Adding method to configure payment blocks

Author: ducker

Classes/SCPStoreKitManager.h

@@ -28,6 +28,15 @@ typedef void(^PaymentTransactionStateRestored)(NSArray *transactions);
 
 - (void)requestProductsWithIdentifiers:(NSSet *)productsSet productsReturnedSuccessfully:(ProductsReturnedSuccessfully)productsReturnedSuccessfullyBlock invalidProducts:(InvalidProducts)invalidProductsBlock failure:(Failure)failureBlock;
 
+- (void)configurePaymentTransactionStatePurchasing:(PaymentTransactionStatePurchasing)paymentTransactionStatePurchasingBlock paymentTransactionStatePurchased:(PaymentTransactionStatePurchased)paymentTransactionStatePurchasedBlock paymentTransactionStateFailed:(PaymentTransactionStateFailed)paymentTransactionStateFailedBlock paymentTransactionStateRestored:(PaymentTransactionStateRestored)paymentTransactionStateRestoredBlock failure:(Failure)failureBlock;
+
+/**
+ *  Only if configure payment transaction blocks before calling that method
+ *
+ *  @param product the product to buy
+ */
+- (void)requestPaymentForProduct:(SKProduct *)product;
+
 - (void)requestPaymentForProduct:(SKProduct *)product paymentTransactionStatePurchasing:(PaymentTransactionStatePurchasing)paymentTransactionStatePurchasingBlock paymentTransactionStatePurchased:(PaymentTransactionStatePurchased)paymentTransactionStatePurchasedBlock paymentTransactionStateFailed:(PaymentTransactionStateFailed)paymentTransactionStateFailedBlock paymentTransactionStateRestored:(PaymentTransactionStateRestored)paymentTransactionStateRestoredBlock failure:(Failure)failureBlock;
 
 - (void)restorePurchasesPaymentTransactionStateRestored:(PaymentTransactionStateRestored)paymentTransactionStateRestoredBlock paymentTransactionStateFailed:(PaymentTransactionStateFailed)paymentTransactionStateFailedBlock failure:(Failure)failureBlock;

Classes/SCPStoreKitManager.m

@@ -82,6 +82,34 @@ - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProdu
 	}
 }
 
+- (void)configurePaymentTransactionStatePurchasing:(PaymentTransactionStatePurchasing)paymentTransactionStatePurchasingBlock paymentTransactionStatePurchased:(PaymentTransactionStatePurchased)paymentTransactionStatePurchasedBlock paymentTransactionStateFailed:(PaymentTransactionStateFailed)paymentTransactionStateFailedBlock paymentTransactionStateRestored:(PaymentTransactionStateRestored)paymentTransactionStateRestoredBlock failure:(Failure)failureBlock {
+    
+    self.paymentTransactionStatePurchasingBlock = paymentTransactionStatePurchasingBlock;
+    self.paymentTransactionStatePurchasedBlock = paymentTransactionStatePurchasedBlock;
+    self.paymentTransactionStateFailedBlock = paymentTransactionStateFailedBlock;
+    self.paymentTransactionStateRestoredBlock = paymentTransactionStateRestoredBlock;
+    self.failureBlock = failureBlock;
+    
+    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
+}
+
+- (void)requestPaymentForProduct:(SKProduct *)product {
+    SKPayment *payment = [SKPayment paymentWithProduct:product];
+    
+    if([SKPaymentQueue canMakePayments])
+    {
+        [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
+        [[SKPaymentQueue defaultQueue] addPayment:payment];
+    }
+    else
+    {
+        if(self.failureBlock)
+        {
+            self.failureBlock([NSError errorWithDomain:SCPStoreKitDomain code:SCPErrorCodePaymentQueueCanNotMakePayments errorDescription:@"SKPaymentQueue can not make payments" errorFailureReason:@"Has the SKPaymentQueue got any uncompleted purchases?" errorRecoverySuggestion:@"Finish all transactions"]);
+        }
+    }
+}
+
 - (void)requestPaymentForProduct:(SKProduct *)product paymentTransactionStatePurchasing:(PaymentTransactionStatePurchasing)paymentTransactionStatePurchasingBlock paymentTransactionStatePurchased:(PaymentTransactionStatePurchased)paymentTransactionStatePurchasedBlock paymentTransactionStateFailed:(PaymentTransactionStateFailed)paymentTransactionStateFailedBlock paymentTransactionStateRestored:(PaymentTransactionStateRestored)paymentTransactionStateRestoredBlock failure:(Failure)failureBlock
 {
 	self.paymentTransactionStatePurchasingBlock = paymentTransactionStatePurchasingBlock;