name: Generate SBOM

on:
  push:
    branches: [main, master]
  pull_request:
    branches: [main, master]
  schedule:
    # Generate SBOM weekly
    - cron: "0 3 * * 2"
  workflow_dispatch:

jobs:
  generate-sbom:
    name: Generate Software Bill of Materials
    runs-on: ubuntu-latest
    permissions:
      contents: read
      actions: write

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

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.11"

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "18"

      - name: Install Python dependencies
        run: |
          cd modern/backend
          pip install -r requirements.txt

      - name: Install Node.js dependencies
        run: |
          cd modern/frontend
          npm ci

      - name: Install SBOM generators
        run: |
          # Install SPDX tools
          npm install -g @cyclonedx/cyclonedx-npm
          pip install cyclonedx-bom

          # Install Syft for comprehensive SBOM generation
          curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin

      - name: Generate Python SBOM (CycloneDX)
        run: |
          cd modern/backend
          cyclonedx-py -o liferpg-backend-sbom.json
          cyclonedx-py -o liferpg-backend-sbom.xml --format xml

      - name: Generate Node.js SBOM (CycloneDX)
        run: |
          cd modern/frontend
          cyclonedx-npm --output-file liferpg-frontend-sbom.json
          cyclonedx-npm --output-format xml --output-file liferpg-frontend-sbom.xml

      - name: Generate comprehensive SBOM with Syft
        run: |
          # Generate SBOM for the entire project
          syft . -o spdx-json=liferpg-complete-sbom.spdx.json
          syft . -o cyclonedx-json=liferpg-complete-sbom.cyclonedx.json

          # Generate SBOM for backend
          syft modern/backend -o spdx-json=liferpg-backend-syft.spdx.json

          # Generate SBOM for frontend
          syft modern/frontend -o spdx-json=liferpg-frontend-syft.spdx.json

      - name: Generate dependency tree
        run: |
          echo "# LifeRPG Dependency Analysis" > dependency-analysis.md
          echo "" >> dependency-analysis.md
          echo "Generated on: $(date)" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "## Python Backend Dependencies" >> dependency-analysis.md
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/backend
          pip list --format=freeze >> ../../dependency-analysis.md
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "## Node.js Frontend Dependencies" >> dependency-analysis.md
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/frontend
          npm list --depth=0 >> ../../dependency-analysis.md 2>&1 || true
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md

      - name: Generate security audit
        run: |
          echo "## Security Audit Results" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "### Python Security Audit (pip-audit)" >> dependency-analysis.md
          pip install pip-audit
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/backend
          pip-audit --format=text >> ../../dependency-analysis.md 2>&1 || echo "No vulnerabilities found" >> ../../dependency-analysis.md
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "### Node.js Security Audit" >> dependency-analysis.md
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/frontend
          npm audit --audit-level=high >> ../../dependency-analysis.md 2>&1 || echo "No high/critical vulnerabilities found" >> ../../dependency-analysis.md
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md

      - name: Generate license summary
        run: |
          echo "## License Summary" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "### Python Package Licenses" >> dependency-analysis.md
          pip install pip-licenses
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/backend
          pip-licenses --format=markdown --output-file=../../python-licenses.md
          cat ../../python-licenses.md >> ../../dependency-analysis.md
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md
          echo "" >> dependency-analysis.md

          echo "### Node.js Package Licenses" >> dependency-analysis.md
          echo "\`\`\`" >> dependency-analysis.md
          cd modern/frontend
          npx license-checker --summary >> ../../dependency-analysis.md 2>&1 || echo "License checker not available" >> ../../dependency-analysis.md
          cd ../..
          echo "\`\`\`" >> dependency-analysis.md

      - name: Upload SBOM artifacts
        uses: actions/upload-artifact@v3
        with:
          name: sbom-files
          path: |
            modern/backend/liferpg-backend-sbom.*
            modern/frontend/liferpg-frontend-sbom.*
            liferpg-complete-sbom.*
            liferpg-*-syft.*
            dependency-analysis.md
            python-licenses.md

      - name: Create SBOM release
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Create a release with SBOM files
          gh release create "sbom-$(date +%Y%m%d-%H%M%S)" \
            --title "SBOM $(date +%Y-%m-%d)" \
            --notes "Software Bill of Materials generated automatically" \
            --prerelease \
            modern/backend/liferpg-backend-sbom.json \
            modern/frontend/liferpg-frontend-sbom.json \
            liferpg-complete-sbom.cyclonedx.json \
            liferpg-complete-sbom.spdx.json \
            dependency-analysis.md

      - name: Summary
        run: |
          echo "## SBOM Generation Complete" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "Generated SBOM files:" >> $GITHUB_STEP_SUMMARY
          echo "- Backend SBOM (CycloneDX): liferpg-backend-sbom.json" >> $GITHUB_STEP_SUMMARY
          echo "- Frontend SBOM (CycloneDX): liferpg-frontend-sbom.json" >> $GITHUB_STEP_SUMMARY
          echo "- Complete SBOM (CycloneDX): liferpg-complete-sbom.cyclonedx.json" >> $GITHUB_STEP_SUMMARY
          echo "- Complete SBOM (SPDX): liferpg-complete-sbom.spdx.json" >> $GITHUB_STEP_SUMMARY
          echo "- Dependency Analysis: dependency-analysis.md" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "SBOM files contain comprehensive dependency information for security and compliance purposes." >> $GITHUB_STEP_SUMMARY