feat: Add server request to register in-app purchase

Resolves: https://gitlab.steamware.net/eqn/eqn.ios/-/issues/29

Sources/Earthquake Network/Costanti.h

@@ -35,6 +35,8 @@ static NSString * const EQNServerUrlDownloadRetiSismiche = @"https://srv.earthqu
 static NSString * const EQNServerUrlOfferTimeRemaining = @"https://srv.earthquakenetwork.it/distquake_download_offer_time_remaining.php";
 /// Recupera il numero di sottoscrizioni ancora disponibili per ogni prodotto
 static NSString * const EQNServerUrlAvailableSubscriptionsCounter = @"https://srv.earthquakenetwork.it/distquake_count_top_redis.php";
+/// Registra l'abbonamento acquistato dall'utente
+static NSString * const EQNServerUrlRegisterSubscription = @"https://srv.earthquakenetwork.it/distquake_upload_subscription.php";
 /// Carica le impostazioni delle notifiche definite dall'utente
 static NSString * const EQNServerUrlUploadSettings = @"https://srv.earthquakenetwork.it/distquake_upload_settings_ios.php";
 // URL EQNTipoChiamataRegistrazione server
@@ -132,6 +134,7 @@ typedef NS_ENUM(NSInteger, EQNTipoChiamata) {
     EQNTipoChiamataCommentoTerremoto,
     EQNTipoChiamataImpostazioniNotifiche,
     EQNTipoChiamataOfferTimeRemaining,
+    EQNTipoChiamataRegisterSubscription,
     EQNTipoChiamataAlertPushTest,
     EQNTipoChiamataAlertSimulator
 };

Sources/Earthquake Network/Models/IAPHelper.swift

@@ -174,6 +174,9 @@ extension IAPHelper: SKPaymentTransactionObserver {
         print("[IAPHelper] Handle purchased transaction (product: \(transaction.payment.productIdentifier))")
         deliverPurchaseNotificationFor(identifier: transaction.payment.productIdentifier)
         SKPaymentQueue.default().finishTransaction(transaction)
+        
+        // register subscription
+        serverPurchaseRegistration(for: transaction.payment.productIdentifier, transactionId:transaction.transactionIdentifier)
     }
     
     private func handleRestored(transaction: SKPaymentTransaction) {
@@ -185,6 +188,9 @@ extension IAPHelper: SKPaymentTransactionObserver {
         print("[IAPHelper] Handle restored transaction (product: \(productIdentifier))")
         deliverPurchaseNotificationFor(identifier: productIdentifier)
         SKPaymentQueue.default().finishTransaction(transaction)
+        
+        // register subscription
+        serverPurchaseRegistration(for: productIdentifier, transactionId: transaction.transactionIdentifier)
     }
     
     private func handleFailed(transaction: SKPaymentTransaction) {
@@ -206,4 +212,17 @@ extension IAPHelper: SKPaymentTransactionObserver {
         UserDefaults.standard.set(true, forKey: identifier)
         NotificationCenter.default.post(name: .IAPHelperPurchaseNotification, object: identifier)
     }
+    
+    private func serverPurchaseRegistration(for productId: String, transactionId: String?) {
+        let idTransaction = transactionId ?? "NOT_AVAILABLE"
+        
+        let url = EQNGeneratoreURLServer.urlRegisterSubscription(forProductId: productId, transactionId: idTransaction)
+        ServerRequest.default().inviaInformazioniAlServer(with: url, richiesta: .registerSubscription) { (response) in
+            // nope
+            print("[IAPHelper] Subscription registered with server")
+        } failure: { (error) in
+            // nope
+            print("[IAPHelper] Error when registering subscription (error: \(String(describing: error?.localizedDescription))")
+        }
+    }
 }

Sources/Earthquake Network/Server Requests/EQNGeneratoreURLServer.h

@@ -22,6 +22,7 @@ NS_ASSUME_NONNULL_BEGIN
 + (NSURL *)urlInvioCommentoTerremoto:(NSString *)commento codeMessage:(NSString *)code;
 + (NSURL *)urlInvioImpostazioniNotifiche;
 + (NSURL *)urlDownloadOfferTimeRemaining;
++ (NSURL *)urlRegisterSubscriptionForProductId:(NSString *)productId transactionId:(NSString *)transactionId;
 + (NSURL *)urlAlertPushTest;
 + (NSURL *)urlAlertSimulator;
 

Sources/Earthquake Network/Server Requests/EQNGeneratoreURLServer.m

@@ -243,6 +243,13 @@
     return [NSURL URLWithString:stringUrl];
 }
 
++ (NSURL *)urlRegisterSubscriptionForProductId:(NSString *)productId transactionId:(NSString *)transactionId
+{
+    NSString *walletSub = @""; // codice associato all'acquisto che conosce anche l'utente (se esiste)
+    NSString *stringUrl = [NSString stringWithFormat:@"%@?u_id=%@&token_sub=%@&wallet_sub=%@&sku=%@&ios=1", EQNServerUrlRegisterSubscription, [EQNUser defaultUser].user_ID, transactionId, walletSub, productId];
+    return [NSURL URLWithString:stringUrl];
+}
+
 + (NSURL *)urlAlertPushTest
 {
     EQNGenericValue *radius = [EQNData raggioSismaFor:[EQNAllertaSismica sharedInstance].raggioSismiLievi];

Sources/Earthquake Network/Server Requests/ServerRequest.m

@@ -140,6 +140,7 @@
                     case EQNTipoChiamataCalibrazione:
                     case EQNTipoChiamataImpostazioniNotifiche:
                     case EQNTipoChiamataAlertSimulator:
+                    case EQNTipoChiamataRegisterSubscription:
                         onSuccess(newStr);
                     default:
                         // don't call the callback