Introductory Price parsing (#186)

InAppUtils.xcodeproj/project.pbxproj

@@ -11,6 +11,7 @@
 		46E694381B289730000B634E /* InAppUtils.m in Sources */ = {isa = PBXBuildFile; fileRef = 46E694371B289730000B634E /* InAppUtils.m */; };
 		46E6943E1B289730000B634E /* libInAppUtils.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 46E694321B289730000B634E /* libInAppUtils.a */; };
 		46E694841B28E42F000B634E /* SKProduct+StringPrice.m in Sources */ = {isa = PBXBuildFile; fileRef = 46E694831B28E42F000B634E /* SKProduct+StringPrice.m */; };
+		ACABFCCA227B396500DE33B7 /* SKProductDiscount+StringPrice.m in Sources */ = {isa = PBXBuildFile; fileRef = ACABFCC8227B396500DE33B7 /* SKProductDiscount+StringPrice.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -44,6 +45,8 @@
 		46E694431B289730000B634E /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		46E694821B28E404000B634E /* SKProduct+StringPrice.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "SKProduct+StringPrice.h"; sourceTree = "<group>"; };
 		46E694831B28E42F000B634E /* SKProduct+StringPrice.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "SKProduct+StringPrice.m"; sourceTree = "<group>"; };
+		ACABFCC8227B396500DE33B7 /* SKProductDiscount+StringPrice.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "SKProductDiscount+StringPrice.m"; sourceTree = "<group>"; };
+		ACABFCC9227B396500DE33B7 /* SKProductDiscount+StringPrice.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "SKProductDiscount+StringPrice.h"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -86,6 +89,8 @@
 		46E694341B289730000B634E /* InAppUtils */ = {
 			isa = PBXGroup;
 			children = (
+				ACABFCC9227B396500DE33B7 /* SKProductDiscount+StringPrice.h */,
+				ACABFCC8227B396500DE33B7 /* SKProductDiscount+StringPrice.m */,
 				46E694351B289730000B634E /* InAppUtils.h */,
 				46E694371B289730000B634E /* InAppUtils.m */,
 				46E694821B28E404000B634E /* SKProduct+StringPrice.h */,
@@ -170,6 +175,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 			);
 			mainGroup = 46E694291B289730000B634E;
@@ -198,6 +204,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				ACABFCCA227B396500DE33B7 /* SKProductDiscount+StringPrice.m in Sources */,
 				46E694841B28E42F000B634E /* SKProduct+StringPrice.m in Sources */,
 				46E694381B289730000B634E /* InAppUtils.m in Sources */,
 			);

InAppUtils/InAppUtils.m

@@ -3,6 +3,7 @@
 #import <React/RCTLog.h>
 #import <React/RCTUtils.h>
 #import "SKProduct+StringPrice.h"
+#import "SKProductDiscount+StringPrice.h"
 
 @implementation InAppUtils
 {
@@ -213,6 +214,7 @@ - (void)productsRequest:(SKProductsRequest *)request
         products = [NSMutableArray arrayWithArray:response.products];
         NSMutableArray *productsArrayForJS = [NSMutableArray array];
         for(SKProduct *item in response.products) {
+            NSDictionary *introductoryPrice = [InAppUtils parseIntroductoryPrice: item];
             NSDictionary *product = @{
                                       @"identifier": item.productIdentifier,
                                       @"price": item.price,
@@ -223,6 +225,7 @@ - (void)productsRequest:(SKProductsRequest *)request
                                       @"downloadable": item.downloadable ? @"true" : @"false" ,
                                       @"description": item.localizedDescription ? item.localizedDescription : @"",
                                       @"title": item.localizedTitle ? item.localizedTitle : @"",
+                                      @"introductoryPrice": (introductoryPrice == nil) ? [NSNull null] : introductoryPrice,
                                       };
             [productsArrayForJS addObject:product];
         }
@@ -265,6 +268,70 @@ - (void)dealloc
     [[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
 }
 
+#pragma mark Static
+
++ (NSDictionary *)parseIntroductoryPrice: (SKProduct *)product {
+    if(@available(iOS 11.2, *)) {
+        if (product != nil && product.introductoryPrice != nil) {
+            // paymentMode: Returning as string for ease of use and code resilience
+            NSString *paymentMode;
+            switch (product.introductoryPrice.paymentMode) {
+                case SKProductDiscountPaymentModeFreeTrial:
+                    paymentMode = @"freeTrial";
+                    break;
+                case SKProductDiscountPaymentModePayAsYouGo:
+                    paymentMode = @"payAsYouGo";
+                    break;
+                case SKProductDiscountPaymentModePayUpFront:
+                    paymentMode = @"payUpFront";
+                    break;
+                default:
+                    paymentMode = @"unavailable";
+                    break;
+            }
+
+            // subscriptionPeriod: Returning as Dictionary { unit: NSString, numberOfUnits: NSNumber }
+            NSString *subscriptionPeriodUnit;
+            switch (product.introductoryPrice.subscriptionPeriod.unit) {
+                case SKProductPeriodUnitDay:
+                    subscriptionPeriodUnit = @"day";
+                    break;
+                case SKProductPeriodUnitWeek:
+                    subscriptionPeriodUnit = @"week";
+                    break;
+                case SKProductPeriodUnitMonth:
+                    subscriptionPeriodUnit = @"month";
+                    break;
+                case SKProductPeriodUnitYear:
+                    subscriptionPeriodUnit = @"year";
+                    break;
+                default:
+                    subscriptionPeriodUnit = @"unavailable";
+                    break;
+            }
+
+            NSDictionary *subscriptionPeriod = @{
+                                                 @"unit": subscriptionPeriodUnit,
+                                                 @"numberOfUnits": [[NSNumber alloc] initWithLong:product.introductoryPrice.subscriptionPeriod.numberOfUnits],
+                                                 };
+
+            NSDictionary *introductoryPrice = @{
+                                                @"price": product.introductoryPrice.price,
+                                                @"currencySymbol": [product.introductoryPrice.priceLocale objectForKey:NSLocaleCurrencySymbol],
+                                                @"currencyCode": [product.introductoryPrice.priceLocale objectForKey:NSLocaleCurrencyCode],
+                                                @"countryCode": [product.introductoryPrice.priceLocale objectForKey: NSLocaleCountryCode],
+                                                @"priceString": product.introductoryPrice.priceString,
+                                                @"numberOfPeriods": [[NSNumber alloc] initWithLong:product.introductoryPrice.numberOfPeriods],
+                                                @"paymentMode": paymentMode,
+                                                @"subscriptionPeriod": subscriptionPeriod,
+                                                };
+            return introductoryPrice;
+        }
+    }
+
+    return nil;
+}
+
 #pragma mark Private
 
 static NSString *RCTKeyForInstance(id instance)

InAppUtils/SKProduct+StringPrice.m

@@ -1,6 +1,5 @@
 #import "SKProduct+StringPrice.h"
 
-
 @implementation SKProduct (StringPrice)
 
 - (NSString *)priceString {

InAppUtils/SKProductDiscount+StringPrice.h

@@ -0,0 +1,8 @@
+#import <Foundation/Foundation.h>
+#import <StoreKit/StoreKit.h>
+
+@interface SKProductDiscount (StringPrice)
+
+@property (nonatomic, readonly) NSString *priceString;
+
+@end

InAppUtils/SKProductDiscount+StringPrice.m

@@ -0,0 +1,14 @@
+#import "SKProductDiscount+StringPrice.h"
+
+@implementation SKProductDiscount (StringPrice)
+
+- (NSString *)priceString {
+    NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
+    formatter.formatterBehavior = NSNumberFormatterBehavior10_4;
+    formatter.numberStyle = NSNumberFormatterCurrencyStyle;
+    formatter.locale = self.priceLocale;
+
+    return [formatter stringFromNumber:self.price];
+}
+
+@end