Files
amethyst/commons
Claude 052fdce655 feat(audio-rooms): expose presences StateFlow on AudioRoomViewModel
Adds the listener-side fan-in API the participant grid + listener
counter consume:

  AudioRoomViewModel.presences: StateFlow<Map<String, RoomPresence>>
  AudioRoomViewModel.onPresenceEvent(MeetingRoomPresenceEvent)
  AudioRoomViewModel.evictStalePresences(olderThanSec: Long)

The platform layer (amethyst, next commit) observes LocalCache for
`kinds=[10312], #a=[roomATag]` and pipes events through onPresenceEvent;
that keeps the data source platform-specific and lets commons stay free
of Android-only LocalCache references. evictStalePresences runs on a
periodic tick driven by the platform layer.

Bug-fix while wiring this: the initial RoomPresence had a custom
pubkey-only equals() (intended to make Set<RoomPresence> dedup
straightforwardly). That broke Map<String, RoomPresence>.equals on a
heartbeat-only update — old.equals(new) returned true even when
handRaised / publishing flipped, so StateFlow suppressed the emission
and the UI never saw the change. Reverted to the data-class
all-fields equals; the Map is keyed by the pubkey String anyway, so
the custom equals never bought us anything. Test
`roomPresenceEqualityIsAllFields` pins the contract so it can't drift
back.

Tests:
  * onPresenceEventPopulatesPresencesMapAndDedupesByPubkey
  * evictStalePresencesDropsOldPeers
2026-04-26 21:47:57 +00:00
..