name: Build and Push GHCR Images

on:
  push:
    branches:
      - main
      - develop
    tags:
      - 'v*.*.*'
  pull_request:
    branches:
      - main
      - develop
  workflow_dispatch:

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

permissions:
  contents: read
  packages: write
  id-token: write

jobs:
  build-and-push:
    name: Build and Push Docker Images
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - image: nextjs-app
            context: .
            dockerfile: ./frontends/nextjs/Dockerfile
            platforms: linux/amd64,linux/arm64
          - image: dbal-daemon
            context: ./dbal/production
            dockerfile: ./dbal/production/build-config/Dockerfile
            platforms: linux/amd64,linux/arm64
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

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

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/${{ matrix.image }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha,prefix={{branch}}-
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@v6
        with:
          context: ${{ matrix.context }}
          file: ${{ matrix.dockerfile }}
          platforms: ${{ matrix.platforms }}
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILD_DATE=${{ github.event.head_commit.timestamp }}
            VCS_REF=${{ github.sha }}
            VERSION=${{ steps.meta.outputs.version }}

      - name: Generate artifact attestation
        if: github.event_name != 'pull_request'
        uses: actions/attest-build-provenance@v2
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/${{ matrix.image }}
          subject-digest: ${{ steps.build.outputs.digest }}
          push-to-registry: true

  security-scan:
    name: Security Scan Images
    runs-on: ubuntu-latest
    needs: build-and-push
    if: github.event_name != 'pull_request'
    strategy:
      matrix:
        image: [nextjs-app, dbal-daemon]
    steps:
      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/${{ matrix.image }}:${{ github.ref_name }}
          format: 'sarif'
          output: 'trivy-results-${{ matrix.image }}.sarif'

      - name: Upload Trivy results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: 'trivy-results-${{ matrix.image }}.sarif'
          category: container-${{ matrix.image }}

  publish-manifest:
    name: Create Multi-Arch Manifest
    runs-on: ubuntu-latest
    needs: build-and-push
    if: github.event_name != 'pull_request'
    steps:
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifest for all images
        run: |
          for image in nextjs-app dbal-daemon; do
            docker manifest create \
              ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/$image:${{ github.ref_name }} \
              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/$image:${{ github.ref_name }}-amd64 \
              --amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/$image:${{ github.ref_name }}-arm64
            docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/$image:${{ github.ref_name }}
          done