feat: Add support for ASSA v1.13 and ASSN v2.13

assets/signedRenewalInfo.json

@@ -15,5 +15,9 @@
   "renewalDate": 1698148850000,
   "renewalPrice": 9990,
   "currency": "USD",
-  "offerDiscountType": "PAY_AS_YOU_GO"
+  "offerDiscountType": "PAY_AS_YOU_GO",
+  "eligibleWinBackOfferIds": [
+    "eligible1",
+    "eligible2"
+  ]
 }

src/primitives/jws_renewal_info_decoded_payload.rs

@@ -118,5 +118,11 @@ pub struct JWSRenewalInfoDecodedPayload {
     ///
     ///[offerDiscountType](https://developer.apple.com/documentation/appstoreserverapi/offerdiscounttype)
     #[serde(rename = "offerDiscountType")]
-    pub offer_discount_type: Option<OfferDiscountType>
+    pub offer_discount_type: Option<OfferDiscountType>,
+
+    ///An array of win-back offer identifiers that a customer is eligible to redeem, which sorts the identifiers to present the better offers first.
+    ///
+    ///[eligibleWinBackOfferIds](https://developer.apple.com/documentation/appstoreserverapi/eligiblewinbackofferids)
+    #[serde(rename = "eligibleWinBackOfferIds")]
+    pub eligible_win_back_offer_ids: Option<Vec<String>>
 }

src/primitives/offer_type.rs

@@ -9,4 +9,5 @@ pub enum OfferType {
     IntroductoryOffer = 1,
     PromotionalOffer = 2,
     SubscriptionOfferCode = 3,
+    WinBackOffer = 4,
 }

src/signed_data_verifier.rs

@@ -386,6 +386,21 @@ mod tests {
             .verify_and_decode_renewal_info(RENEWAL_INFO)
             .unwrap();
         assert_eq!(renewal_info.environment, Some(Environment::Sandbox));
+        // TODO: Implement TestingUtility to generate signed data from json
+        // assert_eq!(
+        //     "USD",
+        //     renewal_info.currency.as_deref().expect("Expect currency")
+        // );
+        // assert_eq!(
+        //     OfferDiscountType::PayAsYouGo,
+        //     renewal_info
+        //         .offer_discount_type
+        //         .expect("Expect offer_discount_type")
+        // );
+        // assert_eq!(
+        //     vec!["eligible1", "eligible2"],
+        //     renewal_info.eligible_win_back_offer_ids.unwrap()
+        // );
     }
 
     #[test]