name: Windows

permissions:
  contents: read

# Non-blocking Windows runs (#420; macOS dropped from CI in #571): never on pull requests or in the merge queue, and no context
# here is a required check. A red run is fixed at its cause before the workspace cutover (#334).
on:
  push:
    branches: [main]
  schedule:
    - cron: "17 3 * * *"
  workflow_dispatch:

# Every run gets its own group (run_id), so no main commit's run is ever cancelled or dropped as pending.
concurrency:
  group: ${{ github.workflow }}-${{ github.run_id }}
  cancel-in-progress: false

env:
  PYTHONFAULTHANDLER: "1"

# Time limit rule as in test.yml: ceil(1.5 x the slowest of three recent green runs on main) + 3
# minutes, never under 5, timed as whole-job wall time. One matrix job, so the slowest leg of each
# run counts (tests/vendor/ci-workflow.test.mjs recomputes it, #493).
# Measured 2026-10-29 on main runs 40935337099 (dd247e3), 40938407252 (dd247e3), 40941240624 (dd247e3):
#   slowest leg: 7m24s (py3.12 windows) / 7m31s (py3.13 windows) / 7m32s (py3.14 windows) -> 15 min
#     (windows 4m56s-7m32s)
#   native-trash-linux (#543) has no green main runs yet: it installs the dev requirements and runs
#     one test module, about 1 minute by the same estimate, so ceil(1.5 x 2) + 3 gives it 6 minutes.
#     Recalibrate after three green runs.
jobs:
  test:
    name: py${{ matrix.python-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest]
        python-version: ["3.12", "3.13", "3.14"]

    steps:
      - uses: actions/checkout@v7

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v7
        with:
          python-version: ${{ matrix.python-version }}
          cache: pip
          cache-dependency-path: requirements-dev.txt

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements-dev.txt

      # The runner's TEMP is on C:, the OS disk, where a flush took about 6 ms
      # and a test database's create-to-delete about 111 ms; on the D: work
      # disk the same took 0.5 ms and 23 ms. Tests write their
      # databases under TEMP, so it moves to a folder on D: (measured in #487,
      # run 40915866444). The runner's TEMP was an 8.3 short name
      # (C:\Users\RUNNER~1\...), so the new one is spelled by its short name too
      # and paths still have to be resolved. D: makes no short names by default
      # (run 40922502209), so they are switched on for it first.
      - name: Keep test files on the work disk (Windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: |
          fsutil 8dot3name set D: 0
          $folder = New-Item -ItemType Directory -Force -Path (Join-Path $env:RUNNER_TEMP "PromptManagerTests")
          $short = (New-Object -ComObject Scripting.FileSystemObject).GetFolder($folder.FullName).ShortPath
          Write-Output "test TEMP: $short (long name $($folder.FullName))"
          if ($short -eq $folder.FullName) { Write-Output "::warning::D: gave the test TEMP no 8.3 short name" }
          "TEMP=$short" >> $env:GITHUB_ENV
          "TMP=$short" >> $env:GITHUB_ENV

      - name: Run tests
        env:
          PM_TEST_SLOWEST: "40"
        run: python -m tests.run_suite -v

  # The same tests as the fake mount table, on a real ext4 mount used as the output root (#543). A
  # runner can mount with sudo; the tests run as the normal user, so owner and mode checks are real.
  native-trash-linux:
    name: native trash on a real mount
    runs-on: ubuntu-latest
    timeout-minutes: 6

    steps:
      - uses: actions/checkout@v7

      - name: Set up Python
        uses: actions/setup-python@v7
        with:
          python-version: "3.12"
          cache: pip
          cache-dependency-path: requirements-dev.txt

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements-dev.txt

      - name: Mount an ext4 image
        run: |
          truncate -s 64M "$RUNNER_TEMP/drive.img"
          mkfs.ext4 -q "$RUNNER_TEMP/drive.img"
          mkdir "$RUNNER_TEMP/drive"
          sudo mount -o loop "$RUNNER_TEMP/drive.img" "$RUNNER_TEMP/drive"
          sudo rmdir "$RUNNER_TEMP/drive/lost+found"
          sudo chown "$(id -u):$(id -g)" "$RUNNER_TEMP/drive"
          findmnt "$RUNNER_TEMP/drive"

      - name: Native trash proof
        timeout-minutes: 4
        run: PM_TRASH_MOUNT="$RUNNER_TEMP/drive" python -m unittest tests.test_trash_mount_root -v