name: "functional"

on:
  pull_request:
  push:
    branches:
      - main
      - 5.0-dev

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

permissions: {}

env:
  CI: true
  UV_EXCLUDE_NEWER: 7 days

jobs:
  changes:
    permissions:
      contents: read
      pull-requests: read
    name: "changes"
    runs-on: ubuntu-latest
    outputs:
      should_run: ${{ steps.changes.outputs.should_run }}
      sha: ${{ steps.changes.outputs.sha }}
      pr_number: ${{ steps.changes.outputs.pr_number }}
      source_branch: ${{ steps.changes.outputs.source_branch }}
      source_repo: ${{ steps.changes.outputs.source_repo }}
    steps:
      - uses: actions/checkout@v4
      - uses: "gradio-app/gradio/.github/actions/changes@main"
        id: changes
        with:
          filter: "functional"
          token: ${{ secrets.GITHUB_TOKEN }}
  build:
    name: "build-frontend"
    permissions:
      contents: read
    runs-on: ubuntu-20.04-16core
    needs: changes
    if: needs.changes.outputs.should_run == 'true'
    steps:
      - uses: actions/checkout@v4
      # Build the frontend exactly once and share it with both SSR test legs
      # (below) via an artifact. Previously each leg rebuilt it independently,
      # paying the ~3min `pnpm build` twice. This action sets up node/pnpm,
      # installs deps and builds into `gradio/templates/**` (the SPA + the SSR
      # server bundle) — no Python/venv needed (the build only reads the
      # checked-in `gradio/package.json` for the version string).
      - name: build frontend
        uses: "gradio-app/gradio/.github/actions/install-frontend-deps@main"
      - name: upload built frontend templates
        uses: actions/upload-artifact@v4
        with:
          name: gradio-templates
          path: gradio/templates
          retention-days: 1
          include-hidden-files: true
  test:
    # Browser legs keep their original check names (functional-test-SSR=true/
    # false); reload runs as its own leg named functional-reload.
    name: "${{ matrix.suite == 'reload' && 'functional-reload' || format('functional-test-SSR={0}', matrix.ssr) }}"
    permissions:
      contents: read
    runs-on: ubuntu-20.04-16core
    needs: [changes, build]
    strategy:
      fail-fast: false
      matrix:
        # Reload tests get their own leg instead of running after the browser
        # suite inside each SSR leg: the ~99s serial reload run is taken off the
        # browser legs' critical path. Reload doesn't depend on SSR mode (the
        # reload step never set GRADIO_SSR_MODE), so it runs once here rather
        # than redundantly in both legs.
        include:
          - { suite: browser, ssr: true }
          - { suite: browser, ssr: false }
          - { suite: reload }
    if: needs.changes.outputs.should_run == 'true'
    steps:
      - uses: actions/checkout@v4
      # `skip_build: true` skips the frontend build (we download it from the
      # `build` job instead). `skip_docs_gen: true` skips website JSON/CSS-var
      # doc generation (~80s, irrelevant to browser tests); it's a new input on
      # install-all-deps, so it only takes effect once this PR is merged and the
      # @main action carries it (the current @main ignores the unknown input).
      - name: install dependencies
        id: install_deps
        uses: "gradio-app/gradio/.github/actions/install-all-deps@main"
        with:
          python_version: "3.10"
          test: true
          skip_build: true
          skip_docs_gen: true
      - name: download built frontend templates
        uses: actions/download-artifact@v4
        with:
          name: gradio-templates
          path: gradio/templates
      - name: verify frontend templates present
        run: |
          test -f gradio/templates/frontend/index.html \
            || { echo "::error::frontend templates missing after artifact download"; ls -laR gradio/templates | head -50; exit 1; }
          test -d gradio/templates/node/build \
            || { echo "::error::SSR node build missing after artifact download"; ls -laR gradio/templates | head -50; exit 1; }
      - name: cache playwright browsers
        uses: actions/cache@v4
        with:
          path: ~/.cache/ms-playwright
          key: playwright-${{ runner.os }}-${{ hashFiles('pnpm-lock.yaml') }}
          restore-keys: |
            playwright-${{ runner.os }}-
      - name: install playwright
        timeout-minutes: 3
        run: pnpm exec playwright install chromium --only-shell
      - name: build essential packages
        run: pnpm --filter @gradio/utils --filter @gradio/theme package
      - name: run browser tests
        if: matrix.suite == 'browser'
        env:
          GRADIO_SSR_MODE: ${{ matrix.ssr }}
          # 16-core runner + largely wait-bound tests → parallelize beyond the
          # historical default of 4 workers (see .config/playwright.config.js).
          PW_BROWSER_WORKERS: 8
        run: |
          . venv/bin/activate
          pnpm test:browser
      - name: upload screenshots
        uses: actions/upload-artifact@v4
        if: always() && matrix.suite == 'browser'
        with:
          name: playwright-screenshots-SSR-${{ matrix.ssr }}
          path: |
            ./test-results
      - name: run reload mode test
        if: matrix.suite == 'reload'
        run: |
          . venv/bin/activate
          pnpm test:browser:reload
      - name: upload reload mode screenshots
        uses: actions/upload-artifact@v4
        if: always() && matrix.suite == 'reload'
        with:
          name: reload-mode-playwright-screenshots
          path: |
            ./test-results