Fix private calls

toju-app/src/app/infrastructure/realtime/streams/remote-screen-share-request-controller.ts

@@ -18,6 +18,7 @@ export class RemoteScreenShareRequestController {
   private remoteScreenShareRequestsEnabled = false;
   private readonly desiredRemoteScreenSharePeers = new Set<string>();
   private readonly activeRemoteScreenSharePeers = new Set<string>();
+  private readonly requestRetryTimers = new Map<string, ReturnType<typeof setTimeout>>();
 
   constructor(
     private readonly dependencies: RemoteScreenShareRequestControllerDependencies
@@ -31,6 +32,7 @@ export class RemoteScreenShareRequestController {
 
   handlePeerDisconnected(peerId: string): void {
     this.activeRemoteScreenSharePeers.delete(peerId);
+    this.clearRequestRetry(peerId);
     this.dependencies.clearScreenShareRequest(peerId);
   }
 
@@ -62,6 +64,7 @@ export class RemoteScreenShareRequestController {
     if (!enabled) {
       this.remoteScreenShareRequestsEnabled = false;
       this.desiredRemoteScreenSharePeers.clear();
+      this.clearAllRequestRetries();
       this.stopRemoteScreenShares([...this.activeRemoteScreenSharePeers]);
       return;
     }
@@ -83,18 +86,20 @@ export class RemoteScreenShareRequestController {
     this.remoteScreenShareRequestsEnabled = false;
     this.desiredRemoteScreenSharePeers.clear();
     this.activeRemoteScreenSharePeers.clear();
+    this.clearAllRequestRetries();
   }
 
-  private requestRemoteScreenShares(peerIds: string[]): void {
+  private requestRemoteScreenShares(peerIds: string[], retryAttempt = 0): void {
     const connectedPeerIds = new Set(this.dependencies.getConnectedPeerIds());
 
     for (const peerId of peerIds) {
-      if (!connectedPeerIds.has(peerId) || this.activeRemoteScreenSharePeers.has(peerId)) {
+      if (!connectedPeerIds.has(peerId)) {
         continue;
       }
 
       this.dependencies.sendToPeer(peerId, { type: P2P_TYPE_SCREEN_SHARE_REQUEST });
       this.activeRemoteScreenSharePeers.add(peerId);
+      this.scheduleRequestRetry(peerId, retryAttempt);
     }
   }
 
@@ -107,7 +112,48 @@ export class RemoteScreenShareRequestController {
       }
 
       this.activeRemoteScreenSharePeers.delete(peerId);
+      this.clearRequestRetry(peerId);
       this.dependencies.clearRemoteScreenShareStream(peerId);
     }
   }
+
+  private scheduleRequestRetry(peerId: string, retryAttempt: number): void {
+    if (!this.remoteScreenShareRequestsEnabled || !this.desiredRemoteScreenSharePeers.has(peerId)) {
+      return;
+    }
+
+    const retryDelays = [
+      300,
+      1_000,
+      2_500
+    ];
+    const delay = retryDelays[retryAttempt];
+
+    if (delay === undefined) {
+      return;
+    }
+
+    this.clearRequestRetry(peerId);
+    this.requestRetryTimers.set(peerId, setTimeout(() => {
+      this.requestRetryTimers.delete(peerId);
+      this.requestRemoteScreenShares([peerId], retryAttempt + 1);
+    }, delay));
+  }
+
+  private clearRequestRetry(peerId: string): void {
+    const timer = this.requestRetryTimers.get(peerId);
+
+    if (timer) {
+      clearTimeout(timer);
+      this.requestRetryTimers.delete(peerId);
+    }
+  }
+
+  private clearAllRequestRetries(): void {
+    for (const timer of this.requestRetryTimers.values()) {
+      clearTimeout(timer);
+    }
+
+    this.requestRetryTimers.clear();
+  }
 }