Fixes deep links not working when app is not running

Delta/AppDelegate.swift

@@ -19,6 +19,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate
     var window: UIWindow?
     
     private let deepLinkController = DeepLinkController()
+    private var appLaunchDeepLink: DeepLink?
 
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
     {
@@ -40,10 +41,13 @@ class AppDelegate: UIResponder, UIApplicationDelegate
         // Controllers
         ExternalGameControllerManager.shared.startMonitoring()
         
+        // Notifications
+        NotificationCenter.default.addObserver(self, selector: #selector(AppDelegate.databaseManagerDidStart(_:)), name: DatabaseManager.didStartNotification, object: DatabaseManager.shared)
+        
         // Deep Links
         if let shortcut = launchOptions?[.shortcutItem] as? UIApplicationShortcutItem
         {
-            self.deepLinkController.handle(.shortcut(shortcut))
+            self.appLaunchDeepLink = .shortcut(shortcut)
             
             // false = we handled the deep link, so no need to call delegate method separately.
             return false
@@ -164,3 +168,15 @@ extension AppDelegate
     }
 }
 
+private extension AppDelegate
+{
+    @objc func databaseManagerDidStart(_ notification: Notification)
+    {
+        guard let deepLink = self.appLaunchDeepLink else { return }
+        
+        DispatchQueue.main.async {
+            self.deepLinkController.handle(deepLink)
+        }
+    }
+}
+

Delta/Database/DatabaseManager.swift

@@ -15,6 +15,11 @@ import Harmony
 import Roxas
 import ZIPFoundation
 
+extension DatabaseManager
+{
+    static let didStartNotification = Notification.Name("databaseManagerDidStartNotification")
+}
+
 extension DatabaseManager
 {
     enum ImportError: Error, Hashable
@@ -97,6 +102,9 @@ extension DatabaseManager
                 
                 self.prepareDatabase {
                     self.isStarted = true
+                    
+                    NotificationCenter.default.post(name: DatabaseManager.didStartNotification, object: self)
+                    
                     completionHandler(nil)
                 }
             }

Delta/Launch/LaunchViewController.swift

@@ -105,7 +105,9 @@ extension LaunchViewController
             
             UIView.transition(with: self.view, duration: 0.3, options: [.transitionCrossDissolve], animations: {
                 showGameViewController()
-            }, completion: nil)
+            }) { (finished) in
+                self.gameViewController.startEmulation()
+            }
         }
         else
         {