Purchase on donation selection

Passepartout-iOS/Scenes/Organizer/DonationViewController.swift

@@ -56,6 +56,7 @@ class DonationViewController: UITableViewController, TableModelHost {
         model.add(.oneTime)
 //        model.add(.recurring)
         model.setHeader(L10n.Donation.Sections.OneTime.header, for: .oneTime)
+        model.setFooter(L10n.Donation.Sections.OneTime.footer, for: .oneTime)
 //        model.setHeader(L10n.Donation.Sections.Recurring.header, for: .recurring)
         model.set(list, in: .oneTime)
     }
@@ -89,6 +90,10 @@ class DonationViewController: UITableViewController, TableModelHost {
         return model.header(for: section)
     }
     
+    override func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
+        return model.footer(for: section)
+    }
+    
     override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
         return model.count(for: section)
     }
@@ -103,6 +108,34 @@ class DonationViewController: UITableViewController, TableModelHost {
         cell.rightText = product.localizedPrice
         return cell
     }
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        tableView.deselectRow(at: indexPath, animated: true)
+        
+        let productId = productIdentifier(at: indexPath)
+        guard let product = productsByIdentifier[productId] else {
+            fatalError("Row with no associated product")
+        }
+        InAppHelper.shared.purchase(product: product) {
+            self.handlePurchase(result: $0, error: $1)
+        }
+    }
+
+    private func handlePurchase(result: InAppHelper.PurchaseResult, error: Error?) {
+        let alert: UIAlertController
+        switch result {
+        case .cancelled:
+            return
+
+        case .success:
+            alert = Macros.alert(title, L10n.Donation.Alerts.Purchase.success)
+
+        case .failure:
+            alert = Macros.alert(title, L10n.Donation.Alerts.Purchase.failure(error?.localizedDescription ?? ""))
+        }
+        alert.addCancelAction(L10n.Global.ok)
+        present(alert, animated: true, completion: nil)
+    }
 }
 
 extension DonationViewController {

Passepartout/Resources/en.lproj/Localizable.strings

@@ -249,7 +249,10 @@
 
 "donation.title" = "Donate";
 "donation.sections.one_time.header" = "One time";
-"donation.sections.recurring.header" = "Recurring";
+"donation.sections.one_time.footer" = "If you want to display gratitude for my free work, here are a couple amounts you can donate instantly.\n\nYou will only be charged once per donation, and you can donate multiple times.";
+//"donation.sections.recurring.header" = "Recurring";
+"donation.alerts.purchase.success" = "THANK YOU!\n\nThis means a lot to me and I really hope you keep using and promoting this app.";
+"donation.alerts.purchase.failure" = "Unable to perform the donation. %@";
 
 "share.message" = "Passepartout is an user-friendly, open source OpenVPN client for iOS and macOS";
 

Passepartout/Sources/SwiftGen+Strings.swift

@@ -298,15 +298,23 @@ public enum L10n {
   public enum Donation {
     /// Donate
     public static let title = L10n.tr("Localizable", "donation.title")
+    public enum Alerts {
+      public enum Purchase {
+        /// Unable to perform the donation. %@
+        public static func failure(_ p1: String) -> String {
+          return L10n.tr("Localizable", "donation.alerts.purchase.failure", p1)
+        }
+        /// THANK YOU!\n\nThis means a lot to me and I really hope you keep using and promoting this app.
+        public static let success = L10n.tr("Localizable", "donation.alerts.purchase.success")
+      }
+    }
     public enum Sections {
       public enum OneTime {
+        /// If you want to display gratitude for my free work, here are a couple amounts you can donate instantly.\n\nYou will only be charged once per donation, and you can donate multiple times.
+        public static let footer = L10n.tr("Localizable", "donation.sections.one_time.footer")
         /// One time
         public static let header = L10n.tr("Localizable", "donation.sections.one_time.header")
       }
-      public enum Recurring {
-        /// Recurring
-        public static let header = L10n.tr("Localizable", "donation.sections.recurring.header")
-      }
     }
   }