lighthouse-ci.yml

name: Lighthouse CI

on:
  pull_request:
    branches: [main]
    paths:
      - 'frontend/**'

jobs:
  lighthouse:
    name: Lighthouse Performance Budget
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: frontend

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

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '18'
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

      - name: Install dependencies
        run: npm ci

      - name: Build frontend
        run: npm run build

      - name: Install serve and Lighthouse CI
        run: npm install --no-save serve @lhci/cli@0.14.x

      - name: Run Lighthouse CI
        run: |
          npx serve -s dist -p 4173 &
          sleep 3
          npx lhci autorun
        env:
          LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}

      - name: Upload Lighthouse report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: lighthouse-report
          path: frontend/.lighthouseci/