Feature/app shut down (#62)

- In preparation of the app End of Life, check the configuration response for the EOL status and when it has been reached, clean up all exposure data, reset notifications and turn of the EN API and background checks - New screen that will be displayed after EOL instead of the normal UI - Onboarding flow also reflects to Dynamic Type changes in real time Co-authored-by: Henry Jalonen <henry.jalonen@solita.fi>
THLfi · Mar 26, 2022 · 7072046 · 7072046
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Added
+- In preparation of the app End of Life, check the configuration response for the EOL status and when it has been reached, clean up all exposure data, reset notifications and turn of the EN API and background checks
+- New screen that will be displayed after EOL instead of the normal UI
+
+### Changed
+- Onboarding flow also reflects to Dynamic Type changes in real time
+
 ## 2.4.3
 
 ### Changed

diff --git a/Koronavilkku/Koronavilkku.xcodeproj/project.pbxproj b/Koronavilkku/Koronavilkku.xcodeproj/project.pbxproj
@@ -7,6 +7,8 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		112CB85C27E31A0400960B59 /* EndOfLifeViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 112CB85B27E31A0400960B59 /* EndOfLifeViewController.swift */; };
+		112CB86127E8B3DE00960B59 /* StatisticsCard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 112CB86027E8B3DE00960B59 /* StatisticsCard.swift */; };
 		327C940224BED1C9003C8429 /* ApiResponses.swift in Sources */ = {isa = PBXBuildFile; fileRef = 327C940124BED1C9003C8429 /* ApiResponses.swift */; };
 		3288A07724AC593300365B46 /* Backend.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3288A07624AC593300365B46 /* Backend.swift */; };
 		32899E4924C0680600CFFE27 /* UIViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 32899E4824C0680600CFFE27 /* UIViewController.swift */; };
@@ -168,6 +170,8 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		112CB85B27E31A0400960B59 /* EndOfLifeViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EndOfLifeViewController.swift; sourceTree = "<group>"; };
+		112CB86027E8B3DE00960B59 /* StatisticsCard.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatisticsCard.swift; sourceTree = "<group>"; };
 		327C940124BED1C9003C8429 /* ApiResponses.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ApiResponses.swift; sourceTree = "<group>"; };
 		3288A07624AC593300365B46 /* Backend.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Backend.swift; sourceTree = "<group>"; };
 		32899E4824C0680600CFFE27 /* UIViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIViewController.swift; sourceTree = "<group>"; };
@@ -451,6 +455,7 @@
 				EA0EB8CF25ED2D2F00A6D0DC /* NumberView.swift */,
 				EAF340C42580F1460092ED6E /* RadioButton.swift */,
 				56C26BAF24AF3A0B002F83C1 /* RoundedButton.swift */,
+				112CB86027E8B3DE00960B59 /* StatisticsCard.swift */,
 			);
 			path = Components;
 			sourceTree = "<group>";
@@ -574,6 +579,7 @@
 				D98EDD2C24CC9C93003E09A1 /* SettingsViewController.swift */,
 				D98EDD2A24CC7EBA003E09A1 /* SymptomsViewController.swift */,
 				32B5955D24AA21EC00CC386E /* TestViewController.swift */,
+				112CB85B27E31A0400960B59 /* EndOfLifeViewController.swift */,
 			);
 			path = ViewController;
 			sourceTree = "<group>";
@@ -917,6 +923,7 @@
 				EA8E2251258250FF0008EE92 /* TravelStatusViewController.swift in Sources */,
 				EA7BEC9225712B56005DDF3D /* BulletItem.swift in Sources */,
 				561878AE24AD2BDE004B7563 /* PublishTokensViewController.swift in Sources */,
+				112CB85C27E31A0400960B59 /* EndOfLifeViewController.swift in Sources */,
 				56E3349624CCC0BB0017CD9A /* MunicipalityContactInformationView.swift in Sources */,
 				EA4A59432561C25800E65CFB /* Publisher.swift in Sources */,
 				D98EDD2724CB3E17003E09A1 /* LinkItem.swift in Sources */,
@@ -1009,6 +1016,7 @@
 				EAF340C52580F1460092ED6E /* RadioButton.swift in Sources */,
 				563D44B924AB9CD3008FE2BB /* Dictionary+IndexSubscript.swift in Sources */,
 				EAC4CD1A25CC21CF001A4648 /* Footer.swift in Sources */,
+				112CB86127E8B3DE00960B59 /* StatisticsCard.swift in Sources */,
 				56E3349224CB02C00017CD9A /* ExposureDetectionData.swift in Sources */,
 				EA71E990251E25E900E66F64 /* ChangeLanguageViewController.swift in Sources */,
 				EAC4CD0425CBD67C001A4648 /* NoExposuresView.swift in Sources */,

diff --git a/Koronavilkku/Koronavilkku/Localization/en.lproj/Localizable.strings b/Koronavilkku/Koronavilkku/Localization/en.lproj/Localizable.strings
@@ -313,3 +313,7 @@
 
 "ExposureNotificationTitle" = "Potential exposure";
 "ExposureNotificationBody" = "You may have been exposed to the coronavirus. Open Koronavilkku and see instructions.";
+
+// MARK: EndOfLifeViewController
+"EndOfLifeTitle" = "Koronavilkku is no longer in use";
+"EndOfLifeMessage" = "You can now uninstall Koronavilkku from your phone. Thank you for using the app and doing your part in the fight against coronavirus!";
diff --git a/Koronavilkku/Koronavilkku/Localization/fi.lproj/Localizable.strings b/Koronavilkku/Koronavilkku/Localization/fi.lproj/Localizable.strings
@@ -313,3 +313,7 @@
 
 "ExposureNotificationTitle" = "Mahdollinen altistuminen";
 "ExposureNotificationBody" = "Olet saattanut altistua koronavirukselle. Avaa Koronavilkku ja katso toimintaohjeet.";
+
+// MARK: EndOfLifeViewController
+"EndOfLifeTitle" = "Koronavilkun toiminta on päättynyt";
+"EndOfLifeMessage" = "Voit nyt poistaa Koronavilkun puhelimestasi. Kiitos, että käytit sovellusta ja osallistuit koronaviruksen torjuntaan!";
diff --git a/Koronavilkku/Koronavilkku/Localization/sv.lproj/Localizable.strings b/Koronavilkku/Koronavilkku/Localization/sv.lproj/Localizable.strings
@@ -313,3 +313,7 @@
 
 "ExposureNotificationTitle" = "Eventuell exponering";
 "ExposureNotificationBody" = "Du kan ha exponerats för coronaviruset. Öppna Coronablinkern och se anvisningarna.";
+
+// MARK: EndOfLifeViewController
+"EndOfLifeTitle" = "Coronablinkern har lagts ner";
+"EndOfLifeMessage" = "Nu kan du avlägsna Coronablinkern från din telefon. Tack för att du använde appen och deltog i bekämpningen av coronaviruset!";
diff --git a/Koronavilkku/Koronavilkku/Model/ExposureConfiguration.swift b/Koronavilkku/Koronavilkku/Model/ExposureConfiguration.swift
@@ -18,6 +18,9 @@ struct ExposureConfiguration: Codable {
     let daysSinceExposureThreshold: Int
     let minimumWindowScore: Double
     let minimumDailyScore: Int
+
+    let endOfLifeReached: Bool
+    let endOfLifeStatistics: [EndOfLifeStatistic]
 
     let daysSinceOnsetToInfectiousness: [String: String]
 
@@ -47,6 +50,10 @@ struct ExposureConfiguration: Codable {
     }
 }
 
+// MARK: - EndOfLifeStatistic
+struct EndOfLifeStatistic: Codable {
+    let value, label: Localized
+}
 
 extension ENExposureConfiguration {
     convenience init(from: ExposureConfiguration) {

diff --git a/Koronavilkku/Koronavilkku/Repository/ExposureRepository.swift b/Koronavilkku/Koronavilkku/Repository/ExposureRepository.swift
@@ -18,6 +18,9 @@ protocol ExposureRepository {
     func deleteBatchFiles()
     func removeExpiredExposures()
     func showExposureNotification(delay: TimeInterval?)
+
+    var isEndOfLife: Bool { get }
+    var onEndOfLife: AnyPublisher<Void, Never> { get }
 }
 
 struct ExposureRepositoryImpl : ExposureRepository {
@@ -105,9 +108,35 @@ struct ExposureRepositoryImpl : ExposureRepository {
     }
 
     func getConfiguration() -> AnyPublisher<ExposureConfiguration, Error> {
-        return backend.getConfiguration()
+        return backend.getConfiguration().receive(on: RunLoop.main).map { config in
+            if config.endOfLifeReached {
+                LocalStore.shared.endOfLifeStatisticsData = config.endOfLifeStatistics
+                notificationService.updateBadgeNumber(nil)
+                LocalStore.shared.exposures.removeAll()
+                LocalStore.shared.countExposureNotifications.removeAll()
+                LocalStore.shared.daysExposureNotifications.removeAll()
+
+                if exposureManager.exposureNotificationStatus != .unauthorized {
+                    setStatus(enabled: false)
+                }
+            }
+
+            return config
+        }
+        .eraseToAnyPublisher()
     }
 
+    var isEndOfLife: Bool {
+        !LocalStore.shared.endOfLifeStatisticsData.isEmpty
+    }
+
+    var onEndOfLife: AnyPublisher<Void, Never> {
+        LocalStore.shared.$endOfLifeStatisticsData.$wrappedValue
+            .filter { !$0.isEmpty }
+            .map { _ in }
+            .eraseToAnyPublisher()
+    }
+
     func detectExposures(ids: [String], config: ExposureConfiguration) -> AnyPublisher<Bool, Error> {
 
         let urls = ids.map { self.storage.getFileUrls(forBatchId: $0) }.flatMap { $0 }

diff --git a/Koronavilkku/Koronavilkku/Repository/LocalStore.swift b/Koronavilkku/Koronavilkku/Repository/LocalStore.swift
@@ -72,6 +72,9 @@ class LocalStore : BatchIdCache {
     @Persisted(userDefaultsKey: "detectionData", notificationName: .init("LocalStoreDetectionData"), defaultValue: [])
     var detectionData: [ExposureDetectionData]
 
+    @Persisted(userDefaultsKey: "endOfLifeStatisticsData", notificationName: .init("EndOfLifeStatisticsDataDidChange"), defaultValue: [])
+    var endOfLifeStatisticsData: [EndOfLifeStatistic]
+
     func updateDateLastPerformedExposureDetection() {
         dateLastPerformedExposureDetection = Date()
     }

diff --git a/Koronavilkku/Koronavilkku/SceneDelegate.swift b/Koronavilkku/Koronavilkku/SceneDelegate.swift
@@ -4,33 +4,43 @@ import UIKit
 class SceneDelegate: UIResponder, UIWindowSceneDelegate, UNUserNotificationCenterDelegate {
     var window: UIWindow?
     var activationTask: AnyCancellable?
+    var configurationTask: AnyCancellable?
+    var endOfLifeTask: AnyCancellable?
 
     override init() {
         super.init()
         UNUserNotificationCenter.current().delegate = self
     }
-
+    
     func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
         // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
         // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
         // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
         if let windowScene = scene as? UIWindowScene {
             let window = UIWindow(windowScene: windowScene)
 
-            // Check onboarding status
-            if !LocalStore.shared.isOnboarded {
+            // Set every UILabel automatically respond to Dynamic Type changes
+            UILabel.appearance().adjustsFontForContentSizeCategory = true
+
+            switch true {
+            case Environment.default.exposureRepository.isEndOfLife:
+                window.rootViewController = EndOfLifeViewController()
+
+            case !LocalStore.shared.isOnboarded:
                 window.rootViewController = OnboardingViewController()
-            } else {
+
+            default:
                 window.rootViewController = RootViewController()
             }
+
             self.window = window
             window.makeKeyAndVisible()
 
             // Check if user activity contains browsing action
             if let activity = connectionOptions.userActivities
                 .filter({ $0.activityType == NSUserActivityTypeBrowsingWeb })
                 .first,
-                let code = extractCode(userActivity: activity) {
+               let code = extractCode(userActivity: activity) {
                 openCodeView(using: code)
             }
         }
@@ -52,10 +62,10 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, UNUserNotificationCente
 
     func extractCode(userActivity: NSUserActivity) -> String? {
         guard userActivity.activityType == NSUserActivityTypeBrowsingWeb,
-            let url = userActivity.webpageURL,
-            let components = NSURLComponents(url: url, resolvingAgainstBaseURL: true),
-            let code = components.query,
-            let _ = UInt64(code) else { return nil }
+              let url = userActivity.webpageURL,
+              let components = NSURLComponents(url: url, resolvingAgainstBaseURL: true),
+              let code = components.query,
+              let _ = UInt64(code) else { return nil }
         return code
     }
 
@@ -65,25 +75,42 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, UNUserNotificationCente
         // Release any resources associated with this scene that can be re-created the next time the scene connects.
         // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
     }
-
+    
     func sceneDidBecomeActive(_ scene: UIScene) {
+        let exposureRepository = Environment.default.exposureRepository
+
+        guard !exposureRepository.isEndOfLife else { return }
+
+        // Detect when the end of life has been reached an update the UI accordingly
+        endOfLifeTask = exposureRepository.onEndOfLife
+            .receive(on: RunLoop.main)
+            .sink { _ in
+                self.window?.rootViewController = EndOfLifeViewController()
+            }
+
+        // Fetch configuration to refresh the EFGS country list and end of life data
+        configurationTask = exposureRepository.getConfiguration()
+            .sink { _ in } receiveValue: { config in
+                Environment.default.efgsRepository.updateCountryList(from: config)
+            }
+
         activationTask = ExposureManagerProvider.shared.activated.sink { activated in
-            Environment.default.exposureRepository.refreshStatus()
+            exposureRepository.refreshStatus()
         }
-
-        Environment.default.exposureRepository.removeExpiredExposures()
-    }
 
+        exposureRepository.removeExpiredExposures()
+    }
+
     func sceneWillResignActive(_ scene: UIScene) {
         // Called when the scene will move from an active state to an inactive state.
         // This may occur due to temporary interruptions (ex. an incoming phone call).
     }
-
+    
     func sceneWillEnterForeground(_ scene: UIScene) {
         // Called as the scene transitions from the background to the foreground.
         // Use this method to undo the changes made on entering the background.
     }
-
+    
     func sceneDidEnterBackground(_ scene: UIScene) {
         // Called as the scene transitions from the foreground to the background.
         // Use this method to save data, release shared resources, and store enough scene-specific state information

diff --git a/Koronavilkku/Koronavilkku/Tools/BackgroundTask.swift b/Koronavilkku/Koronavilkku/Tools/BackgroundTask.swift
@@ -84,7 +84,11 @@ final class BackgroundTaskForNotifications: BackgroundTask {
         Log.d("Register background task for notifications")
         BGTaskScheduler.shared.register(forTaskWithIdentifier: identifier, using: .main) { task in
             Log.d("Run background task for notifications")
-
+
+            guard !Environment.default.exposureRepository.isEndOfLife else {
+                return task.setTaskCompleted(success: true)
+            }
+
             // reschedule first to prevent unexpected errors from breaking the chain
             self.schedule()
 
@@ -207,6 +211,10 @@ fileprivate final class BackgroundTaskForDummyPosting: BackgroundTask {
         BGTaskScheduler.shared.register(forTaskWithIdentifier: identifier, using: .main) { task in
             Log.d("Run background task for dummy posting")
 
+            guard !Environment.default.exposureRepository.isEndOfLife else {
+                return task.setTaskCompleted(success: true)
+            }
+
             // reschedule first to prevent unexpected errors from breaking the chain
             self.schedule()
 

diff --git a/Koronavilkku/Koronavilkku/Tools/LivePreview.swift b/Koronavilkku/Koronavilkku/Tools/LivePreview.swift
@@ -48,6 +48,9 @@ extension Environment {
         }
 
         struct PreviewExposureRepository: ExposureRepository {
+            var isEndOfLife = false
+            var onEndOfLife = Empty<Void, Never>().eraseToAnyPublisher()
+
             let state: PreviewState
 
             func getExposureNotifications() -> AnyPublisher<[ExposureNotification], Never> {

diff --git a/Koronavilkku/Koronavilkku/Tools/Translation.swift b/Koronavilkku/Koronavilkku/Tools/Translation.swift
@@ -152,4 +152,7 @@ enum Translation: String, Localizable {
 
     case ExposureNotificationTitle
     case ExposureNotificationBody
+
+    case EndOfLifeTitle
+    case EndOfLifeMessage
 }
diff --git a/Koronavilkku/Koronavilkku/UI/Components/StatisticsCard.swift b/Koronavilkku/Koronavilkku/UI/Components/StatisticsCard.swift
@@ -0,0 +1,37 @@
+import UIKit
+
+final class StatisticsCard: CardElement {
+    init(title: String, body: String) {
+        super.init()
+
+        let titleView = UILabel(label: title, font: .heading2, color: .Primary.blue)
+        titleView.numberOfLines = 0
+
+        let bodyView = UILabel(label: body, font: .bodySmall, color: .Greyscale.black)
+        bodyView.numberOfLines = 0
+
+        if #available(iOS 14.0, *) {
+            titleView.lineBreakStrategy = .hangulWordPriority
+            bodyView.lineBreakStrategy = .hangulWordPriority
+        }
+
+        addSubview(titleView)
+        addSubview(bodyView)
+
+        titleView.snp.makeConstraints { make in
+            make.top.left.right.equalToSuperview().inset(20)
+        }
+
+        bodyView.snp.makeConstraints { make in
+            make.top.equalTo(titleView.snp.bottom)
+            make.bottom.left.right.equalToSuperview().inset(20)
+        }
+
+        isAccessibilityElement = true
+        accessibilityLabel = "\(title) \(body)"
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}