Server: Implement doSendEvents Function

The doSendEvents function has been added to eventRecipients.ts. This function sends the events array as the response body and clears the event queue after sending. Additionally, the client is removed from the clients map after events are sent.

Fixes: #61

backend/src/eventRecipients.ts

@@ -37,7 +37,13 @@ export function scheduleSend(clientId: ClientId, event: AppEvent) {
     //todo: Enqueue the event for sending.
 }
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-export function doSendEvent(clientId: ClientId) {
-    //todo: Send all the events in the queue to the client, only if the response object is available.
+export function doSendEvents(clientId: ClientId) {
+    const res = clients.get(clientId);
+    const events = eventQueue.get(clientId) || [];
+
+    if (res && events.length > 0) {
+        res.json({ events });
+        eventQueue.set(clientId, []);
+        clients.delete(clientId);
+    }
 }