name: Build and Publish Images

on:
  push:
    branches: [ main ]
    paths:
      - 'docker/**'
      - '.github/workflows/build-images.yml'
      - 'services/**'
      - 'requirements.txt'
  pull_request:
    branches: [ main ]
  workflow_dispatch:

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    strategy:
      matrix:
        image:
          - name: dto-health-monitor
            context: docker/health-monitor
            dockerfile: docker/health-monitor/Dockerfile
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Log in to Docker Hub
        if: secrets.DOCKERHUB_USERNAME && secrets.DOCKERHUB_TOKEN
        uses: docker/login-action@v3
        with:
          registry: docker.io
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ghcr.io/${{ github.repository_owner }}/${{ matrix.image.name }}
            docker.io/${{ secrets.DOCKERHUB_ORG || secrets.DOCKERHUB_USERNAME }}/${{ matrix.image.name }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            type=sha,format=short
            type=ref,event=tag

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: ${{ matrix.image.context }}
          file: ${{ matrix.image.dockerfile }}
          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: Trivy scan
        uses: aquasecurity/trivy-action@0.28.0
        with:
          image-ref: ${{ fromJSON(steps.meta.outputs.json).tags[0] }}
          format: 'sarif'
          output: 'trivy-${{ matrix.image.name }}.sarif'
          exit-code: '1'
          ignore-unfixed: true
          vuln-type: 'os,library'
        continue-on-error: true

      - name: Upload scan results
        uses: actions/upload-artifact@v4
        with:
          name: trivy-${{ matrix.image.name }}-sarif
          path: trivy-${{ matrix.image.name }}.sarif