Ensure the user sees the experience upgrade

Don't mark it as seen until it is dismissed.

// FREEBIE

Signal/src/ViewControllers/ExperienceUpgradesPageViewController.swift

@@ -490,12 +490,15 @@ class ExperienceUpgradesPageViewController: OWSViewController, UIPageViewControl
 
     let pageViewController: UIPageViewController
 
+    let editingDBConnection: YapDatabaseConnection
+
     // MARK: - Initializers
 
     required init(experienceUpgrades: [ExperienceUpgrade]) {
         self.experienceUpgrades = experienceUpgrades
 
         setPageControlAppearance()
+        self.editingDBConnection = TSStorageManager.shared().newDatabaseConnection()
         self.pageViewController = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
         super.init(nibName: nil, bundle: nil)
         self.pageViewController.dataSource = self
@@ -505,12 +508,7 @@ class ExperienceUpgradesPageViewController: OWSViewController, UIPageViewControl
 
     @available(*, unavailable, message:"unavailable, use initWithExperienceUpgrade instead")
     required init?(coder aDecoder: NSCoder) {
-        assert(false)
-        // This should never happen, but so as not to explode we give some bogus data
-        self.experienceUpgrades = [ExperienceUpgrade()]
-        self.pageViewController = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
-        super.init(coder: aDecoder)
-        self.pageViewController.dataSource = self
+        fatalError("unimplemented")
     }
 
     // MARK: - View lifecycle
@@ -679,6 +677,16 @@ class ExperienceUpgradesPageViewController: OWSViewController, UIPageViewControl
         allViewControllers.append(viewController)
     }
 
+    override func dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
+        // Blocking write before dismiss, to be sure they're marked as complete
+        // before HomeView.didAppear is re-fired.
+        self.editingDBConnection.readWrite { transaction in
+            Logger.info("\(self.logTag) marking all upgrades as seen.")
+            ExperienceUpgradeFinder.shared.markAllAsSeen(transaction: transaction)
+        }
+        super.dismiss(animated: flag, completion: completion)
+    }
+
     func didTapDismissButton(sender: UIButton) {
         Logger.debug("\(TAG) in \(#function)")
         self.dismiss(animated: true)

Signal/src/ViewControllers/HomeViewController.m

@@ -47,7 +47,6 @@ typedef NS_ENUM(NSInteger, CellState) { kArchiveState, kInboxState };
 @property (nonatomic) UISegmentedControl *segmentedControl;
 @property (nonatomic) id previewingContext;
 @property (nonatomic) NSSet<NSString *> *blockedPhoneNumberSet;
-@property (nonatomic) BOOL hasShownAnyUnseenUpgradeExperiences;
 
 @property (nonatomic) BOOL isViewVisible;
 @property (nonatomic) BOOL isAppInBackground;
@@ -291,16 +290,7 @@ typedef NS_ENUM(NSInteger, CellState) { kArchiveState, kInboxState };
 {
     [super viewDidAppear:animated];
 
-    // Keep in mind viewDidAppear is called while the app is in the background if the app was
-    // launched by a voip notification. This is fine - it will remain visible to the user
-    // when they eventually launch the app, but we shouldn't make any changes assuming
-    // the user has *seen* the upgrade experience at this point.
-    if (!self.hasShownAnyUnseenUpgradeExperiences) {
-        dispatch_async(dispatch_get_main_queue(), ^{
-            [self displayAnyUnseenUpgradeExperience];
-            self.hasShownAnyUnseenUpgradeExperiences = YES;
-        });
-    }
+    [self displayAnyUnseenUpgradeExperience];
 }
 
 - (void)updateBarButtonItems
@@ -535,21 +525,12 @@ typedef NS_ENUM(NSInteger, CellState) { kArchiveState, kInboxState };
     OWSAssertIsOnMainThread();
 
     __block NSArray<ExperienceUpgrade *> *unseenUpgrades;
-    [self.editingDbConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
+    [self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
         unseenUpgrades = [ExperienceUpgradeFinder.sharedManager allUnseenWithTransaction:transaction];
     }];
     return unseenUpgrades;
 }
 
-- (void)markAllUpgradeExperiencesAsSeen
-{
-    OWSAssertIsOnMainThread();
-
-    [self.editingDbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
-        [ExperienceUpgradeFinder.sharedManager markAllAsSeenWithTransaction:transaction];
-    }];
-}
-
 - (void)displayAnyUnseenUpgradeExperience
 {
     OWSAssertIsOnMainThread();
@@ -559,11 +540,7 @@ typedef NS_ENUM(NSInteger, CellState) { kArchiveState, kInboxState };
     if (unseenUpgrades.count > 0) {
         ExperienceUpgradesPageViewController *experienceUpgradeViewController =
             [[ExperienceUpgradesPageViewController alloc] initWithExperienceUpgrades:unseenUpgrades];
-        [self presentViewController:experienceUpgradeViewController
-                           animated:YES
-                         completion:^{
-                             [self markAllUpgradeExperiencesAsSeen];
-                         }];
+        [self presentViewController:experienceUpgradeViewController animated:YES completion:nil];
     } else if (!self.hasBeenPresented && [ProfileViewController shouldDisplayProfileViewOnLaunch]) {
         [ProfileViewController presentForUpgradeOrNag:self];
     } else {