Automatically sign out when toggling the SSS feature flag. (#3071)

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenCoordinator.swift

@@ -19,6 +19,8 @@ import SwiftUI
 
 enum DeveloperOptionsScreenCoordinatorAction {
     case clearCache
+    /// Logout without a confirmation to avoid losing keys when trying SSS.
+    case forceLogout
 }
 
 final class DeveloperOptionsScreenCoordinator: CoordinatorProtocol {
@@ -42,6 +44,8 @@ final class DeveloperOptionsScreenCoordinator: CoordinatorProtocol {
                 switch action {
                 case .clearCache:
                     actionsSubject.send(.clearCache)
+                case .forceLogout:
+                    actionsSubject.send(.forceLogout)
                 }
             }
             .store(in: &cancellables)

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenModels.swift

@@ -18,6 +18,8 @@ import Foundation
 
 enum DeveloperOptionsScreenViewModelAction {
     case clearCache
+    /// Logout without a confirmation to avoid losing keys when trying SSS.
+    case forceLogout
 }
 
 struct DeveloperOptionsScreenViewState: BindableState {

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenViewModel.swift

@@ -31,6 +31,16 @@ class DeveloperOptionsScreenViewModel: DeveloperOptionsScreenViewModelType, Deve
         let state = DeveloperOptionsScreenViewState(elementCallBaseURL: elementCallBaseURL, bindings: bindings)
         
         super.init(initialViewState: state)
+        
+        context.$viewState
+            .map(\.bindings.simplifiedSlidingSyncEnabled)
+            .removeDuplicates()
+            .dropFirst() // Ignore the initial value received when opening the screen.
+            .sink { [weak self] isEnabled in
+                MXLog.error("Toggled simplifiedSlidingSyncEnabled: \(isEnabled). Signing out.")
+                self?.actionsSubject.send(.forceLogout)
+            }
+            .store(in: &cancellables)
     }
     
     override func process(viewAction: DeveloperOptionsScreenViewAction) {

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -30,7 +30,7 @@ struct DeveloperOptionsScreen: View {
             Section("Sliding Sync") {
                 Toggle(isOn: $context.simplifiedSlidingSyncEnabled) {
                     Text("Simplified Sliding Sync")
-                    Text("Requires app reboot")
+                    Text("When toggled you'll be logged out of the app and will need to log in again.")
                 }
             }