name: CSS quality

on:
  pull_request:
  push:
    branches: [main]

jobs:
  css-quality:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-node@v4
        with:
          node-version: 24
          cache: npm
      - run: npm ci
      - name: Resolve the complete change range
        env:
          EVENT_NAME: ${{ github.event_name }}
          PR_BASE: ${{ github.event.pull_request.base.sha }}
          PUSH_BEFORE: ${{ github.event.before }}
        run: |
          if [ "$EVENT_NAME" = pull_request ]; then
            base=$(git merge-base "$PR_BASE" HEAD)
          elif [ "$PUSH_BEFORE" = 0000000000000000000000000000000000000000 ]; then
            base=$(git hash-object -t tree /dev/null)
          else
            git cat-file -e "$PUSH_BEFORE^{commit}"
            base=$PUSH_BEFORE
          fi
          echo "QUALITY_BASE_REF=$base" >> "$GITHUB_ENV"
      - name: Verify changed formatting and CSS ownership
        run: npm run format:check && npm run style:check && npm run css:verify