From dcca8b7433b09753ebb9522d7f6c608a376c74dd Mon Sep 17 00:00:00 2001
From: Jonathan Klee <jonathan.klee@e.email>
Date: Mon, 25 Jul 2022 09:10:30 +0200
Subject: [PATCH] Implement getOnDemandModule()

Implement getOnDemandModule() method to list the split apks
available for a specific package name.
---
 .../aurora/gplayapi/helpers/PurchaseHelper.kt | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/src/main/java/com/aurora/gplayapi/helpers/PurchaseHelper.kt b/src/main/java/com/aurora/gplayapi/helpers/PurchaseHelper.kt
index b71157f..ed47ea4 100644
--- a/src/main/java/com/aurora/gplayapi/helpers/PurchaseHelper.kt
+++ b/src/main/java/com/aurora/gplayapi/helpers/PurchaseHelper.kt
@@ -118,6 +118,57 @@ class PurchaseHelper(authData: AuthData) : BaseHelper(authData) {
         return payload.deliveryResponse
     }
 
+    @Throws(Exception::class)
+    fun getOnDemandModule(
+        packageName: String,
+        splitModule: String,
+        versionCode: Int,
+        offerType: Int
+    ) : List<File> {
+        val buyResponse = getBuyResponse(packageName, versionCode, offerType)
+        val deliveryResponse = getOnDemandDeliveryResponse(
+            packageName,
+            splitModule,
+            buyResponse.encodedDeliveryToken,
+            versionCode,
+            offerType
+        )
+
+        when (deliveryResponse.status) {
+            1 -> return getDownloadsFromDeliveryResponse(packageName, versionCode, deliveryResponse)
+            else -> throw ApiException.Unknown()
+        }
+    }
+
+    private fun getOnDemandDeliveryResponse(
+        packageName:String,
+        splitModule: String,
+        downloadToken: String,
+        versionCode: Int,
+        offerType: Int
+    ) : DeliveryResponse {
+
+        val params: MutableMap<String, String> = HashMap()
+        params["ot"] = offerType.toString()
+        params["doc"] = packageName
+        params["vc"] = versionCode.toString()
+        params["mn"] = splitModule
+
+        if (downloadToken.isNotEmpty()) {
+            params["dtok"] = downloadToken
+        }
+
+        val playResponse = httpClient.get(
+            GooglePlayApi.DELIVERY_URL,
+            HeaderProvider.getDefaultHeaders(authData),
+            params
+        )
+
+        val payload = ResponseWrapper.parseFrom(playResponse.responseBytes).payload
+
+        return payload.deliveryResponse
+    }
+
     @Throws(Exception::class)
     fun purchase(packageName: String, versionCode: Int, offerType: Int): List<File> {
         val buyResponse = getBuyResponse(packageName, versionCode, offerType)
-- 
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