name: Docker

on:
  schedule:
    - cron: '0 10 * * *' # everyday at 10am
  push:
    branches:
      - master
    tags:
      - v*
  pull_request:

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Gather image information
        id: info
        run: |
          DOCKER_IMAGE=ghcr.io/drakkan/sftpgo
          VERSION=noop
          if [ "${{ github.event_name }}" = "schedule" ]; then
            VERSION=nightly
          elif [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
          elif [[ $GITHUB_REF == refs/heads/* ]]; then
            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
            if [ "${{ github.event.repository.default_branch }}" = "$VERSION" ]; then
              VERSION=edge
            fi
          elif [[ $GITHUB_REF == refs/pull/* ]]; then
            VERSION=pr-${{ github.event.number }}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi
          echo ::set-output name=version::${VERSION}
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          echo ::set-output name=sha::${GITHUB_SHA::8}

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

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

#      - name: Login to GitHub Container Registry
#        uses: docker/login-action@v1
#        with:
#          registry: ghcr.io
#          username: ${{ github.repository_owner }}
#          password: ${{ secrets.CR_PAT }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          # push: ${{ github.event_name != 'pull_request' }}
          push: false
          tags: ${{ steps.info.outputs.tags }}
          build-args: |
            COMMIT_SHA=${{ steps.info.outputs.sha }}
          labels: |
            org.opencontainers.image.title=${{ github.event.repository.name }}
            org.opencontainers.image.description=${{ github.event.repository.description }}
            org.opencontainers.image.url=${{ github.event.repository.html_url }}
            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
            org.opencontainers.image.version=${{ steps.info.outputs.version }}
            org.opencontainers.image.created=${{ steps.info.outputs.created }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}