chatservice

server/src/services/chatService/broadcast.js

@@ -0,0 +1,20 @@
+// Chat Broadcast Pipeline
+// Purpose: Publishes chat message and typing payloads to event bus while preserving in-memory history.
+// Scope: Encapsulates chat fan-out side effects and recent-history accessors.
+const { publishEvent } = require('../eventBus');
+const { pushHistory, getRecentMessages } = require('./state');
+
+function broadcastMessage(message) {
+  pushHistory(message);
+  publishEvent({ source: 'chat', type: 'chat:message', payload: message });
+}
+
+function broadcastTyping(payload) {
+  publishEvent({ source: 'chat', type: 'chat:typing', payload });
+}
+
+module.exports = {
+  broadcastMessage,
+  broadcastTyping,
+  getRecentMessages,
+};