fixes bug subscription_offer_details=null

godot-google-play-billing/src/main/java/org/godotengine/godot/plugin/googleplaybilling/utils/GooglePlayBillingUtils.java

@@ -76,33 +76,35 @@ public static Dictionary convertProductDetailsToDictionary(ProductDetails detail
 		}
 
 		List<ProductDetails.SubscriptionOfferDetails> subscriptionOfferDetailsList = details.getSubscriptionOfferDetails();
-
 		if (subscriptionOfferDetailsList != null && !subscriptionOfferDetailsList.isEmpty()) {
-			ArrayList<Dictionary> subscriptionOfferDetailsDictionaryList = new ArrayList<>();
+			Dictionary subscriptionOfferDetailsDictionaryContainer = new Dictionary();
 
+			int subscriptionOfferIndex = 1;
 			for (ProductDetails.SubscriptionOfferDetails subscriptionOfferDetails : subscriptionOfferDetailsList) {
 				Dictionary subscriptionOfferDetailsDictionary = new Dictionary();
 				subscriptionOfferDetailsDictionary.put("offer_token", subscriptionOfferDetails.getOfferToken());
 				subscriptionOfferDetailsDictionary.put("offer_tags", subscriptionOfferDetails.getOfferTags());
 
-				ArrayList<Dictionary> pricingPhasesDictionaryList = new ArrayList<>();
-				for (ProductDetails.PricingPhase pricingPhase : subscriptionOfferDetails.getPricingPhases().getPricingPhaseList()) {
+				Dictionary pricingPhasesDictionaryContainer = new Dictionary();
+				List<ProductDetails.PricingPhase> pricingPhasesList = subscriptionOfferDetails.getPricingPhases().getPricingPhaseList();
+				for (int i = 0; i < pricingPhasesList.size(); i++) {
+					ProductDetails.PricingPhase pricingPhase = pricingPhasesList.get(i);
 					Dictionary pricingPhasesDictionary = new Dictionary();
 					pricingPhasesDictionary.put("billing_cycle_count", pricingPhase.getBillingCycleCount());
 					pricingPhasesDictionary.put("billing_period", pricingPhase.getBillingPeriod());
 					pricingPhasesDictionary.put("formatted_price", pricingPhase.getFormattedPrice());
 					pricingPhasesDictionary.put("price_amount_micros", pricingPhase.getPriceAmountMicros());
 					pricingPhasesDictionary.put("price_currency_code", pricingPhase.getPriceCurrencyCode());
 					pricingPhasesDictionary.put("recurrence_mode", pricingPhase.getRecurrenceMode());
-					pricingPhasesDictionaryList.add(pricingPhasesDictionary);
+					pricingPhasesDictionaryContainer.put("pricingPhase_" + (i + 1), pricingPhasesDictionary);
 				}
 
-				subscriptionOfferDetailsDictionary.put("pricing_phases", pricingPhasesDictionaryList);
-
-				subscriptionOfferDetailsDictionaryList.add(subscriptionOfferDetailsDictionary);
+				subscriptionOfferDetailsDictionary.put("pricing_phases", pricingPhasesDictionaryContainer);
+				subscriptionOfferDetailsDictionaryContainer.put("subscriptionOffer_" + subscriptionOfferIndex, subscriptionOfferDetailsDictionary);
+				subscriptionOfferIndex++;
 			}
 
-			dictionary.put("subscription_offer_details", subscriptionOfferDetailsDictionaryList);
+			dictionary.put("subscription_offer_details", subscriptionOfferDetailsDictionaryContainer);
 		}
 
 		return dictionary;