feat: internal method to check if recording should continue

packages/hms-video-store/src/IHMSActions.ts

@@ -40,6 +40,7 @@ import {
   IHMSSessionStoreActions,
 } from './schema';
 import { HMSRoleChangeRequest } from './selectors';
+import { HMSStats } from './webrtc-stats';
 
 /**
  * The below interface defines our SDK API Surface for taking room related actions.
@@ -587,4 +588,10 @@ export interface IHMSActions<T extends HMSGenericTypes = { sessionStore: Record<
    * Method to get enabled flags and endpoints. Should only be called after joining.
    */
   getDebugInfo(): DebugInfo | undefined;
+
+  /**
+   * @internal
+   * Method to check if received bitrate is 0 for all remote peers or whether the room has whiteboard/quiz running. To be used by beam.
+   */
+  hasActiveElements(hmsStats: HMSStats): boolean;
 }

packages/hms-video-store/src/reactive-store/HMSSDKActions.ts

@@ -92,6 +92,7 @@ import {
   selectVideoTrackByID,
 } from '../selectors';
 import { FindPeerByNameRequestParams } from '../signal/interfaces';
+import { HMSStats } from '../webrtc-stats';
 
 /**
  * This class implements the IHMSActions interface for 100ms SDK. It connects with SDK
@@ -1671,4 +1672,24 @@ export class HMSSDKActions<T extends HMSGenericTypes = { sessionStore: Record<st
   private setState: NamedSetState<HMSStore<T>> = (fn, name) => {
     return this.store.namedSetState(fn, name);
   };
+
+  /**
+   * @internal
+   * This will be used by beam to check if the recording should continue, it will pass __hms.stats
+   * It will poll at a fixed interval and start an exit timer if the method fails twice consecutively
+   * The exit timer is stopped if the method returns true before that
+   * @param hmsStats
+   */
+  hasActiveElements(hmsStats: HMSStats): boolean {
+    const isWhiteboardPresent = Object.keys(this.store.getState().whiteboards).length > 0;
+    const isQuizOrPollPresent = Object.keys(this.store.getState().polls).length > 0;
+    const peerCount = Object.keys(this.store.getState().peers).length > 0;
+    const remoteTracks = hmsStats.getState().remoteTrackStats;
+    return (
+      peerCount &&
+      (isWhiteboardPresent ||
+        isQuizOrPollPresent ||
+        Object.values(remoteTracks).some(track => track && typeof track.bitrate === 'number' && track.bitrate > 0))
+    );
+  }
 }