name: Docker Build and Push

on:
  push:
    branches: [ main ]
    tags:
      - 'v*'
  pull_request:
    branches: [ main ]

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

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

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

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3

    - name: Log in to Docker Hub
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v3
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    - name: Extract metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=sha

    - name: Build and push Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

    - name: Run Trivy vulnerability scanner
      uses: aquasecurity/trivy-action@master
      if: github.event_name != 'pull_request'
      with:
        image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
        format: 'sarif'
        output: 'trivy-results.sarif'

    - name: Upload Trivy results to GitHub Security
      uses: github/codeql-action/upload-sarif@v2
      if: github.event_name != 'pull_request'
      with:
        sarif_file: 'trivy-results.sarif'