Initial commit

lib/server/audit-events.ts

@@ -0,0 +1,43 @@
+/**
+ * Audit Events Broadcasting
+ *
+ * Server-side event emitter for broadcasting audit log entries to connected SSE clients.
+ */
+
+import { EventEmitter } from 'events';
+import type { AuditLogCreateData } from './db';
+
+export interface AuditEventData extends AuditLogCreateData {
+	id: number;
+	timestamp: string;
+}
+
+// Create a singleton event emitter for audit events
+class AuditEventEmitter extends EventEmitter {
+	constructor() {
+		super();
+		// Allow many listeners (one per connected SSE client)
+		this.setMaxListeners(1000);
+	}
+
+	emit(event: 'audit', data: AuditEventData): boolean {
+		return super.emit(event, data);
+	}
+
+	on(event: 'audit', listener: (data: AuditEventData) => void): this {
+		return super.on(event, listener);
+	}
+
+	off(event: 'audit', listener: (data: AuditEventData) => void): this {
+		return super.off(event, listener);
+	}
+}
+
+export const auditEvents = new AuditEventEmitter();
+
+/**
+ * Broadcast a new audit event to all connected clients
+ */
+export function broadcastAuditEvent(data: AuditEventData): void {
+	auditEvents.emit('audit', data);
+}