name: Tests

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

env:
  # Bucket count for the Flutter suite; the matrix below lists 0..N-1.
  # 10, not more: the account runs at most 20 jobs at once, and a push also
  # starts ~10 others (pre-commit, freshness, the rest of this file). At 12
  # three shards queued for up to 34 s and the workflow took 91 s.
  FLUTTER_SHARDS: 10

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.x"

      # uv with a cached wheel store installs requirements.txt in seconds;
      # plain pip took ~26 s of a ~70 s job.
      - uses: astral-sh/setup-uv@v10.2.0
        with:
          enable-cache: true
          cache-dependency-glob: requirements.txt

      - name: Install dependencies
        run: uv pip install --system -r requirements.txt

      # -n auto spreads the suite over every runner core (pytest-xdist is in
      # requirements.txt); pytest-cov merges the workers' coverage, and every
      # worker loads conftest.py, so the state-file redirects hold in each.
      # -q cancels pyproject's -v: 1368 test names were most of the log.
      - name: Run tests with coverage
        run: python -m pytest -n auto -p no:sugar -q

  # The pytest suite replaces the whole `tk` module so it can never reach a
  # display, which means the lock-screen widget behaviour it guards cannot be
  # asserted there. This job runs the real-Tk half against a throwaway X
  # server. See scripts/verify_lock_popup_safety.py.
  lock-popup-safety:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.x"
      - uses: astral-sh/setup-uv@v10.2.0
        with:
          enable-cache: true
          cache-dependency-glob: requirements.txt

      # No apt step: the runner image already ships xvfb-run, and
      # setup-python's interpreter has its own tkinter (python3-tk is for the
      # system python, which this job never runs). The apt-get update +
      # install cost ~35 s. If either ever goes missing the check does not
      # skip -- _xvfb_reexec returns 1 without xvfb-run, and the import fails
      # without tkinter.
      - name: Install dependencies
        run: |
          uv pip install --system -r requirements.txt
          # The script imports screen_locker directly rather than through
          # pytest, which would put the rootdir on sys.path for it.
          uv pip install --system -e . --no-deps

      - name: Sport selector survives gatelock's recovery tick
        # Run as a module (like the screen-fits gate) so scripts/ resolves as a
        # package and the check can import the helpers it was split into.
        run: python3 -m scripts.verify_lock_popup_safety

  # The two coverage bars below used to run only in the local pre-push hook,
  # which became a 1-second stamp check on 2026-09-20 (pre-commit's manual
  # stage holds them now). Nothing else in CI runs the Flutter or web suites,
  # so these jobs are the only place the 100% bars are enforced on every push.
  #
  # The Flutter suite took ~150 s on one runner, nearly all of it compiling 77
  # test files, so it runs as FLUTTER_SHARDS buckets of whole files in
  # parallel and flutter-coverage applies the unchanged 100% bar and
  # every-lib-file-present guard to their union.
  flutter-shard:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        shard: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
    name: flutter test (shard ${{ matrix.shard }})
    steps:
      - uses: actions/checkout@v4

      # The slim cached SDK (utils/flutter-setup): subosito's full-SDK
      # cache cost ~38 s to restore even on a hit.
      - uses: kuhyx/utils/flutter-setup@flutter-setup-v1
        with:
          flutter-version: 3.47.7
          working-directory: stronglift_replacement/workout_app

      - name: flutter test --coverage, bucket ${{ matrix.shard }}
        run: bash scripts/check_flutter_coverage.sh --shard "${{ matrix.shard }}/$FLUTTER_SHARDS"

      - uses: actions/upload-artifact@v4
        with:
          name: flutter-lcov-${{ matrix.shard }}
          path: stronglift_replacement/workout_app/coverage/lcov.info
          if-no-files-found: error
          retention-days: 1

  flutter-coverage:
    needs: flutter-shard
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v4
        with:
          pattern: flutter-lcov-*
          path: lcov-shards

      - name: flutter test --coverage, 100% of lib/ (workout app)
        run: bash scripts/check_flutter_coverage.sh --merged "$FLUTTER_SHARDS" lcov-shards/*/lcov.info

  web-coverage:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: 24.21.0
          cache: npm
          cache-dependency-path: web/package-lock.json

      - name: vitest --coverage, 100% (status web UI)
        run: |
          npm --prefix web ci
          npm --prefix web run coverage