Updated on 2026-08-14

core/datasource/src/main/java/com/tangem/datasource/local/token/DefaultStakingYieldsStore.kt

@@ -23,20 +23,22 @@ internal class DefaultStakingYieldsStore(
         return withTimeoutOrNull(timeout = YIELDS_WAITING_TIMEOUT, block = { get().firstOrNull() })
     }
 
-    override suspend fun store(items: List<YieldDTO>) {
-        dataStore.updateData { data ->
-            val updatedItems = data.toMutableList()
-            items.forEach { newItem ->
-                val existingItemIndex = data.indexOfFirst { it.id == newItem.id }
-                if (existingItemIndex != -1) {
-                    // Update existing item
-                    updatedItems[existingItemIndex] = newItem
-                } else {
-                    // Add new item
-                    updatedItems.add(newItem)
+    override suspend fun store(items: List<YieldDTO>, force: Boolean) {
+        if (force) {
+            dataStore.updateData { items }
+        } else {
+            dataStore.updateData { data ->
+                val updatedItems = data.toMutableList()
+                items.forEach { newItem ->
+                    val existingItemIndex = data.indexOfFirst { it.id == newItem.id }
+                    if (existingItemIndex != -1) {
+                        updatedItems[existingItemIndex] = newItem
+                    } else {
+                        updatedItems.add(newItem)
+                    }
                 }
+                updatedItems
             }
-            updatedItems
         }
     }
 

core/datasource/src/main/java/com/tangem/datasource/local/token/StakingYieldsStore.kt

@@ -11,5 +11,5 @@ interface StakingYieldsStore {
 
     suspend fun getSyncWithTimeout(): List<YieldDTO>?
 
-    suspend fun store(items: List<YieldDTO>)
+    suspend fun store(items: List<YieldDTO>, force: Boolean = false)
 }

data/staking/src/main/java/com/tangem/data/staking/DefaultStakingRepository.kt

@@ -107,7 +107,9 @@ internal class DefaultStakingRepository(
                     }
                 }
             }
-            stakingYieldsStore.store(yields)
+
+            val shouldRewriteCache = yieldsResponses.all { it is ApiResponse.Success }
+            stakingYieldsStore.store(yields, shouldRewriteCache)
         }
     }
 
@@ -488,6 +490,13 @@ internal class DefaultStakingRepository(
     }
 
     private fun findPrefetchedYield(yields: List<Yield>, currencyId: CryptoCurrency.RawID, symbol: String): Yield? {
+        if (!stakingFeatureToggles.isCardanoStakingEnabled && symbol.equals(
+                Blockchain.Cardano.currency,
+                ignoreCase = true,
+            )
+        ) {
+            return null
+        }
         return yields.find { yield ->
             yield.tokens.any { it.coinGeckoId == currencyId.value && it.symbol == symbol }
         }

features/tokendetails/impl/src/main/kotlin/com/tangem/feature/tokendetails/presentation/tokendetails/model/TokenDetailsModel.kt

@@ -1105,14 +1105,15 @@ internal class TokenDetailsModel @Inject constructor(
 
     private fun openStaking() {
         modelScope.launch {
-            val yield = getYieldUseCase.invoke(
+            getYieldUseCase.invoke(
                 cryptoCurrencyId = cryptoCurrency.id,
                 symbol = cryptoCurrency.symbol,
-            ).getOrElse {
-                error("Staking is unavailable for ${cryptoCurrency.name}")
+            ).onRight { yield ->
+                router.openStaking(userWalletId, cryptoCurrency, yield.id)
+            }.onLeft {
+                Timber.e("Staking is unavailable for ${cryptoCurrency.name}")
+                uiMessageSender.send(SnackbarMessage(resourceReference(R.string.staking_error_no_validators_title)))
             }
-
-            router.openStaking(userWalletId, cryptoCurrency, yield.id)
         }
     }