Commit Graph

11 Commits

Author SHA1 Message Date
Claude 5a86cdd4e4 fix(audio-rooms): SubscribeResponse framing matches moq-lite-03
Lite-03's SubscribeResponse on the response side of a Subscribe bidi
is two pieces concatenated:

  type   varint  (0 = Ok, 1 = Drop)
  body   size-prefixed bytes

The type discriminator sits OUTSIDE the body's size prefix. Earlier
drafts wrapped the whole thing in one outer size prefix; Lite-03 split
them. See `rs/moq-lite/src/lite/subscribe.rs::SubscribeResponse::encode`
(the `_` arm, which matches Lite-03+).

Our codec was producing — and reading — the older outer-wrapped form,
so against a Lite-03 relay we mis-parsed the type discriminator (`0`
for Ok) as a "size=0" outer prefix and surfaced a confusing
`MoqCodecException: truncated varint at offset=0 (remaining=0)` from
inside `decodeSubscribeResponse`. The first byte the relay sent was
the type, not a size, and our reader peeled it off as the outer length.

Fix touches three pieces:

* `encodeSubscribeOk` / `encodeSubscribeDrop` emit
  `type + size_prefixed(body)` directly (no outer wrap), via a small
  `prefixWithType` helper.
* `decodeSubscribeResponse` reads `type` then a length-prefixed body,
  decodes the body in its own reader, and asserts the outer payload
  is fully consumed.
* `readSubscribeResponseFromBidi` walks chunks into the buffer until
  both the type varint and the size-prefixed body have arrived, then
  re-emits the contiguous `[type][size][body]` slab so the decoder
  parses it self-contained. Reuses the `EarlyExit` collector pattern
  the publisher-inbound path already uses; avoids `Flow.iterator()`
  which doesn't exist in kotlinx.coroutines.

Tests:
* `MoqLiteCodecTest::subscribe{Ok,Drop}_round_trips` no longer
  `peelSizePrefix` the encoded bytes — the new wire form has no outer
  prefix to strip; the bytes go straight through `decodeSubscribeResponse`.
* `MoqLiteSessionTest::publisher_acks_subscribe_and_pushes_group_data_on_uni_stream`
  also drops `MoqLiteFrameBuffer().readSizePrefixed()` on the ack chunk
  for the same reason.

Verified end-to-end against a bare-metal moq-relay 0.10.25 + moq-auth
(`-DnestsInteropExternal=true`):

* `NostrNestsRoundTripInteropTest::production_speaker_broadcasts_to_production_listener_via_real_relay`
  passes — speaker → listener → 8 frames round-trip cleanly.
* `NostrNestsMultiPeerInteropTest::one_speaker_fans_out_to_two_listeners`
  passes — same speaker reaches both listeners with the full frame
  stream.
* The `listener_subscribed_before_announce_receives_late_frames` and
  `two_speakers_in_same_room_deliver_independently_to_one_listener`
  cases still fail with `subscribe stream FIN before reply` — those
  are different relay-behavior issues (the v1 relay seems to FIN
  subscribes against unannounced broadcasts and against a second
  speaker on the same listener), unrelated to the codec.
2026-04-26 20:55:04 +00:00
Claude 71cf99dc22 feat(audio-rooms): moq-lite speaker side end-to-end (phase 5c-speaker)
Production speaker path now runs on moq-lite, so connectNestsSpeaker
exchanges real moq-lite framing with the nostrnests reference relay.

Transport layer:
  - WebTransportSession.incomingBidiStreams() — peer-initiated bidi
    flow. moq-lite publishers receive Announce + Subscribe bidis from
    the relay (rs/moq-lite/src/lite/publisher.rs:40 uses
    Stream::accept(session)), so the abstraction grew the
    accept-bidi-from-peer surface.
  - WebTransportSession.openUniStream() — locally-opened uni stream
    for group push (rs/moq-lite/src/lite/publisher.rs:338 uses
    session.open_uni()).
  - :quic WtPeerStreamDemux StrippedWtStream now carries optional
    send/finish closures. The demux takes the QuicConnectionDriver
    so wakeups fire after each app-level write on a peer-initiated
    bidi.
  - FakeWebTransport now exposes incomingBidiStreams + openUniStream
    directly; the openPeerUniStream test helper went away (production
    flow covers it).

Session layer:
  - MoqLiteSession.publish(suffix) — claims a broadcast suffix and
    lazily launches a relay→us bidi pump. ControlType=Announce reads
    AnnouncePlease, replies Active(suffix). ControlType=Subscribe reads
    body, replies SubscribeOk, registers the inbound subscription.
  - MoqLitePublisherHandle — startGroup / send / endGroup / close
    semantics. send opens a uni stream per group with DataType=0 +
    GroupHeader and pushes varint(size)+payload frames. close emits
    Announce(Ended) on every active announce bidi, FINs the uni.

Application layer:
  - AudioRoomMoqLiteBroadcaster — sibling of AudioRoomBroadcaster but
    drives MoqLitePublisherHandle (keeps IETF broadcaster intact for
    its unit tests).
  - MoqLiteNestsSpeaker — NestsSpeaker adapter, mirror of
    MoqLiteNestsListener on the publish side.
  - connectNestsSpeaker now opens a MoqLiteSession (no SETUP) and
    returns MoqLiteNestsSpeaker.

Tests:
  - 4 new MoqLiteSessionTest cases:
    publisher_replies_to_announcePlease_with_active_announce,
    publisher_acks_subscribe_and_pushes_group_data_on_uni_stream,
    publisher_send_returns_false_when_no_inbound_subscriber,
    publisher_close_emits_ended_announce.

Verified :commons:compileKotlinJvm + :amethyst:compilePlayDebugKotlin
both still compile against the swap.

Docs (plans + CLAUDE.md) refreshed to reflect speaker-side landing.
2026-04-26 18:01:00 +00:00
Claude 4e136cacf4 feat(audio-rooms): MoqLiteSession listener-side (phase 5c-listener)
Listener-side moq-lite (Lite-03) session that wraps a
WebTransportSession and exposes:

  - announce(prefix) — opens an Announce bidi with
    ControlType=Announce + AnnouncePlease(prefix), surfaces a flow
    of relay Announce updates (Active/Ended)
  - subscribe(broadcast, track, ...) — opens a Subscribe bidi with
    ControlType=Subscribe + body, reads the size-prefixed response,
    returns a MoqLiteSubscribeHandle whose frames flow yields each
    frame the publisher pushes
  - close() — cancels pumps, FINs every active subscribe bidi
    (moq-lite UNSUBSCRIBE is "FIN the bidi"), closes the transport

Group demux: a single inbound-uni-stream pump per session reads the
DataType byte (Group=0) + size-prefixed group header, then routes
each subsequent (size, payload) frame to the matching
subscriptionsBySubscribeId entry's frame channel.

Speaker side stops at the announce/subscribe interface — moq-lite
publisher flows depend on accept_bi() / server-initiated bidi
streams (see clarifying agent summary in plans/2026-04-26-moq-lite-gap.md).
That's a follow-up; the WebTransportSession interface needs an
acceptBidiStream() method first.

FakeWebTransport.openPeerUniStream() — new helper so tests can
inject group data from the peer side without going through the
session's outbound uni stream API.

Tests in MoqLiteSessionTest — runBlocking-based (not runTest) so
real-time channel coordination works without virtual-time
artifacts:
  - subscribe_writes_request_and_returns_handle_on_ok
  - subscribe_throws_on_drop_response
  - announce_streams_relay_updates
  - groups_are_demuxed_by_subscribeId (no cross-talk)
  - unsubscribe_FINs_the_subscribe_bidi
2026-04-26 17:24:17 +00:00
Claude fb47a4cf75 feat(audio-rooms): moq-lite codec primitives + message types (phase 5a/5b)
First two phases of the moq-lite (Lite-03) implementation per
nestsClient/plans/2026-04-26-moq-lite-gap.md. No production wiring
yet — the production helpers still call the IETF MoqSession.

What landed:
  - MoqLitePath — mandatory wire-boundary normalisation (strip
    leading/trailing/duplicate `/`), join, path-component-aware
    stripPrefix. Mirrors rs/moq-lite/src/path.rs semantics.
  - MoqLiteAlpn / MoqLiteControlType / MoqLiteDataType /
    MoqLiteAnnounceStatus / MoqLiteSubscribeResponseType — wire
    enums for ALPN ("moq-lite-03"), per-bidi ControlType varints,
    Group uni-stream type byte, announce status, subscribe
    response type.
  - Message data classes — AnnouncePlease, Announce, Subscribe,
    SubscribeOk, SubscribeDrop, GroupHeader, Probe.
  - MoqLiteCodec — encode/decode for each message, with the
    size-prefix envelope baked in. Handles the off-by-one
    `0 = None, n = Some(n−1)` trick for startGroup/endGroup,
    coerces booleans to 0/1, validates priority fits in u8,
    rejects unknown status/response bytes. Path normalisation
    applied at every encode + decode boundary.
  - MoqLitePathTest, MoqLiteCodecTest — round-trip tests for
    every codec entry point + negative paths (oversized priority,
    invalid ordered byte, unknown status, trailing garbage).

All MoqWriter / MoqReader / MoqCodecException primitives reused
from the IETF MoQ codec — same varint and length-prefix shapes.
2026-04-26 16:46:55 +00:00
Claude f0b27654ba test(audio-rooms) + fix: round-trip test + audit pass
Adds an end-to-end MoQ round-trip test and lands the highest-severity
findings from a 3-agent audit (protocol / ViewModel / Android lifecycle)
of the M5–M7 + Activity work.

Round-trip test (`:nestsClient` MoqRoundTripTest):
- Two MoqSession.client() instances (publisher + subscriber) talk
  through a hand-rolled in-test relay coroutine that mirrors a real
  MoQ relay's wire behavior (forwards CLIENT_SETUP / SERVER_SETUP /
  ANNOUNCE / SUBSCRIBE / SUBSCRIBE_OK / OBJECT_DATAGRAM).
- 100-Opus-frame test exercises the full publisher → wire →
  subscriber path, asserting payload bytes + monotonic group/object
  ids round-trip correctly. Catches any drift between our publisher
  and our own subscriber's wire format.
- Second test verifies SUBSCRIBE_ERROR(TRACK_DOES_NOT_EXIST) flows
  back as MoqProtocolException when the publisher hasn't openTrack'd.

MoQ protocol fixes (CRITICAL audit findings):
- SubscribeDoneStatus constants were inverted: had UNSUBSCRIBED=0x01
  (peer reads as INTERNAL_ERROR) and TRACK_ENDED=0x00 (peer reads as
  UNSUBSCRIBED). Swapped to draft-stable values: UNSUBSCRIBED=0x00,
  TRACK_ENDED=0x03.
- Pending CompletableDeferreds for in-flight SUBSCRIBE / ANNOUNCE on
  session close were `cancel()`-ed, which propagates as
  CancellationException — caller's entire scope cancels instead of
  catching a domain MoqProtocolException. Switched all sites to
  `completeExceptionally(MoqProtocolException("session closed"))`
  including unsubscribe-while-pending-OK.

ViewModel fixes:
- openSubscription race: re-check `activeSubscriptions[pubkey] === slot
  && !closed` AFTER the suspending `subscribeSpeaker` returns; if the
  user removed the speaker mid-flight, fire-and-forget UNSUBSCRIBE
  rather than attaching a leaked SubscribeHandle + AudioRoomPlayer to
  a discarded slot.
- Server-initiated `Closed` listener state now triggers
  `teardown(targetState=Closed)` and resets the auto-retry counter,
  so a transport-died-mid-handshake doesn't leave stale subscriptions
  in the VM map until the Activity finishes.
- Cleanup-scope split: `disconnect()` (user-driven) routes the close
  through `viewModelScope` (still alive); `onCleared()` routes it
  through a process-lived `cleanupScope` (default GlobalScope, tests
  pass backgroundScope) so MoQ control frames (UNSUBSCRIBE,
  UNANNOUNCE, SUBSCRIBE_DONE) actually land before the QUIC
  transport drops, instead of being eaten by the cancelled
  viewModelScope.

Android lifecycle fixes:
- AudioRoomBridge.clear() wired into AccountViewModel.onCleared next
  to the existing CallSessionBridge.clear() — no more cross-account
  AccountViewModel leak after logout/switch.
- registerReceiver flag now gated on Build.VERSION.SDK_INT
  TIRAMISU+ — RECEIVER_NOT_EXPORTED on pre-33 devices collides with
  RECEIVER_VISIBLE_TO_INSTANT_APPS. PendingIntents stay
  package-scoped via setPackage(packageName).
- onUserLeaveHint no longer enters PIP unconditionally: gated on
  ui.connection == Connected AND PackageManager
  FEATURE_PICTURE_IN_PICTURE present, so PIP-from-lobby /
  PIP-on-incompatible-device doesn't leave a frozen full-screen
  card in Recents.
- Replaced the process-wide singleton AudioRoomPipActions toggle
  Boolean with a per-Activity MutableSharedFlow<Unit> so a stale
  emission from a torn-down Activity can't leak into a new one.

ViewModel test was extended with `cleanupScope = backgroundScope`
plumbing so the post-disconnect `listener.close()` assertion remains
observable in the test scheduler.

Verified: spotlessApply clean; :commons:jvmTest (9 tests),
:nestsClient:jvmTest (80 tests including 2 new round-trip), and
:amethyst:compilePlayDebugKotlin all green.

Audit findings deferred to follow-up commits (none ship-blocking):
- Wire layout pinning vs draft-17 vs draft-11 (currently emits a
  draft-11-style OBJECT_DATAGRAM; we advertise draft-17). Resolve
  via the M4 manual interop pass against nostrnests.
- UNANNOUNCE racing inbound SUBSCRIBE; control-pump cancel half-write
  (audit MoQ #5, #6) — small ordering tweaks.
- Two retry coroutines stacking under fast Failed bursts (audit VM #4).
- AudioRoomForegroundService startForeground always-first contract
  (audit Android #8).
2026-04-26 09:05:00 +00:00
Claude 5c32996f93 feat(audio-rooms): M5 MoQ publisher path — ANNOUNCE + inbound SUBSCRIBE + OBJECT emit
Lifts MoqSession from listener-only to bidirectional. A session can now
ANNOUNCE a track namespace, register one TrackPublisher per track name
under it, accept inbound SUBSCRIBEs from the peer, and emit
OBJECT_DATAGRAMs that fan out to every attached subscriber. This is what
the speaker / host path needs in nests — phases M6/M7 layer audio
capture + a NestsSpeaker API on top.

Public API additions:
- `MoqSession.announce(namespace, parameters)` — sends ANNOUNCE, awaits
  ANNOUNCE_OK, returns an `AnnounceHandle`.
- `AnnounceHandle.openTrack(name)` — registers a `TrackPublisher` for a
  track under the announced namespace. Idempotent insert is rejected.
- `TrackPublisher.send(payload)` — encodes one MoQ OBJECT_DATAGRAM and
  emits it to every currently-attached subscriber. Group id is fixed at
  zero per the audio-rooms NIP draft; object ids are monotonic.
- `TrackPublisher.close()` — sends SUBSCRIBE_DONE to attached
  subscribers, removes the track from its parent announce.
- `AnnounceHandle.unannounce()` — sends UNANNOUNCE on the wire, closes
  every registered publisher.
- `ErrorCode.TRACK_DOES_NOT_EXIST` and `SubscribeDoneStatus.{TRACK_ENDED,
  UNSUBSCRIBED}` constants for the SUBSCRIBE_ERROR / SUBSCRIBE_DONE
  values we emit.

Internal additions:
- `pendingAnnounces` keyed by namespace, mirroring the existing
  `pendingSubscribes` pattern.
- `announces` map tracking live publishers per namespace.
- `inboundSubscribers` + `publisherSubscribers` so the control-pump can
  fan an inbound SUBSCRIBE to the right TrackPublisher and so
  TrackPublisher.send can snapshot subscribers without per-OBJECT
  locking.
- Control pump now routes ANNOUNCE_OK / ANNOUNCE_ERROR (publisher-side
  ack) and inbound SUBSCRIBE / UNSUBSCRIBE (we're being asked to send
  OBJECTs, or stop). Unknown-track SUBSCRIBE replies with
  SUBSCRIBE_ERROR(TRACK_DOES_NOT_EXIST) so the peer doesn't hang.
- `close()` propagates session death into every AnnounceHandleImpl /
  TrackPublisherImpl so any in-flight `send` short-circuits cleanly.

All shared-state mutation is funneled through the existing `stateMutex`
(no `synchronized` — that's JVM-only and would break commonMain). The
session-wide `writeMutex` continues to serialize control-stream writes.

Tests (new in MoqSessionTest):
- announce → ANNOUNCE_OK happy path; UNANNOUNCE wire frame on close.
- ANNOUNCE_ERROR surfaces as MoqProtocolException.
- End-to-end: announce + openTrack + peer SUBSCRIBE → SUBSCRIBE_OK +
  three OBJECT_DATAGRAMs round-trip with intact group/object ids.
- send() returns false when no subscribers are attached (no buffering).
- Inbound SUBSCRIBE for unknown track under an announced namespace
  replies SUBSCRIBE_ERROR.

Verified: `:nestsClient:jvmTest` (12 tests, 0 failures) + `:quic:jvmTest`
(green) + `./gradlew spotlessApply` clean.
2026-04-26 03:11:33 +00:00
Claude 2d541c6fd4 feat(quic): Phase A — module foundations
Create the new :quic Gradle module (KMP, api(project(":quartz"))) and migrate
the QUIC varint codec out of :nestsClient where it was incidentally living.
Add the connection-ID, packet-number-space, and UDP socket primitives that
the rest of the QUIC client will build on.

Layer-by-layer plan in docs/plans/2026-04-22-pure-kotlin-quic-webtransport-plan.md.

- New :quic module wired into settings.gradle, with commonMain + jvmAndroid
  source sets mirroring :quartz's structure.
- Varint moves from com.vitorpamplona.nestsclient.moq to com.vitorpamplona.quic;
  MoqBuffer/MoqCodec updated to import the new path.
- ConnectionId enforces the 0..20 byte length range and ships a randomizer
  backed by Quartz's RandomInstance.
- PacketNumberSpaceState tracks per-space outbound allocation + largest-received
  tracking, and implements the RFC 9000 §A.3 truncated-PN decode formula plus
  the §17.1 minimum encode-length picker.
- UdpSocket is an expect class with a connected DatagramChannel actual on
  jvmAndroid using Dispatchers.IO (no Selector — one socket per connection).

All 12 tests pass on jvmTest. RFC 9000 §A.1 varint vectors and §A.3 truncated-PN
vector match bit-for-bit.

https://claude.ai/code/session_01EC1tfXfap8k8GyKvrxkxZx
2026-04-25 17:19:02 +00:00
Claude b62e3dd0ec feat(nestsClient): MoQ ANNOUNCE family + Opus encoder + AudioRecord capture
Phase 4 (codec + audio capture slice). Adds the publisher-side MoQ
control messages and the Opus encode + microphone capture pieces a
speaker needs. The host-grants-speaker UI flow is deferred — that's
multi-screen UX that should be designed before being implemented.

commonMain (nestsclient.moq):
- 5 new MoqMessageType entries with codec round-trip + tests:
  * Announce (0x06): publisher offers a track namespace.
  * AnnounceOk (0x07): subscriber acknowledges.
  * AnnounceError (0x08): subscriber rejects with error code +
    reason phrase.
  * Unannounce (0x09): publisher withdraws a previously-announced
    namespace.
  * SubscribeDone (0x0B): publisher tells the subscriber no more
    objects are coming for this subscription, with stream count and
    reason.

commonMain (nestsclient.audio):
- New `OpusEncoder` interface — symmetric to `OpusDecoder`, one
  instance per outgoing track since Opus state is per-stream.
- New `AudioCapture` interface — `start()`, `readFrame()` returns a
  PCM frame or null when stopped, `stop()` releases the mic.

androidMain (nestsclient.audio):
- `MediaCodecOpusEncoder` — wraps `MediaCodec("audio/opus")` encoder
  variant (API 29+). 48 kHz mono in, 32 kbit/s VBR Opus out, 20 ms
  frames. Drains output queue per encode call.
- `AudioRecordCapture` — wraps `AudioRecord` from
  `MediaRecorder.AudioSource.VOICE_COMMUNICATION` so the platform's
  echo-cancellation + noise-suppression filters apply when available.
  Reads exactly one PCM frame per readFrame() call, retries on
  underrun, throws AudioException(DeviceUnavailable) on permission/
  resource failures.

commonTest:
- `AnnounceCodecTest` — 7 cases covering each message round-trip,
  concatenated decode in sequence, and a guard against accidentally
  reordering MoqMessageType enum codes.

Permission already declared:
- `RECORD_AUDIO` is already in amethyst/AndroidManifest.xml — no
  manifest change needed.

What this does NOT include:
- A publisher loop class (analogous to AudioRoomPlayer for publish
  direction) — can be added when the speak-button wiring lands.
- The host-grants-speaker UI — needs design input.
- STREAM_HEADER_SUBGROUP for stream-based object delivery — datagrams
  cover the listener happy-path; streams add reliability that nests
  may or may not require.

https://claude.ai/code/session_013nVLALALKaHVgHm9u5Cg8D
2026-04-22 07:33:55 +00:00
Claude b091b50fe6 feat(nestsClient): MoQ session pump + subscribe API
Phase 3c-3 of the Clubhouse/nests integration. Promotes MoqSession
from a one-shot SETUP runner to a real concurrent session: the
control-stream and datagram pumps run on a caller-supplied scope
after the handshake, and a public subscribe()/unsubscribe() API
delivers per-track OBJECT_DATAGRAMs as a Flow<MoqObject>.

commonMain (nestsclient.moq):
- MoqSession now takes a `pumpScope: CoroutineScope` so callers can
  bind the pumps to their lifecycle (test backgroundScope, viewmodel
  scope, etc.).
- After setup() succeeds, two background coroutines start:
  * Control-stream pump — buffers chunks across multiple writes,
    decodes complete frames, dispatches SUBSCRIBE_OK / SUBSCRIBE_ERROR
    to the matching CompletableDeferred, drops malformed frames
    without killing the session.
  * Datagram pump — decodes OBJECT_DATAGRAMs and routes each to the
    matching per-track sink keyed by track_alias.
- `subscribe(namespace, trackName, priority, filter)` sends SUBSCRIBE,
  awaits SUBSCRIBE_OK (throws MoqProtocolException on SUBSCRIBE_ERROR
  with the publisher's reason), and returns a SubscribeHandle whose
  `objects` flow emits inbound OBJECT_DATAGRAMs.
- `unsubscribe(subscribeId)` is idempotent; second call is a no-op.
  close() cancels pumps + tears down all in-flight subscribes cleanly.
- Per-track sink uses a bounded Channel with DROP_OLDEST overflow
  rather than MutableSharedFlow, so objects buffered between
  subscribe() returning and the consumer attaching are preserved
  (SharedFlow with replay=0 silently drops pre-subscription emissions).

transport (FakeWebTransport):
- Switched from `consumeAsFlow()` to `receiveAsFlow()` so a `.first()`
  during setup followed by a long-running pump `.collect{}` works on
  the same channel without the first call closing it.

Tests:
- Updated existing setup tests for the new `pumpScope` parameter.
- New `subscribe_completes_on_subscribe_ok_then_delivers_datagrams_in_order`
  end-to-end: client subscribes, raw server peer (no MoqSession to
  avoid pump-vs-test contention) replies SUBSCRIBE_OK + 3 datagrams,
  client's flow yields all three in order with correct payloads.
- `subscribe_throws_MoqProtocolException_when_publisher_replies_with_subscribe_error`.
- `datagrams_for_unknown_track_alias_are_dropped_silently` ensures
  the pump doesn't crash on orphan datagrams and the session stays
  closeable.

This completes the pure-Kotlin MoQ work. Remaining 3.x phases all
touch real audio (MediaCodec Opus, AudioTrack, AudioRecord) or the
real WebTransport handshake (Phase 3b-2 with Kwik).

https://claude.ai/code/session_013nVLALALKaHVgHm9u5Cg8D
2026-04-22 06:58:52 +00:00
Claude d65ab7b616 feat(nestsClient): MoQ SUBSCRIBE family + OBJECT_DATAGRAM codecs
Phase 3c-2 of the Clubhouse/nests integration. Extends the MoQ
control-plane codec with the subscribe lifecycle messages (SUBSCRIBE,
SUBSCRIBE_OK, SUBSCRIBE_ERROR, UNSUBSCRIBE) and adds the
OBJECT_DATAGRAM wire format the listener uses to receive low-latency
Opus audio. Pure codec layer — no session-pump or network changes;
the subscribe/object delivery Flow arrives in Phase 3c-3.

commonMain (nestsclient.moq):
- New message types in `MoqMessageType`: Subscribe (0x03),
  SubscribeOk (0x04), SubscribeError (0x05), Unsubscribe (0x0A).
- New data classes in MoqMessage.kt:
  * `TrackNamespace` — tuple of byte strings, with `of(vararg String)`
    helper for the common UTF-8 case.
  * `SubscribeFilter` enum. Phase 3c-2 supports LatestGroup /
    LatestObject; AbsoluteStart/AbsoluteRange throw at construction
    (they need extra wire fields we'll add when nests needs them).
  * `Subscribe`, `SubscribeOk`, `SubscribeError`, `Unsubscribe` data
    classes. `SubscribeOk` validates contentExists + largest-id
    coupling at construction.
- New codecs in `MoqCodec` (namespace tuple + all four messages).
  Unknown filter codes on the wire are rejected.
- `MoqObject` data class + `MoqObjectDatagram` encode/decode for the
  OBJECT_DATAGRAM wire format (track_alias, group_id, object_id,
  publisher_priority, status, payload).

Tests:
- `SubscribeCodecTest` — round-trips for each message with multi-
  segment namespaces + parameters, SUBSCRIBE_OK with and without
  contentExists, concatenated decode in sequence, unknown-filter
  rejection, construction-time validation.
- `MoqObjectDatagramTest` — Opus-sized payload round-trip, zero-
  length payload with OBJECT_DOES_NOT_EXIST status, 8-byte-varint
  boundary coverage, truncated datagram rejection, out-of-range
  priority rejection.

https://claude.ai/code/session_013nVLALALKaHVgHm9u5Cg8D
2026-04-22 03:26:53 +00:00
Claude 37e24ce4f3 feat(nestsClient): MoQ varint + SETUP handshake codec
Phase 3c-1 of the Clubhouse/nests integration. Lands a MoQ-transport
control-plane codec (draft-ietf-moq-transport) and a session wrapper
that runs the SETUP handshake over any WebTransportSession. Purely
commonMain + fully tested end-to-end against FakeWebTransport — no
network or Kwik dependency required.

commonMain (nestsclient.moq):
- `Varint` — QUIC variable-length integer codec per RFC 9000 §16.
  Encode/decode/size, with typed truncation handling (decode returns
  null so callers can buffer more and retry).
- `MoqWriter` / `MoqReader` — append-only byte writer + bounds-checked
  reader used by the message codec.
- `MoqCodecException` — typed error for malformed frames.
- `MoqMessage` sealed class + `MoqMessageType` enum + `SetupParameter`.
  Phase 3c-1 covers just `ClientSetup` / `ServerSetup` (message types
  0x40 / 0x41).
- `MoqCodec.encode/decode` — wraps payload with `type (varint) +
  length (varint)`. Rejects unknown types and trailing bytes inside a
  declared payload window.
- `MoqSession.client/server` — attaches to a WebTransportSession and
  runs the CLIENT_SETUP / SERVER_SETUP handshake with version
  negotiation + configurable timeout.
- `MoqVersion` constants for draft-11 and draft-17.

Tests:
- `VarintTest` — all four RFC 9000 §A.1 sample vectors (1/2/4/8 byte),
  boundary round-trips, negative/overflow rejection, short-buffer
  returns null, bytesConsumed accuracy.
- `MoqCodecTest` — CLIENT_SETUP / SERVER_SETUP round-trip (empty and
  multi-param), multi-version negotiation, exact wire layout for
  ServerSetup(1L), truncated-frame returns null, concatenated frames
  decode with offset, unknown type rejected, trailing bytes rejected,
  zero-length parameter values allowed.
- `MoqSessionTest` — full SETUP exchange over FakeWebTransport (both
  sides happy path, client falling back to older version, server
  rejecting when no version overlap + client timing out cleanly).

SUBSCRIBE / ANNOUNCE / OBJECT_STREAM / OBJECT_DATAGRAM land in
Phase 3c-2 on top of the same MoqSession.

https://claude.ai/code/session_013nVLALALKaHVgHm9u5Cg8D
2026-04-22 03:21:15 +00:00