From 0f2b7a1ce9111ff29acc46f788dbfb874b5ac21a Mon Sep 17 00:00:00 2001
From: RMidhunSuresh <hi@midhun.dev>
Date: Tue, 23 Aug 2022 21:58:35 +0530
Subject: [PATCH] Navigate to UI when sync fails

---
 src/domain/session/SessionViewModel.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/domain/session/SessionViewModel.js b/src/domain/session/SessionViewModel.js
index a67df3a7..3bbcc08a 100644
--- a/src/domain/session/SessionViewModel.js
+++ b/src/domain/session/SessionViewModel.js
@@ -28,6 +28,7 @@ import {CreateRoomViewModel} from "./CreateRoomViewModel.js";
 import {ViewModel} from "../ViewModel";
 import {RoomViewModelObservable} from "./RoomViewModelObservable.js";
 import {RightPanelViewModel} from "./rightpanel/RightPanelViewModel.js";
+import {SyncStatus} from "../../matrix/Sync.js";
 
 export class SessionViewModel extends ViewModel {
     constructor(options) {
@@ -45,6 +46,7 @@ export class SessionViewModel extends ViewModel {
         this._gridViewModel = null;
         this._createRoomViewModel = null;
         this._setupNavigation();
+        this._setupForcedLogoutOnAccessTokenInvalidation();
     }
 
     _setupNavigation() {
@@ -93,6 +95,18 @@ export class SessionViewModel extends ViewModel {
         this._updateRightPanel();
     }
 
+    _setupForcedLogoutOnAccessTokenInvalidation() {
+        this._client.sync.status.subscribe(status => {
+            if (status === SyncStatus.Stopped) {
+                const error = this._client.sync.error;
+                if (error.errcode === "M_UNKNOWN_TOKEN") {
+                    // Access token is no longer valid, so force the user to log out
+                    this.navigation.push("forced-logout", this.id);
+                }
+            }
+        });
+    }
+
     get id() {
         return this._client.sessionId;
     }