name: Build and Push Docker Images

on:
  workflow_dispatch:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  release:
    types: [released]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions:
  packages: write

jobs:
  build_and_push:
    runs-on: ubuntu-latest
    strategy:
      # Prevent a failure in one image from stopping the other builds
      fail-fast: false
      matrix:
        # TODO: Get Renovate to update these
        cnpgTag:
          - "14.10"
          - "15.5"
          - "16.1"
        pgvectorsVersion:
          - "v0.1.10"

    steps:
      # Setup

      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3.0.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.0.0

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3.0.0
        if: ${{ !github.event.pull_request.head.repo.fork }}
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set major postgres version
        id: version
        run: |
          pg_major=$(echo ${{ matrix.cnpgTag }} | cut -d'.' -f1)
          echo "pg_major=$pg_major" >> "$GITHUB_OUTPUT"

      - name: Generate docker image tags
        id: metadata
        uses: docker/metadata-action@v5
        with:
          flavor: |
            # Disable latest tag
            latest=false
          images: |
            name=ghcr.io/${{ github.repository_owner }}/cnpgvecto.rs
          tags: |
            type=ref,event=pr
            # TODO: When exactly to push these tags?
            type=raw,value=${{ matrix.cnpgTag }}-${{ matrix.pgvectorsVersion }}
            type=raw,value=${{ steps.version.outputs.pg_major }}-${{ matrix.pgvectorsVersion }}
            type=raw,value=${{ matrix.cnpgTag }}
            type=raw,value=${{ steps.version.outputs.pg_major }}

      - name: Build and push image
        uses: docker/build-push-action@v4.1.1
        with:
          context: .
          # TODO: Enable multiarch build
          platforms: linux/amd64
          push: ${{ !github.event.pull_request }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ steps.metadata.outputs.tags }}
          labels: ${{ steps.metadata.outputs.labels }}
          build-args: |
            CNPG_TAG=${{ matrix.cnpgTag }}
            PG_MAJOR=${{ steps.version.outputs.pg_major }}
            PGVECTORS_TAG=${{ matrix.pgvectorsVersion }}