Includes offer price and period for android

android/src/main/kotlin/com/chargebee/flutter/sdk/ChargebeeFlutterSdkPlugin.kt

@@ -1,7 +1,6 @@
 package com.chargebee.flutter.sdk
 
 import android.app.Activity
-import android.content.Context
 import android.util.Log
 import androidx.annotation.NonNull
 import com.chargebee.android.Chargebee
@@ -557,26 +556,38 @@ fun defaultSubscriptionPeriod(): Map<String, Any> {
 }
 
 fun SubscriptionOffer.toMap(product: CBProduct): Map<String, Any> {
-    val pricingPhase = pricingPhases.first()
-    return mapOf(
+    val pricingPhase = pricingPhases.last()
+    val subscription = mutableMapOf(
         "productId" to product.id,
+        "productType" to product.type.value,
         "baseProductId" to basePlanId,
-        "offerId" to offerId.orEmpty(),
         "offerToken" to offerToken,
         "productTitle" to product.title,
         "productPrice" to pricingPhase.convertPriceAmountInMicros(),
         "productPriceString" to pricingPhase.formattedPrice,
         "currencyCode" to pricingPhase.currencyCode,
-        "subscriptionPeriod" to subscriptionPeriod()
+        "subscriptionPeriod" to pricingPhase.subscriptionPeriod()
     )
+    offerId?.let {
+        subscription["offer"] = offer()
+    }
+    return subscription
 }
 
-private fun SubscriptionOffer.subscriptionPeriod(): Any {
-    val subscriptionPricing = this.pricingPhases.last()
-    val subscriptionPeriod = subscriptionPricing.billingPeriod
-    val numberOfUnits = subscriptionPeriod?.substring(1, subscriptionPeriod.length - 1)?.toInt()
+private fun SubscriptionOffer.offer(): Map<String, Any> {
+    val pricingPhase = pricingPhases.first()
+    return mapOf(
+        "id" to offerId.orEmpty(),
+        "price" to pricingPhase.convertPriceAmountInMicros(),
+        "priceString" to pricingPhase.formattedPrice,
+        "period" to pricingPhase.subscriptionPeriod()
+    )
+}
+private fun PricingPhase.subscriptionPeriod(): Map<String, Any> {
+    val subscriptionPeriod = billingPeriod
+    val numberOfUnits = subscriptionPeriod?.substring(1, subscriptionPeriod.length - 1)?.toInt() ?: 0
     return mapOf(
-        "periodUnit" to subscriptionPricing.periodUnit(),
+        "periodUnit" to periodUnit(),
         "numberOfUnits" to numberOfUnits
     )
 }

example/lib/product_listview.dart

@@ -23,6 +23,7 @@ class ProductListViewState extends State<ProductListView> {
   late var productId = '';
   late String? baseProductId = '';
   late var currencyCode = '';
+  late Offer? offer = null;
   late ProgressBarUtil mProgressBarUtil;
   final TextEditingController productIdTextFieldController =
       TextEditingController();
@@ -45,6 +46,11 @@ class ProductListViewState extends State<ProductListView> {
             productId = listProducts[pos].id;
             baseProductId = listProducts[pos].baseProductId;
             currencyCode = listProducts[pos].currencyCode;
+            offer = listProducts[pos].offer;
+            var priceToDisplay = productPrice + ' (currencyCode: ' + currencyCode + ')';
+            if(offer != null) {
+              priceToDisplay = offer!.priceString + ' Offer:'  + offer!.id ;
+            }
             return Card(
               child: ListTile(
                 title: Text(
@@ -56,7 +62,7 @@ class ProductListViewState extends State<ProductListView> {
                   ),
                 ),
                 subtitle: Text(
-                  productPrice + ' (currencyCode: ' + currencyCode + ')',
+                  priceToDisplay,
                   style: const TextStyle(
                     fontWeight: FontWeight.normal,
                     fontSize: 15,

lib/src/models/product.dart

@@ -5,13 +5,13 @@ class Product {
   /// Id of the product
   late String id;
 
-  /// For Android, the basePlanId will be returned.
+  /// For Android, returns the basePlanId
   late String? baseProductId;
 
-  /// For Android, the Offer ID will be returned.
-  late String? offerId;
+  /// For Android, returns the Offer details if present
+  late Offer? offer;
 
-  /// For Android, the offerToken will be returned.
+  /// For Android, returns the offerToken
   late String? offerToken;
 
   /// Title of the product
@@ -29,18 +29,23 @@ class Product {
   /// Subscription period, which consists of unit and number of units
   late SubscriptionPeriod subscriptionPeriod;
 
-  Product(this.id, this.baseProductId, this.offerId, this.offerToken, this.price, this.priceString, this.title, this.currencyCode,
+  Product(this.id, this.baseProductId, this.offer, this.offerToken, this.price, this.priceString, this.title, this.currencyCode,
       this.subscriptionPeriod);
 
   /// convert json data into Product model
   factory Product.fromJson(Map<String, dynamic> json) {
     debugPrint('json: $json');
     final subscriptionPeriod = SubscriptionPeriod.fromMap(
         json['subscriptionPeriod'] as Map<String, dynamic>);
+    var offer = null;
+    if(json['offer'] != null) {
+      offer = Offer.fromMap(
+        json['offer'] as Map<String, dynamic>);
+    }
     return Product(
       json['productId'] as String,
       json['baseProductId'] as String?,
-      json['offerId'] as String?,
+      offer,
       json['offerToken'] as String?,
       json['productPrice'] as num,
       json['productPriceString'] as String,
@@ -52,7 +57,7 @@ class Product {
 
   @override
   String toString() =>
-      'Product(id: $id, baseProductId: $baseProductId, offerId: $offerId, offerToken: $offerToken, price: $price, priceString: $priceString title: $title, currencyCode: $currencyCode, subscriptionPeriod: $subscriptionPeriod)';
+      'Product(id: $id, baseProductId: $baseProductId, offer: $offer, offerToken: $offerToken, price: $price, priceString: $priceString title: $title, currencyCode: $currencyCode, subscriptionPeriod: $subscriptionPeriod)';
 }
 
 class SubscriptionPeriod {
@@ -71,6 +76,37 @@ class SubscriptionPeriod {
   }
 }
 
+class Offer {
+  /// Offer Id
+  late String id;
+
+  /// Local currency offer price for the product offer in double
+  late num price;
+
+  /// Local currency offer price for the product offer in string
+  late String priceString;
+
+  /// Subscription Offer period, which consists of unit and number of units
+  late SubscriptionPeriod offerPeriod;
+
+  Offer(this.id, this.price, this.priceString, this.offerPeriod);
+
+  /// convert map object into SubscriptionPeriod
+  factory Offer.fromMap(Map<String, dynamic> map) {
+    final offerPeriod = SubscriptionPeriod.fromMap(
+        map['period'] as Map<String, dynamic>);
+    return Offer(map['id'] as String,
+      map['price'] as num,
+      map['priceString'] as String,
+      offerPeriod
+      );
+  }
+
+  @override
+  String toString() =>
+      'Offer(id: $id, price: $price, priceString: $priceString, offerPeriod: $offerPeriod)';
+}
+
 /// Store the information related to product subscriptions
 class PurchaseResult {
   /// product subscriptions id