feat: Add custom attributes to commerce events (#24)

Author: BrandonStalnaker

mParticle-Google-Analytics-Firebase/MPKitFirebaseAnalytics.m

@@ -116,14 +116,14 @@ - (MPKitExecStatus *)routeCommerceEvent:(MPCommerceEvent *)commerceEvent {
             eventName = kFIREventViewPromotion;
         }
         for (MPPromotion *promotion in commerceEvent.promotionContainer.promotions) {
-            parameters = [self getParameterForPromotionCommerceEvent:promotion];
+            parameters = [self getParameterForPromotion:promotion commerceEvent:commerceEvent];
 
             [FIRAnalytics logEventWithName:eventName parameters:parameters];
         }
     } else if (commerceEvent.impressions) {
         eventName = kFIREventViewItemList;
         for (NSString *impressionKey in commerceEvent.impressions) {
-            parameters = [self getParameterForImpressionCommerceEvent:impressionKey products:commerceEvent.impressions[impressionKey]];
+            parameters = [self getParameterForImpression:impressionKey commerceEvent:commerceEvent products:commerceEvent.impressions[impressionKey]];
 
             [FIRAnalytics logEventWithName:eventName parameters:parameters];
         }
@@ -365,8 +365,9 @@ - (NSString *)getEventNameForCommerceEvent:(MPCommerceEvent *)commerceEvent para
     }
 }
 
-- (NSDictionary<NSString *, id> *)getParameterForPromotionCommerceEvent:(MPPromotion *)promotion {
-    NSMutableDictionary<NSString *, id> *parameters = [[NSMutableDictionary alloc] init];
+- (NSDictionary<NSString *, id> *)getParameterForPromotion:(MPPromotion *)promotion commerceEvent:(MPCommerceEvent *)commerceEvent {
+    NSMutableDictionary<NSString *, id> *parameters = [[self standardizeValues:commerceEvent.customAttributes forEvent:YES] mutableCopy];
+
 
     if (promotion.promotionId) {
         [parameters setObject:promotion.promotionId forKey:kFIRParameterPromotionID];
@@ -384,8 +385,8 @@ - (NSString *)getEventNameForCommerceEvent:(MPCommerceEvent *)commerceEvent para
     return parameters;
 }
 
-- (NSDictionary<NSString *, id> *)getParameterForImpressionCommerceEvent:(NSString *)impressionKey products:(NSSet<MPProduct *> *)products {
-    NSMutableDictionary<NSString *, id> *parameters = [[NSMutableDictionary alloc] init];
+- (NSDictionary<NSString *, id> *)getParameterForImpression:(NSString *)impressionKey  commerceEvent:(MPCommerceEvent *)commerceEvent products:(NSSet<MPProduct *> *)products {
+    NSMutableDictionary<NSString *, id> *parameters = [[self standardizeValues:commerceEvent.customAttributes forEvent:YES] mutableCopy];
 
     [parameters setObject:impressionKey forKey:kFIRParameterItemListID];
     [parameters setObject:impressionKey forKey:kFIRParameterItemListName];
@@ -423,7 +424,7 @@ - (NSString *)getEventNameForCommerceEvent:(MPCommerceEvent *)commerceEvent para
 }
 
 - (NSDictionary<NSString *, id> *)getParameterForCommerceEvent:(MPCommerceEvent *)commerceEvent {
-    NSMutableDictionary<NSString *, id> *parameters = [[NSMutableDictionary alloc] init];
+    NSMutableDictionary<NSString *, id> *parameters = [[self standardizeValues:commerceEvent.customAttributes forEvent:YES] mutableCopy];
 
     NSMutableArray *itemArray = [[NSMutableArray alloc] init];
     for (MPProduct *product in commerceEvent.products) {