name: Build Docker image

on:
  push:
    branches: [master]

jobs:
  docker:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Docker
        if: steps.docker-cache.outputs.cache-hit != 'true'
        run: |
          wget -q -O /tmp/docker.tgz https://download.docker.com/linux/static/stable/x86_64/docker-20.10.23.tgz \
          && tar --extract --file /tmp/docker.tgz --directory /usr/bin --strip-components 1 --no-same-owner docker/docker \
          && rm -rf /tmp/* &&
          echo "Done"

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Repo
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.REPO_USERNAME }}
          password: ${{ secrets.REPO_TOKEN }}

      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=fascinated/unifi-cam-proxy
          VERSION=dev
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/v}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          if [ "${{ github.event_name }}" = "push" ]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
          fi
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi

          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "tags=${TAGS}" >> $GITHUB_OUTPUT
          echo "created=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT

      - name: Build and Push (Latest)
        uses: docker/build-push-action@v5
        with:
          push: true
          context: .
          tags: ${{ steps.prep.outputs.tags }}
          labels: |
            org.opencontainers.image.source=${{ github.event.repository.html_url }}
            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
            org.opencontainers.image.revision=${{ github.sha }}