name: Docker Image

on:
  push:
    # Publish `next` as Docker `latest` image.
    branches:
      - next

    # Publish `v1.2.3` tags as releases.
    tags:
      - v*

env:
  IMAGE_NAME: tdb
  BUILD: "false"

jobs:
  # Run tests.
  # See also https://docs.docker.com/docker-hub/builds/automated-testing/
  test:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 2
      - name: Setup environment
        run: |
          chmod +x ci/buildvars.sh
          ci/buildvars.sh
      - name: Build image
        run: docker build . --file Dockerfile --tag $IMAGE_NAME
        if: env.BUILD == 'true' || github.event_name == 'create' && startsWith(github.ref, 'refs/tags/v')
      - name: Push to Docker Hub
        uses: docker/build-push-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: terrabasedb/tdb
          tags: latest
          tag_with_ref: true
        if: env.BUILD == 'true' || github.event_name == 'create' && startsWith(github.ref, 'refs/tags/v')

      - name: Log into GitHub Container Registry
        run: echo "${{ secrets.CR_PAT }}" | docker login https://ghcr.io -u ${{ github.actor }} --password-stdin
        if: env.BUILD == 'true' || github.event_name == 'create' && startsWith(github.ref, 'refs/tags/v')

      - name: Push image to GitHub Container Registry
        run: |
          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME

          # Change all uppercase to lowercase
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')

          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')

          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')

          # Use Docker `latest` tag convention
          [ "$VERSION" == "next" ] && VERSION=latest

          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION

          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
          docker push $IMAGE_ID:$VERSION
        if: env.BUILD == 'true' || github.event_name == 'create' && startsWith(github.ref, 'refs/tags/v')