name: Build docker images

env:
  DOCKER_BASE_NAME: 'ghcr.io/${{ github.repository_owner }}/cert-manager-webhook-dnsimple'

on:
  workflow_call:
    inputs:
      tags:
        description: 'Tags to build the image for (separated by a whitespace)'
        required: true
        type: string


jobs:
  build:
    runs-on: ubuntu-latest

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

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

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

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          password: ${{ secrets.GITHUB_TOKEN }}
          username: ${{ github.repository_owner }}
      
      - name: Format tags
        id: format-tags
        # prepends DOCKER_BASE_NAME to every entry in the string ${{ inputs.tags }}
        run: |
          echo "TAGS=$(printf '${{ env.DOCKER_BASE_NAME }}:%s,' ${{ inputs.tags }})" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.format-tags.outputs.TAGS }}