name: Publish docker image to ghcr (latest)

env:
  IMAGE_NAME: ghcr.io/${{ github.repository_owner }}/plano

on:
  push:
    branches: [main]

jobs:
  build-arm64:
    runs-on: [linux-arm64]
    permissions: { contents: read, packages: write }
    steps:
      - uses: actions/checkout@v4
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest

      - name: Build and Push ARM64 Image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/arm64
          push: true
          # produce ghcr.io/<owner>/plano:latest-arm64
          tags: ${{ steps.meta.outputs.tags }}-arm64

  build-amd64:
    runs-on: ubuntu-latest
    permissions: { contents: read, packages: write }
    steps:
      - uses: actions/checkout@v4
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest

      - name: Build and Push AMD64 Image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ steps.meta.outputs.tags }}-amd64

  create-manifest:
    runs-on: ubuntu-latest
    needs: [build-arm64, build-amd64]
    permissions: { contents: read, packages: write }
    steps:
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest

      - name: Create Multi-Arch Manifest
        run: |
          docker buildx imagetools create -t ${{ steps.meta.outputs.tags }} \
            ${{ env.IMAGE_NAME }}:latest-arm64 \
            ${{ env.IMAGE_NAME }}:latest-amd64