name: Docker Build (multi-arch AMD64 + ARM64)

on:
  workflow_dispatch:
  
env:
  REGISTRY: gitea.cuihang1201.synology.me
  IMAGE_NAME: hangpersonal/sad-workspace
  TAG_NAME: latest
  PLATFORMS: linux/amd64,linux/arm64

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up QEMU (for cross-compiling)
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        run: |
          if docker buildx inspect multi >/dev/null 2>&1; then
            echo "Builder multi already exists"
          else
            echo "Creating builder 'multi'"
            docker buildx create --name multi --use
            docker buildx inspect --bootstrap
          fi

      # Login to your Gitea registry
      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - name: Build Docker image
        run: |
          docker buildx build \
           --platform ${{ env.PLATFORMS }} \
           -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.TAG_NAME }} \
           --push --progress=plain .
         
      - name: Inspect pushed manifest
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.TAG_NAME }}
          
      - name: Cleanup Buildx (builder, container, volume, cache)
        if: always()
        run: |
          set -euxo pipefail
          # Remove the builder (stops its BuildKit container)
          if docker buildx version >/dev/null 2>&1; then
            docker buildx rm multi || true
          fi
          # Belt-and-suspenders: kill any lingering buildkit container
          docker rm -f $(docker ps -a --filter name='buildx_buildkit_multi' -q) 2>/dev/null || true
          # Remove the builder's state volume(s)
          docker volume rm $(docker volume ls -q | grep '^buildx_buildkit_multi') 2>/dev/null || true
          # (Optional) prune caches to reclaim disk
          if docker buildx version >/dev/null 2>&1; then
            docker buildx prune --all --force || true
          fi