# .gitea/workflows/lighthouse-ci.yml
# Lighthouse CI for performance and accessibility testing of the StellaOps Web UI

name: Lighthouse CI

on:
  push:
    branches: [main]
    paths:
      - 'src/Web/StellaOps.Web/**'
      - '.gitea/workflows/lighthouse-ci.yml'
  pull_request:
    branches: [main, develop]
    paths:
      - 'src/Web/StellaOps.Web/**'
  schedule:
    # Run weekly on Sunday at 2 AM UTC
    - cron: '0 2 * * 0'
  workflow_dispatch:

env:
  NODE_VERSION: '20'
  LHCI_BUILD_CONTEXT__CURRENT_BRANCH: ${{ github.head_ref || github.ref_name }}
  LHCI_BUILD_CONTEXT__COMMIT_SHA: ${{ github.sha }}

jobs:
  lighthouse:
    name: Lighthouse Audit
    runs-on: ubuntu-22.04
    defaults:
      run:
        working-directory: src/Web/StellaOps.Web

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: src/Web/StellaOps.Web/package-lock.json

      - name: Install dependencies
        run: npm ci

      - name: Build production bundle
        run: npm run build -- --configuration production

      - name: Install Lighthouse CI
        run: npm install -g @lhci/cli@0.13.x

      - name: Run Lighthouse CI
        run: |
          lhci autorun \
            --collect.staticDistDir=./dist/stella-ops-web/browser \
            --collect.numberOfRuns=3 \
            --assert.preset=lighthouse:recommended \
            --assert.assertions.categories:performance=off \
            --assert.assertions.categories:accessibility=off \
            --upload.target=filesystem \
            --upload.outputDir=./lighthouse-results

      - name: Evaluate Lighthouse Results
        id: lhci-results
        run: |
          # Parse the latest Lighthouse report
          REPORT=$(ls -t lighthouse-results/*.json | head -1)

          if [ -f "$REPORT" ]; then
            PERF=$(jq '.categories.performance.score * 100' "$REPORT" | cut -d. -f1)
            A11Y=$(jq '.categories.accessibility.score * 100' "$REPORT" | cut -d. -f1)
            BP=$(jq '.categories["best-practices"].score * 100' "$REPORT" | cut -d. -f1)
            SEO=$(jq '.categories.seo.score * 100' "$REPORT" | cut -d. -f1)

            echo "performance=$PERF" >> $GITHUB_OUTPUT
            echo "accessibility=$A11Y" >> $GITHUB_OUTPUT
            echo "best-practices=$BP" >> $GITHUB_OUTPUT
            echo "seo=$SEO" >> $GITHUB_OUTPUT

            echo "## Lighthouse Results" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "| Category | Score | Threshold | Status |" >> $GITHUB_STEP_SUMMARY
            echo "|----------|-------|-----------|--------|" >> $GITHUB_STEP_SUMMARY

            # Performance: target >= 90
            if [ "$PERF" -ge 90 ]; then
              echo "| Performance | $PERF | >= 90 | :white_check_mark: |" >> $GITHUB_STEP_SUMMARY
            else
              echo "| Performance | $PERF | >= 90 | :warning: |" >> $GITHUB_STEP_SUMMARY
            fi

            # Accessibility: target >= 95
            if [ "$A11Y" -ge 95 ]; then
              echo "| Accessibility | $A11Y | >= 95 | :white_check_mark: |" >> $GITHUB_STEP_SUMMARY
            else
              echo "| Accessibility | $A11Y | >= 95 | :x: |" >> $GITHUB_STEP_SUMMARY
            fi

            # Best Practices: target >= 90
            if [ "$BP" -ge 90 ]; then
              echo "| Best Practices | $BP | >= 90 | :white_check_mark: |" >> $GITHUB_STEP_SUMMARY
            else
              echo "| Best Practices | $BP | >= 90 | :warning: |" >> $GITHUB_STEP_SUMMARY
            fi

            # SEO: target >= 90
            if [ "$SEO" -ge 90 ]; then
              echo "| SEO | $SEO | >= 90 | :white_check_mark: |" >> $GITHUB_STEP_SUMMARY
            else
              echo "| SEO | $SEO | >= 90 | :warning: |" >> $GITHUB_STEP_SUMMARY
            fi
          fi

      - name: Check Quality Gates
        run: |
          PERF=${{ steps.lhci-results.outputs.performance }}
          A11Y=${{ steps.lhci-results.outputs.accessibility }}

          FAILED=0

          # Performance gate (warning only, not blocking)
          if [ "$PERF" -lt 90 ]; then
            echo "::warning::Performance score ($PERF) is below target (90)"
          fi

          # Accessibility gate (blocking)
          if [ "$A11Y" -lt 95 ]; then
            echo "::error::Accessibility score ($A11Y) is below required threshold (95)"
            FAILED=1
          fi

          if [ "$FAILED" -eq 1 ]; then
            exit 1
          fi

      - name: Upload Lighthouse Reports
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: lighthouse-reports
          path: src/Web/StellaOps.Web/lighthouse-results/
          retention-days: 30

  axe-accessibility:
    name: Axe Accessibility Audit
    runs-on: ubuntu-22.04
    defaults:
      run:
        working-directory: src/Web/StellaOps.Web

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: src/Web/StellaOps.Web/package-lock.json

      - name: Install dependencies
        run: npm ci

      - name: Install Playwright browsers
        run: npx playwright install --with-deps chromium

      - name: Build production bundle
        run: npm run build -- --configuration production

      - name: Start preview server
        run: |
          npx serve -s dist/stella-ops-web/browser -l 4200 &
          sleep 5

      - name: Run Axe accessibility tests
        run: |
          npm run test:a11y || true

      - name: Upload Axe results
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: axe-accessibility-results
          path: src/Web/StellaOps.Web/test-results/
          retention-days: 30