name: Publish Docker Image

on:
  push:
    tags:
      - 'v*'

jobs:
  build-and-push:
    name: 🐳 PG ${{ matrix.pg }} (${{ matrix.platform }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        pg: [13, 14, 15, 16, 17, 18]
        platform: [linux/amd64, linux/arm64]

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up QEMU (for cross-platform builds)
        uses: docker/setup-qemu-action@v3

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

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract rdf_fdw version from tag
        id: version
        run: echo "RDF_FDW_VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: ${{ matrix.platform }}
          push: true
          build-args: |
            PG_VERSION=${{ matrix.pg }}
            RDF_FDW_VERSION=${{ steps.version.outputs.RDF_FDW_VERSION }}
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/rdf_fdw:${{ steps.version.outputs.RDF_FDW_VERSION }}-pg${{ matrix.pg }}
            ${{ secrets.DOCKERHUB_USERNAME }}/rdf_fdw:latest-pg${{ matrix.pg }}