maaz519
1cbfddd4c2
Extract a PresencePort seam (async setFocus/clearSocket/isViewing) with two impls: the existing in-memory Map (dev, single instance) and a new RedisPresenceService (prod). MessageModule provides PRESENCE_PORT via a REDIS_URL-gated factory — same pattern as the socket.io Redis adapter — so 'who is viewing what' is shared across replicas and the notification projector's presence gate works at N>1. Gateway + projector inject the port; isViewing is now awaited. Presence spec updated to async (passing). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
16 lines
822 B
TypeScript
16 lines
822 B
TypeScript
/**
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* Presence seam: tracks which thread each socket has in the foreground so the notification
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* projector can suppress push for a thread the recipient is actively viewing. Async so it can be
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* backed by Redis across replicas (prod) or an in-memory Map on a single instance (dev).
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*/
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export interface PresencePort {
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/** Record a socket's foregrounded thread (null when the window is blurred / no thread open). */
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setFocus(socketId: string, userId: string, threadId: string | null): Promise<void>;
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/** Forget everything about a socket (on disconnect). */
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clearSocket(socketId: string): Promise<void>;
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/** True if ANY of the user's sockets currently has this thread in the foreground. */
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isViewing(userId: string, threadId: string): Promise<boolean>;
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}
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export const PRESENCE_PORT = Symbol('PRESENCE_PORT');
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