name: UI Tests

on:
  push:
    branches: ['main']
  pull_request:

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest

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

      - name: Build
        uses: ./.github/actions/build-dist

  ui-tests:
    needs: [build]
    runs-on: ubuntu-latest
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        browser: [firefox, chromium]
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Base Setup
        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1

      - uses: actions/download-artifact@v4
        with:
          name: notebook-dist-${{ github.run_number }}
          path: ./dist

      - name: Install the package
        run: |
          cd dist
          python -m pip install -vv notebook*.whl

      - name: Install the test dependencies
        run: |
          cd ui-tests
          jlpm
          jlpm playwright install

      - name: Test
        run: |
          cd ui-tests
          jlpm test --browser ${{ matrix.browser }}

      - name: Upload Playwright Test assets
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: notebook-${{ matrix.browser }}-test-assets
          path: |
            ui-tests/test-results

      - name: Upload Playwright Test report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: notebook-${{ matrix.browser }}-test-report
          path: |
            ui-tests/playwright-report

      - name: Update snapshots
        if: failure()
        run: |
          cd ui-tests
          # remove previous snapshots from other browser
          jlpm rimraf "test/**/*-snapshots/*.png"
          # generate new snapshots
          jlpm run test:update --browser ${{ matrix.browser }}

      - name: Upload updated snapshots
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: notebook-${{ matrix.browser }}-updated-snapshots
          path: ui-tests/test
