Add back posthog connection time tracking (#2316)

Signed-off-by: Timo K <toger5@hotmail.de>
Co-authored-by: Robin <robin@robin.town>

src/livekit/useECConnectionState.ts

@@ -27,6 +27,7 @@ import { logger } from "matrix-js-sdk/src/logger";
 import * as Sentry from "@sentry/react";
 
 import { SFUConfig, sfuConfigEquals } from "./openIDSFU";
+import { PosthogAnalytics } from "../analytics/PosthogAnalytics";
 
 declare global {
   interface Window {
@@ -131,6 +132,11 @@ async function connectAndPublish(
   micTrack: LocalTrack | undefined,
   screenshareTracks: MediaStreamTrack[],
 ): Promise<void> {
+  const tracker = PosthogAnalytics.instance.eventCallConnectDuration;
+  // Track call connect duration
+  tracker.cacheConnectStart();
+  livekitRoom.once(RoomEvent.SignalConnected, tracker.cacheWsConnect);
+
   await livekitRoom!.connect(sfuConfig!.url, sfuConfig!.jwt, {
     // Due to stability issues on Firefox we are testing the effect of different
     // timeouts, and allow these values to be set through the console
@@ -138,6 +144,10 @@ async function connectAndPublish(
     websocketTimeout: window.websocketTimeout ?? 45000,
   });
 
+  // remove listener in case the connect promise rejects before `SignalConnected` is emitted.
+  livekitRoom.off(RoomEvent.SignalConnected, tracker.cacheWsConnect);
+  tracker.track({ log: true });
+
   if (micTrack) {
     logger.info(`Publishing precreated mic track`);
     await livekitRoom.localParticipant.publishTrack(micTrack, {