name: Build and Push Docker Image

on:
  push:
    branches: [ main ]
  pull_request:
    types: [ closed ]
    branches: [ main ]

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    # Only run on merged PRs or direct pushes to main
    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      
      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      
      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ secrets.DOCKERHUB_USERNAME }}/duckai
          tags: |
            type=sha,format=short
            type=ref,event=branch
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
      
      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/duckai:buildcache
          cache-to: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/duckai:buildcache,mode=max