Add logging to verify play purchase

1 files changed, 27 insertions, 8 deletions

diff --git a/android/lib/billing/src/main/kotlin/net/mullvad/mullvadvpn/lib/billing/BillingPaymentRepository.kt b/android/lib/billing/src/main/kotlin/net/mullvad/mullvadvpn/lib/billing/BillingPaymentRepository.kt
index e7ab084232..756aad02aa 100644
--- a/android/lib/billing/src/main/kotlin/net/mullvad/mullvadvpn/lib/billing/BillingPaymentRepository.kt
+++ b/android/lib/billing/src/main/kotlin/net/mullvad/mullvadvpn/lib/billing/BillingPaymentRepository.kt
@@ -25,6 +25,7 @@ import net.mullvad.mullvadvpn.lib.billing.model.PurchaseEvent
 import net.mullvad.mullvadvpn.lib.model.PlayPurchase
 import net.mullvad.mullvadvpn.lib.model.PlayPurchaseInitError
 import net.mullvad.mullvadvpn.lib.model.PlayPurchasePaymentToken
+import net.mullvad.mullvadvpn.lib.model.PlayPurchaseVerifyError
 import net.mullvad.mullvadvpn.lib.payment.PaymentRepository
 import net.mullvad.mullvadvpn.lib.payment.ProductIds
 import net.mullvad.mullvadvpn.lib.payment.model.PaymentAvailability
@@ -164,14 +165,32 @@ class BillingPaymentRepository(
             }
         }
 
-    private suspend fun verifyPurchase(purchase: Purchase) =
-        playPurchaseRepository
-            .verifyPlayPurchase(
-                PlayPurchase(
-                    productId = purchase.products.first(),
-                    purchaseToken = PlayPurchasePaymentToken(purchase.purchaseToken),
+    private suspend fun verifyPurchase(
+        purchase: Purchase
+    ): Either<PlayPurchaseVerifyError, ProductId> =
+        either {
+                ensure(purchase.products.isNotEmpty()) {
+                    Logger.e("Purchase has no products")
+                    PlayPurchaseVerifyError.OtherError
+                }
+                ensure(purchase.purchaseToken.isNotEmpty()) {
+                    Logger.e("Purchase has no purchase token")
+                    PlayPurchaseVerifyError.OtherError
+                }
+                playPurchaseRepository
+                    .verifyPlayPurchase(
+                        PlayPurchase(
+                            productId = purchase.products.first(),
+                            purchaseToken = PlayPurchasePaymentToken(purchase.purchaseToken),
+                        )
+                    )
+                    .also { Logger.d("Purchase verification result $it") }
+                    .bind()
+            }
+            .onLeft {
+                Logger.e(
+                    "Failed to verify purchase token ending with ${purchase.purchaseToken.takeLast(2)}"
                 )
-            )
-            .also { Logger.d("Purchase verification result $it") }
+            }
             .map { ProductId(purchase.products.first()) }
 }