta
        uses: docker/metadata-action@v4
        with:
          images: |
            ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_REPO }}
            ghcr.io/${{ github.repository_owner }}/${{ secrets.DOCKERHUB_REPO }}
          tags: |
            type=raw,value=${{ steps.tags.outputs.tags }}
            type=raw,value=latest

      - name: setup platform emulator
        uses: docker/setup-qemu-action@v2

      - name: setup multi-arch docker build
        uses: docker/setup-buildx-action@v2

      - name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: build & push images
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64/v8
          push: true
          tags: ${{ steps.docker-meta.outputs.tags }}
          labels: ${{ steps.docker-meta.outputs.labels }}