name: CI

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

# Cancel a superseded PR run (it is on a stale commit); never cancel a
# push run — it is already producing the post-merge signal. The mount job
# boots a real DSH + Chromium, so the savings matter there most.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  ci:
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@v7
        with:
          # Tests run git log against this repository and need the full history.
          fetch-depth: 0
      # pnpm version is pinned via packageManager in package.json; the action
      # reads it from there (specifying both makes action-setup fail on
      # purpose with ERR_PNPM_BAD_PM_VERSION).
      - uses: pnpm/action-setup@v6
      - uses: actions/setup-node@v7
        with:
          node-version: 22
          cache: pnpm
      # The plugin's git revert/cherry-pick spawn git without setting an
      # identity (deliberate, see tests/smoke.spec.ts) and rely on ambient
      # config; the runner has none by default.
      - name: Configure git identity for tests
        run: |
          git config --global user.name "dsh-apes-sidebar-ci"
          git config --global user.email "ci@dsh.invalid"
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Typecheck
        run: pnpm typecheck
      - name: Lint
        run: pnpm lint
      - name: Test
        run: pnpm test
      - name: Build
        run: pnpm build
      # The consumer-facing declaration surface guard: a browser-only plugin
      # (no @types/node, skipLibCheck: false) must type-check against the
      # shipped lib/types. Runs AFTER build (it reads the built output).
      - name: Check consumer type surface
        run: pnpm check:consumer-types

  # Windows parity lane for the pure-logic suite. The codebase carries real
  # win32 branches (shell parsing, WSL path projection, the PowerShell
  # installer) that mock-injection tests alone cannot validate — this lane
  # runs the same typecheck / test / build / consumer-type-surface steps on
  # a real Windows runtime. The plugin-mount lane (real DSH + Playwright
  # Chromium) stays ubuntu-only and is deliberately NOT mirrored here.
  ci-windows:
    runs-on: windows-latest
    timeout-minutes: 30
    defaults:
      run:
        # The runner ships Git Bash: multi-line steps and
        # scripts/check-consumer-types.sh work verbatim.
        shell: bash
    steps:
      - uses: actions/checkout@v7
        with:
          # Tests run git log against this repository and need the full history.
          fetch-depth: 0
      # pnpm version is pinned via packageManager in package.json; the action
      # reads it from there (specifying both makes action-setup fail on
      # purpose with ERR_PNPM_BAD_PM_VERSION).
      - uses: pnpm/action-setup@v6
      - uses: actions/setup-node@v7
        with:
          node-version: 22
          cache: pnpm
      # Same rationale as the ci job: smoke tests spawn git without an
      # identity and rely on ambient config, which the runner lacks.
      - name: Configure git identity for tests
        run: |
          git config --global user.name "dsh-apes-sidebar-ci"
          git config --global user.email "ci@dsh.invalid"
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Typecheck
        run: pnpm typecheck
      - name: Lint
        run: pnpm lint
      # `test:windows` runs the whole suite in ONE fork (`--maxWorkers=1`),
      # not `pnpm test`'s unbounded pool. Two distinct Windows-only failures
      # motivated it, both recorded in docs/plans/2026-09-10-dsh-0.1.5-rc.2-adaptation.md:
      #
      #   1. Six red runs were real 5000 ms vitest timeouts in specs that
      #      really start a process (tests/agent-pty:71/:106,
      #      tests/install-powershell:105 — a cold powershell.exe start
      #      measured 12.1 s, tests/git.spec.ts:85 at 9.6 s). The suite now
      #      declares its own budgets (global testTimeout 15 s, 30 s in the
      #      two heaviest describes), and serial execution stops the
      #      process-spawning specs starving each other on a 2-core runner.
      #   2. Four runs died at teardown with `[vitest-pool]: Worker forks
      #      emitted error / Worker exited unexpectedly` while reporting
      #      N-1 of N files passed and zero FAIL lines — a worker recycling
      #      race, not a test failure. It survived --maxWorkers=2, so the
      #      lane now recycles nothing at all.
      #
      # No retries: they would hide a real regression instead of removing the
      # race. The cost is wall-clock (the Windows step runs several minutes
      # against a 30-minute job budget), not signal.
      - name: Test
        run: pnpm test:windows
      - name: Build
        run: pnpm build
      - name: Check consumer type surface
        run: pnpm check:consumer-types

  # Pack the plugin as an npm tarball, mount it into a REAL DSH instance
  # through the official `dsh plugin --profile web add` channel, and render
  # the DSH web UI headlessly (Playwright Chromium) to prove the plugin
  # mounts without crashing the shell. Drives `pnpm test:mount`, which boots
  # a keyless `dsh web` against a scratch profile and sweeps every built-in
  # sidebar tab. No API key needed — the whole lane is deterministic.
  plugin-mount:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    # CI runs must never report to the production telemetry endpoint baked
    # into the DSH composition (same guard DSH's own CI uses).
    env:
      DSH_TELEMETRY_DISABLED: '1'
    steps:
      - uses: actions/checkout@v7

      # pnpm version is pinned via packageManager in package.json; the action
      # reads it from there (specifying both makes action-setup fail on
      # purpose with ERR_PNPM_BAD_PM_VERSION).
      - uses: pnpm/action-setup@v6

      - uses: actions/setup-node@v7
        with:
          node-version: 22
          cache: pnpm

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

      # Pin the DSH CLI the lane mounts into; the profile's bundle stack
      # (dsh-base / dsh-web-app) resolves from this installation. Keep in
      # step with the plugin's @deepseek-ai/* peer range when bumping.
      # DSH 0.1.5-rc.2 is the `next` dist-tag on npm (`latest` still points
      # at rc.1); the lanes speak the slash-only RPC dialect
      # (tests/e2e/host-protocol.ts).
      #
      # The larger heap is the fix for one of the two ways this step used to
      # die (runs 34490912649 and 34363627184 on the alpha line): the pinned
      # version's TRANSITIVES are declared as floating `^` ranges, so while
      # upstream publishes a prerelease in stages (0.1.5-rc.2 went out
      # 14:43-14:57 on 2026-09-10) npm resolved a mixed rc.1/rc.2 peer graph —
      # 3062 ERESOLVE lines, then "Ineffective mark-compacts near heap limit"
      # (exit 134). The other failure mode was a hard ETARGET on a sibling
      # package that appeared minutes later; pinning a version that is fully
      # published (not mid-flight) is the fix for that one.
      #
      # Peer resolution stays ON: `--legacy-peer-deps` was tried in the first
      # cut of this fix and made the install broken rather than robust — it
      # skips exactly the peers a global install has to supply, and
      # @deepseek-ai/dsh-app-boot requires `@deepseek-ai/cordis-plugin-group`
      # (a peer, not a dependency) at boot, so the CLI died with
      # ERR_MODULE_NOT_FOUND before the smoke could even start. Verified
      # locally that the plain install resolves it.
      - name: Install dsh CLI (pinned)
        env:
          NODE_OPTIONS: --max-old-space-size=4096
        run: npm install -g @deepseek-ai/dsh@0.1.5-rc.2

      # lib/ is gitignored; the tarball is produced from this build.
      - name: Build and pack the npm tarball
        run: pnpm build && pnpm pack

      - name: Install Playwright Chromium
        run: pnpm exec playwright install --with-deps chromium

      - name: Mount + headless-render smoke
        run: pnpm test:mount

      # Aggregate double-mount regression: a fixture aggregate bundle mounts
      # dsh-apes-sidebar under its own entry id BEFORE the plugin's bundle
      # row; the plugin must back off (no duplicate /sidebar/api, boot OK).
      # Uses the pinned DSH CLI installed above.
      - name: Aggregate double-mount regression
        env:
          DSH_CMD: dsh
        run: pnpm test:mount:aggregate

      - name: Upload Playwright report on failure
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: playwright-report
          path: |
            playwright-report/
            test-results/
          if-no-files-found: ignore