name: Publish web image

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      tag:
        description: Existing tag to (re)build and publish, e.g. v0.13.0. Defaults to the triggering ref.
        required: false
        type: string

permissions:
  contents: read
  packages: write

jobs:
  publish:
    name: Build & push web image to GHCR
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event.inputs.tag || github.ref }}

      # Derive the image version from the tag (release ref or dispatch input) so
      # raw tags work for both triggers — semver-from-ref doesn't fire on dispatch.
      - id: ver
        shell: bash
        run: |
          REF="${{ github.event.inputs.tag || github.ref_name }}"
          V="${REF#v}"
          echo "version=$V" >> "$GITHUB_OUTPUT"
          echo "minor=${V%.*}" >> "$GITHUB_OUTPUT"

      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5
        # Annotate the INDEX (not just per-platform configs) so GHCR can read
        # org.opencontainers.image.source and auto-link the package to the repo.
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: index
        with:
          images: ghcr.io/${{ github.repository_owner }}/openconcho-web
          tags: |
            type=raw,value=${{ steps.ver.outputs.version }}
            type=raw,value=${{ steps.ver.outputs.minor }}
            type=raw,value=latest
            type=sha,format=short

      - uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          # provenance off keeps the pushed artifact a plain multi-arch index,
          # so the index annotation below is what GHCR sees for repo linking.
          provenance: false
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          cache-from: type=gha
          cache-to: type=gha,mode=max