name: CI

on:
  push:
    branches: [main]

  pull_request: # run on all PRs

jobs:
  lint:
    name: Lint JavaScript

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
          node-version: '14'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci --omit=dev --ignore-scripts

      - name: Run ESLint
        run: npx eslint . --ext .js,.jsx,.ts,.tsx --max-warnings 0

  typecheck:
    name: Typecheck

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
          node-version: '14'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci --omit=dev --ignore-scripts

      - name: Run TypeScript
        run: npx tsc

  lighthouse:
    name: Run Lighthouse audit

    runs-on: ubuntu-latest

    needs: [lint, typecheck]

    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
          node-version: '14'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci --omit=dev --ignore-scripts

      - name: Get Next.js build cache
        uses: actions/cache@v2
        with:
          path: ${{ github.workspace }}/.next/cache
          key: ${{ runner.os }}-next-${{ hashFiles('**/package-lock.json') }}

      - name: Install Lighthouse CLI
        run: npm install -g @lhci/cli@0.4.x

      - name: Build site
        run: SANITY_PROJECT_ID=${{ secrets.SANITY_PROJECT_ID }} npm run build

      - name: Run Lighthouse CI
        run: lhci autorun
        env:
          LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}