#1899, #1900, #1901 - Implement chat backup setting screens

ElementX/Sources/Screens/AnalyticsPromptScreen/View/AnalyticsPromptScreen.swift

@@ -42,7 +42,7 @@ struct AnalyticsPromptScreen: View {
     
     private var header: some View {
         VStack(spacing: 8) {
-            AuthenticationIconImage(image: Image(systemName: "chart.bar"))
+            HeroImage(image: Image(systemName: "chart.bar"))
                 .symbolVariant(.fill)
                 .padding(.bottom, 8)
             

ElementX/Sources/Screens/AppLock/AppLockScreen/View/AppLockScreen.swift

@@ -25,7 +25,7 @@ struct AppLockScreen: View {
     var body: some View {
         FullscreenDialog {
             VStack(spacing: 8) {
-                AuthenticationIconImage(image: Image(systemSymbol: .lock))
+                HeroImage(image: Image(systemSymbol: .lock))
                     .symbolVariant(.fill)
                     .padding(.bottom, 8)
                 

ElementX/Sources/Screens/Authentication/AuthenticationIconImage.swift

@@ -1,51 +0,0 @@
-//
-// Copyright 2022 New Vector Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-import SwiftUI
-
-/// An image that is styled for use as the screen icon in the onboarding flow.
-struct AuthenticationIconImage: View {
-    /// The icon that is shown.
-    let image: Image
-    /// The amount of padding between the icon and the borders. Defaults to 16.
-    var insets: CGFloat = 16
-    
-    var body: some View {
-        image
-            .resizable()
-            .renderingMode(.template)
-            .foregroundColor(.compound.iconSecondary)
-            .aspectRatio(contentMode: .fit)
-            .accessibilityHidden(true)
-            .padding(insets)
-            .frame(width: 70, height: 70)
-            .background {
-                RoundedRectangle(cornerRadius: 14)
-                    .fill(Color.compound.bgSubtleSecondary)
-            }
-    }
-}
-
-// MARK: - Previews
-
-struct AuthenticationIconImage_Previews: PreviewProvider, TestablePreview {
-    static var previews: some View {
-        HStack(spacing: 20) {
-            AuthenticationIconImage(image: Image(asset: Asset.Images.serverSelectionIcon), insets: 19)
-            AuthenticationIconImage(image: Image(systemName: "hourglass"))
-        }
-    }
-}

ElementX/Sources/Screens/Authentication/LoginScreen/View/LoginScreen.swift

@@ -52,7 +52,7 @@ struct LoginScreen: View {
     /// The header containing the title and icon.
     var header: some View {
         VStack(spacing: 8) {
-            AuthenticationIconImage(image: Image(systemName: "lock.fill"))
+            HeroImage(image: Image(systemName: "lock.fill"))
                 .padding(.bottom, 8)
             
             Text(L10n.screenLoginTitleWithHomeserver(context.viewState.homeserver.address))

ElementX/Sources/Screens/Authentication/ServerConfirmationScreen/View/ServerConfirmationScreen.swift

@@ -35,7 +35,7 @@ struct ServerConfirmationScreen: View {
     /// The main content of the view to be shown in a scroll view.
     var header: some View {
         VStack(spacing: 8) {
-            AuthenticationIconImage(image: Image(systemName: "person.crop.circle.fill"))
+            HeroImage(image: Image(systemName: "person.crop.circle.fill"))
                 .padding(.bottom, 8)
             
             Text(context.viewState.title)

ElementX/Sources/Screens/Authentication/ServerSelectionScreen/View/ServerSelectionScreen.swift

@@ -40,7 +40,7 @@ struct ServerSelectionScreen: View {
     /// The title, message and icon at the top of the screen.
     var header: some View {
         VStack(spacing: 8) {
-            AuthenticationIconImage(image: Image(asset: Asset.Images.serverSelectionIcon), insets: 19)
+            HeroImage(image: Image(asset: Asset.Images.serverSelectionIcon), insets: 19)
                 .padding(.bottom, 8)
             
             Text(L10n.screenChangeServerTitle)

ElementX/Sources/Screens/HomeScreen/HomeScreenModels.swift

@@ -71,6 +71,8 @@ struct HomeScreenViewState: BindableState {
     var userDisplayName: String?
     var userAvatarURL: URL?
     var showSessionVerificationBanner = false
+    var showUserMenuBadge = false
+    var showSettingsMenuOptionBadge = false
     var rooms: [HomeScreenRoom] = []
     var roomListMode: HomeScreenRoomListMode = .skeletons
     

ElementX/Sources/Screens/HomeScreen/HomeScreenViewModel.swift

@@ -53,7 +53,7 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
         roomSummaryProvider = userSession.clientProxy.roomSummaryProvider
         inviteSummaryProvider = userSession.clientProxy.inviteSummaryProvider
         
-        super.init(initialViewState: HomeScreenViewState(userID: userSession.userID),
+        super.init(initialViewState: .init(userID: userSession.userID),
                    imageProvider: userSession.mediaProvider)
         
         userSession.callbacks
@@ -80,6 +80,19 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             .weakAssign(to: \.state.userDisplayName, on: self)
             .store(in: &cancellables)
         
+        userSession.clientProxy.secureBackupController.recoveryKeyState
+            .receive(on: DispatchQueue.main)
+            .map { state in
+                state == .unknown || state == .disabled
+            }
+            .sink { [weak self] requiresSecureBackupSetup in
+                guard let self else { return }
+                
+                state.showUserMenuBadge = requiresSecureBackupSetup && appSettings.chatBackupEnabled
+                state.showSettingsMenuOptionBadge = requiresSecureBackupSetup && appSettings.chatBackupEnabled
+            }
+            .store(in: &cancellables)
+        
         selectedRoomPublisher
             .weakAssign(to: \.state.selectedRoomID, on: self)
             .store(in: &cancellables)

ElementX/Sources/Screens/HomeScreen/View/HomeScreenUserMenuButton.swift

@@ -18,6 +18,7 @@ import SwiftUI
 
 struct HomeScreenUserMenuButton: View {
     @State private var showingLogoutConfirmation = false
+    @Environment(\.colorScheme) var colorScheme
     
     @ObservedObject var context: HomeScreenViewModel.Context
     
@@ -27,7 +28,11 @@ struct HomeScreenUserMenuButton: View {
                 Button {
                     context.send(viewAction: .userMenu(action: .settings))
                 } label: {
-                    Label(L10n.commonSettings, systemImage: "gearshape")
+                    Label {
+                        Text(L10n.commonSettings)
+                    } icon: {
+                        settingsIconImage
+                    }
                 }
                 .accessibilityIdentifier(A11yIdentifiers.homeScreen.settings)
             }
@@ -55,6 +60,8 @@ struct HomeScreenUserMenuButton: View {
                                 avatarSize: .user(on: .home),
                                 imageProvider: context.imageProvider)
                 .accessibilityIdentifier(A11yIdentifiers.homeScreen.userAvatar)
+                .overlayBadge(10, isBadged: context.viewState.showUserMenuBadge)
+                .compositingGroup()
         }
         .alert(L10n.screenSignoutConfirmationDialogTitle,
                isPresented: $showingLogoutConfirmation) {
@@ -67,4 +74,24 @@ struct HomeScreenUserMenuButton: View {
         }
         .accessibilityLabel(L10n.a11yUserMenu)
     }
+    
+    // MARK: - Private
+        
+    /// Menu doesn't render composed views. Trick it into showing a badge.
+    private var settingsIconImage: Image? {
+        let settingsIcon = Image(systemSymbol: .gearshape)
+            .resizable()
+            .frame(width: 100, height: 100)
+            .overlayBadge(40, isBadged: context.viewState.showSettingsMenuOptionBadge)
+            .colorScheme(colorScheme)
+            .padding()
+        
+        let renderer = ImageRenderer(content: settingsIcon)
+        
+        guard let image = renderer.uiImage else {
+            return nil
+        }
+        
+        return Image(uiImage: image)
+    }
 }

ElementX/Sources/Screens/RoomDetailsEditScreen/RoomDetailsEditScreenViewModel.swift

@@ -88,7 +88,7 @@ class RoomDetailsEditScreenViewModel: RoomDetailsEditScreenViewModelType, RoomDe
             case .success(.image):
                 state.localMedia = try? mediaResult.get()
             case .failure, .success:
-                userIndicatorController?.alertInfo = .init(id: .init(), title: L10n.commonError, message: L10n.errorUnknown)
+                userIndicatorController?.alertInfo = .init(id: .init())
             }
         }
     }

ElementX/Sources/Screens/SecureBackup/SecureBackupKeyBackupScreen/SecureBackupKeyBackupScreenCoordinator.swift

@@ -0,0 +1,62 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+struct SecureBackupKeyBackupScreenCoordinatorParameters {
+    let secureBackupController: SecureBackupControllerProtocol
+    weak var userIndicatorController: UserIndicatorControllerProtocol?
+}
+
+enum SecureBackupKeyBackupScreenCoordinatorAction {
+    case done
+}
+
+final class SecureBackupKeyBackupScreenCoordinator: CoordinatorProtocol {
+    private let parameters: SecureBackupKeyBackupScreenCoordinatorParameters
+    private var viewModel: SecureBackupKeyBackupScreenViewModelProtocol
+    private let actionsSubject: PassthroughSubject<SecureBackupKeyBackupScreenCoordinatorAction, Never> = .init()
+    private var cancellables = Set<AnyCancellable>()
+    
+    var actions: AnyPublisher<SecureBackupKeyBackupScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+    
+    init(parameters: SecureBackupKeyBackupScreenCoordinatorParameters) {
+        self.parameters = parameters
+        
+        viewModel = SecureBackupKeyBackupScreenViewModel(secureBackupController: parameters.secureBackupController,
+                                                         userIndicatorController: parameters.userIndicatorController)
+    }
+    
+    func start() {
+        viewModel.actions.sink { [weak self] action in
+            MXLog.info("Coordinator: received view model action: \(action)")
+            
+            guard let self else { return }
+            switch action {
+            case .done:
+                self.actionsSubject.send(.done)
+            }
+        }
+        .store(in: &cancellables)
+    }
+        
+    func toPresentable() -> AnyView {
+        AnyView(SecureBackupKeyBackupScreen(context: viewModel.context))
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupKeyBackupScreen/SecureBackupKeyBackupScreenModels.swift

@@ -0,0 +1,41 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+enum SecureBackupKeyBackupScreenViewModelAction {
+    case done
+}
+
+enum SecureBackupKeyBackupScreenViewMode {
+    case disableBackup
+}
+
+struct SecureBackupKeyBackupScreenViewState: BindableState {
+    let mode: SecureBackupKeyBackupScreenViewMode
+    var bindings = SecureBackupKeyBackupScreenViewStateBindings()
+}
+
+struct SecureBackupKeyBackupScreenViewStateBindings {
+    var alertInfo: AlertInfo<UUID>?
+}
+
+var alertInfo: AlertInfo<UUID>?
+
+enum SecureBackupKeyBackupScreenViewAction {
+    case cancel
+    case toggleBackup
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupKeyBackupScreen/SecureBackupKeyBackupScreenViewModel.swift

@@ -0,0 +1,107 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias SecureBackupKeyBackupScreenViewModelType = StateStoreViewModel<SecureBackupKeyBackupScreenViewState, SecureBackupKeyBackupScreenViewAction>
+
+class SecureBackupKeyBackupScreenViewModel: SecureBackupKeyBackupScreenViewModelType, SecureBackupKeyBackupScreenViewModelProtocol {
+    private let secureBackupController: SecureBackupControllerProtocol
+    
+    private var actionsSubject: PassthroughSubject<SecureBackupKeyBackupScreenViewModelAction, Never> = .init()
+    var actions: AnyPublisher<SecureBackupKeyBackupScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(secureBackupController: SecureBackupControllerProtocol, userIndicatorController: UserIndicatorControllerProtocol?) {
+        self.secureBackupController = secureBackupController
+        
+        super.init(initialViewState: .init(mode: secureBackupController.keyBackupState.value.viewMode))
+        
+        secureBackupController.keyBackupState
+            .receive(on: DispatchQueue.main)
+            .sink { [weak userIndicatorController] state in
+                let loadingIndicatorIdentifier = "SecureBackupKeyBackupScreenLoading"
+                switch state {
+                case .disabling, .enabling, .unknown:
+                    userIndicatorController?.submitIndicator(.init(id: loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading, persistent: true))
+                default:
+                    userIndicatorController?.retractIndicatorWithId(loadingIndicatorIdentifier)
+                }
+            }
+            .store(in: &cancellables)
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: SecureBackupKeyBackupScreenViewAction) {
+        MXLog.info("View model: received view action: \(viewAction)")
+        
+        switch viewAction {
+        case .cancel:
+            actionsSubject.send(.done)
+        case .toggleBackup:
+            guard secureBackupController.keyBackupState.value == .enabled else {
+                fatalError("Tried disabling backup when not enabled")
+            }
+            
+            state.bindings.alertInfo = .init(id: .init(),
+                                             title: L10n.screenKeyBackupDisableConfirmationTitle,
+                                             message: L10n.screenKeyBackupDisableConfirmationDescription,
+                                             primaryButton: .init(title: L10n.screenKeyBackupDisableConfirmationActionTurnOff, role: .destructive) { [weak self] in
+                                                 self?.disableBackup()
+                                             },
+                                             secondaryButton: .init(title: L10n.actionCancel, role: .cancel, action: nil))
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func enableBackup() {
+        Task {
+            switch await secureBackupController.enableBackup() {
+            case .success:
+                actionsSubject.send(.done)
+            case .failure(let error):
+                MXLog.error("Failed enabling key backup with error: \(error)")
+                state.bindings.alertInfo = .init(id: .init())
+            }
+        }
+    }
+    
+    private func disableBackup() {
+        Task {
+            switch await secureBackupController.disableBackup() {
+            case .success:
+                actionsSubject.send(.done)
+            case .failure(let error):
+                MXLog.error("Failed disabling key backup with error: \(error)")
+                state.bindings.alertInfo = .init(id: .init())
+            }
+        }
+    }
+}
+
+extension SecureBackupKeyBackupState {
+    var viewMode: SecureBackupKeyBackupScreenViewMode {
+        guard self == .enabled else {
+            fatalError("Invalid key backup state")
+        }
+        
+        return .disableBackup
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupKeyBackupScreen/SecureBackupKeyBackupScreenViewModelProtocol.swift

@@ -0,0 +1,23 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+
+@MainActor
+protocol SecureBackupKeyBackupScreenViewModelProtocol {
+    var actions: AnyPublisher<SecureBackupKeyBackupScreenViewModelAction, Never> { get }
+    var context: SecureBackupKeyBackupScreenViewModelType.Context { get }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupKeyBackupScreen/View/SecureBackupKeyBackupScreen.swift

@@ -0,0 +1,117 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import Compound
+import SwiftUI
+
+struct SecureBackupKeyBackupScreen: View {
+    @ObservedObject var context: SecureBackupKeyBackupScreenViewModel.Context
+    
+    @ScaledMetric private var iconSize = 70
+    
+    var body: some View {
+        mainContent
+            .padding()
+            .interactiveDismissDisabled()
+            .toolbar { toolbar }
+            .background(Color.compound.bgCanvasDefault.ignoresSafeArea())
+            .alert(item: $context.alertInfo)
+    }
+    
+    @ViewBuilder
+    private var mainContent: some View {
+        switch context.viewState.mode {
+        case .disableBackup:
+            disableBackupSection
+        }
+    }
+        
+    private var disableBackupSection: some View {
+        VStack(spacing: 16) {
+            HeroImage(image: Image(asset: Asset.Images.secureBackupOff))
+            
+            Text(L10n.screenKeyBackupDisableTitle)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.headingMDBold)
+                .multilineTextAlignment(.center)
+            
+            Text(L10n.screenKeyBackupDisableDescription)
+                .foregroundColor(.compound.textSecondary)
+                .font(.compound.bodyMD)
+                .multilineTextAlignment(.center)
+            
+            VStack(alignment: .leading) {
+                Label {
+                    Text(L10n.screenKeyBackupDisableDescriptionPoint1)
+                        .foregroundColor(.compound.textSecondary)
+                        .font(.compound.bodyMD)
+                } icon: {
+                    CompoundIcon(\.close)
+                        .foregroundColor(.compound.iconCriticalPrimary)
+                }
+                
+                Label {
+                    Text(L10n.screenKeyBackupDisableDescriptionPoint2(InfoPlistReader.main.bundleDisplayName))
+                        .foregroundColor(.compound.textSecondary)
+                        .font(.compound.bodyMD)
+                } icon: {
+                    CompoundIcon(\.close)
+                        .foregroundColor(.compound.iconCriticalPrimary)
+                }
+            }
+            
+            Spacer()
+            
+            Button(role: .destructive) {
+                context.send(viewAction: .toggleBackup)
+            } label: {
+                Text(L10n.screenChatBackupKeyBackupActionDisable)
+            }
+            .buttonStyle(.compound(.primary))
+        }
+    }
+    
+    @ToolbarContentBuilder
+    private var toolbar: some ToolbarContent {
+        ToolbarItem(placement: .cancellationAction) {
+            Button(L10n.actionCancel) {
+                context.send(viewAction: .cancel)
+            }
+        }
+    }
+}
+
+// MARK: - Previews
+
+struct SecureBackupKeyBackupScreen_Previews: PreviewProvider, TestablePreview {
+    static let setupViewModel = viewModel(keyBackupState: .enabled)
+    
+    static var previews: some View {
+        NavigationStack {
+            SecureBackupKeyBackupScreen(context: setupViewModel.context)
+        }
+        .previewDisplayName("Set up")
+    }
+    
+    static func viewModel(keyBackupState: SecureBackupKeyBackupState) -> SecureBackupKeyBackupScreenViewModelType {
+        let backupController = SecureBackupControllerMock()
+        backupController.underlyingKeyBackupState = CurrentValueSubject<SecureBackupKeyBackupState, Never>(keyBackupState).asCurrentValuePublisher()
+        
+        return SecureBackupKeyBackupScreenViewModel(secureBackupController: backupController,
+                                                    userIndicatorController: nil)
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupRecoveryKeyScreen/SecureBackupRecoveryKeyScreenCoordinator.swift

@@ -0,0 +1,74 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+struct SecureBackupRecoveryKeyScreenCoordinatorParameters {
+    let secureBackupController: SecureBackupControllerProtocol
+    weak var userIndicatorController: UserIndicatorControllerProtocol?
+}
+
+enum SecureBackupRecoveryKeyScreenCoordinatorAction {
+    case cancel
+    case recoverySetUp
+    case recoveryChanged
+    case recoveryFixed
+}
+
+final class SecureBackupRecoveryKeyScreenCoordinator: CoordinatorProtocol {
+    private let parameters: SecureBackupRecoveryKeyScreenCoordinatorParameters
+    private var viewModel: SecureBackupRecoveryKeyScreenViewModelProtocol
+    private let actionsSubject: PassthroughSubject<SecureBackupRecoveryKeyScreenCoordinatorAction, Never> = .init()
+    private var cancellables = Set<AnyCancellable>()
+    
+    var actions: AnyPublisher<SecureBackupRecoveryKeyScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+    
+    init(parameters: SecureBackupRecoveryKeyScreenCoordinatorParameters) {
+        self.parameters = parameters
+        
+        viewModel = SecureBackupRecoveryKeyScreenViewModel(secureBackupController: parameters.secureBackupController,
+                                                           userIndicatorController: parameters.userIndicatorController)
+    }
+    
+    func start() {
+        viewModel.actions.sink { [weak self] action in
+            MXLog.info("Coordinator: received view model action: \(action)")
+            
+            guard let self else { return }
+            switch action {
+            case .cancel:
+                self.actionsSubject.send(.cancel)
+            case .done(let mode):
+                switch mode {
+                case .setupRecovery:
+                    self.actionsSubject.send(.recoverySetUp)
+                case .changeRecovery:
+                    self.actionsSubject.send(.recoveryChanged)
+                case .fixRecovery:
+                    self.actionsSubject.send(.recoveryFixed)
+                }
+            }
+        }
+        .store(in: &cancellables)
+    }
+    
+    func toPresentable() -> AnyView {
+        AnyView(SecureBackupRecoveryKeyScreen(context: viewModel.context))
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupRecoveryKeyScreen/SecureBackupRecoveryKeyScreenModels.swift

@@ -0,0 +1,84 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+enum SecureBackupRecoveryKeyScreenViewModelAction {
+    case done(mode: SecureBackupRecoveryKeyScreenViewMode)
+    case cancel
+}
+
+enum SecureBackupRecoveryKeyScreenViewMode {
+    case setupRecovery
+    case changeRecovery
+    case fixRecovery
+}
+
+struct SecureBackupRecoveryKeyScreenViewState: BindableState {
+    let mode: SecureBackupRecoveryKeyScreenViewMode
+    
+    var recoveryKey: String?
+    var doneButtonEnabled = false
+    
+    var bindings: SecureBackupRecoveryKeyScreenViewBindings
+    
+    var title: String {
+        switch mode {
+        case .setupRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeySetupTitle : L10n.screenRecoveryKeySaveTitle
+        case .changeRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeyChangeTitle : L10n.screenRecoveryKeySaveTitle
+        case .fixRecovery:
+            return L10n.screenRecoveryKeyConfirmTitle
+        }
+    }
+    
+    var subtitle: String {
+        switch mode {
+        case .setupRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeySetupDescription : L10n.screenRecoveryKeySaveDescription
+        case .changeRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeyChangeDescription : L10n.screenRecoveryKeySaveDescription
+        case .fixRecovery:
+            return L10n.screenRecoveryKeyConfirmDescription
+        }
+    }
+    
+    var recoveryKeySubtitle: String {
+        switch mode {
+        case .setupRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeySetupGenerateKeyDescription : L10n.screenRecoveryKeySaveKeyDescription
+        case .changeRecovery:
+            return recoveryKey == nil ? L10n.screenRecoveryKeyChangeGenerateKeyDescription : L10n.screenRecoveryKeySaveKeyDescription
+        case .fixRecovery:
+            return L10n.screenRecoveryKeyConfirmKeyDescription
+        }
+    }
+}
+
+struct SecureBackupRecoveryKeyScreenViewBindings {
+    var confirmationRecoveryKey = ""
+    var alertInfo: AlertInfo<UUID>?
+}
+
+enum SecureBackupRecoveryKeyScreenViewAction {
+    case generateKey
+    case copyKey
+    case keySaved
+    case confirmKey
+    case done
+    case cancel
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupRecoveryKeyScreen/SecureBackupRecoveryKeyScreenViewModel.swift

@@ -0,0 +1,111 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias SecureBackupRecoveryKeyScreenViewModelType = StateStoreViewModel<SecureBackupRecoveryKeyScreenViewState, SecureBackupRecoveryKeyScreenViewAction>
+
+class SecureBackupRecoveryKeyScreenViewModel: SecureBackupRecoveryKeyScreenViewModelType, SecureBackupRecoveryKeyScreenViewModelProtocol {
+    private let secureBackupController: SecureBackupControllerProtocol
+    private weak var userIndicatorController: UserIndicatorControllerProtocol?
+    
+    private var actionsSubject: PassthroughSubject<SecureBackupRecoveryKeyScreenViewModelAction, Never> = .init()
+    var actions: AnyPublisher<SecureBackupRecoveryKeyScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(secureBackupController: SecureBackupControllerProtocol, userIndicatorController: UserIndicatorControllerProtocol?) {
+        self.secureBackupController = secureBackupController
+        self.userIndicatorController = userIndicatorController
+        
+        super.init(initialViewState: .init(mode: secureBackupController.recoveryKeyState.value.viewMode, bindings: .init()))
+        
+        secureBackupController.recoveryKeyState
+            .receive(on: DispatchQueue.main)
+            .sink(receiveValue: { [weak userIndicatorController] state in
+                let loadingIndicatorIdentifier = "SecureBackupRecoveryKeyScreenLoading"
+                switch state {
+                case .settingUp:
+                    userIndicatorController?.submitIndicator(.init(id: loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading, persistent: true))
+                default:
+                    userIndicatorController?.retractIndicatorWithId(loadingIndicatorIdentifier)
+                }
+            })
+            .store(in: &cancellables)
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: SecureBackupRecoveryKeyScreenViewAction) {
+        MXLog.info("View model: received view action: \(viewAction)")
+        
+        switch viewAction {
+        case .generateKey:
+            Task {
+                switch await secureBackupController.generateRecoveryKey() {
+                case .success(let key):
+                    state.recoveryKey = key
+                case .failure(let error):
+                    MXLog.error("Failed generating recovery key with error: \(error)")
+                    state.bindings.alertInfo = .init(id: .init())
+                }
+            }
+        case .copyKey:
+            UIPasteboard.general.string = state.recoveryKey
+            userIndicatorController?.submitIndicator(.init(title: "Copied recovery key"))
+            state.doneButtonEnabled = true
+        case .keySaved:
+            state.doneButtonEnabled = true
+        case .confirmKey:
+            Task {
+                switch await secureBackupController.confirmRecoveryKey(state.bindings.confirmationRecoveryKey) {
+                case .success:
+                    actionsSubject.send(.done(mode: context.viewState.mode))
+                case .failure(let error):
+                    MXLog.error("Failed confirming recovery key with error: \(error)")
+                    state.bindings.alertInfo = .init(id: .init())
+                }
+            }
+        case .cancel:
+            actionsSubject.send(.cancel)
+        case .done:
+            state.bindings.alertInfo = .init(id: .init(),
+                                             title: L10n.screenRecoveryKeySetupConfirmationTitle,
+                                             message: L10n.screenRecoveryKeySetupConfirmationDescription,
+                                             primaryButton: .init(title: L10n.actionCancel, role: .cancel, action: nil),
+                                             secondaryButton: .init(title: L10n.actionContinue, action: { [weak self] in
+                                                 guard let self else { return }
+                                                 actionsSubject.send(.done(mode: context.viewState.mode))
+                                             }))
+        }
+    }
+}
+
+extension SecureBackupRecoveryKeyState {
+    var viewMode: SecureBackupRecoveryKeyScreenViewMode {
+        switch self {
+        case .disabled:
+            return .setupRecovery
+        case .enabled:
+            return .changeRecovery
+        case .incomplete:
+            return .fixRecovery
+        default:
+            fatalError("Invalid recovery state")
+        }
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupRecoveryKeyScreen/SecureBackupRecoveryKeyScreenViewModelProtocol.swift

@@ -0,0 +1,23 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+
+@MainActor
+protocol SecureBackupRecoveryKeyScreenViewModelProtocol {
+    var actions: AnyPublisher<SecureBackupRecoveryKeyScreenViewModelAction, Never> { get }
+    var context: SecureBackupRecoveryKeyScreenViewModelType.Context { get }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupRecoveryKeyScreen/View/SecureBackupRecoveryKeyScreen.swift

@@ -0,0 +1,213 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import Compound
+import SwiftUI
+
+struct SecureBackupRecoveryKeyScreen: View {
+    @ObservedObject var context: SecureBackupRecoveryKeyScreenViewModel.Context
+    
+    @ScaledMetric private var iconSize = 70
+    
+    var body: some View {
+        mainContent
+            .padding()
+            .interactiveDismissDisabled()
+            .toolbar { toolbar }
+            .toolbar(.visible, for: .navigationBar)
+            .background(Color.compound.bgCanvasDefault.ignoresSafeArea())
+            .alert(item: $context.alertInfo)
+    }
+    
+    @ViewBuilder
+    private var mainContent: some View {
+        VStack(spacing: 48) {
+            switch context.viewState.mode {
+            case .setupRecovery, .changeRecovery:
+                header
+                newRecoveryKeySection
+            case .fixRecovery:
+                header
+                confirmRecoveryKeySection
+            }
+        }
+    }
+    
+    @ToolbarContentBuilder
+    private var toolbar: some ToolbarContent {
+        if context.viewState.recoveryKey == nil {
+            ToolbarItem(placement: .cancellationAction) {
+                Button(L10n.actionCancel) {
+                    context.send(viewAction: .cancel)
+                }
+            }
+        }
+    }
+    
+    private var header: some View {
+        VStack(spacing: 16) {
+            HeroImage(image: Image(asset: Asset.Images.secureBackupOn))
+            
+            Text(context.viewState.title)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.headingMDBold)
+                .multilineTextAlignment(.center)
+            
+            Text(context.viewState.subtitle)
+                .foregroundColor(.compound.textSecondary)
+                .font(.compound.bodyMD)
+                .multilineTextAlignment(.center)
+        }
+    }
+    
+    @ViewBuilder
+    private var newRecoveryKeySection: some View {
+        generateRecoveryKeySection
+        
+        Spacer()
+        
+        if let recoveryKey = context.viewState.recoveryKey {
+            ShareLink(item: recoveryKey) {
+                Label(L10n.screenRecoveryKeySaveAction, icon: \.download)
+            }
+            .buttonStyle(.compound(.primary))
+            .simultaneousGesture(TapGesture().onEnded { _ in
+                context.send(viewAction: .keySaved)
+            })
+        }
+        
+        Button {
+            context.send(viewAction: .done)
+        } label: {
+            Text(L10n.actionDone)
+        }
+        .buttonStyle(.compound(.primary))
+        .disabled(context.viewState.recoveryKey == nil || context.viewState.doneButtonEnabled == false)
+    }
+    
+    private var generateRecoveryKeySection: some View {
+        VStack(alignment: .leading) {
+            Text(L10n.commonRecoveryKey)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.bodySM)
+         
+            HStack {
+                if context.viewState.recoveryKey == nil {
+                    Button(generateButtonTitle) {
+                        context.send(viewAction: .generateKey)
+                    }
+                    .font(.compound.bodyLGSemibold)
+                } else {
+                    HStack(alignment: .top) {
+                        Text(context.viewState.recoveryKey ?? "")
+                            .foregroundColor(.compound.textPrimary)
+                            .font(.compound.bodyLG)
+                        
+                        Spacer()
+                        
+                        Button {
+                            context.send(viewAction: .copyKey)
+                        } label: {
+                            Image(asset: Asset.Images.copy)
+                        }
+                        .tint(.compound.iconSecondary)
+                        .accessibilityLabel(L10n.actionCopy)
+                    }
+                }
+            }
+            .frame(maxWidth: .infinity)
+            .padding()
+            .background(Color.compound.bgSubtleSecondaryLevel0)
+            .clipShape(RoundedRectangle(cornerRadius: 8))
+            
+            HStack(alignment: .top) {
+                if context.viewState.recoveryKey == nil {
+                    CompoundIcon(\.info, size: .small, relativeTo: .compound.bodySM)
+                }
+                
+                Text(context.viewState.recoveryKeySubtitle)
+                    .foregroundColor(.compound.textSecondary)
+                    .font(.compound.bodySM)
+            }
+        }
+    }
+    
+    private var generateButtonTitle: String {
+        context.viewState.mode == .setupRecovery ? L10n.screenRecoveryKeySetupGenerateKey : L10n.screenRecoveryKeyChangeGenerateKey
+    }
+    
+    @ViewBuilder
+    private var confirmRecoveryKeySection: some View {
+        VStack(alignment: .leading) {
+            Text(L10n.commonRecoveryKey)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.bodySM)
+            
+            TextField(L10n.screenRecoveryKeyConfirmKeyPlaceholder, text: $context.confirmationRecoveryKey, axis: .vertical)
+                .frame(maxWidth: .infinity)
+                .padding()
+                .background(Color.compound.bgSubtleSecondaryLevel0)
+                .clipShape(RoundedRectangle(cornerRadius: 8))
+            
+            Text(context.viewState.recoveryKeySubtitle)
+                .foregroundColor(.compound.textSecondary)
+                .font(.compound.bodySM)
+            
+            Spacer()
+            
+            Button {
+                context.send(viewAction: .confirmKey)
+            } label: {
+                Text(L10n.actionConfirm)
+            }
+            .buttonStyle(.compound(.primary))
+            .disabled(context.confirmationRecoveryKey.isEmpty)
+        }
+    }
+}
+
+// MARK: - Previews
+
+struct SecureBackupRecoveryKeyScreen_Previews: PreviewProvider, TestablePreview {
+    static let setupViewModel = viewModel(recoveryKeyState: .enabled)
+    static let notSetUpViewModel = viewModel(recoveryKeyState: .disabled)
+    static let incompleteViewModel = viewModel(recoveryKeyState: .incomplete)
+    
+    static var previews: some View {
+        NavigationStack {
+            SecureBackupRecoveryKeyScreen(context: notSetUpViewModel.context)
+        }
+        .previewDisplayName("Not set up")
+        
+        NavigationStack {
+            SecureBackupRecoveryKeyScreen(context: setupViewModel.context)
+        }
+        .previewDisplayName("Set up")
+
+        NavigationStack {
+            SecureBackupRecoveryKeyScreen(context: incompleteViewModel.context)
+        }
+        .previewDisplayName("Incomplete")
+    }
+    
+    static func viewModel(recoveryKeyState: SecureBackupRecoveryKeyState) -> SecureBackupRecoveryKeyScreenViewModelType {
+        let backupController = SecureBackupControllerMock()
+        backupController.underlyingRecoveryKeyState = CurrentValueSubject<SecureBackupRecoveryKeyState, Never>(recoveryKeyState).asCurrentValuePublisher()
+        
+        return SecureBackupRecoveryKeyScreenViewModel(secureBackupController: backupController, userIndicatorController: nil)
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupScreen/SecureBackupScreenCoordinator.swift

@@ -0,0 +1,116 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+struct SecureBackupScreenCoordinatorParameters {
+    let appSettings: AppSettings
+    let secureBackupController: SecureBackupControllerProtocol
+    weak var navigationStackCoordinator: NavigationStackCoordinator?
+    weak var userIndicatorController: UserIndicatorControllerProtocol?
+}
+
+enum SecureBackupScreenCoordinatorAction { }
+
+final class SecureBackupScreenCoordinator: CoordinatorProtocol {
+    private let parameters: SecureBackupScreenCoordinatorParameters
+    private var viewModel: SecureBackupScreenViewModelProtocol
+    private let actionsSubject: PassthroughSubject<SecureBackupScreenCoordinatorAction, Never> = .init()
+    private var cancellables = Set<AnyCancellable>()
+    
+    var actions: AnyPublisher<SecureBackupScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+    
+    init(parameters: SecureBackupScreenCoordinatorParameters) {
+        self.parameters = parameters
+        
+        viewModel = SecureBackupScreenViewModel(secureBackupController: parameters.secureBackupController,
+                                                userIndicatorController: parameters.userIndicatorController,
+                                                chatBackupDetailsURL: parameters.appSettings.chatBackupDetailsURL)
+    }
+    
+    func start() {
+        viewModel.actions.sink { [weak self] action in
+            guard let self else { return }
+            
+            switch action {
+            case .recoveryKey:
+                let navigationStackCoordinator = NavigationStackCoordinator()
+                let userIndicatorController = UserIndicatorController(rootCoordinator: navigationStackCoordinator)
+                
+                let recoveryKeyCoordinator = SecureBackupRecoveryKeyScreenCoordinator(parameters: .init(secureBackupController: parameters.secureBackupController,
+                                                                                                        userIndicatorController: userIndicatorController))
+                
+                recoveryKeyCoordinator.actions.sink { [weak self] action in
+                    guard let self else { return }
+                    
+                    parameters.navigationStackCoordinator?.setSheetCoordinator(nil)
+                    
+                    switch action {
+                    case .cancel:
+                        break
+                    case .recoverySetUp:
+                        showSuccessIndicator(title: L10n.screenRecoveryKeySetupSuccess)
+                    case .recoveryChanged:
+                        showSuccessIndicator(title: L10n.screenRecoveryKeyChangeSuccess)
+                    case .recoveryFixed:
+                        showSuccessIndicator(title: L10n.screenRecoveryKeyConfirmSuccess)
+                    }
+                }
+                .store(in: &cancellables)
+                
+                navigationStackCoordinator.setRootCoordinator(recoveryKeyCoordinator, animated: true)
+                
+                parameters.navigationStackCoordinator?.setSheetCoordinator(userIndicatorController)
+            case .keyBackup:
+                let navigationStackCoordinator = NavigationStackCoordinator()
+                let userIndicatorController = UserIndicatorController(rootCoordinator: navigationStackCoordinator)
+                
+                let keyBackupCoordinator = SecureBackupKeyBackupScreenCoordinator(parameters: .init(secureBackupController: parameters.secureBackupController,
+                                                                                                    userIndicatorController: userIndicatorController))
+                
+                keyBackupCoordinator.actions.sink { [weak self] action in
+                    switch action {
+                    case .done:
+                        self?.parameters.navigationStackCoordinator?.setSheetCoordinator(nil)
+                    }
+                }
+                .store(in: &cancellables)
+                
+                navigationStackCoordinator.setRootCoordinator(keyBackupCoordinator, animated: true)
+                
+                parameters.navigationStackCoordinator?.setSheetCoordinator(userIndicatorController)
+            }
+        }
+        .store(in: &cancellables)
+    }
+    
+    func toPresentable() -> AnyView {
+        AnyView(SecureBackupScreen(context: viewModel.context))
+    }
+    
+    // MARK: - Private
+    
+    private func showSuccessIndicator(title: String) {
+        parameters.userIndicatorController?.submitIndicator(.init(id: .init(),
+                                                                  type: .modal(progress: .none, interactiveDismissDisabled: false, allowsInteraction: false),
+                                                                  title: title,
+                                                                  iconName: "checkmark",
+                                                                  persistent: false))
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupScreen/SecureBackupScreenModels.swift

@@ -0,0 +1,38 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+enum SecureBackupScreenViewModelAction {
+    case recoveryKey
+    case keyBackup
+}
+
+struct SecureBackupScreenViewState: BindableState {
+    let chatBackupDetailsURL: URL
+    var recoveryKeyState = SecureBackupRecoveryKeyState.unknown
+    var keyBackupState = SecureBackupKeyBackupState.unknown
+    var bindings = SecureBackupScreenViewStateBindings()
+}
+
+struct SecureBackupScreenViewStateBindings {
+    var alertInfo: AlertInfo<UUID>?
+}
+
+enum SecureBackupScreenViewAction {
+    case recoveryKey
+    case keyBackup
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupScreen/SecureBackupScreenViewModel.swift

@@ -0,0 +1,85 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias SecureBackupScreenViewModelType = StateStoreViewModel<SecureBackupScreenViewState, SecureBackupScreenViewAction>
+
+class SecureBackupScreenViewModel: SecureBackupScreenViewModelType, SecureBackupScreenViewModelProtocol {
+    private let secureBackupController: SecureBackupControllerProtocol
+    private weak var userIndicatorController: UserIndicatorControllerProtocol?
+    
+    private var actionsSubject: PassthroughSubject<SecureBackupScreenViewModelAction, Never> = .init()
+    var actions: AnyPublisher<SecureBackupScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(secureBackupController: SecureBackupControllerProtocol,
+         userIndicatorController: UserIndicatorControllerProtocol?,
+         chatBackupDetailsURL: URL) {
+        self.secureBackupController = secureBackupController
+        self.userIndicatorController = userIndicatorController
+        
+        super.init(initialViewState: .init(chatBackupDetailsURL: chatBackupDetailsURL))
+        
+        secureBackupController.recoveryKeyState
+            .receive(on: DispatchQueue.main)
+            .weakAssign(to: \.state.recoveryKeyState, on: self)
+            .store(in: &cancellables)
+        
+        secureBackupController.keyBackupState
+            .receive(on: DispatchQueue.main)
+            .weakAssign(to: \.state.keyBackupState, on: self)
+            .store(in: &cancellables)
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: SecureBackupScreenViewAction) {
+        switch viewAction {
+        case .recoveryKey:
+            actionsSubject.send(.recoveryKey)
+        case .keyBackup:
+            switch secureBackupController.keyBackupState.value {
+            case .disabled:
+                enableKeyBackup()
+            case .enabled:
+                actionsSubject.send(.keyBackup)
+            default:
+                break
+            }
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func enableKeyBackup() {
+        Task {
+            let loadingIndicatorIdentifier = "SecureBackupScreenLoading"
+            userIndicatorController?.submitIndicator(.init(id: loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading, persistent: true))
+            switch await secureBackupController.enableBackup() {
+            case .success:
+                break
+            case .failure(let error):
+                MXLog.error("Failed enabling key backup with error: \(error)")
+                state.bindings.alertInfo = .init(id: .init())
+            }
+            
+            userIndicatorController?.retractIndicatorWithId(loadingIndicatorIdentifier)
+        }
+    }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupScreen/SecureBackupScreenViewModelProtocol.swift

@@ -0,0 +1,23 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+
+@MainActor
+protocol SecureBackupScreenViewModelProtocol {
+    var actions: AnyPublisher<SecureBackupScreenViewModelAction, Never> { get }
+    var context: SecureBackupScreenViewModelType.Context { get }
+}

ElementX/Sources/Screens/SecureBackup/SecureBackupScreen/View/SecureBackupScreen.swift

@@ -0,0 +1,168 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import Compound
+import SwiftUI
+
+struct SecureBackupScreen: View {
+    @ObservedObject var context: SecureBackupScreenViewModel.Context
+    
+    var body: some View {
+        Form {
+            if context.viewState.keyBackupState != .enabled {
+                keyBackupSection
+            } else {
+                keyBackupSection
+                recoveryKeySection
+            }
+        }
+        .compoundList()
+        .navigationTitle(L10n.commonChatBackup)
+        .navigationBarTitleDisplayMode(.inline)
+        .alert(item: $context.alertInfo)
+    }
+    
+    // MARK: - Private
+    
+    @ViewBuilder
+    private var keyBackupSection: some View {
+        Section {
+            ListRow(kind: .custom {
+                VStack(alignment: .leading, spacing: 2) {
+                    Text(L10n.screenChatBackupKeyBackupTitle)
+                        .font(.compound.bodyLGSemibold)
+                        .foregroundColor(.compound.textPrimary)
+                    
+                    Text(keyBackupDescriptionWithLearnMoreLink)
+                        .font(.compound.bodySM)
+                        .foregroundColor(.compound.textSecondary)
+                }
+                .padding(.horizontal, ListRowPadding.horizontal)
+                .padding(.vertical, ListRowPadding.vertical)
+                .accessibilityElement(children: .combine)
+            })
+            
+            keyBackupButton
+        }
+    }
+    
+    private var keyBackupDescriptionWithLearnMoreLink: AttributedString {
+        let linkPlaceholder = "{link}"
+        var description = AttributedString(L10n.screenChatBackupKeyBackupDescription(linkPlaceholder))
+        var linkString = AttributedString(L10n.actionLearnMore)
+        linkString.link = context.viewState.chatBackupDetailsURL
+        linkString.bold()
+        description.replace(linkPlaceholder, with: linkString)
+        return description
+    }
+    
+    @ViewBuilder
+    private var keyBackupButton: some View {
+        switch context.viewState.keyBackupState {
+        case .enabled, .disabling:
+            ListRow(label: .plain(title: L10n.screenChatBackupKeyBackupActionDisable, role: .destructive), kind: .navigationLink {
+                context.send(viewAction: .keyBackup)
+            })
+        case .disabled, .enabling:
+            ListRow(label: .plain(title: L10n.screenChatBackupKeyBackupActionEnable), kind: .navigationLink {
+                context.send(viewAction: .keyBackup)
+            })
+        default:
+            ListRow(label: .plain(title: L10n.commonLoading), details: .isWaiting(true), kind: .label)
+        }
+    }
+    
+    @ViewBuilder
+    private var recoveryKeySection: some View {
+        Section {
+            switch context.viewState.recoveryKeyState {
+            case .enabled:
+                ListRow(label: .plain(title: L10n.screenChatBackupRecoveryActionChange),
+                        kind: .navigationLink { context.send(viewAction: .recoveryKey) })
+            case .disabled:
+                ListRow(label: .plain(title: L10n.screenChatBackupRecoveryActionSetup),
+                        details: .icon(BadgeView(size: 10)),
+                        kind: .navigationLink { context.send(viewAction: .recoveryKey) })
+            case .incomplete:
+                ListRow(label: .plain(title: L10n.screenChatBackupRecoveryActionConfirm),
+                        kind: .navigationLink { context.send(viewAction: .recoveryKey) })
+            default:
+                ListRow(label: .plain(title: L10n.commonLoading), details: .isWaiting(true), kind: .label)
+            }
+        } footer: {
+            recoveryKeySectionFooter
+                .compoundFormSectionFooter()
+        }
+    }
+    
+    @ViewBuilder
+    private var recoveryKeySectionFooter: some View {
+        switch context.viewState.recoveryKeyState {
+        case .disabled:
+            Text(L10n.screenChatBackupRecoveryActionSetupDescription(InfoPlistReader.main.bundleDisplayName))
+        case .incomplete:
+            Text(L10n.screenChatBackupRecoveryActionConfirmDescription)
+        default:
+            EmptyView()
+        }
+    }
+}
+
+// MARK: - Previews
+
+struct SecureBackupScreen_Previews: PreviewProvider, TestablePreview {
+    static let bothSetupViewModel = viewModel(keyBackupState: .enabled, recoveryKeyState: .enabled)
+    static let onlyKeyBackupSetUpViewModel = viewModel(keyBackupState: .enabled, recoveryKeyState: .disabled)
+    static let keyBackupDisabledViewModel = viewModel(keyBackupState: .disabled, recoveryKeyState: .disabled)
+    static let recoveryIncompleteViewModel = viewModel(keyBackupState: .enabled, recoveryKeyState: .incomplete)
+    
+    static var previews: some View {
+        Group {
+            NavigationStack {
+                SecureBackupScreen(context: bothSetupViewModel.context)
+            }
+            .previewDisplayName("Both setup")
+            
+            NavigationStack {
+                SecureBackupScreen(context: onlyKeyBackupSetUpViewModel.context)
+            }
+            .previewDisplayName("Only key backup setup")
+            
+            NavigationStack {
+                SecureBackupScreen(context: keyBackupDisabledViewModel.context)
+            }
+            .previewDisplayName("Key backup disabled")
+            
+            NavigationStack {
+                SecureBackupScreen(context: recoveryIncompleteViewModel.context)
+            }
+            .previewDisplayName("Recovery incomplete")
+        }
+        .snapshot(delay: 0.25)
+    }
+    
+    static func viewModel(keyBackupState: SecureBackupKeyBackupState,
+                          recoveryKeyState: SecureBackupRecoveryKeyState) -> SecureBackupScreenViewModelType {
+        let backupController = SecureBackupControllerMock()
+        backupController.underlyingKeyBackupState = CurrentValueSubject<SecureBackupKeyBackupState, Never>(keyBackupState).asCurrentValuePublisher()
+        backupController.underlyingRecoveryKeyState = CurrentValueSubject<SecureBackupRecoveryKeyState, Never>(recoveryKeyState).asCurrentValuePublisher()
+        
+        return SecureBackupScreenViewModel(secureBackupController: backupController,
+                                           userIndicatorController: nil,
+                                           chatBackupDetailsURL: .sharedPublicDirectory)
+    }
+}

ElementX/Sources/Screens/SessionVerificationScreen/View/SessionVerificationScreen.swift

@@ -71,7 +71,7 @@ struct SessionVerificationScreen: View {
     @ViewBuilder
     private var screenHeader: some View {
         VStack(spacing: 0) {
-            AuthenticationIconImage(image: Image(systemName: headerImageName))
+            HeroImage(image: Image(systemName: headerImageName))
                 .padding(.bottom, 16)
             
             Text(context.viewState.title ?? "")

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

@@ -53,6 +53,7 @@ protocol DeveloperOptionsProtocol: AnyObject {
     var mentionsEnabled: Bool { get set }
     var appLockFlowEnabled: Bool { get set }
     var elementCallEnabled: Bool { get set }
+    var chatBackupEnabled: Bool { get set }
 }
 
 extension AppSettings: DeveloperOptionsProtocol { }

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

@@ -31,6 +31,18 @@ struct DeveloperOptionsScreen: View {
                 }
             }
             
+            Section("Security") {
+                Toggle(isOn: $context.chatBackupEnabled) {
+                    Text("Chat backup")
+                    Text("Requires app reboot")
+                }
+                
+                Toggle(isOn: $context.appLockFlowEnabled) {
+                    Text("PIN/Biometric lock")
+                    Text("Resets on reboot")
+                }
+            }
+            
             Section("Timeline") {
                 Toggle(isOn: $context.shouldCollapseRoomStateEvents) {
                     Text("Collapse room state events")
@@ -52,7 +64,7 @@ struct DeveloperOptionsScreen: View {
                 }
                 
                 Toggle(isOn: $context.elementCallEnabled) {
-                    Text("Elemement Call")
+                    Text("Element Call")
                 }
             }
             
@@ -67,13 +79,6 @@ struct DeveloperOptionsScreen: View {
                     Text("Enable voice messages")
                 }
             }
-            
-            Section("Security") {
-                Toggle(isOn: $context.appLockFlowEnabled) {
-                    Text("PIN/Biometric lock")
-                    Text("Resets on reboot")
-                }
-            }
 
             Section {
                 Button {

ElementX/Sources/Screens/Settings/SettingsScreen/SettingsScreenCoordinator.swift

@@ -24,6 +24,7 @@ struct SettingsScreenCoordinatorParameters {
     let appLockService: AppLockServiceProtocol
     let bugReportService: BugReportServiceProtocol
     let notificationSettings: NotificationSettingsProxyProtocol
+    let secureBackupController: SecureBackupControllerProtocol
     let appSettings: AppSettings
 }
 
@@ -49,7 +50,8 @@ final class SettingsScreenCoordinator: CoordinatorProtocol {
     init(parameters: SettingsScreenCoordinatorParameters) {
         self.parameters = parameters
         
-        viewModel = SettingsScreenViewModel(userSession: parameters.userSession, appSettings: parameters.appSettings)
+        viewModel = SettingsScreenViewModel(userSession: parameters.userSession,
+                                            appSettings: parameters.appSettings)
         
         viewModel.actions
             .sink { [weak self] action in
@@ -71,7 +73,9 @@ final class SettingsScreenCoordinator: CoordinatorProtocol {
                 case .about:
                     presentLegalInformationScreen()
                 case .sessionVerification:
-                    verifySession()
+                    presentSessionVerificationScreen()
+                case .secureBackup:
+                    presentSecureBackupScreen()
                 case .accountSessionsList:
                     presentAccountSessionsListURL()
                 case .notifications:
@@ -172,7 +176,7 @@ final class SettingsScreenCoordinator: CoordinatorProtocol {
         parameters.navigationStackCoordinator?.push(LegalInformationScreenCoordinator(appSettings: parameters.appSettings))
     }
     
-    private func verifySession() {
+    private func presentSessionVerificationScreen() {
         guard let sessionVerificationController = parameters.userSession.sessionVerificationController else {
             fatalError("The sessionVerificationController should aways be valid at this point")
         }
@@ -196,6 +200,15 @@ final class SettingsScreenCoordinator: CoordinatorProtocol {
         }
     }
     
+    private func presentSecureBackupScreen() {
+        let coordinator = SecureBackupScreenCoordinator(parameters: .init(appSettings: parameters.appSettings,
+                                                                          secureBackupController: parameters.userSession.clientProxy.secureBackupController,
+                                                                          navigationStackCoordinator: parameters.navigationStackCoordinator,
+                                                                          userIndicatorController: parameters.userIndicatorController))
+        
+        parameters.navigationStackCoordinator?.push(coordinator)
+    }
+    
     private func presentNotificationSettings() {
         let notificationParameters = NotificationSettingsScreenCoordinatorParameters(navigationStackCoordinator: parameters.navigationStackCoordinator,
                                                                                      userSession: parameters.userSession,

ElementX/Sources/Screens/Settings/SettingsScreen/SettingsScreenModels.swift

@@ -26,6 +26,7 @@ enum SettingsScreenViewModelAction {
     case reportBug
     case about
     case sessionVerification
+    case secureBackup
     case accountSessionsList
     case notifications
     case advancedSettings
@@ -40,7 +41,9 @@ struct SettingsScreenViewState: BindableState {
     var accountSessionsListURL: URL?
     var userAvatarURL: URL?
     var userDisplayName: String?
-    var showSessionVerificationSection: Bool
+    var isSessionVerified: Bool
+    var chatBackupEnabled = false
+    var showSecureBackupBadge = false
     var showAppLockSettings: Bool
     var showDeveloperOptions: Bool
     
@@ -57,6 +60,7 @@ enum SettingsScreenViewAction {
     case reportBug
     case about
     case sessionVerification
+    case secureBackup
     case accountSessionsList
     case notifications
     case developerOptions

ElementX/Sources/Screens/Settings/SettingsScreen/SettingsScreenViewModel.swift

@@ -33,16 +33,16 @@ class SettingsScreenViewModel: SettingsScreenViewModelType, SettingsScreenViewMo
         self.userSession = userSession
         self.appSettings = appSettings
         
-        var showSessionVerificationSection = false
+        var isSessionVerified = true
         if let sessionVerificationController = userSession.sessionVerificationController {
-            showSessionVerificationSection = !sessionVerificationController.isVerified
+            isSessionVerified = sessionVerificationController.isVerified
         }
         
         super.init(initialViewState: .init(deviceID: userSession.deviceID,
                                            userID: userSession.userID,
                                            accountProfileURL: userSession.clientProxy.accountURL(action: .profile),
                                            accountSessionsListURL: userSession.clientProxy.accountURL(action: .sessionsList),
-                                           showSessionVerificationSection: showSessionVerificationSection,
+                                           isSessionVerified: isSessionVerified,
                                            showAppLockSettings: appSettings.appLockFlowEnabled,
                                            showDeveloperOptions: appSettings.canShowDeveloperOptions),
                    imageProvider: userSession.mediaProvider)
@@ -56,11 +56,24 @@ class SettingsScreenViewModel: SettingsScreenViewModelType, SettingsScreenViewMo
             .receive(on: DispatchQueue.main)
             .weakAssign(to: \.state.userDisplayName, on: self)
             .store(in: &cancellables)
-        
+
         appSettings.$appLockFlowEnabled
             .weakAssign(to: \.state.showAppLockSettings, on: self)
             .store(in: &cancellables)
+        
+        appSettings.$chatBackupEnabled
+            .weakAssign(to: \.state.chatBackupEnabled, on: self)
+            .store(in: &cancellables)
+        
+        userSession.clientProxy.secureBackupController.recoveryKeyState
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] state in
+                guard let self else { return }
                 
+                self.state.showSecureBackupBadge = (state == .unknown || state == .disabled) && appSettings.chatBackupEnabled
+            }
+            .store(in: &cancellables)
+        
         Task {
             await userSession.clientProxy.loadUserAvatarURL()
             await userSession.clientProxy.loadUserDisplayName()
@@ -71,9 +84,9 @@ class SettingsScreenViewModel: SettingsScreenViewModelType, SettingsScreenViewMo
             .sink { [weak self] callback in
                 switch callback {
                 case .sessionVerificationNeeded:
-                    self?.state.showSessionVerificationSection = true
+                    self?.state.isSessionVerified = false
                 case .didVerifySession:
-                    self?.state.showSessionVerificationSection = false
+                    self?.state.isSessionVerified = true
                 default:
                     break
                 }
@@ -101,6 +114,8 @@ class SettingsScreenViewModel: SettingsScreenViewModelType, SettingsScreenViewMo
             actionsSubject.send(.logout)
         case .sessionVerification:
             actionsSubject.send(.sessionVerification)
+        case .secureBackup:
+            actionsSubject.send(.secureBackup)
         case .notifications:
             actionsSubject.send(.notifications)
         case .accountSessionsList:

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

@@ -27,9 +27,7 @@ struct SettingsScreen: View {
         Form {
             userSection
             
-            if context.viewState.showSessionVerificationSection {
-                sessionVerificationSection
-            }
+            accountSecuritySection
             
             mainSection
             
@@ -86,11 +84,22 @@ struct SettingsScreen: View {
         }
     }
     
-    private var sessionVerificationSection: some View {
-        Section {
-            ListRow(label: .default(title: L10n.actionCompleteVerification,
-                                    systemIcon: .checkmarkShield),
-                    kind: .button { context.send(viewAction: .sessionVerification) })
+    @ViewBuilder
+    private var accountSecuritySection: some View {
+        if !context.viewState.isSessionVerified || context.viewState.chatBackupEnabled {
+            Section {
+                if !context.viewState.isSessionVerified {
+                    ListRow(label: .default(title: L10n.actionCompleteVerification,
+                                            systemIcon: .checkmarkShield),
+                            kind: .button { context.send(viewAction: .sessionVerification) })
+                } else if context.viewState.chatBackupEnabled {
+                    ListRow(label: .default(title: L10n.commonChatBackup,
+                                            icon: Image(asset: Asset.Images.secureBackupIcon)),
+                            details: context.viewState.showSecureBackupBadge ? .icon(secureBackupBadge) : nil,
+                            kind: .navigationLink { context.send(viewAction: .secureBackup) })
+                        .accessibilityIdentifier(A11yIdentifiers.settingsScreen.secureBackup)
+                }
+            }
         }
     }
     
@@ -222,6 +231,13 @@ struct SettingsScreen: View {
                 .accessibilityIdentifier(A11yIdentifiers.settingsScreen.done)
         }
     }
+    
+    @ViewBuilder
+    private var secureBackupBadge: some View {
+        if context.viewState.showSecureBackupBadge {
+            BadgeView(size: 10)
+        }
+    }
 }
 
 private extension TimelineStyle {