name: CI/CD Pipeline - Build, Test, and Deploy

on:
  push:
    branches: [main, master, develop]
  pull_request:
    branches: [main, master]
  workflow_dispatch:

env:
  NODE_VERSION: '18'
  REGISTRY: ${{ secrets.HARBOR_REGISTRY }}
  IMAGE_NAME: infrastructure/monitoring-dashboard

jobs:
  # Job 1: Lint and Test
  test:
    name: 🧪 Test & Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run linting
        run: npm run lint

      - name: Run tests
        run: npm run test:coverage

      - name: Upload test results
        uses: actions/upload-artifact@v3
        if: always()
        with:
          name: test-results
          path: |
            coverage/
            test-results.xml

  # Job 2: Security Scan
  security:
    name: 🔒 Security Scan
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run security audit
        run: npm audit --audit-level=high

      - name: Check for vulnerabilities
        run: |
          if npm audit --audit-level=moderate --json | jq '.vulnerabilities | length' | grep -v '^0$'; then
            echo "Vulnerabilities found!"
            npm audit --audit-level=moderate
            exit 1
          fi

  # Job 3: Build and Push Docker Image
  build:
    name: 🏗️ Build & Push Image
    runs-on: ubuntu-latest
    needs: [test, security]
    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
    outputs:
      image-tag: ${{ steps.meta.outputs.tags }}
      image-digest: ${{ steps.build.outputs.digest }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Login to Harbor Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.HARBOR_USERNAME }}
          password: ${{ secrets.HARBOR_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=sha,prefix={{branch}}-
            type=raw,value=latest,enable={{is_default_branch}}
            type=raw,value={{date 'YYYYMMDD-HHmmss'}}

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max

      - name: Generate SBOM
        run: |
          # Install syft
          curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin
          
          # Generate SBOM using the specific image digest
          syft ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build.outputs.digest }} -o spdx-json > sbom.spdx.json
          
          # Verify SBOM was created
          if [ ! -f sbom.spdx.json ]; then
            echo "Failed to generate SBOM"
            exit 1
          fi
          echo "SBOM generated successfully"

      - name: Attach SBOM to Docker image
        run: |
          # Install ORAS
          curl -LO https://github.com/oras-project/oras/releases/download/v1.1.0/oras_1.1.0_linux_amd64.tar.gz
          tar -xzf oras_1.1.0_linux_amd64.tar.gz
          sudo mv oras /usr/local/bin/
          
          # Get the image digest from the build step
          IMAGE_DIGEST="${{ steps.build.outputs.digest }}"
          
          # Try method 1: Use oras attach with proper media type
          echo "Attempting to attach SBOM with oras attach..."
          oras attach ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${IMAGE_DIGEST} \
            --artifact-type application/vnd.cyclonedx+json \
            --annotation "org.opencontainers.artifact.description=SBOM for ${{ env.IMAGE_NAME }}" \
            sbom.spdx.json:application/spdx+json || echo "oras attach failed, trying alternative method..."
          
          # Alternative method: Push as separate artifact with clear naming
          echo "Uploading SBOM as separate artifact..."
          oras push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sbom-${{ github.sha }} \
            --artifact-type application/spdx+json \
            --annotation "org.opencontainers.artifact.description=SBOM for ${{ env.IMAGE_NAME }}@${IMAGE_DIGEST}" \
            --annotation "org.opencontainers.artifact.source=${IMAGE_DIGEST}" \
            sbom.spdx.json:application/spdx+json
          
          echo "SBOM uploaded successfully"

  # Job 4: Image Security Scan
  scan:
    name: 🛡️ Image Security Scan
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
    steps:
      - name: Login to Harbor Registry
        run: |
          echo "${{ secrets.HARBOR_TOKEN }}" | docker login ${{ env.REGISTRY }} -u '${{ secrets.HARBOR_USERNAME }}' --password-stdin

      - name: Install Trivy
        run: |
          sudo apt-get update
          sudo apt-get install -y wget
          # Get the latest Trivy version dynamically
          TRIVY_VERSION=$(curl -s "https://api.github.com/repos/aquasecurity/trivy/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' | sed 's/v//')
          wget https://github.com/aquasecurity/trivy/releases/latest/download/trivy_${TRIVY_VERSION}_Linux-64bit.deb
          sudo dpkg -i trivy_${TRIVY_VERSION}_Linux-64bit.deb

      - name: Run Trivy scan (SARIF)
        run: |
          trivy image --format sarif --output trivy-results.sarif \
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build.outputs.image-digest }}

      - name: Run Trivy scan (JSON)
        run: |
          trivy image --format json --output trivy-results.json \
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build.outputs.image-digest }}

      - name: Install ORAS
        run: |
          curl -LO https://github.com/oras-project/oras/releases/download/v1.1.0/oras_1.1.0_linux_amd64.tar.gz
          tar -xzf oras_1.1.0_linux_amd64.tar.gz
          sudo mv oras /usr/local/bin/

      - name: Attach scan results to Harbor image
        run: |
          IMAGE_DIGEST="${{ needs.build.outputs.image-digest }}"
          
          # Attach SARIF results
          oras attach ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${IMAGE_DIGEST} \
            --artifact-type application/sarif+json \
            --annotation "org.opencontainers.artifact.description=Trivy SARIF scan results" \
            trivy-results.sarif:application/sarif+json
          
          # Attach JSON results  
          oras attach ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${IMAGE_DIGEST} \
            --artifact-type application/json \
            --annotation "scan.type=vulnerability" \
            --annotation "scan.tool=trivy" \
            --annotation "org.opencontainers.artifact.description=Trivy JSON scan results" \
            trivy-results.json:application/json
          
          echo "Scan results attached successfully"

      - name: Upload scan artifacts (backup)
        uses: actions/upload-artifact@v3
        with:
          name: trivy-scan-results
          path: |
            trivy-results.sarif
            trivy-results.json

      - name: Check for HIGH/CRITICAL vulnerabilities
        run: |
          trivy image \
            --format json \
            --output trivy-critical.json \
            --severity HIGH,CRITICAL \
            --exit-code 1 \
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build.outputs.image-digest }}


  # # Job 5: Deploy to Development
  # deploy-dev:
  #   name: 🚀 Deploy to Development
  #   runs-on: ubuntu-latest
  #   needs: [build, scan]
  #   if: github.ref == 'refs/heads/develop'
  #   environment: development
  #   steps:
  #     - name: Deploy to development environment
  #       run: |
  #         echo "🚀 Deploying to development environment"
  #         echo "Image: ${{ needs.build.outputs.image-tag }}"
  #         echo "Digest: ${{ needs.build.outputs.image-digest }}"
  #         # Add actual deployment commands here
  #         # For example: kubectl, docker-compose, or API calls

  # # Job 6: Deploy to Production
  # deploy-prod:
  #   name: 🏭 Deploy to Production
  #   runs-on: ubuntu-latest
  #   needs: [build, scan]
  #   if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master'
  #   environment: production
  #   steps:
  #     - name: Checkout code
  #       uses: actions/checkout@v4

  #     - name: Deploy to production
  #       run: |
  #         echo "🏭 Deploying to production environment"
  #         echo "Image: ${{ needs.build.outputs.image-tag }}"
  #         echo "Digest: ${{ needs.build.outputs.image-digest }}"
          
  #         # Example deployment script
  #         # In a real scenario, you might:
  #         # 1. SSH to your server
  #         # 2. Pull the new image
  #         # 3. Update docker-compose.yml
  #         # 4. Restart the service
  #         # 5. Run health checks

  #     - name: Health check after deployment
  #       run: |
  #         echo "🔍 Running post-deployment health checks"
  #         # Add health check commands here
  #         # curl -f http://your-app-url/health || exit 1

  #     - name: Notify deployment success
  #       run: |
  #         echo "✅ Deployment completed successfully!"
  #         echo "🌐 Application URL: https://your-domain.com"
  #         echo "📊 Monitoring: https://your-domain.com/health/detailed"

  # Job 7: Cleanup
  cleanup:
    name: 🧹 Cleanup
    runs-on: ubuntu-latest
    needs: [deploy-dev, deploy-prod]
    if: always()
    steps:
      - name: Clean up old images
        run: |
          echo "🧹 Cleaning up old container images"
          # Add cleanup logic here
          # For example, remove images older than 30 days