name: publish-branch-image

on:
  workflow_dispatch:
    inputs:
      image_tag:
        description: "Container tag to publish"
        required: true
        default: "hash-mt-integration"

permissions:
  contents: read
  packages: write

jobs:
  publish-ghcr-branch:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Prepare image name
        id: image
        run: echo "name=$(echo "ghcr.io/${GITHUB_REPOSITORY}" | tr '[:upper:]' '[:lower:]')" >> "$GITHUB_OUTPUT"

      - name: Compute publish tag
        id: tag
        run: |
          TAG="${{ github.event.inputs.image_tag }}"
          TAG="$(echo "$TAG" | tr '[:upper:]' '[:lower:]')"
          echo "value=$TAG" >> "$GITHUB_OUTPUT"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Login to GHCR
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Publish image
        uses: docker/build-push-action@v7
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            VERSION=${{ github.run_number }}
          tags: |
            ${{ steps.image.outputs.name }}:${{ steps.tag.outputs.value }}
            ${{ steps.image.outputs.name }}:${{ github.sha }}