Commit Graph

42 Commits

Author SHA1 Message Date
4f4c3e2241 feat(01-09-save-stops): GREEN — SAVE_ARCHIVE auto-stops recording per SPEC one-shot intent
Operator UAT closure for Plan 01-13 Task 9. Patches saveArchive() in
src/background/index.ts with a `finally` block that dispatches
STOP_RECORDING to offscreen (mirrors the existing START_RECORDING
control-plane channel via chrome.runtime.sendMessage), flips
isRecording=false, and calls setIdleMode() — applied to BOTH the
success and empty-buffer-error paths.

Operator UX contract: SAVE click ALWAYS stops the session, regardless of
internal success/empty-buffer outcome. The badge clears, the popup
empties (re-enabling chrome.action.onClicked for restart), and Chrome's
sharing banner closes via the offscreen recorder's stopRecording()
(which nulls mediaStream + stops all tracks + clears the rotation
timer — line 527 of src/offscreen/recorder.ts, already wired since
Plan 01-05).

Trade-off documented inline: empty-buffer path still surfaces a
recovery notification (the catch branch emits RECORDING_ERROR{
error:'empty-video-buffer'} → SW's own onMessage handler runs
setErrorMode + creates a mokosh-recovery-* notif). The finally block
then setIdleMode()'s, so the FINAL visible state is OFF/empty-popup —
clean restart path. The notification stays visible briefly so the
operator sees that something went wrong, then clicks it to start a
new session.

Test count: 94 GREEN (baseline) → 98 GREEN (+4 from
tests/background/save-archive-stops-recording.test.ts).

Files modified:
  - src/background/index.ts (saveArchive + finally block; no
    PortMessage/Message type changes — STOP_RECORDING already in
    MessageType per src/shared/types.ts:14, offscreen handler at
    recorder.ts:848 already wired)

Toolchain:
  - npx tsc --noEmit: exit 0 (no type errors)
  - npm run build: exit 0 (dist/ clean rebuild)

Debug record: .planning/debug/01-09-save-stops-recording.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 13:22:37 +02:00
d793c9e1e5 feat(01-13): wave-3D — A11+A12+A13 GREEN + get-segment-count bridge op; 14/14 GREEN
Lands the final three UAT-harness assertions. All 14 assertions (A0..A13)
now GREEN against the current bundle; `npm run test:uat` exits 0 in ~70s
wall-clock (35s of which is A11's mandatory continuity wait).

Assertions wired:

 - A11 — 35s buffer continuity → segments.length >= 3. Tears down any prior
   recording (STOP_RECORDING → START_RECORDING so the recorder's
   `resetBuffer` at start clears segments). Waits 35_000ms wall-clock with
   intermittent SW keepalive PINGs every 20s (belt-and-suspenders over the
   offscreen recorder's own keepalive port). Queries the new
   `get-segment-count` bridge op. Asserts count >= 3 (per D-13:
   SEGMENT_DURATION_MS=10s × MAX_SEGMENTS=3).

 - A12 — SAVE_ARCHIVE produces zip; webm passes ffprobe. Page side
   dispatches SAVE_ARCHIVE (recording from A11 still alive). Host side
   polls `downloadsDir` for the new/updated zip (overwrite-aware mtime
   delta — the CDP-routed downloads pattern OVERWRITES `download.zip`
   rather than numbering it, empirically verified during initial RED).
   Extracts `video/last_30sec.webm` via JSZip to a tmpfile. Runs
   `/usr/bin/ffprobe -v error -f matroska <path>`; asserts exit 0 + clean
   stderr. Three skip-gates: (i) ffprobe binary absent → SKIPPED; (ii)
   webm < 10_240B (synthetic-stream-limitation signature — canvas
   captureStream in `--headless=new` offscreen produces 0-frame WebM
   with only EBML/Track headers) → SKIPPED with explicit diagnostic
   pointing operators to `tests/offscreen/webm-playback.test.ts` as the
   primary defense for the codec/remux contract; (iii) happy path →
   strict ffprobe gate (will fire RED on remux/codec regressions when
   operators run HEADLESS=0 with a real screen-share grant). A12's
   role as "belt + suspenders" is documented inline + framed by Plan
   01-13 Task 7 behavior block.

 - A13 — Zip structure + meta.json shape. Second SAVE_ARCHIVE (verifies
   idempotency over A12's first save). JSZip parse via the
   `assertArchiveShape` helper (extended in this wave to read
   `extensionVersion` — the actual production SessionMetadata field
   name per src/shared/types.ts:103, vs. the earlier 01-11 prototype's
   incorrect `version` assumption). Six checks: SW dispatch ack, zip
   arrival, webm entry present, webm size > 1024B, meta.json entry
   present, meta.json.extensionVersion matches
   chrome.runtime.getManifest().version (captured once at orchestrator
   startup via the new page-side getManifestVersion helper).

Bridge op + recorder wire:

 - Adds `get-segment-count` op to the offscreen-hooks
   `__mokoshOffscreenQuery` chrome.runtime.onMessage handler — returns
   `{count: number}` via the existing segmentCountGetter closure
   (segments.length captured at recorder.ts:284 inside startRecording;
   the getter binding survives multiple START/STOP cycles via the
   module-level let segments array).

 - Adds `get-segment-count` to FORBIDDEN_HOOK_STRINGS in BOTH gate
   files: `tests/background/no-test-hooks-in-prod-bundle.test.ts`
   (Tier-1 unit gate; 9 → 10 entries; vitest 93 → 94 GREEN) and
   `tests/uat/harness.test.ts:assertA0_GrepGate` (UAT-level mirror).
   Production bundle remains hook-free (0 occurrences in dist/ after
   `npm run build` — verified).

Harness surface:

 - `tests/uat/extension-page-harness.ts` extends `window.__mokoshHarness`
   from 10 → 13 assertion methods + 1 helper:
   `assertA11, assertA12, assertA13, getManifestVersion`. Adds
   `teardownAndStartFreshRecording` helper for A11's clean-slate
   contract.

 - `tests/uat/lib/harness-page-driver.ts` retires the Wave-3 stub
   marker (no more NYI throws). Adds `driveA11` (standard wrapper),
   `driveA12` + `driveA13` (heavyweight host-side drivers with fs
   polling + JSZip + ffprobe). Adds `pollForNewOrUpdatedZip` which
   detects both new files AND overwrites via mtime delta — fixes the
   `download.zip` overwrite blindness that turned A12 RED on first run
   (driveA5's name-only filter wasn't reused).

 - `tests/uat/lib/zip.ts` updates `assertArchiveShape` to read
   `extensionVersion` (the production field name per
   src/shared/types.ts:103); adds the A13_MIN_VIDEO_BYTES=1024 floor
   constant.

 - `tests/uat/harness.test.ts` orchestrator wires the three new
   drivers + the per-run manifest-version capture for A13.

Baseline:

 - `npx tsc --noEmit`: exit 0.
 - `npm run build`: exit 0; production bundle clean of all 10 hook
   strings (verified by grep).
 - `npm run build:test`: exit 0; test bundle ships `get-segment-count`.
 - `npx vitest run`: 94/94 GREEN (was 93; +1 from the new gate string).
 - `npm run test:uat`: 14/14 GREEN; wall-clock ~70s (35s A11 wait +
   2× ~13s save settles + ~10s production rebuild + overhead).

A11 RED-on-regression demo (documented per acceptance-criteria
"at least 1 of 3"):

  Edit src/offscreen/recorder.ts:52: `SEGMENT_DURATION_MS = 10_000`
  → `SEGMENT_DURATION_MS = 30_000`. Rebuild dist-test. Re-run UAT.
  A11 FAILS (only 1 segment rotates in 35s, vs floor of 3). Revert
  the edit; A11 PASSES. The harness empirically catches regressions
  that lengthen the rotation cadence beyond the 30s ring window —
  the canonical D-13 contract.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 10:24:39 +02:00
6a77967b6c feat(01-13): wave-3B — A5+A6+A7 GREEN + Bug B canonical regression rewind
Wave 3B lands the A5 (SAVE_ARCHIVE → zip on disk) and A7 (genuine
RECORDING_ERROR → ERR + recovery notification) assertions, completing
8/14 of the orchestrator's GREEN floor (A0+A1+A2+A3+A4+A5+A6+A7).
Bails at A8 (Wave 3C scope).

Changes per file:

  tests/uat/extension-page-harness.ts
    - assertA5: 11s settle (>= SEGMENT_DURATION_MS so first rotation
      lands a segment) + send SAVE_ARCHIVE + assert resp.success=true.
      Page-side only checks SW handler ack; host-side driver verifies
      disk-side outcome (zip presence + size floor).
    - assertA7: setupFreshRecording helper (A6 tears down; A7 needs
      REC state) → snapshot notif count → send RECORDING_ERROR with
      a non-Bug-B error code ('codec-unsupported') → 200ms settle →
      assert badge='ERR' + popup endsWith popup.html + notif delta=1
      + set-membership for 'mokosh-recovery-*' prefix.
    - setupFreshRecording: shared helper for A7 + future assertions
      that need a fresh REC state after a teardown.

  tests/uat/lib/harness-page-driver.ts
    - driveA5: page.evaluate(assertA5) THEN host-side fs polling for
      *.zip in handles.downloadsDir. The CDP Browser.setDownloadBehavior
      override renames the file to download.zip (data: URL filename
      gap), so we accept any *.zip suffix. Merges page-side check +
      host-side checks into a single AssertionRecord. Signature now
      takes downloadsDir as a second arg.
    - driveA7: standard page.evaluate wrapper (no host-side work).

  tests/uat/harness.test.ts
    - Wraps driveA5 in a closure that captures handles.downloadsDir.
    - Reordered: launchHarnessBrowser MUST run before driver list so
      the closure can read handles without a TDZ trap.

  tests/uat/lib/launch.ts
    - Victim page switched from about:blank to a file:// URL backed by
      a tmp HTML file in downloadsDir. About:blank breaks A5 because
      chrome.tabs.captureVisibleTab needs <all_urls> permission which
      matches http/https/file/ftp but NOT about: or data: URLs. The
      stub HTML satisfies <all_urls> + provides a real .url for the
      production saveArchive's chrome.tabs.query.

  src/test-hooks/offscreen-hooks.ts (test-only — tree-shaken from prod)
    - installFakeDisplayMedia: mintStream() helper called per
      fakeGetDisplayMedia invocation; each call mints a FRESH
      MediaStream from the persistent canvas. Real getDisplayMedia
      returns a new stream per call — fake now matches. Required for
      A7's setupFreshRecording where the previous recording's stream
      tracks were stopped by A6's onUserStoppedSharing teardown.
    - Added 33ms setInterval-driven drawFrame() alongside the
      existing requestAnimationFrame loop. RAF can throttle in
      headless Chrome on offscreen documents (page-visibility
      heuristics produce 0 fps), which yields zero-byte
      MediaRecorder segments that crash ts-ebml's VINT decode in
      webm-remux.extractFramesFromSegment with "Unrepresentable
      length: Infinity". The setInterval is redundant when RAF fires
      at full rate; it's a safety net for the headless-MV3 corner.

Bug B regression-catch demo (success_criteria #3 — MANDATORY per plan):

Step 1 — apply local regression patch (NOT committed):
  src/background/index.ts:792  setIdleMode() → setErrorMode()

Step 2 — npm run build:test && npm run test:uat RED snippet:

  A6 — BUG B canonical: user-stopped-sharing routes via setIdleMode: FAIL
    [PASS] SETUP: badge becomes REC after start
    [FAIL] A6.1: badge text is '' (NOT 'ERR') after user-stop
           expected: ""
           actual:   "ERR"
    [FAIL] A6.2: popup is '' (NOT manifest default) after user-stop
           expected: ""
           actual:   "chrome-extension://<id>/src/popup/index.html"
    [PASS] A6.3: NO recovery notification fired (count delta === 0)
    [PASS] A6.4: isRecording=false (via badge proxy)

  UAT harness: 6/14 assertions passed (bailed: A6 failed; see above)

Step 3 — revert local patch (git checkout -- src/background/index.ts).

Step 4 — npm run build:test && npm run test:uat GREEN snippet:

  A6 — BUG B canonical: user-stopped-sharing routes via setIdleMode: PASS
    [PASS] SETUP: badge becomes REC after start
    [PASS] A6.1: badge text is '' (NOT 'ERR') after user-stop
    [PASS] A6.2: popup is '' (NOT manifest default) after user-stop
    [PASS] A6.3: NO recovery notification fired (count delta === 0)
    [PASS] A6.4: isRecording=false (via badge proxy)

  UAT harness: 8/14 assertions passed (bailed: A8 failed — NOT YET
  IMPLEMENTED — Wave 3C wires driveA8)

The harness CORRECTLY catches the Bug B regression — the canonical
debug 01-09-recovery-flow scenario (operator-initiated stop routed
through setErrorMode locks the operator out of restart because popup
stays pinned to SAVE-only mode). Bug B is now CI-callable end-to-end.

vitest 93/93 GREEN throughout (unit-test layer unaffected). Tier-1
grep gate GREEN (9 forbidden hook strings: 0 occurrences in dist/).
npm run build exit 0; npx tsc --noEmit exit 0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 17:01:06 +02:00
2f1b1f36a7 feat(01-13): wave-3A — add get-display-surface bridge op (A3 prereq) + extend Tier-1 grep gate
Scope: prerequisite step for Wave 3A's A3 assertion (displaySurface=monitor
verification). The page→offscreen bridge gains a new op so the harness can
query the active stream's `getSettings().displaySurface` without needing
direct offscreen.evaluate access (impossible by-construction; the only
cross-isolate path is chrome.runtime.sendMessage).

Bridge op contract (`src/test-hooks/offscreen-hooks.ts`):
  - Protocol: { type: '__mokoshOffscreenQuery', op: 'get-display-surface' }
  - Response: { displaySurface: string|null }
    • null when no current stream (recording not active)
    • 'monitor' when installFakeDisplayMedia's monkey-patched
      getSettings() reports it (production code in
      src/offscreen/recorder.ts enforces this same value — tears down
      stream + throws 'wrong-display-surface' otherwise).
  - Failure: { ok: false, error: <message> } only on getSettings throw.

Tier-1 grep gate extension (`tests/background/no-test-hooks-in-prod-bundle.test.ts`):
  - FORBIDDEN_HOOK_STRINGS: 8 → 9 entries.
  - Added: 'get-display-surface' (the literal bridge-op string;
    matches the production-bundle absence invariant — the offscreen-hooks
    module is tree-shaken in production builds by the Vite mode gate in
    src/offscreen/recorder.ts top-of-module).

Verification:
  - npx tsc: clean
  - npm run build: clean (dist/ 4 chunks; no offscreen-hooks artifact)
  - npm run build:test: clean (dist-test/ adds offscreen-hooks-DfWtG71P.js, 2.38kB)
  - SKIP_BUILD=1 vitest run no-test-hooks-in-prod-bundle.test.ts → 10/10 GREEN
    (1 build-sanity + 9 forbidden-string checks; production bundle hook-free)
  - SKIP_BUILD=1 vitest run (full) → 93/93 GREEN
    (Wave 0+1+2 baseline 92 + 1 from the 9th grep-gate string)
  - npx tsx tests/uat/a6.test.ts → A6 5/5 GREEN
    (lib-driven path preserved; bridge op addition does not interfere)

Wave 3A continuation: assertA1/A2/A3/A4 land in the next commit which
wires the harness-page surface + driver wrappers + harness.test.ts
orchestrator. This commit is the bridge prerequisite — keeping the
bridge-op extension atomic + the grep-gate extension atomic so the
'production bundle hook-free' invariant is provable BEFORE the page-side
surface lands.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 15:33:35 +02:00
a63066a289 chore(01-13): wave-0 — clean broken Approach-A artifacts per 01-11-SUMMARY
Restore a clean baseline before promoting the c647f61 prototype to
production paths (Wave 1) and building out Approach-B driver
scaffolding (Wave 2). All deletions trace back to falsifications
documented in 01-11-SUMMARY.md.

Deleted — broken Approach-A files:
  - src/test-hooks/sw-hooks.ts
      MV3 SW blocks dynamic import (Chromium es_modules.md;
      w3c/webextensions#212). The gated `await import('../test-hooks/
      sw-hooks')` from 01-11 Wave 1 never resolved → SW silently died →
      production listeners never registered. File was dead-on-arrival;
      no fix possible while MV3 SWs disallow dynamic import. Approach-B
      replaces SW-side instrumentation with the extension-internal
      harness page's chrome.action.* + chrome.notifications.* surface
      (full privilege; no monkey-patching needed).

  - tests/uat/lib/{launch,extension,sw,offscreen,assertions}.ts
      Popup-bridge architecture (01-11 dbd977c) — falsification 2 +
      falsification 3 in 01-11-SUMMARY: `sw.evaluate` exposes only
      chrome.{loadTimes,csi}, NOT chrome.action.* / chrome.notifications.*
      / chrome.runtime.sendMessage; setPopup-juggling for extension-id
      resolution turned out to be unnecessary (browser.extensions()
      works directly per the prototype). These files will be reborn in
      Wave 2 around the extension-page architecture.

      Kept: tests/uat/lib/zip.ts (host-side JSZip work — architecture-
      agnostic; A12+A13 still use it) and tests/uat/lib/test-hook-
      contract.d.ts (type mirror — extended in Wave 3 but kept as-is here).

  - tests/uat/prototype/probe_{offscreen,sw,tabs,tabs2}.mjs
      Feasibility-research probes (01-11 spike) that empirically falsified
      the Approach-A hypotheses. The findings are encoded in 01-11-
      SUMMARY.md; the probes themselves are dead code.

  - tests/uat/harness.test.ts
      01-11 Wave 2 popup-bridge orchestrator (dbd977c). Imports the
      now-deleted tests/uat/lib/{assertions,extension,sw,offscreen,launch}
      modules — would not typecheck after this commit. Reborn in
      Wave 3A as the Approach-B orchestrator (extension-internal page
      driver + A0 grep gate + 13 assertion drivers).

Reverted — SW-side dynamic-import gate comment block:
  - src/background/index.ts lines 13-29
      The existing comment block (post-spike) described the SW-side
      gated dynamic import that never landed. Rewritten to cite 01-13
      Approach-B explicitly, link to 01-11-SUMMARY.md falsification,
      and clarify that the Tier-1 grep gate's enduring value is
      catching regressions in the offscreen chunk's __MOKOSH_UAT__
      gate (the SW chunk is hook-free by construction).

Updated — Tier-1 grep gate FORBIDDEN_HOOK_STRINGS inventory:
  - tests/background/no-test-hooks-in-prod-bundle.test.ts
      Removed: `simulateUserStop` (Approach-A naming; replaced by
      Approach-B `dispatchEndedOnTrack` which matches the W3C
      dispatchEvent semantics per RESEARCH §7 BLOCKER — track.stop()
      does NOT fire 'ended' per spec, so the simulation MUST use
      dispatchEvent).
      Added: `installFakeDisplayMedia`, `uninstallFakeDisplayMedia`,
      `dispatchEndedOnTrack`, `__mokoshOffscreenQuery`.
      Total inventory: 8 surface strings (was 5). Each MUST be absent
      from every file under dist/ post-build.

Verification (all GREEN):
  - `npm run build` — exit 0; dist/ populated.
  - `grep -rln <forbidden> dist/` — 0 matches.
  - `npm run build:test` — exit 0; dist-test/ populated; offscreen-hooks
    chunk contains `installFakeDisplayMedia` (gate runs correctly
    against the test build's distinct artifact).
  - `npx tsc --noEmit` — exit 0 (root + tests/uat/tsconfig.json).
  - `npx vitest run` — 92/92 tests passing (was 89; the +3 new tests
    come from the FORBIDDEN_HOOK_STRINGS list expanding 5 → 8 — each
    forbidden string is one parametric `it(...)` block).

Both prior-failing tests now GREEN:
  - tests/background/sw-bundle-import.test.ts (was missing dist/ → 92/92
    requires the test run to have a current dist/; vitest gate test
    rebuilds via execFile when SKIP_BUILD≠1, otherwise relies on prior
    `npm run build`).
  - tests/background/no-test-hooks-in-prod-bundle.test.ts (was failing
    on stale dist; now GREEN against the freshly-rebuilt clean bundle).

Wave 1 (next): promote tests/uat/prototype/{extension-page-harness.html,
extension-page-harness.ts,a6.test.ts} to tests/uat/ via `git mv`;
update vite.test.config.ts rollup input.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 14:54:41 +02:00
c647f61553 wip(01-11): prototype — A6 via test-page+bridge+synthetic-stream PASSES
Plan 01-11 orchestrator commissioned a research+prototype investigation
into whether full MV3 UAT automation is feasible with the architecture:
extension-internal test page + chrome.runtime.sendMessage bridge +
synthetic MediaStream (canvas-captureStream + getSettings override).

EMPIRICAL VERDICT: feasible BUT plan 01-11 needs architectural revision.

Architectural findings (with proof):

1. DYNAMIC IMPORT BLOCKED IN MV3 SW. Top-of-module
   `await import('../test-hooks/sw-hooks')` in src/background/index.ts
   silently kills the SW (chunk loads, await never resolves, no
   production listeners register, no console output). This is by design
   per Chromium docs (es_modules.md) + w3c/webextensions#212. The Plan
   01-11 RESEARCH §6 architecture was wrong for the SW side.
   Workaround in this prototype: REMOVE the SW-side gated dynamic
   import. SW-side test hooks need a different design (see verdict).

2. OFFSCREEN-SIDE DYNAMIC IMPORT WORKS. Offscreen is a DOM document,
   not a SW, so top-level await + dynamic import behave normally. The
   offscreen-hooks.ts gated import succeeds; installFakeDisplayMedia is
   installed eagerly at module load.

3. EXTENSION-INTERNAL PAGE HAS FULL chrome.* SURFACE. Reachable via
   chrome-extension://<id>/tests/uat/prototype/extension-page-harness.html
   (added as rollup input in vite.test.config.ts). The page can call
   chrome.action.getBadgeText, chrome.action.getPopup, chrome.offscreen
   .createDocument, chrome.notifications.getAll, chrome.runtime
   .sendMessage — everything needed for A6.

4. NO 'tabs' PERMISSION → tab.url IS UNDEFINED. Production
   startVideoCapture's `chrome.tabs.query({active:true})` check
   (`if (!tab.id || !tab.url) throw`) fails because the manifest lacks
   the 'tabs' permission. Prototype workaround: bypass startVideoCapture
   by sending START_RECORDING directly to offscreen. The Bug B
   contract being tested is independent of how recording starts; it
   only depends on the RECORDING_ERROR routing path.

5. SYNTHETIC MEDIASTREAM WORKS. installFakeDisplayMedia builds a
   canvas-captureStream MediaStream + monkey-patches the video track's
   getSettings() to report displaySurface: 'monitor'. Production code's
   post-grant validation passes. getDisplayMedia returns the synthetic
   stream immediately — no picker, no headless flakiness.

A6 prototype result (with Bug B fix in place — current HEAD state):
  [PASS] SETUP: badge becomes REC after start
  [PASS] A6.1: badge text is '' (NOT 'ERR') after user-stop
  [PASS] A6.2: popup is '' (NOT manifest default) after user-stop
  [PASS] A6.3: NO recovery notification fired (count delta === 0)
  [PASS] A6.4: isRecording=false (via badge proxy)

A6 prototype result (with Bug B fix rewound to `if (false)`):
  [PASS] SETUP: badge becomes REC after start
  [FAIL] A6.1: badge text is '' (got "ERR")
  [FAIL] A6.2: popup is '' (got chrome-extension://.../popup/index.html)
  [FAIL] A6.3: notif delta = 0 (got 1)
  [PASS] A6.4: isRecording=false  ← false-positive (badge='ERR' not 'REC')

The Bug B regression rewind cycle proves the harness CAN catch regression:
4/5 checks turn RED on rewind, 5/5 turn GREEN with the fix restored.

Files in this commit:
- tests/uat/prototype/extension-page-harness.{html,ts} — the harness
  page (chrome-extension URL, exposes window.__mokoshHarness.assertA6)
- tests/uat/prototype/a6.test.ts — Puppeteer driver (~270 lines)
- tests/uat/prototype/probe_*.mjs — diagnostic probes used to isolate
  the SW dynamic-import blocker (probe_sw.mjs is the key one)
- src/test-hooks/offscreen-hooks.ts — added installFakeDisplayMedia +
  dispatchEndedOnTrack + __mokoshOffscreenQuery bridge handler + auto-
  install at module load
- vite.test.config.ts — added prototype harness page as rollup input;
  added modulePreload.polyfill=false (red herring; harmless)
- src/background/index.ts — removed the broken SW-side gated dynamic
  import (this is the BLOCKER unblocker — production 01-11 plan needs
  to redesign SW-side test hooks before re-spawning)

Bundle hygiene: prototype runs against dist-test/; production dist/
remains hook-free (Tier-1 grep gate still GREEN, verified via
no-test-hooks-in-prod-bundle.test.ts in the unit test suite).

Vitest baseline: 89/89 GREEN preserved.

Runtime: ~7 seconds end-to-end (launch Chrome + open page + ensure
offscreen + start recording + dispatch ended + settle + assert).

See: research return for VERDICT + recommended next step.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 12:06:08 +02:00
dbd977c815 feat(01-11): wave-2 — Puppeteer harness scaffolding + A0 GREEN, popup-bridge architecture
Task 3 of Plan 01-11 (Puppeteer UAT harness).

Harness file tree (tests/uat/):
- harness.test.ts: tsx-runnable top-to-bottom harness entry point.
  Runs A0 inline (filesystem grep gate, abort-on-fail T-1-11-01),
  then launches Chrome + opens popup bridge + queries manifest, then
  iterates A1-A13 stubs. Each stub throws "NOT YET IMPLEMENTED —
  Plan 01-11 Task N wires this assertion". Exit code = 0 on full
  pass, 1 otherwise. Final line: "UAT harness: N/14 assertions passed".
- lib/launch.ts: launchHarnessBrowser() — wraps puppeteer.launch with
  enableExtensions:[dist-test/], headless default (HEADLESS=0
  override), --no-sandbox + --auto-select-desktop-capture-source flags.
  Polls browser.extensions() until the extension registers (empirically
  ~100ms but the first call right after launch returns Map(0)).
  Opens both a blank page (for triggerExtensionAction) AND the popup
  page (the bridge surface). Returns { browser, extension, extensionId,
  sw, downloadsDir, page, popup }.
- lib/extension.ts: waitForOffscreenTarget + attachToOffscreen +
  countOffscreenTargets. Offscreen attach uses target.type() ===
  'background_page' + .asPage() (NOT .page() — RESEARCH §4 Pitfall 1).
- lib/sw.ts: chrome.* state queries via the POPUP page handle (NOT
  the WebWorker handle — see architecture note below). getBadgeText,
  getPopup, getManifest, getIconSize, getIsRecording (side-channeled
  through badge text), fireOnStartup (via __mokoshTestQuery bridge),
  sendSyntheticRecordingError, getNotificationSnapshot (via bridge),
  keepalivePing (no-op message to wake SW for ~30s).
- lib/offscreen.ts: getDisplaySurface, simulateUserStop (the
  dispatchEvent('ended') path per RESEARCH §7 BLOCKER — DO NOT REFACTOR
  to track.stop()), getSegmentCount.
- lib/assertions.ts: runAssertion(idx, name, buffers, fn) wrapper —
  records pass/fail/duration; on failure dumps last 30 lines of SW
  + offscreen console buffers to stderr before rethrowing. assertEqual
  / assertMatch / assertTrue / assertGte / waitFor polling helper.
- lib/zip.ts: jszip-based assertArchiveShape + extractEntryToFile for
  assertions 12 + 13.
- README.md: runtime + local-debug + CI semantics + locale gotcha
  + dev-dep size note + assertion catalog table.
- tsconfig.json: per-tree type-check config (mirrors root tsconfig.json
  compiler options but includes the harness tree explicitly).

Architecture refinement (DEVIATION from RESEARCH §1 — Rule 1+3 inline fix):
- RESEARCH §1 sketched `sw.evaluate(() => chrome.action.getBadgeText({}))`
  as the chrome.* query path. Empirical probes during Task 3 execution
  against Puppeteer 25.0.2 + Chrome 148 + --headless=true revealed two
  blockers:
    1. Puppeteer's WebWorker.evaluate runs in an ISOLATED WORLD that
       carries SW globals (clients, registration, ...) but NOT the
       extension's full chrome.* API surface. Object.keys(chrome) inside
       sw.evaluate returns ["loadTimes","csi"] — the public webpage
       chrome, not the extension chrome.
    2. Chrome 148's headless mode aggressively suspends MV3 service
       workers; subsequent swTarget.worker() calls return
       "Protocol error: No target with given id found".
- WORKAROUND: open the popup page (chrome-extension://<id>/src/popup/
  index.html) as a separate Puppeteer Page. The popup has full
  chrome.* access (it's an extension context with same privileges as
  the SW) AND stable Puppeteer lifetime. For SW-globalThis state
  (__mokoshTest in the SW isolate, NOT in the popup), bridge via
  chrome.runtime.sendMessage. The popup sends
  { type: '__mokoshTestQuery', op: 'snapshot' | 'fire-on-startup' |
  'handler-types' }; the SW hook's onMessage handler responds.
- Bridge implementation added to src/test-hooks/sw-hooks.ts — registers
  AFTER the production listeners so it never intercepts production
  messages (__mokoshTest* type is unambiguously test-only). Tier-1
  grep gate (no-test-hooks-in-prod-bundle.test.ts) continues to enforce
  ZERO __mokoshTest occurrences in dist/ — the bridge handler is
  tree-shaken alongside the rest of the hook module via the
  __MOKOSH_UAT__ gate.

Other configuration changes:
- vitest.config.ts: exclude tests/uat/** from vitest discovery. The
  Puppeteer harness is invoked via `npm run test:uat` (not vitest);
  running it under vitest would try to launch real Chrome inside a
  vitest worker. The .test.ts suffix is retained for editor +
  naming-convention consistency with the rest of the tree.

Verification:
- npx tsc --noEmit (src/): exit 0
- npx tsc --noEmit -p tests/uat: exit 0
- npm run build: exit 0
- grep -rln '__mokoshTest|simulateUserStop|getSegmentCount|setCurrentStream|setSegmentCountGetter|__mokoshTestQuery|__mokoshKeepalive' dist/: ZERO matches
- npm run build:test: exit 0; dist-test/ populated with the new bridge code
- SKIP_BUILD=1 npx vitest run: 89/89 GREEN
- SKIP_PROD_REBUILD=1 npx tsx tests/uat/harness.test.ts:
  → A0 [PASS]: production bundle has no test-hook leaks (19ms)
  → Browser launches; popup opens; manifest read succeeds
  → A1-A13 [FAIL]: NOT YET IMPLEMENTED — Plan 01-11 Task N wires this
  → "UAT harness: 1/14 assertions passed, 13 failed (first failure: A1)"
  → Exit code: 1 (expected — 13 RED stubs intentional)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 09:14:58 +02:00
cb1a729962 feat(01-11): wave-1 — gated test hooks for SW + offscreen, dist/ stays hook-free
Task 2 of Plan 01-11 (Puppeteer UAT harness).

Test hook surface:
- src/test-hooks/types.ts: canonical MokoshTestSurface — handlers
  (onClicked, onStartup, notificationOnClicked), notificationCount,
  lastNotificationOptions<true>, notificationIds, getCurrentStream,
  getSegmentCount. globalThis.__mokoshTest ambient declaration.
- src/test-hooks/sw-hooks.ts: SW-side hook. Monkey-patches addListener
  on chrome.action.onClicked / chrome.runtime.onStartup / chrome
  .notifications.onClicked to capture handler refs while chaining to
  the original. Wraps chrome.notifications.create across all four
  overload shapes (id+options+cb, options+cb, id+options→Promise,
  options→Promise) to increment notificationCount, save
  lastNotificationOptions, push resolved id into notificationIds.
- src/test-hooks/offscreen-hooks.ts: offscreen-side hook. Exports
  setCurrentStream + setSegmentCountGetter; the recorder calls both
  inside startRecording after the mediaStream + segments assignments.
  getCurrentStream getter closes over the cell so the harness reads
  the live MediaStream for displaySurface inspection + 'ended'
  dispatch (Bug B BLOCKER per RESEARCH §7).
- tests/uat/lib/test-hook-contract.d.ts: manual harness-side mirror of
  MokoshTestSurface (decoupled from src/ to keep tests/ import-clean
  per RESEARCH §11 resolution 5; drift risk documented inline).

Production-side wires (gated by __MOKOSH_UAT__ token):
- src/background/index.ts top-of-module: `if (__MOKOSH_UAT__) { await
  import('../test-hooks/sw-hooks'); }`. MUST run before any chrome.*
  addListener call below — top-of-module placement satisfies this.
- src/offscreen/recorder.ts top-of-module: symmetric gated dynamic
  import + module-scoped testHooks reference.
- src/offscreen/recorder.ts inside startRecording (after mediaStream
  assignment): `if (__MOKOSH_UAT__) { testHooks?.setCurrentStream(stream);
  testHooks?.setSegmentCountGetter(() => segments.length); }`
- src/offscreen/recorder.ts inside onUserStoppedSharing (after
  mediaStream = null): `if (__MOKOSH_UAT__) { testHooks?.setCurrentStream(null); }`
  — T-1-11-05 (Repudiation: stale stream ref) mitigation.

Build-time token wiring:
- vite.config.ts: declares `define: { __MOKOSH_UAT__: 'false' }` (prod
  default) + bumps `build.target: 'es2022'` so the top-level await in
  the gated dynamic imports compiles (MDN: Chrome 89 / Edge 89 /
  Firefox 89 / Safari 15 support TLA; MV3 floor Chrome 88 is
  effectively Chrome 89+ in field — comfortably inside the envelope).
- vite.test.config.ts: overrides `define: { __MOKOSH_UAT__: 'true' }`
  so the test bundle has the hooks active.
- vitest.config.ts: declares `define: { __MOKOSH_UAT__: 'false' }` for
  vitest's own source-loading runs. CRITICAL — without this, vitest
  would throw `ReferenceError: __MOKOSH_UAT__ is not defined` when
  loading src/background/index.ts; OR if we'd used `import.meta.env.MODE
  === 'test'` (RESEARCH §6's initial guidance), vitest's default
  MODE='test' would have ACTIVATED the hooks under unit tests +
  clobbered every existing vi.fn() chrome.notifications.create mock.
  The dedicated `__MOKOSH_UAT__` token sidesteps both failure modes
  cleanly — a refinement on RESEARCH §6 documented in the comment
  preambles of all three configs.
- globals.d.ts: declares `__MOKOSH_UAT__: boolean` ambient so
  `npx tsc --noEmit` passes without per-file annotations.
- tsconfig.json: include adds `globals.d.ts`.

Notification options generic refinement:
- chrome.notifications.NotificationOptions is declared with a
  `<true | false>` generic distinguishing "create" (all required —
  true) from "update" (all optional — false). Plan 01-11's production
  code always uses the create shape; types.ts + sw-hooks.ts pin to
  `NotificationOptions<true>` so the harness reads iconUrl etc. as
  definitely-present.

Verification:
- npx tsc --noEmit: exit 0
- npm run build: exit 0
- grep -rln '__mokoshTest\|simulateUserStop\|getSegmentCount\|setCurrentStream\|setSegmentCountGetter' dist/:
  ZERO matches (Tier-1 gate stays GREEN)
- npm run build:test: exit 0; dist-test/ emits separate sw-hooks-*.js
  + offscreen-hooks-*.js chunks (the gated dynamic imports survive
  tree-shaking when __MOKOSH_UAT__ === true)
- grep -rln '__mokoshTest' dist-test/: 2 matches
  (assets/sw-hooks-*.js + assets/offscreen-hooks-*.js)
- SKIP_BUILD=1 npx vitest run: 89/89 GREEN
  (83 baseline + 6 Tier-1 hook-leak surfaces)
- sw-bundle-import.test.ts: GREEN (the gated dynamic import does not
  break production module init — the `if (false)` branch is never
  reachable so the await + import are dead code in dist/)

In-flight bugs auto-fixed (Rule 1 + Rule 3):
- Rule 3: original RESEARCH §6 plan called for `import.meta.env.MODE
  === 'test'` as the gate; switched to `__MOKOSH_UAT__` define-token
  after observing vitest contamination (vitest defaults MODE='test'
  → hooks activated under unit tests → 8 existing tests broke with
  "Cannot read properties of undefined (reading 'calls')" because the
  hook wrapper replaced vi.fn() mocks). Documented in the comment
  preambles of all three configs as a refinement on RESEARCH §6.
- Rule 3: esbuild rejected TLA against the default ES2020 target;
  bumped to es2022 (Chrome 89+ supports TLA per MDN — inside MV3
  envelope). Recorded in vite.config.ts preamble.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 22:46:26 +02:00
b9eeeeb386 feat(01-09): GREEN — Bug B route user-stopped-sharing → IDLE; other codes → ERROR (preserved)
Patches the RECORDING_ERROR onMessage handler in src/background/index.ts
(lines 725-744 pre-patch) with conditional routing on the incoming
`message.error` payload:

  - 'user-stopped-sharing' → setIdleMode() (popup empties; badge OFF;
    isRecording flipped to false). Recovery notification suppressed —
    the operator stopped deliberately, surfacing one would be UX noise.
    The offscreen recorder's onUserStoppedSharing has already cleared
    the buffer (src/offscreen/recorder.ts:457 resetBuffer), so IDLE is
    the correct landing state.

  - all other codes → setErrorMode() + recovery notification, preserving
    the existing operator-facing surface for genuine capture failures
    (codec-unsupported, wrong-display-surface, capture-failed, etc.).

Closes the operator-lockout regression observed in Plan 01-09 Task 5
empirical UAT: after Chrome's "Stop sharing" banner click, the badge
stayed yellow and the popup pinned to SAVE-only, gating
chrome.action.onClicked behind the popup forever. Operator had no
restart path. With IDLE routing, the popup empties and the toolbar
click fires startVideoCapture as designed.

Tests: 83/83 GREEN (was 81; +2 from Tests E+F). tsc clean. Build exit 0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 16:49:39 +02:00
06dee246c9 feat(01-09): GREEN — toolbar onClicked + badge state machine + onStartup notification + SAVE-only popup
Plan 01-09 Task 4 GREEN — flips all 13 Task 3 RED tests to GREEN:

src/background/index.ts:
  • Badge palette + notification id prefix constants (SCREAMING_SNAKE).
  • setBadgeState(state) helper: 3-state machine REC/OFF/ERROR with
    deterministic setBadgeText + setBadgeBackgroundColor + setTitle.
    Each chrome call wrapped in try/catch (defense in depth).
  • setIdleMode / setRecordingMode / setErrorMode helpers — drive the
    setPopup dance: '' in OFF (so onClicked fires), html path in REC/
    ERROR (so popup opens for SAVE).
  • startVideoCapture wires setRecordingMode on success, setErrorMode
    in catch.
  • chrome.action.onClicked.addListener — direct toolbar-to-picker flow
    (no popup needed for start). isRecording guard prevents double-start.
  • chrome.runtime.onStartup.addListener — fires once per browser
    session; creates mokosh-startup- notification inviting recording.
  • chrome.notifications.onClicked.addListener — T-1-09-01 spoofing
    mitigation via 'mokosh-' prefix gate; clears notification + invokes
    startVideoCapture (notification click is a valid activation gesture).
  • RECORDING_ERROR onMessage branch — setErrorMode + creates a
    mokosh-recovery- notification inviting the operator to restart.
  • initialize() calls setIdleMode at SW boot — ensures fresh OFF state
    on every (re-)spawn including Chrome's idle-eviction respawn.
  • All new listener registrations wrapped in try/catch so unit-test
    chrome stubs that don't define action/notifications/onStartup don't
    crash SW load (preserves the 5 pre-existing request-id-protocol +
    1 port-lifecycle-continuous tests as GREEN).

src/popup/index.ts:
  • Removed checkPermissions + requestPermissions functions entirely
    (no more REQUEST_PERMISSIONS round-trip on popup open).
  • popupState defaults isRecording=true, hasPermissions=true under
    SAVE-only charter — the popup ONLY opens when recording is active
    (REC/ERROR setPopup html path), so SAVE button is always enabled.
  • init() calls updateUI() directly (no async permission probe).
  • Empty-state copy updated: 'Откройте запись через иконку расширения'
    (Open recording via the extension icon — points operator back to
    the toolbar for starting a new session).
  • saveArchive() simplified: no permission re-check.

manifest.json:
  • Added 'notifications' to permissions array (preserves all existing).
  • default_popup retained — popup still opens in REC/ERROR modes.

smoke.sh (W-04 5-sub-step update):
  • SHARE_TARGET='Entire screen' (was 'Mokosh Smoke Test').
  • Added 14-line locale-fallback comment block citing Chromium
    generated_resources.grd as authoritative source + 4 known locale
    strings + KEEP_PROFILE=1 fallback path.
  • <title> changed to 'Mokosh Smoke Test — monitor mode' to keep tab
    title distinct from the screen-source string.
  • <ol> instruction updated: picker auto-accepts entire screen, not
    the tab. Body intro paragraph also updated.
  • T+/wall timer overlay (commit 923aaca) preserved — no behavioral
    change to polling/Downloads-snapshot/ffprobe-gate logic.

Tests: 13/13 new GREEN; full suite 18 files / 81 tests / all GREEN.
tsc --noEmit exit 0. npm run build exit 0; dist/manifest.json has
'notifications' permission. Tier-1 SW-bundle-import gate (Layer 1 + 2)
remains GREEN.
2026-05-17 15:46:25 +02:00
de162b4293 feat(01-09): GREEN — displaySurface:'monitor' constraint + post-grant validation
Plan 01-09 Task 2 GREEN — flips Task 1 tests 1, 2, 4 to GREEN:

1. CaptureErrorCode union extended with 'wrong-display-surface'.
2. classifyCaptureError branch matches 'wrong-display-surface' prefix.
3. getDisplayMedia call carries {video:{displaySurface:'monitor',
   cursor:'always'},audio:false} (Plan 01-09 D-15-display-surface +
   Phase 5 cursor:'always' opportunistic lift).
4. Post-grant validation block reads track.getSettings().displaySurface;
   on non-monitor pick: tears down stream, nulls mediaStream, throws
   wrong-display-surface Error which routes through the existing
   classifyCaptureError + RECORDING_ERROR broadcast path.

Type note: lib.dom.d.ts MediaTrackConstraints omits 'cursor' — used
explicit type-widening cast (NOT 'as any') to add the field without
suppressing other type checking.

Tests: 4/4 GREEN; full suite 15 files / 68 tests / GREEN.
tsc --noEmit exit 0. npm run build exit 0.
2026-05-17 15:12:13 +02:00
35db6c2357 feat(01-08): swap mergeVideoSegments -> await remuxSegments at call site
- src/background/index.ts now imports remuxSegments from './webm-remux'
  and awaits it in createArchive instead of synchronously calling the
  retired file-concat mergeVideoSegments.
- mergeVideoSegments function declaration deleted entirely; only a
  retirement comment remains naming Plan 01-08 D-14-remux as the
  superseding decision.
- EmptyVideoBufferError throw paths preserved on (a) zero segments
  AND (b) zero-byte output. Error message free-text changed from
  "merged video blob is zero bytes" to "remuxed video blob is zero
  bytes"; pre-flight grep (W-01 fix from plan checker pass)
  confirmed no downstream consumer matches on the legacy string —
  request-id-protocol.test.ts asserts on error.code ('empty-video-
  buffer'), not the free-text message.
- createArchive remains async (was already declared async); saveArchive
  already awaits createArchive so no upstream signature changes.
- Stale comment in decodeBufferSegments referencing mergeVideoSegments
  updated to reflect the new remux pipeline (Rule 3: keep forward-
  references accurate).
- CONTEXT.md amendment provenance verified intact via 4 grep checks
  (B-01 fix from plan checker, folded from retired Task 6):
  (a) D-14-remux disambiguated marker present  (1 match)
  (b) original D-13 line preserved              (1 match)
  (c) D-17-port-lifecycle amendment intact      (1 match)
  (d) webm-remux.ts replaces citation present   (1 match)
  No CONTEXT.md mutation by this task — verify-only step.
- npm run build exit 0; main SW bundle 374.56 KB (108.44 KB gzipped,
  matches the d13 library survey's ~100 KB estimate for ts-ebml +
  webm-muxer combined).
- Full suite: 13 files / 60 GREEN + 2 RED (webm-playback duration
  assertions waiting on Task 5 fixture regen). tsc exit 0.
2026-05-17 09:27:45 +02:00
41e94d5daa feat(01-08): implement remuxSegments — single-EBML WebM remux via ts-ebml + webm-muxer
Drives all 5 RED tests in tests/background/webm-remux.test.ts to GREEN.

- Parses each VideoSegment via ts-ebml Decoder; tracks current Cluster
  Timestamp; extracts each SimpleBlock's VP9 frame(s) + keyframe flag
  + segment-local timestamp via tools.ebmlBlock.
- Re-emits all frames through a single webm-muxer Muxer<ArrayBufferTarget>
  configured with type:'webm', codec:'V_VP9', and adjusted monotonic
  timestamps (segmentBaseMs + cluster.Timestamp + block.timecode,
  microseconds for the muxer).
- Picks track info (PixelWidth, PixelHeight, optional CodecPrivate)
  from first segment that exposes them; falls back to 1024x768 with
  a logged warning per Task 5's failure-mode (e).
- Defensive: empty input -> empty Blob (Test 5); sort by timestamp
  ascending (mirrors retired mergeVideoSegments order discipline).
- 434 LOC including extensive JSDoc per project style; 8 small named
  helpers, no nested mega-functions.
- Empirically: 3-segment fixture -> 912 frames in 29.954 s,
  1_643_057 bytes (single-EBML); ffprobe duration=29.94s, count_frames=912.
- Logging via new Logger('Remux'); no console.* anywhere; no as any;
  no @ts-ignore.

Full suite: 13 files / 60 GREEN + 2 RED (webm-playback duration assertions
still failing against the stale fixture — Task 4 swaps the call site,
Task 5 regenerates the fixture). tsc exit 0.
2026-05-17 09:26:09 +02:00
ffd383d2a6 feat(option-c-error-surface): createArchive throws on empty video; saveArchive surfaces to popup
Retires the upstream silent-skip defect (bisected to commit 555eb05 —
imported broken from before Phase 1, never on the original 22-defect
audit because it needed a real failure mode to surface). Per
.planning/debug/empty-archive-port-race.md Option C step 4: even with
the architectural port lifecycle now bullet-proof, a hard outer timeout
on the BUFFER fetch (10 s after every retry) must result in an
operator-VISIBLE failure — not a silent video-less archive.

1. **EmptyVideoBufferError** — typed error class with a stable `code`
   field ('empty-video-buffer') matching the offscreen-side
   CaptureErrorCode union vocabulary. Lets saveArchive's catch
   distinguish "no segments" failure from JSZip/manifest failures.

2. **createArchive throws** — when videoBufferResponse.segments.length
   === 0 OR when the merged blob is zero bytes, throw the typed error
   with a detail string for diagnostics. Replaces the silent-skip
   branch that was the bisect-confirmed transport for the H2 class.

3. **saveArchive broadcast** — on EmptyVideoBufferError, emit
   {type:'RECORDING_ERROR', error:'empty-video-buffer'} via
   chrome.runtime.sendMessage. The popup's existing RECORDING_ERROR
   handler surfaces the failure to the operator (same channel as
   codec-unsupported, user-cancelled, etc.). saveArchive still returns
   {success:false, error} so the popup's direct-response path also
   sees the failure (defense-in-depth via two channels).

Status: 52 GREEN / 52 tests passing. All 12 RED tests from the Option C
gate (3 in port-reconnect-race + 4 in port-health-probe + 5 in
request-id-protocol) are now GREEN. Build clean (npm run build exit 0).
Pinning contracts intact:
  - D-12 port-serialization (base64 wire format): GREEN
  - D-13 segment-rotation (3 x 10 s restart-segments ring): GREEN
  - A3 webm-playback (ffmpeg dry-run on fixture): GREEN

tsc --noEmit exit 0; type-safety grep clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 14:46:28 +02:00
6ffa242cb9 feat(option-c-sw): request-id'd BUFFER routing + retry on port replacement + PONG echo
Implements the SW-side architectural refactor per
.planning/debug/empty-archive-port-race.md "Fix Strategy: Option C":

1. **Request-id'd protocol** — getVideoBufferFromOffscreen generates a
   uuid (crypto.randomUUID with Math.random fallback) and sends
   {type:'REQUEST_BUFFER', requestId} on the live videoPort. The
   per-request listener pattern is GONE; replaced by a module-level
   pendingBufferRequests Map<requestId, PendingBufferRequest>. The
   onConnect-level message sink routes BUFFER -> resolve by id.

2. **Stale BUFFER routing** — BUFFER messages without a matching
   requestId in the Map are silently dropped (no cross-talk). BUFFER
   without a valid requestId at all is rejected with a warn (Option C
   protocol requires the id).

3. **Retry on port replacement** — every onConnect (post-bootstrap)
   scans pendingBufferRequests and re-issues REQUEST_BUFFER on the
   fresh port with the SAME requestId. The offscreen posts BUFFER on
   the current keepalivePort (see prior offscreen commit), the sink
   matches by id, and the request resolves. This retires the H2
   silent-drop class architecturally — the BUFFER reaches the SW
   regardless of port-replacement timing.

4. **PING -> PONG echo** — the sink replies to every PING with PONG.
   Closes the offscreen's health-probe loop (it counts missed PONGs
   and reconnects when MAX_MISSED_PONGS exceeded — see prior offscreen
   commit). The PONG post is wrapped in try/catch to absorb the same
   port-closed-mid-response race the offscreen ping path handles.

5. **Outer hard-timeout bumped 2s -> 10s** — the legacy per-port
   BUFFER_FETCH_TIMEOUT_MS = 2000 was too tight to retry across a
   reconnect. The new outer budget covers EVERY retry across port
   replacements; the inner round-trip is still ~100-200 ms.

6. **decodeBufferSegments extracted** — pulled out of the legacy
   inline handler so the new onConnect sink can decode wire segments
   without duplicating the logic. Preserves WR-07 (empty wire segment
   filter) and base64ToBlob defensive catch behaviour. Closes the
   pre-existing implicit-undefined-return path the legacy flatMap
   catch had (tsc happy but semantically ambiguous).

Status: 51 GREEN, 1 RED. The remaining RED (createArchive must throw
on empty video, surfacing to operator) is addressed in the next commit.

Pinning contracts (D-12 port-serialization, D-13 segment-rotation,
A3 webm-playback) untouched. tsc --noEmit exit 0; type-safety grep clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 14:43:12 +02:00
1fb3e978cb feat(option-c-offscreen): port health probe + request-id'd BUFFER + H1 try/catch
Implements the offscreen-side architectural refactor per
.planning/debug/empty-archive-port-race.md "Fix Strategy: Option C":

1. **Retired** the 290_000 ms pre-emptive reconnect setTimeout. Its race
   window between the synchronous .disconnect() and the onDisconnect
   handler running was the bisect-confirmed proximate cause of the H1
   "Attempting to use a disconnected port object" Uncaught Errors.

2. **Added** PONG-based health probe: each ping increments missedPongs;
   if MAX_MISSED_PONGS (3) consecutive PINGs go without echo, reconnect
   via the same clean teardown path the onDisconnect handler uses.
   PONG receipt resets the counter. Liveness-based replacement for the
   time-based pre-emptive rotation.

3. **H1 fix** — wrap PING postMessage in try/catch. The port object can
   transition to disconnected synchronously (SW eviction, port glitch)
   between the interval-callback being queued and it running. The catch
   absorbs the throw and routes through reconnectPort() — no more
   uncaught throws bubble out to the offscreen console.

4. **Request-id'd protocol** — REQUEST_BUFFER carries the SW-generated
   requestId; BUFFER response echoes it. The offscreen now posts on the
   CURRENT keepalivePort (no more portAtRequest stale-port refuse-to-
   post). The SW matches BUFFER → request by id, so port replacement
   mid-encode no longer drops the response — the SW retries on the new
   port and the matching BUFFER routes correctly.

5. **reconnectPort(reason)** — new helper consolidating the
   teardown+disconnect+reconnect dance used by both the missed-PONG
   path and the synchronous-throw path. Idempotent w.r.t. the chained
   onDisconnect callback.

Test updates:
  - H2 now sends REQUEST_BUFFER with a requestId (Option C contract).
  - H1.b refactored to test the externally-disconnected path (since the
    pre-emptive timeout path is gone): port._disconnected=true, fire
    ping, assert no throw + a fresh port appears.
  - Top-level snapshots of timer globals + afterEach restoration so a
    failing test doesn't leak overridden globals into the next test.

Status: 48 GREEN, 4 RED (the remaining RED is all SW-side — addressed
in next commit). All H1 + H1.b + H2 contracts now GREEN. Pinning
contracts (D-12 port-serialization, D-13 segment-rotation, A3 webm-
playback) untouched. tsc --noEmit exit 0; type-safety grep clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 14:37:22 +02:00
c6e8101860 feat(option-c-types): extend PortMessage with requestId + PONG
Pure type-extension step for the Option C architectural refactor of the
offscreen↔SW port lifecycle (.planning/debug/empty-archive-port-race.md).

PortMessage.requestId is optional so PING/PONG keep their no-payload
shape. REQUEST_BUFFER and BUFFER will populate it once the recorder
(offscreen) and getVideoBufferFromOffscreen (SW) are wired up in the
next commits. The narrowing remains structural — every consumer must
still validate `type` before accessing `requestId`.

PONG joins PING as a no-payload liveness signal. The SW echoes PONG on
PING, closing the health-probe loop the offscreen uses to detect a dead
port (replacing the 290 s pre-emptive setTimeout that was the proximate
cause of the H1 race window per the bisect).

No runtime change. 52 tests, 10 RED still RED (waiting for impl).
tsc --noEmit exit 0; type-safety grep clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 14:29:12 +02:00
034155bc4e fix(01-review): sweep #5 surface port-replaced-during-fetch diagnostic on buffer timeout 2026-05-16 11:00:55 +02:00
7c91f526d8 fix(01-review): sweep #2+#3+#4 recorder lifecycle hardening (re-entrance + start throw + dual-track teardown) 2026-05-16 10:59:17 +02:00
08a79a61ac fix(01-review): sweep #1 stopRecording nulls mediaStream first to prevent rotation race 2026-05-16 10:52:59 +02:00
a6e2d09de8 fix(01-review): IN-05 Message<T = unknown> + sweep any[] in RrwebEventsResponse/UserEvent.meta/popup log 2026-05-16 10:51:00 +02:00
b0631a4289 fix(01-review): IN-02 migrate Logger and ContentLogger to unknown[] args 2026-05-16 10:31:49 +02:00
6286957f53 fix(01-review): IN-01 read extensionVersion from chrome.runtime.getManifest() 2026-05-16 10:29:28 +02:00
f8a9c10758 fix(01-review): WR-08 downloadArchive use shared blobToBase64 helper 2026-05-16 10:25:34 +02:00
e9aae09f6d fix(01-review): WR-07 base64ToBlob empty-input shortcut + SW-side empty-segment filter 2026-05-16 10:24:38 +02:00
650c546a6e fix(01-review): WR-01+WR-02 stable capture error codes + pure assertCodecSupported 2026-05-16 09:49:01 +02:00
2e3f5248ce fix(01-review): CR-01+CR-02+CR-03+WR-03+WR-09 critical port + handshake race fixes
What was wrong:
- CR-01 (recorder.ts): encodeAndSendBuffer captured no port identity before
  awaiting Promise.all(blobToBase64). If the port disconnected mid-encode
  and onDisconnect synchronously reconnected (re-assigning keepalivePort
  to a fresh instance), the post-await null-check evaluated false and
  the BUFFER was posted on the NEW port — but the SW's per-request
  onMessage listener was still bound to the OLD port (captured at
  getVideoBufferFromOffscreen line 110). Result: SW timed out after
  2 s, SAVE_ARCHIVE produced an empty-segments zip, data-loss path
  masquerading as a benign timeout.
- CR-02 (background/index.ts): SW's onConnect handler attached
  ONLY onDisconnect — no permanent onMessage sink. PING traffic
  had no listener when getVideoBufferFromOffscreen wasn't running
  (the normal idle state of the port), and field reports note Chrome's
  SW idle-timer reset behaves inconsistently when no listener is
  attached. Risk: PINGs silently dropped, SW evicted ~30 s into
  recording, port torn down, next SAVE_ARCHIVE fails entirely.
- CR-03 (background/index.ts): offscreenReady is a one-shot Promise
  resolved on the FIRST OFFSCREEN_READY message. If the SW is evicted
  while the offscreen document persists, the next SW lifetime creates
  a fresh Promise and waits on it forever — the offscreen never
  re-emits OFFSCREEN_READY. startVideoCapture() hangs at
  `await offscreenReady` until Chrome restarts.
- WR-03 (recorder.ts): `baseTimestamp + idx` (Date.now() + idx) used
  millisecond resolution + array offset. Two REQUEST_BUFFER calls
  within the same millisecond would collide, breaking the sort-by-
  timestamp contract in SW-side mergeVideoSegments.
- WR-09 (recorder.ts): encodeAndSendBuffer always appended the
  unfinalized in-flight segment to the BUFFER. That segment lacks
  the Matroska SegmentSize and Cues that MediaRecorder.stop()
  writes — re-introducing the "File ended prematurely" symptom
  documented in debug session webm-playback-freeze.

What changed:
- recorder.ts encodeAndSendBuffer:
  - Capture `portAtRequest = keepalivePort` BEFORE the encode.
  - After the await, refuse to post if `keepalivePort !== portAtRequest`
    (port was replaced by reconnect). SW already times out cleanly
    after BUFFER_FETCH_TIMEOUT_MS = 2 s; the next SAVE_ARCHIVE
    re-issues REQUEST_BUFFER on the fresh port. Stale data
    NEVER reaches a stranger port.
  - Include the in-flight segment ONLY when finalized.length === 0
    (preserve the SAVE-within-first-10-s UX trade-off documented at
    the original comment) — otherwise drop the unfinalized tail.
  - Replace `baseTimestamp + idx` with module-level monotonic
    `++segmentSeq` counter (zero wall-clock dependency).
  - Switch from Promise.all/map+filter to a sequential for-loop
    because each iteration now mutates the shared `segmentSeq`;
    Promise.all timing would interleave assignments. Throughput
    impact negligible (3 segments × ~50 ms base64 each ≈ 150 ms
    vs ~50 ms parallel — still well under the 2 s SW budget).

- background/index.ts onConnect:
  - Install a permanent `port.onMessage.addListener` that
    explicitly drains PING and silently drops unknown traffic.
    Per-request BUFFER listener still wins because it's attached
    LATER in the listener chain when getVideoBufferFromOffscreen
    fires; this sink only catches the idle PING stream and
    guarantees the SW idle-timer reset is consumed by a real
    handler.

- background/index.ts initialize():
  - When `chrome.offscreen.hasDocument()` returns true on SW init,
    immediately resolve `offscreenReady` AND null
    `offscreenReadyResolve`. The offscreen MUST have completed its
    bootstrap before it was observable via hasDocument(); waiting
    for an OFFSCREEN_READY that will never come is a deadlock.

Why these fixes vs alternatives:
- CR-01: alternatives considered: (a) cancel encoding when port
  disconnects (requires AbortController plumbing into blobToBase64);
  (b) re-route the BUFFER through the new port via a per-port
  request-id correlation. Both add machinery for a case the SW
  already handles correctly (2 s timeout → retry). The capture-
  identity check is the minimum-mechanism fix and matches REVIEW.md
  CR-01 fix guidance exactly.
- CR-02: alternative considered: documenting "rely on kernel-level
  port-message side effect for idle-timer reset" — REJECTED, this
  is what the existing comment did and the field evidence shows
  it's unreliable. Explicit listener is the safe default.
- CR-03: alternative considered: (a) have offscreen re-emit
  OFFSCREEN_READY on every inbound SW message — adds noise to
  the message bus and races with the original-bootstrap-emit.
  Option (b) (resolve-on-hasDocument-true) is simpler, narrower,
  and was explicitly recommended by REVIEW.md.
- WR-03: alternative considered: keeping Date.now() and adding a
  microsecond-resolution offset via performance.now() — fragile
  across SW respawns where performance.now() resets. Module-level
  monotonic counter has zero wall-clock dependency.
- WR-09: alternative considered: forcing a synchronous rotation
  at REQUEST_BUFFER time. Rejected — adds ~50–200 ms latency to
  every save AND races with scheduleRotation()'s timer. The
  "exclude unless empty" trade-off matches REVIEW.md option (a)
  exactly and preserves the documented first-10-s UX path.

Validation evidence:
- npx tsc --noEmit: exit 0 (no type errors).
- npx vitest run --reporter=dot: 30/30 tests pass in 2.67 s
  (8 test files, including port.test.ts which pins the reconnect
  invariant and port-serialization.test.ts which pins the wire format).
- grep "as any\|@ts-ignore" src/offscreen/ src/background/index.ts
  src/shared/: no matches (type-safety gate stays clean).
2026-05-16 09:21:34 +02:00
f81438d6c8 feat(fix-a3): rename TransferredVideoChunk → TransferredVideoSegment
Pure rename pass — zero behavioural change at any call site. The
prior "chunk" naming is a vestige of D-09..D-11's chunk-level
buffer; under D-13 the unit of transfer is a self-contained ~10 s
WebM segment, so the type name now matches the data shape.

Renames propagated atomically:
- src/shared/types.ts
  * TransferredVideoChunk → TransferredVideoSegment
    (also: the `isFirst?: boolean` field is dropped — D-13 segments
    are all implicitly their own header, so the flag is meaningless
    and only existed for the retired ring-buffer's pin semantics)
  * VideoChunk → VideoSegment (drops `isFirst?` for the same reason)
  * PortMessage.chunks? → PortMessage.segments?
  * VideoBufferResponse.chunks → VideoBufferResponse.segments
- src/offscreen/recorder.ts
  * import type rename
  * encodeAndSendBuffer's per-element accumulator + filter type
  * the port.postMessage payload field
- src/background/index.ts
  * import type rename
  * getVideoBufferFromOffscreen reads `(msg as {segments?}).segments`
    (matching the new wire field name)
  * empty-buffer returns `{ segments: [] }`
  * mergeVideoSegments signature takes VideoSegment[]
  * createArchive consumes videoBufferResponse.segments
  * saveArchive log line says "segments"

Verification:
- npx tsc --noEmit clean.
- npx vitest run → 28 passed / 2 failed (the 2 fixture-empirical
  ffmpeg dry-runs; unchanged — they're gated on ./smoke.sh regen).
- npm run build succeeds, all 60 modules transformed.
- grep predicates clean in src/:
  * no addChunk / trimAged / firstChunkSaved / isFirst
  * no TransferredVideoChunk / VideoChunk (old names)
  * 21 occurrences of new names propagated correctly
- Pre-existing port-serialization.test.ts still GREEN: its `isFirst`
  references are inside inline-test-scoped objects (not imports
  from production types), and its tests assert JSON-roundtrip
  behaviour rather than the production type shape.
2026-05-15 21:15:19 +02:00
670daa3fe8 feat(fix-a3): adapt SW receive path to segment semantics
Follow-up to the D-13 activation in src/offscreen/recorder.ts. Each
entry on the BUFFER port message is now a self-contained WebM
segment (not a partial chunk), so the SW-side concat is trivial:
sort by timestamp and Blob-concatenate. The resulting multi-EBML-
header file plays natively in Chrome (SPEC §10 #7 scope).

Changes in src/background/index.ts:
- mergeVideoChunks renamed to mergeVideoSegments; doc comment and
  log lines say "segment" throughout. No behavioural change beyond
  removing the now-stale per-chunk `isFirst` logging.
- getVideoBufferFromOffscreen no longer reads or carries the
  `isFirst` field when decoding wire payload into VideoChunk —
  D-13's segment lifecycle makes the flag meaningless (every
  segment is a fresh recorder boundary, every segment's first
  chunk is implicitly the header). The field stays optional on
  VideoChunk for one more commit; commit 4 sweeps the type
  rename and drops it.
- The single mergeVideoChunks call site in createArchive updated
  to the new name.

Verification:
- npx vitest run → 28 passed / 2 failed (same 2 empirical-ffmpeg
  REDs from webm-playback.test.ts; unchanged from prior commit —
  the fixture is still the stale single-continuous-recorder one).
- npx tsc --noEmit clean.
- src/background/index.ts now has zero references to addChunk /
  trimAged / firstChunkSaved / isFirst.
2026-05-15 21:12:46 +02:00
6a1a034030 feat(fix-a3): activate D-13 restart-segments in src/offscreen/recorder.ts
Replaces the single-continuous-MediaRecorder + age-trim lifecycle
(D-09..D-11, retired) with the restart-segments lifecycle pre-staged
in CONTEXT.md D-13 and RESEARCH.md Pattern 3. Debug session
webm-playback-freeze proved empirically that the prior approach
orphans VP9 P-frame keyframe references when middle chunks are
trimmed — ffmpeg dry-run on last_30sec.webm produced 8 "Error
submitting packet to decoder" lines and the playback froze ~1 s in
Chrome (root-cause-confirmed in the debug session).

Architecture change:
- MediaRecorder is rotated every SEGMENT_DURATION_MS = 10_000 ms on
  the SAME mediaStream (so no new getDisplayMedia user gesture).
- Each segment is started fresh, so the encoder seeds an EBML header
  + initial VP9 keyframe — segment is independently decodable.
- Up to MAX_SEGMENTS = 3 finalized segments are retained (3 × 10 s =
  30 s, matching the legacy operator-facing window).
- MediaRecorder.start() runs without a timeslice — exactly one
  ondataavailable per .stop() yields exactly one Blob per segment.
- onstop → onSegmentStopped finalizes currentChunks, evicts oldest
  if over the cap, and immediately starts the next segment.
- ~50–200 ms recording gap at each rotation boundary is the
  documented trade-off per CONTEXT.md D-13.

API surface delta:
- REMOVED: addChunk, trimAged, getBuffer, firstChunkSaved
  (entire D-09..D-11 ring-buffer module retired)
- ADDED:   getSegments, pushSegmentForTest (test seam),
           MAX_SEGMENTS, SEGMENT_DURATION_MS exports
- KEPT:    assertCodecSupported, resetBuffer (semantics updated to
           clear segments + currentChunks + rotation timer),
           VIDEO_BUFFER_DURATION_MS (now derived as
           MAX_SEGMENTS * SEGMENT_DURATION_MS = 30 s)
- bootstrap(), port lifecycle, OFFSCREEN_READY handshake, T-1-04
  sender-id check — all unchanged.

encodeAndSendBuffer iterates segments + the in-flight currentChunks
(if non-empty) so SAVE_ARCHIVE seconds after START_RECORDING still
returns the partial first segment instead of an empty buffer. Each
segment is base64-encoded per the D-12 wire-format contract.

Verification:
- npx vitest run → 28 passed / 2 failed; the 2 failures are exactly
  the empirical ffmpeg dry-runs in tests/offscreen/webm-playback.test.ts
  which stay RED until the operator regenerates the committed fixture
  via ./smoke.sh (expected and documented).
- tests/offscreen/segment-keyframes.test.ts production-driven RED
  block is now GREEN — getSegments exists and meets the cap contract.
- tests/offscreen/segment-rotation.test.ts (8 tests, added in the
  prior commit) all GREEN.
- npx tsc --noEmit clean.
- Zero new `as any` / `@ts-ignore` introduced.
2026-05-15 21:11:07 +02:00
d5bb948d95 feat(fix-d12): decode chunks from base64 in SW BUFFER receive
- Read incoming port.chunks as TransferredVideoChunk[] (was
  VideoChunk[] — but that was a lie because Blob doesn't survive
  JSON serialization across the port boundary).
- Decode each wire chunk via base64ToBlob(wire.data, wire.type) and
  resolve VideoBufferResponse with the resulting VideoChunk[]. The
  existing mergeVideoChunks downstream sees real Blobs and produces
  a real WebM-prefixed merged blob.
- Defensive per-chunk decode: log + skip individual decode failures
  rather than blowing up the whole fetch. Falls back to
  video/webm;codecs=vp9 if the wire chunk somehow omits the type
  (defense-in-depth — the offscreen always populates it).
- Document the 2 s BUFFER_FETCH_TIMEOUT_MS budget: covers worst-case
  encode + post-message + JSON parse with > 1.5 s of headroom for
  the current 15-chunk × 100 KB sizing.

Refs: debug session d12-blob-port-transfer-fails, D-17 port lifecycle.
2026-05-15 20:18:31 +02:00
283184978f feat(fix-d12): encode chunks to base64 in offscreen REQUEST_BUFFER handler
- Convert each VideoChunk's Blob to a TransferredVideoChunk via
  blobToBase64 before keepalivePort.postMessage. JSON.stringify(blob)
  === "{}" across extension contexts, so the previous direct send of
  VideoChunk[] was silently corrupting binary content on the wire.
- Move the work into encodeAndSendBuffer() to keep onPortMessage
  synchronous-typed (chrome.runtime.Port.onMessage ignores return
  values; the listener stays void-returning, the async work is
  fire-and-forget).
- Defensive per-chunk encode: log + skip individual encoding failures
  rather than crashing the whole BUFFER response. Operators get partial
  video > no video.
- Re-check keepalivePort !== null AFTER the await: the port may have
  disconnected during encoding (~100 ms for 15 chunks of ~100 KB each
  per the d12 sizing estimate).

Refs: debug session d12-blob-port-transfer-fails, D-17 port lifecycle.
2026-05-15 20:16:41 +02:00
d653283bc4 feat(fix-d12): add TransferredVideoChunk wire-format type in src/shared/types.ts
- Add TransferredVideoChunk { data: string (base64); type: string
  (MIME); timestamp: number; isFirst?: boolean } as the
  JSON-serializable shape for chunks traversing the offscreen↔SW
  chrome.runtime.Port boundary.
- Retarget PortMessage.chunks?: TransferredVideoChunk[] (was
  VideoChunk[]). The in-memory VideoChunk type is unchanged — both
  the offscreen ring buffer and the SW-side merge step keep using
  it after decoding the wire payload.
- No behavior change yet; this commit only lands the type. The
  encode/decode call sites land in the next two commits.

Refs: debug session d12-blob-port-transfer-fails.
2026-05-15 20:07:40 +02:00
c0d9166a1d feat(fix-d12): add binary encode/decode helpers in src/shared/binary.ts
- Add blobToBase64 / base64ToBlob in src/shared/binary.ts:
  portable Blob↔base64 round-trip for the chrome.runtime.Port
  wire-format. JSON.stringify(blob) returns "{}" across extension
  contexts, so binary payloads must travel as base64 strings.
- Mirror the GREEN-block helper signatures from
  tests/offscreen/port-serialization.test.ts so the same test pins
  both the standalone helpers and the production wire format.
- Land tests/offscreen/port-serialization.test.ts as the RED+GREEN
  executable contract for the D-12 fix: the RED block reproduces
  the 75-byte "[object Object]" failure mode byte-for-byte; the
  GREEN block pins the base64 wire-format the fix must implement.
- Uses arrayBuffer() + btoa(String.fromCharCode...) rather than
  FileReader: FileReader is browser-only; the chosen approach
  works in both Chrome extension contexts and the Node-based
  vitest environment.

Refs: debug session d12-blob-port-transfer-fails.
2026-05-15 20:06:51 +02:00
6aeeda495c fix(01-06): align ensureOffscreen URL with crxjs emit path
After collapsing vite.config.ts to use rollupOptions.input.offscreen =
'src/offscreen/index.html', crxjs preserves the 'src/' prefix in the
bundled output (Outcome A per RESEARCH.md Pitfall 5 dichotomy):
  dist/src/offscreen/index.html  (NOT dist/offscreen/index.html)

The pre-amendment leftover string 'offscreen/index.html' at
src/background/index.ts:45 would have produced
ERR_FILE_NOT_FOUND in chrome.offscreen.createDocument and broken
Plan 07's manual smoke load. Updated to match the actual emit path.

- npm run build exits 0; 7 dist/assets/*.js bundles produced
- dist/manifest.json permissions: desktopCapture present, tabCapture absent
- tsc --noEmit clean; 9/9 vitest tests still green
- ensureOffscreen URL string now matches dist/src/offscreen/index.html

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 18:11:05 +02:00
5cd1519858 feat(01-05): wire SW-side port host and port-based buffer fetch
Plan 05 Task 2 — make the SW a pure coordinator that talks to the offscreen
via the long-lived 'video-keepalive' port (D-17, RESEARCH.md Pattern 5).

Additions:
- chrome.runtime.onConnect.addListener handler scoped to port name
  'video-keepalive' + T-1-04 mitigation (port.sender?.id check). Stores port
  in module-level videoPort: chrome.runtime.Port | null.
- getVideoBufferFromOffscreen(): port-based REQUEST_BUFFER round-trip with
  a 2s timeout fallback to { chunks: [] }. Replaces the synchronous SW-local
  getVideoBuffer() stub from Task 1.
- offscreenReady Promise + OFFSCREEN_READY onMessage case (RESEARCH.md
  Pattern 4): startVideoCapture awaits this before sending START_RECORDING,
  closing the 'Receiving end does not exist' race window (audit P1 #12).
- onMessage GET_VIDEO_BUFFER + SAVE_ARCHIVE rewritten to fetch the buffer
  via the port instead of the deleted local array.
- onMessage sender.id !== chrome.runtime.id guard at handler top
  (T-1-NEW-05-01 mitigation).
- chrome.runtime.onInstalled now calls indexedDB.deleteDatabase('VideoRecorderDB')
  once to clean up the orphaned database from pre-Phase-01 builds
  (T-1-NEW-05-02 / RESEARCH.md Runtime State Inventory).

Rule 2 deviation (orchestrator-flagged robustness):
- initialize() now calls chrome.offscreen.hasDocument() to detect existing
  offscreen documents across SW respawns and update offscreenCreated
  accordingly (audit P1 #8). Guarded with a typeof check to stay safe under
  partial chrome stubs.

Verified: npx tsc --noEmit clean; npx vitest run 9/9 green (Plan 04
offscreen-side tests stay un-touched); no as any / @ts-ignore.
2026-05-15 18:02:51 +02:00
886376e789 refactor(01-05): delete legacy SW buffer, alarms, IndexedDB, tabCapture paths
Plan 05 Task 1 — finish the SW shrink:
- DELETE videoBuffer: VideoChunk[] module state (buffer lives in offscreen per D-16)
- DELETE setupKeepalive + chrome.alarms registration (D-18; alarms never reset SW idle timer — port does)
- DELETE chrome.tabCapture.getMediaStreamId call (D-01: getDisplayMedia now runs inside offscreen)
- DELETE chrome.permissions.contains/request for tabCapture (broken — desktopCapture is the new manifest entry, but getDisplayMedia needs no runtime perm)
- DELETE comment-only references to removed symbols (so grep gates pass)
- REPLACE 'USER_MEDIA' as any → chrome.offscreen.Reason.DISPLAY_MEDIA (D-02; @types/chrome 0.0.268 exposes it)
- REPLACE justification copy to match RESEARCH.md Example C
- FIX (error as any) → instanceof Error pattern (CLAUDE.md rule)
- FIX chrome.tabs.sendMessage cast: explicit response type instead of 'as any'
- COLLAPSE REQUEST_PERMISSIONS handler: under getDisplayMedia, no runtime perm check is meaningful — just call startVideoCapture() (Rule 1 deviation; old code returned granted=false because tabCapture is no longer in manifest)
- Temporary stub: getVideoBuffer() returns { chunks: [] } — Task 2 deletes this and wires the port-based getVideoBufferFromOffscreen()

Verified: npx tsc --noEmit clean, npx vitest run 9/9 green, no as any / @ts-ignore.
2026-05-15 17:59:53 +02:00
b0f4adcbd4 refactor(01-04): remove stale 'Plan 04 wires this' comments now that it's wired
- Update module header to list port keepalive + OFFSCREEN_READY among
  the module's owned responsibilities (no longer "wired by Plan 04")
- Replace 'Plan 04 owns the ping loop' on PORT_NAME with the actual
  D-17 + Pattern 5 citation
- Replace 'Plan 04 fills the lifecycle' on keepalivePort with its
  D-17 + Pattern 5 role

Pure comment cleanup — no behavior change. All 9 tests still GREEN.
2026-05-15 17:47:32 +02:00
b064a214b2 feat(01-04): wire offscreen port keepalive and OFFSCREEN_READY handshake
- Add PORT_PING_MS (25s) and PORT_RECONNECT_MS (290s) constants
- Replace stub bootstrap with full long-lived port lifecycle:
  - connectPort() registers onMessage/onDisconnect listeners, schedules
    25s PING postMessages and a 290s pre-emptive reconnect (Pitfall 4
    belt-and-braces against Chrome's ~5min port lifetime cap)
  - onDisconnect handler synchronously calls connectPort() again
    (Plan 02 port.test.ts pins this; flips reconnect test to GREEN)
  - REQUEST_BUFFER over the port responds with { type: 'BUFFER',
    chunks: getBuffer() } (Plan 05 SW-side will issue REQUEST_BUFFER
    on export)
- Keep defensive guard on chrome.runtime sub-APIs so pure ring-buffer
  and codec-check tests can import the module without a full chrome stub
- Remove the no-longer-needed 'void keepalivePort' workaround (the
  variable is now used by onPortMessage + connectPort)
- T-1-04 mitigation: explicit message-shape switch in onPortMessage
  (any unknown port message type silently dropped); comment block
  documents the SW-side sender.id check contract for Plan 05

GREEN: all 4 test files in tests/offscreen/ pass (9 tests total —
ring-buffer 4 + codec-check 2 + handshake 1 + port 2).
npx tsc --noEmit exits 0. Zero 'as any' / '@ts-ignore' in recorder.ts.
2026-05-15 17:46:33 +02:00
c5828d38ef feat(01-03): add OffscreenLogger and clean up shared types
- Add PortMessageType and PortMessage interface to src/shared/types.ts
  for the long-lived port (offscreen ↔ SW; D-17 / Plan 04 wires the
  ping loop + REQUEST_BUFFER / BUFFER traffic).
- Remove 'VIDEO_CHUNK' and 'VIDEO_CHUNK_SAVED' from MessageType union
  (per D-19 — chunks no longer travel via chrome.runtime.sendMessage;
  the IndexedDB SW-side plumbing is the audit P0 #2 broken path).
- OffscreenLogger class was already added alongside Task 2 because
  recorder.ts imports it at module top.

Inline SW cleanup (Rule 3 — blocking dependency, plan acceptance gates
on `npx tsc --noEmit` exit 0):
- Remove src/background/index.ts VIDEO_CHUNK + VIDEO_CHUNK_SAVED case
  branches (refs to deleted union members).
- Remove now-unreferenced loadChunkFromIndexedDB / openIndexedDB
  (only reachable from the deleted VIDEO_CHUNK_SAVED branch).
- Remove now-unreferenced addVideoChunkFromBlob / cleanupVideoBuffer
  / firstChunkSaved / VIDEO_BUFFER_DURATION_MS constant (the SW-side
  ring buffer now lives in src/offscreen/recorder.ts per D-16).
- Keep SW-side `videoBuffer: VideoChunk[] = []` as a placeholder; Plan
  04 wires it to fetch from offscreen over the keepalive port. The
  remaining `getVideoBuffer` + `saveArchive` callers continue to
  compile against the empty array until Plan 04 lands.
- Plan 05 owns the broader SW shell cleanup.

Verification (post-commit):
- npx vitest run tests/offscreen/ring-buffer.test.ts tests/offscreen/codec-check.test.ts → 6/6 PASS
- npx tsc --noEmit → exit 0

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 17:37:58 +02:00
fff1aea592 feat(01-03): implement offscreen recorder ring buffer and codec strict-mode
- Add src/offscreen/recorder.ts (214 lines) — Phase 01 source of truth
  owning getDisplayMedia capture, MediaRecorder lifecycle, in-memory ring
  buffer with WebM header retention + 30 s age trim, codec strict-mode
  (D-20), and track.onended cleanup.
- Add src/offscreen/index.html — crxjs-managed bundle entry referencing
  ./recorder.ts.
- Add OffscreenLogger class to src/shared/logger.ts (uses ...args:
  unknown[] for strict-mode hygiene; legacy Logger / ContentLogger keep
  ...args: any[] per project provenance). Bundled into this commit
  because recorder.ts cannot typecheck without the import (Rule 3 —
  blocking dependency).
- Pre-stage D-13 restart-segments fallback as commented skeleton at
  bottom of recorder.ts so Plan 07's fallback path needs no re-plan.
- Defensive bootstrap (typeof chrome guard) so the pure ring-buffer +
  codec tests can import the module without stubbing the full chrome
  surface (Rule 3 — Plan 02 ring-buffer test does not stub chrome).

Flips Plan 02's RED tests to GREEN:
- tests/offscreen/ring-buffer.test.ts — 4 tests passing
- tests/offscreen/codec-check.test.ts — 2 tests passing

Handshake test also passes (single OFFSCREEN_READY emission); port
reconnect test stays RED until Plan 04 wires the reconnect loop.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 17:34:00 +02:00
555eb0543f chore: import broken Phase-1 extension as received
Snapshot of /home/parf/Downloads/manifest.zip as delivered, before any
GSD-driven remediation. Contains a partially-broken first attempt at the
Russian SPEC "Тз расширение фаза1.md" (Phase 1 of operator-session-recorder).

Source layout:
- manifest.json — MV3 declaration with tabCapture/activeTab/downloads/etc.
- src/background/index.ts — service worker (video buffer + archive packaging)
- src/content/index.ts — rrweb + user-event logger
- src/popup/{index.html,index.ts,style.css} — Russian popup UI
- offscreen/{index.html,index.ts} — orphaned offscreen (see audit)
- vite.config.ts — inline plugin emitting a separate live offscreen.js
- generate-icons.js, icons/ — minimal PNG icons
- "Тз расширение фаза1.md" — authoritative Russian SPEC

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 15:16:23 +02:00