name: Puter.js API Tests

# Runs on puter.js SDK changes — the suites live in src/puter-js/tests,
# so test changes are covered by the same glob — plus the pieces the
# runners depend on: the worker preamble, the in-memory test env in
# testUtil, and the backend vitest config the API-tests config extends.
# Backend and extension changes run backend-tests.yaml instead.
on:
  pull_request:
    types: [opened, synchronize, reopened]
    paths:
      - 'src/puter-js/**'
      - 'src/worker/**'
      - 'src/backend/testUtil.ts'
      - 'src/backend/vitest.config.ts'
      - 'tools/**'
      - 'package.json'
      - 'package-lock.json'
      - '.github/workflows/puterjs-tests.yaml'

permissions:
  contents: read
  pull-requests: write

jobs:
  test:
    runs-on: ubuntu-latest

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

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '24'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      # The runners exercise the built artifacts: the SDK bundle
      # (src/puter-js/dist) for node + browser, and the worker preamble
      # (src/worker/dist) for workerd.
      - name: Build puter.js SDK and worker preamble
        run: npm run build:workerLib

      - name: Install Playwright chromium
        run: npx playwright install --with-deps chromium

      - name: Run puter.js API tests (node, browser, workerd)
        run: npm run test:puterjs
        env:
          CI: 'true'

  # SDK coverage on both refs, reported as a PR comment — same shape as
  # backend-tests.yaml. This run uses the istanbul-instrumented bundle
  # (the `test` job above keeps exercising the production build).
  coverage:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - ref: ${{ github.base_ref }}
            artifact: base
          - ref: ${{ github.head_ref }}
            artifact: pr

    steps:
      - name: Checkout ${{ matrix.ref }}
        uses: actions/checkout@v4
        with:
          ref: ${{ matrix.ref }}
          repository: ${{ github.event.pull_request.head.repo.full_name }}

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '24'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Install Playwright chromium
        run: npx playwright install --with-deps chromium

      # The base leg is best-effort — it only enriches the PR comment with
      # a comparison, and the base ref may predate the coverage script.
      - name: Run puter.js API tests with coverage
        continue-on-error: ${{ matrix.artifact == 'base' }}
        run: npm run test:puterjs:coverage
        env:
          CI: 'true'

      - name: Upload coverage artifact
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: puterjs-coverage-${{ matrix.artifact }}
          path: src/puter-js/coverage/coverage-*.json
          retention-days: 14
          if-no-files-found: ignore

  report-coverage:
    needs: coverage
    if: always()
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Download PR coverage
        uses: actions/download-artifact@v4
        with:
          name: puterjs-coverage-pr
          path: src/puter-js/coverage

      # May not exist (base ref without the coverage script, or a failed
      # base run) — then report without the comparison column.
      - name: Download base coverage
        id: base-coverage
        continue-on-error: true
        uses: actions/download-artifact@v4
        with:
          name: puterjs-coverage-base
          path: coverage-base

      - name: Report coverage on PR
        if: steps.base-coverage.outcome == 'success'
        uses: davelosert/vitest-coverage-report-action@v2
        with:
          name: puter.js SDK
          json-summary-path: src/puter-js/coverage/coverage-summary.json
          json-final-path: src/puter-js/coverage/coverage-final.json
          json-summary-compare-path: coverage-base/coverage-summary.json

      - name: Report coverage on PR (no base comparison)
        if: steps.base-coverage.outcome != 'success'
        uses: davelosert/vitest-coverage-report-action@v2
        with:
          name: puter.js SDK
          json-summary-path: src/puter-js/coverage/coverage-summary.json
          json-final-path: src/puter-js/coverage/coverage-final.json