name: Windows Free Tests

# Curated subset of the free test suite that runs on a paid faster Windows runner.
#
# Codex's v1.18.0.0 review flagged that the existing evals.yml workflow uses
# a Linux container, so a windows-latest matrix entry there isn't a drop-in.
# This workflow is non-container, runs the curated Windows-safe subset, plus
# targeted resolver tests that exercise the Bun.which-based claude binary
# resolution + the GSTACK_CLAUDE_BIN override path on Windows.
#
# Runner: GitHub-hosted free `windows-latest`. The whole rest of CI runs on
# Ubicloud (Linux), but Ubicloud doesn't ship Windows runners and we don't
# want to flip on GitHub's org-level larger-runner billing for just this one
# job. 4 cores, ~60s spin-up, $0. The wave-coverage tests this runs are
# small enough that total job time stays under 2 minutes.
#
# What this DOES NOT do (still out of scope, tracked as follow-up):
#   - Run the full free suite on Windows. The 24 tests that hardcode /bin/sh,
#     spawn('sh',...), or raw /tmp/ paths are excluded by scripts/test-free-shards.ts
#     --windows-only. They need POSIX-bound surfaces to be ported off shell
#     primitives before they can run on Windows.
#   - Run Playwright/browser-backed tests. Browse server bring-up on Windows is
#     a separate concern (PR #1238 windows-pty-bun-pty-fix is in flight).

on:
  pull_request:
    branches: [main]
  workflow_dispatch:
    inputs:
      dia_native_only:
        description: Run disposable ARM64 macOS Dia qualification instead of Windows
        type: boolean
        default: false
      native_diagnostics_only:
        description: Run Windows launch diagnostics and credential regressions without qualification
        type: boolean
        default: false
      dia_launch_comparison:
        description: Compare protected Dia launch under Bun and Node in separate fresh Mac jobs
        type: boolean
        default: false
      dia_gui_readiness:
        description: Inspect disposable Mac GUI-session readiness without launching browsers
        type: boolean
        default: false

concurrency:
  group: windows-free-${{ github.event.pull_request.number || github.run_id }}
  cancel-in-progress: true

# Test-only lane — no token writes.
permissions:
  contents: read

jobs:
  windows-free-tests:
    if: ${{ !inputs.dia_native_only && !inputs.dia_launch_comparison && !inputs.dia_gui_readiness }}
    # Ubicloud Windows runner (same provider as the Linux evals workflow).
    # To revert: swap to `windows-latest` (GitHub's free 4-core Windows runner).
    runs-on: windows-latest
    timeout-minutes: 15

    steps:
      - uses: actions/checkout@v7

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: 1.4.0

      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38
        with:
          node-version: 24.18.0

      # bun install was 35s of a 55s job, all network. Cache keyed on the
      # lockfile; bun's install cache lives under ~/.bun/install/cache on
      # every platform.
      - uses: actions/cache@v6
        with:
          path: ~/.bun/install/cache
          key: windows-bun-${{ hashFiles('bun.lock') }}
          # A lockfile bump starts from the previous cache instead of cold
          # (restore alone costs ~26s; without this a bump pays it for nothing).
          restore-keys: |
            windows-bun-

      - name: Configure git identity (required by tests that init temp repos)
        run: |
          git config --global user.email "windows-ci@gstack.test"
          git config --global user.name "Windows CI"
          git config --global init.defaultBranch main
        shell: bash

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Build server-node.mjs (required by Windows browse path)
        # browse/src/cli.ts module-level throws on Windows if server-node.mjs
        # is missing — Bun can't drive Playwright's Chromium on Windows
        # (oven-sh/bun#4253). The bundle must exist for any test that
        # transitively loads cli.ts to even import. We build only the
        # Node-compatible server bundle here; full `bun run build` would
        # also compile every binary which is slow and unnecessary for tests.
        run: bash browse/scripts/build-node-server.sh
        shell: bash

      - name: Generate host SKILL.md outputs (.agents, .factory)
        if: ${{ !inputs.native_diagnostics_only }}
        # The golden-file regression tests in test/gen-skill-docs.test.ts read
        # .agents/skills/gstack-ship/SKILL.md and .factory/skills/gstack-ship/
        # SKILL.md. Both are gitignored — generated on demand by gen:skill-docs.
        # On Mac/Linux CI the existing eval workflow regenerates these as part
        # of its own pipeline; the windows-free-tests lane doesn't share that
        # so it must regenerate explicitly.
        run: bun run gen:skill-docs --host all
        shell: bash

      - name: Install Chromium for the Node worker smoke
        run: bunx playwright install chromium

      # The Windows job verifies the new portability work this PR delivers,
      # not the entire free suite. After v1.20.0.0 ships, full-suite Windows
      # parity is a P4 follow-up TODO that depends on porting many tests off
      # POSIX-bound surfaces (raw /tmp paths, /bin/bash hardcodes, bash
      # shebang spawns, mode-bit assertions, deleted v1.14 sidebar refs, etc).
      #
      # The curated subset enumeration in scripts/test-free-shards.ts is
      # retained for future expansion — `bun run test:windows --list` gives
      # contributors a starting point to grow Windows coverage incrementally.
      #
      # What we verify here is exactly the new code paths v1.20.0.0 ships:
      #  - bin/gstack-paths state-root resolution (test/gstack-paths.test.ts)
      #  - browse/src/claude-bin.ts Bun.which wrapper + override + arg-prefix
      #    resolution including the GSTACK_CLAUDE_BIN=wsl PATHEXT path
      #    (browse/test/claude-bin.test.ts)
      #  - scripts/test-free-shards.ts curation logic itself
      #    (test/test-free-shards.test.ts)

      - name: Run curated Windows-safe suite
        if: ${{ !inputs.native_diagnostics_only }}
        # Replaces the previous hand-listed 13-file subset, which drifted from
        # the curation registry it was supposed to sample. The runner's
        # --windows-only curation (scripts/test-free-shards.ts) is the single
        # source of truth: POSIX-bound tests are excluded by pattern there, so
        # growing/pruning Windows coverage is one list, not two. If a test is
        # red here because it's genuinely POSIX-bound, add it to the curation
        # exclusions — don't resurrect a hand list in this file.
        env:
          GSTACK_FREE_JOBS: '2'
          # Point os.tmpdir() at the runner temp so the shard logs land
          # somewhere the artifact step below can glob.
          TEMP: ${{ runner.temp }}
          TMP: ${{ runner.temp }}
        run: bun run test:windows
        shell: bash

      - name: Run focused native launch and credential diagnostics
        if: inputs.native_diagnostics_only
        shell: bash
        run: |
          set -o pipefail
          status=0
          bun test browse/test/cookie-import-native-job.test.ts --test-name-pattern 'native Windows launch diagnostics|a locked real Edge profile|real Edge synthetic profile' 2>&1 | tee "$RUNNER_TEMP/gstack-free-test-native-diagnostics.log" || status=1
          bun test browse/test/cookie-credential-deadline.test.ts browse/test/cookie-import-node.test.ts browse/test/bun-polyfill.test.ts 2>&1 | tee "$RUNNER_TEMP/gstack-free-test-credential-diagnostics.log" || status=1
          exit "$status"

      # Same diagnosability contract as free-tests.yml: a red lane must
      # carry the WHY (the runner's quiet console names files, not causes).
      # (#2561 was written against the old hand-listed subset; its two new
      # test files are pure-TS and flow into the --windows-only curation
      # automatically, so no per-file entry is needed here.)
      - name: Upload full shard logs
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: windows-free-test-shard-logs
          path: ${{ runner.temp }}/gstack-free-test-*.log
          if-no-files-found: ignore

  cookie-native-qualification:
    if: github.event_name == 'workflow_dispatch' && !inputs.dia_native_only && !inputs.native_diagnostics_only && !inputs.dia_launch_comparison && !inputs.dia_gui_readiness
    runs-on: windows-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
        with:
          persist-credentials: false
      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6
        with:
          bun-version: 1.4.0
      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38
        with:
          node-version: 24.18.0
      - name: Install pinned dependencies
        run: bun install --frozen-lockfile
      - name: Build the qualified Node server inputs
        run: bash browse/scripts/build-node-server.sh
        shell: bash
      - name: Qualify owned native cookie extraction
        run: ./.github/scripts/run-cookie-native-qualification.ps1 -OutputRoot "$env:RUNNER_TEMP"
      - name: Preserve qualification evidence
        if: always()
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a
        with:
          name: cookie-native-qualification
          path: ${{ runner.temp }}/cookie-native-qualification-*/
          if-no-files-found: error

  dia-native-qualification:
    if: github.event_name == 'workflow_dispatch' && (inputs.dia_native_only || inputs.dia_launch_comparison || inputs.dia_gui_readiness)
    runs-on: macos-15
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        runtime: ${{ fromJSON(inputs.dia_launch_comparison && !inputs.dia_gui_readiness && '["bun","node"]' || '["bun"]') }}
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
        with:
          persist-credentials: false
      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6
        with:
          bun-version: 1.4.0
      - name: Validate GUI readiness selection
        if: inputs.dia_gui_readiness
        env:
          OTHER_DIA_MODES: ${{ inputs.dia_native_only || inputs.dia_launch_comparison || inputs.native_diagnostics_only }}
        run: |
          bun --no-env-file --no-install --no-macros --config=/dev/null -e '
          if (process.env.OTHER_DIA_MODES !== "false") {
            console.error("dia_gui_readiness must be selected alone");
            process.exit(1);
          }
          '
      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38
        if: inputs.dia_launch_comparison && !inputs.dia_gui_readiness
        with:
          node-version: 24.18.0
          architecture: arm64
      - name: Install pinned dependencies
        if: ${{ !inputs.dia_gui_readiness }}
        run: bun install --frozen-lockfile
      - name: Install the synthetic destination browser
        if: ${{ !inputs.dia_gui_readiness }}
        run: bunx --no-install playwright install chromium
      - name: Inspect GUI readiness without browser or Keychain access
        if: inputs.dia_gui_readiness
        env:
          GSTACK_DIA_NATIVE_QUALIFY: '1'
        run: bun --no-env-file --no-install --no-macros --config=/dev/null .github/scripts/run-dia-native-qualification.ts --gui-readiness-only
      - name: Qualify native Dia discovery, decryption, and import
        if: ${{ !inputs.dia_launch_comparison && !inputs.dia_gui_readiness }}
        env:
          GSTACK_DIA_NATIVE_QUALIFY: '1'
        run: bun --no-env-file --no-install --no-macros --config=/dev/null .github/scripts/run-dia-native-qualification.ts
      - name: Compare protected native Dia launch without qualification credit
        if: inputs.dia_launch_comparison && !inputs.dia_gui_readiness
        env:
          GSTACK_DIA_NATIVE_QUALIFY: '1'
          COMPARISON_RUNTIME: ${{ matrix.runtime }}
        run: bun --no-env-file --no-install --no-macros --config=/dev/null .github/scripts/run-dia-native-qualification.ts --launch-comparison "$COMPARISON_RUNTIME"
      - name: Preserve only the sanitized qualification receipt
        if: always()
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a
        with:
          name: ${{ inputs.dia_gui_readiness && 'dia-gui-readiness' || inputs.dia_launch_comparison && format('dia-launch-comparison-{0}', matrix.runtime) || 'dia-native-qualification' }}
          path: ${{ runner.temp }}/dia-native-qualification.json
          if-no-files-found: error