name: Docker Build and Push

on:
  push:
    branches: [ main, develop ]
    tags: [ 'v*' ]
  pull_request:
    branches: [ main, develop ]
  release:
    types: [ published ]

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

jobs:
  build-and-push:
    name: Build and Push Docker Image
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write
      security-events: write

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

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

    - name: Log in to Container Registry
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v3
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - 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=semver,pattern={{major}}
          type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/') }}
        labels: |
          org.opencontainers.image.title=MeshCore MQTT Bridge
          org.opencontainers.image.description=A robust bridge service that connects MeshCore devices to MQTT brokers
          org.opencontainers.image.vendor=MeshCore MQTT Bridge Team
          org.opencontainers.image.licenses=GPL-3.0

    - name: Build and push Docker image
      id: build
      uses: docker/build-push-action@v6
      with:
        context: .
        platforms: linux/amd64,linux/arm64
        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
        provenance: true
        sbom: true

    - name: Generate artifact attestation
      if: github.event_name != 'pull_request'
      uses: actions/attest-build-provenance@v1
      with:
        subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
        subject-digest: ${{ steps.build.outputs.digest }}
        push-to-registry: true

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

    - name: Upload Trivy scan results to GitHub Security tab
      if: github.event_name != 'pull_request'
      uses: github/codeql-action/upload-sarif@v3
      with:
        sarif_file: 'trivy-results.sarif'