# GitHub Actions Workflow for Spectral API Security Linting
# This workflow validates OpenAPI/AsyncAPI specifications against security best practices

name: API Security Linting with Spectral

on:
  push:
    branches: [main, develop]
    paths:
      - 'api-specs/**/*.yaml'
      - 'api-specs/**/*.yml'
      - 'api-specs/**/*.json'
      - '.spectral.yaml'
  pull_request:
    branches: [main, develop]
    paths:
      - 'api-specs/**/*.yaml'
      - 'api-specs/**/*.yml'
      - 'api-specs/**/*.json'
      - '.spectral.yaml'

jobs:
  spectral-lint:
    name: Lint API Specifications
    runs-on: ubuntu-latest

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install Spectral CLI
        run: npm install -g @stoplight/spectral-cli

      - name: Verify Spectral Installation
        run: spectral --version

      - name: Lint API Specifications (GitHub Actions Format)
        run: |
          spectral lint api-specs/**/*.{yaml,yml,json} \
            --ruleset .spectral.yaml \
            --format github-actions \
            --fail-severity error
        continue-on-error: true

      - name: Generate JSON Report
        if: always()
        run: |
          mkdir -p reports
          spectral lint api-specs/**/*.{yaml,yml,json} \
            --ruleset .spectral.yaml \
            --format json \
            --output reports/spectral-results.json || true

      - name: Generate HTML Report
        if: always()
        run: |
          # Download parse script if not in repository
          if [ ! -f "scripts/parse_spectral_results.py" ]; then
            curl -o scripts/parse_spectral_results.py \
              https://raw.githubusercontent.com/SecOpsAgentKit/skills/main/appsec/api-spectral/scripts/parse_spectral_results.py
            chmod +x scripts/parse_spectral_results.py
          fi

          python3 scripts/parse_spectral_results.py \
            --input reports/spectral-results.json \
            --output reports/spectral-report.html \
            --format html \
            --map-owasp

      - name: Upload Spectral Reports
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: spectral-security-reports
          path: reports/
          retention-days: 30

      - name: Check for Critical Issues
        run: |
          if [ -f "reports/spectral-results.json" ]; then
            CRITICAL_COUNT=$(jq '[.[] | select(.severity == 0)] | length' reports/spectral-results.json)
            echo "Critical security issues found: $CRITICAL_COUNT"

            if [ "$CRITICAL_COUNT" -gt 0 ]; then
              echo "::error::Found $CRITICAL_COUNT critical security issues in API specifications"
              exit 1
            fi
          fi

      - name: Comment PR with Results
        if: github.event_name == 'pull_request' && always()
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');

            if (fs.existsSync('reports/spectral-results.json')) {
              const results = JSON.parse(fs.readFileSync('reports/spectral-results.json', 'utf8'));

              const severityCounts = results.reduce((acc, finding) => {
                const severity = ['error', 'warn', 'info', 'hint'][finding.severity] || 'unknown';
                acc[severity] = (acc[severity] || 0) + 1;
                return acc;
              }, {});

              const errorCount = severityCounts.error || 0;
              const warnCount = severityCounts.warn || 0;
              const infoCount = severityCounts.info || 0;

              const summary = `## 🔒 API Security Lint Results

              **Total Findings:** ${results.length}

              | Severity | Count |
              |----------|-------|
              | 🔴 Error | ${errorCount} |
              | 🟡 Warning | ${warnCount} |
              | 🔵 Info | ${infoCount} |

              ${errorCount > 0 ? '⚠️ **Action Required:** Fix error-level security issues before merging.' : '✅ No critical security issues found.'}

              📄 [View Detailed Report](../actions/runs/${context.runId})
              `;

              github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: summary
              });
            }

  # Optional: Separate job for OWASP-specific validation
  owasp-validation:
    name: OWASP API Security Validation
    runs-on: ubuntu-latest
    needs: spectral-lint

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install Spectral CLI
        run: npm install -g @stoplight/spectral-cli

      - name: Validate Against OWASP Ruleset
        run: |
          # Use OWASP-specific ruleset if available
          if [ -f ".spectral-owasp.yaml" ]; then
            RULESET=".spectral-owasp.yaml"
          else
            # Download OWASP ruleset template
            curl -o .spectral-owasp.yaml \
              https://raw.githubusercontent.com/SecOpsAgentKit/skills/main/appsec/api-spectral/assets/spectral-owasp.yaml
            RULESET=".spectral-owasp.yaml"
          fi

          spectral lint api-specs/**/*.{yaml,yml,json} \
            --ruleset "$RULESET" \
            --format stylish \
            --fail-severity warn

      - name: Generate OWASP Compliance Report
        if: always()
        run: |
          mkdir -p reports
          spectral lint api-specs/**/*.{yaml,yml,json} \
            --ruleset .spectral-owasp.yaml \
            --format json \
            --output reports/owasp-validation.json || true

      - name: Upload OWASP Report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: owasp-compliance-report
          path: reports/owasp-validation.json
          retention-days: 30