Add promoting alert for subreddit

Passepartout-iOS/Global/Macros.swift

@@ -58,6 +58,13 @@ extension UIAlertController {
         }
     }
     
+    func addAction(_ title: String, handler: @escaping () -> Void) {
+        let action = UIAlertAction(title: title, style: .default) { (action) in
+            handler()
+        }
+        addAction(action)
+    }
+    
     func addDestructiveAction(_ title: String, handler: @escaping () -> Void) {
         let action = UIAlertAction(title: title, style: .destructive) { (action) in
             handler()

Passepartout-iOS/Scenes/Organizer/OrganizerViewController.swift

@@ -35,7 +35,9 @@ class OrganizerViewController: UITableViewController, TableModelHost {
     private var hostProfiles: [HostConnectionProfile] = []
     
     private var availableProviderNames: [Infrastructure.Name]?
-    
+
+    private var didShowSubreddit = false
+
     // MARK: TableModelHost
 
     let model: TableModel<SectionType, RowType> = {
@@ -103,6 +105,25 @@ class OrganizerViewController: UITableViewController, TableModelHost {
         service.delegate = self
     }
     
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+
+        if !didShowSubreddit && !TransientStore.shared.didHandleSubreddit {
+            didShowSubreddit = true
+            
+            let alert = Macros.alert(L10n.About.Cells.DiscussReddit.caption, L10n.Reddit.message)
+            alert.addDefaultAction(L10n.Reddit.Buttons.subscribe) {
+                TransientStore.shared.didHandleSubreddit = true
+                self.subscribeSubreddit()
+            }
+            alert.addAction(L10n.Reddit.Buttons.never) {
+                TransientStore.shared.didHandleSubreddit = true
+            }
+            alert.addCancelAction(L10n.Reddit.Buttons.remind)
+            present(alert, animated: true, completion: nil)
+        }
+    }
+    
     override func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
         if let cell = sender as? UITableViewCell, let indexPath = tableView.indexPath(for: cell) {
             return model.row(at: indexPath) == .profile
@@ -227,6 +248,10 @@ class OrganizerViewController: UITableViewController, TableModelHost {
         alert.addCancelAction(L10n.Global.cancel)
         present(alert, animated: true, completion: nil)
     }
+    
+    private func subscribeSubreddit() {
+        UIApplication.shared.open(AppConstants.URLs.subreddit, options: [:], completionHandler: nil)
+    }
 }
 
 // MARK: -

Passepartout/Resources/en.lproj/Localizable.strings

@@ -27,6 +27,11 @@
 "global.cancel" = "Cancel";
 "global.next" = "Next";
 
+"reddit.message" = "Did you know that Passepartout has a subreddit? Subscribe for updates or to discuss issues, features, new platforms or whatever you like.\n\nIt's also a great way to show you care about this project.";
+"reddit.buttons.subscribe" = "Subscribe now!";
+"reddit.buttons.remind" = "Remind me later";
+"reddit.buttons.never" = "Don't ask again";
+
 "organizer.sections.providers.header" = "Networks";
 "organizer.sections.providers.footer" = "Here you find a few public infrastructures offering preset configuration profiles.";
 "organizer.sections.hosts.header" = "Hosts";

Passepartout/Sources/Model/TransientStore.swift

@@ -29,12 +29,25 @@ import SwiftyBeaver
 private let log = SwiftyBeaver.self
 
 class TransientStore {
+    private struct Keys {
+        static let didHandleSubreddit = "DidHandleSubreddit"
+    }
+    
     static let shared = TransientStore()
     
     private let servicePath: URL
     
     let service: ConnectionService
     
+    var didHandleSubreddit: Bool {
+        get {
+            return UserDefaults.standard.bool(forKey: Keys.didHandleSubreddit)
+        }
+        set {
+            UserDefaults.standard.set(newValue, forKey: Keys.didHandleSubreddit)
+        }
+    }
+
     private init() {
         servicePath = FileManager.default.userURL(
             for: .documentDirectory,

Passepartout/Sources/SwiftGen+Strings.swift

@@ -395,6 +395,20 @@ internal enum L10n {
     }
   }
 
+  internal enum Reddit {
+    /// Did you know that Passepartout has a subreddit? Subscribe for updates or to discuss issues, features, new platforms or whatever you like.\n\nIt's also a great way to show you care about this project.
+    internal static let message = L10n.tr("Localizable", "reddit.message")
+
+    internal enum Buttons {
+      /// Don't ask again
+      internal static let never = L10n.tr("Localizable", "reddit.buttons.never")
+      /// Remind me later
+      internal static let remind = L10n.tr("Localizable", "reddit.buttons.remind")
+      /// Subscribe now!
+      internal static let subscribe = L10n.tr("Localizable", "reddit.buttons.subscribe")
+    }
+  }
+
   internal enum Service {
 
     internal enum Alerts {