feat(warehousing): ppoo monitoring added

this will monitor ppoo every 45 seconds as long as someone is on the page.

closes #13

backend/socket.io/roomService.socket.ts

@@ -7,18 +7,33 @@ import {
 	roomFlushTimers,
 	roomHistory,
 } from "./roomCache.socket.js";
-import { roomDefinition } from "./roomDefinitions.socket.js";
-import type { RoomId } from "./types.socket.js";
+import { type RoomId, roomDefinition } from "./roomDefinitions.socket.js";
 
 // get the db data if not exiting already
 const log = createLogger({ module: "socket.io", subModule: "roomService" });
+let ioRef: Server | null = null;
 
+export const registerRoomService = (io: Server) => {
+	ioRef = io;
+};
+
+export const hasRoomMembers = (roomId: string): boolean => {
+	if (!ioRef) return false;
+
+	return (ioRef.sockets.adapter.rooms.get(roomId)?.size ?? 0) > 0;
+};
+
+export const getRoomMemberCount = (roomId: string): number => {
+	if (!ioRef) return 0;
+
+	return ioRef.sockets.adapter.rooms.get(roomId)?.size ?? 0;
+};
 export const preseedRoom = async (roomId: RoomId) => {
 	if (roomHistory.has(roomId)) {
 		return roomHistory.get(roomId);
 	}
 
-	const roomDef = roomDefinition[roomId];
+	const roomDef = roomDefinition[roomId] as any;
 
 	if (!roomDef) {
 		log.error({}, `Room ${roomId} is not defined`);
@@ -32,7 +47,7 @@ export const preseedRoom = async (roomId: RoomId) => {
 };
 
 export const createRoomEmitter = (io: Server) => {
-	const addDataToRoom = <T>(roomId: RoomId, payload: T) => {
+	const addDataToRoom = <T>(roomId: RoomId, payload: T[]) => {
 		if (!roomHistory.has(roomId)) {
 			roomHistory.set(roomId, []);
 		}