Add trailing status indicators for daita and multihop cells

Author: rablador

ios/MullvadVPN/View controllers/Settings/SettingsCellFactory.swift

@@ -111,7 +111,14 @@ final class SettingsCellFactory: CellFactoryProtocol {
                 value: "DAITA",
                 comment: ""
             )
-            cell.detailTitleLabel.text = nil
+
+            cell.detailTitleLabel.text = NSLocalizedString(
+                "DAITA_CELL_DETAIL_LABEL",
+                tableName: "Settings",
+                value: viewModel.daitaSettings.daitaState.isEnabled ? "On" : "Off",
+                comment: ""
+            )
+
             cell.accessibilityIdentifier = item.accessibilityIdentifier
             cell.disclosureType = .chevron
 
@@ -124,7 +131,14 @@ final class SettingsCellFactory: CellFactoryProtocol {
                 value: "Multihop",
                 comment: ""
             )
-            cell.detailTitleLabel.text = nil
+
+            cell.detailTitleLabel.text = NSLocalizedString(
+                "MULTIHOP_CELL_DETAIL_LABEL",
+                tableName: "Settings",
+                value: viewModel.multihopState.isEnabled ? "On" : "Off",
+                comment: ""
+            )
+
             cell.accessibilityIdentifier = item.accessibilityIdentifier
             cell.disclosureType = .chevron
         }

ios/MullvadVPN/View controllers/Settings/SettingsDataSource.swift

@@ -104,6 +104,14 @@ final class SettingsDataSource: UITableViewDiffableDataSource<SettingsDataSource
         storedAccountData = interactor.deviceState.accountData
     }
 
+    func reload(from tunnelSettings: LatestTunnelSettings) {
+        settingsCellFactory.viewModel = SettingsViewModel(from: tunnelSettings)
+
+        var snapshot = snapshot()
+        snapshot.reconfigureItems(snapshot.itemIdentifiers)
+        apply(snapshot, animatingDifferences: false)
+    }
+
     // MARK: - UITableViewDelegate
 
     func tableView(_ tableView: UITableView, shouldHighlightRowAt indexPath: IndexPath) -> Bool {
@@ -171,10 +179,4 @@ extension SettingsDataSource: SettingsCellEventHandler {
     func showInfo(for button: SettingsInfoButtonItem) {
         delegate?.showInfo(for: button)
     }
-
-    private func reloadItem(_ item: Item) {
-        var snapshot = snapshot()
-        snapshot.reloadItems([item])
-        apply(snapshot, animatingDifferences: false)
-    }
 }

ios/MullvadVPN/View controllers/Settings/SettingsInteractor.swift

@@ -15,6 +15,7 @@ final class SettingsInteractor {
     private var tunnelObserver: TunnelObserver?
 
     var didUpdateDeviceState: ((DeviceState) -> Void)?
+    var didUpdateTunnelSettings: ((LatestTunnelSettings) -> Void)?
 
     var tunnelSettings: LatestTunnelSettings {
         tunnelManager.settings
@@ -28,41 +29,17 @@ final class SettingsInteractor {
         self.tunnelManager = tunnelManager
 
         let tunnelObserver =
-            TunnelBlockObserver(didUpdateDeviceState: { [weak self] _, deviceState, _ in
-                self?.didUpdateDeviceState?(deviceState)
-            })
+            TunnelBlockObserver(
+                didUpdateDeviceState: { [weak self] _, deviceState, _ in
+                    self?.didUpdateDeviceState?(deviceState)
+                },
+                didUpdateTunnelSettings: { [weak self] _, settings in
+                    self?.didUpdateTunnelSettings?(settings)
+                }
+            )
 
         tunnelManager.addObserver(tunnelObserver)
 
         self.tunnelObserver = tunnelObserver
     }
-
-    func updateDAITASettings(_ settings: DAITASettings) {
-        tunnelManager.updateSettings([.daita(settings)])
-    }
-
-    func evaluateDaitaSettingsCompatibility(_ settings: DAITASettings) -> DAITASettingsCompatibilityError? {
-        guard settings.daitaState.isEnabled else { return nil }
-
-        var tunnelSettings = tunnelSettings
-        tunnelSettings.daita = settings
-
-        var compatibilityError: DAITASettingsCompatibilityError?
-
-        do {
-            _ = try tunnelManager.selectRelays(tunnelSettings: tunnelSettings)
-        } catch let error as NoRelaysSatisfyingConstraintsError where error.reason == .noDaitaRelaysFound {
-            // Return error if no relays could be selected due to DAITA constraints.
-            compatibilityError = tunnelSettings.tunnelMultihopState.isEnabled ? .multihop : .singlehop
-        } catch _ as NoRelaysSatisfyingConstraintsError {
-            // Even if the constraints error is not DAITA specific, if both DAITA and Direct only are enabled,
-            // we should return a DAITA related error since the current settings would have resulted in the
-            // relay selector not being able to select a DAITA relay anyway.
-            if settings.isDirectOnly {
-                compatibilityError = tunnelSettings.tunnelMultihopState.isEnabled ? .multihop : .singlehop
-            }
-        } catch {}
-
-        return compatibilityError
-    }
 }

ios/MullvadVPN/View controllers/Settings/SettingsViewController.swift

@@ -69,6 +69,10 @@ class SettingsViewController: UITableViewController {
 
         dataSource = SettingsDataSource(tableView: tableView, interactor: interactor)
         dataSource?.delegate = self
+
+        interactor.didUpdateTunnelSettings = { [weak self] newSettings in
+            self?.dataSource?.reload(from: newSettings)
+        }
     }
 }
 

ios/MullvadVPN/View controllers/Settings/SettingsViewModel.swift

@@ -10,12 +10,10 @@ import MullvadSettings
 
 struct SettingsViewModel {
     private(set) var daitaSettings: DAITASettings
-
-    mutating func setDAITASettings(_ newSettings: DAITASettings) {
-        daitaSettings = newSettings
-    }
+    private(set) var multihopState: MultihopState
 
     init(from tunnelSettings: LatestTunnelSettings = LatestTunnelSettings()) {
         daitaSettings = tunnelSettings.daita
+        multihopState = tunnelSettings.tunnelMultihopState
     }
 }

ios/MullvadVPN/View controllers/Settings/SwiftUI components/SingleChoiceList.swift

@@ -411,4 +411,4 @@ struct SingleChoiceList<Value>: View where Value: Equatable {
             )
         }
     }
-}
+} // swiftlint:disable:this file_length