name: Build Docker Image

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Semantic version to label the Docker image under (no "v" prefix, e.g. "1.2.3")'
        required: true
        type: string
      tag_latest:
        description: 'Also tag this image as :latest? (Keep false for RC and beta releases)'
        required: false
        type: boolean
        default: false

jobs:
  check_authorization:
    name: Check authorization to publish new Docker image
    runs-on: ubuntu-latest
    outputs:
      isAuthorized: ${{ steps.check-auth.outputs.is_authorized }}
    steps:
      - name: check-auth
        id: check-auth
        run: echo "is_authorized=${{ contains(secrets.DEPLOYMENT_AUTHORIZED_USERS, github.triggering_actor) }}" >> $GITHUB_OUTPUT      
  build:
    name: Build Docker image
    needs: check_authorization
    if: needs.check_authorization.outputs.isAuthorized == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          push: true
          tags: |
            ghcr.io/crosstalk-solutions/project-nomad:${{ inputs.version }}
            ghcr.io/crosstalk-solutions/project-nomad:v${{ inputs.version }}
            ${{ inputs.tag_latest && 'ghcr.io/crosstalk-solutions/project-nomad:latest' || '' }}
          build-args: |
            VERSION=${{ inputs.version }}
            BUILD_DATE=${{ github.event.workflow_run.created_at }}
            VCS_REF=${{ github.sha }}