name: Docker PR Preview
on:
  workflow_run:
    workflows: ["Build"]
    types:
      - completed
    branches-ignore:
      - "main"
      - "livekit"

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  deploy:
    if: ${{ github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request' && github.event.label.name == 'docker build' }}
    runs-on: ubuntu-latest
    permissions:
      deployments: write
    environment: Netlify
    steps:
      - name: 📥 Download artifact
        uses: actions/download-artifact@v4
        with:
          github-token: ${{ secrets.ELEMENT_BOT_TOKEN }}
          run_id: ${{ github.event.workflow_run.id }}
          name: build
          path: dist
      
      - name: Get current time
        id: current-time
        run: echo "unix_time=$(date +'%s')" >> $GITHUB_OUTPUT

      - name: Log in to container registry
        uses: docker/login-action@5f4866a30a54f16a52d2ecb4a3898e9e424939cf
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@c314eea2b27e3cb3c7d7be0618510234d8f6178e
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha,format=short,event=branch
            type=raw,value=lpr_${{ github.event.pull_request.number }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb

      - name: Build and push Docker image
        uses: docker/build-push-action@f8bc7f46003ef0cf98b715743d86c2f1ccd01436
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}