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# Cancel a superseded PR run (it is on a stale commit); never cancel a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
      - uses: pnpm/action-setup@v6
        with:
          version: 11
      - 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-better-sidebar-ci"
          git config --global user.email "ci@dsh.invalid"
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Typecheck
        run: pnpm typecheck
      - 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

  # 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

      - uses: pnpm/action-setup@v6
        with:
          version: 11

      - 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.
      - name: Install dsh CLI (pinned)
        run: npm install -g @deepseek-ai/dsh@0.1.1-rc.1

      # 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-better-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: bash scripts/e2e-aggregate-mount.sh

      - 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