Updated on 2026-08-14

features/swap/presentation/src/main/java/com/tangem/feature/swap/models/SwapStateHolder.kt

@@ -15,7 +15,6 @@ import com.tangem.feature.swap.models.states.ProviderState
 data class SwapStateHolder(
     val sendCardData: SwapCardState,
     val receiveCardData: SwapCardState,
-    val networkCurrency: String,
     val blockchainId: String, // not the same as networkId, its local id in app
     val warnings: List<SwapWarning> = emptyList(),
     val alert: SwapWarning.GenericWarning? = null,

features/swap/presentation/src/main/java/com/tangem/feature/swap/models/UiActions.kt

@@ -1,5 +1,6 @@
 package com.tangem.feature.swap.models
 
+import com.tangem.domain.tokens.model.CryptoCurrency
 import com.tangem.feature.swap.domain.models.ui.TxFee
 
 data class UiActions(
@@ -20,7 +21,7 @@ data class UiActions(
     val onSelectFeeType: (TxFee) -> Unit,
     val onProviderClick: (String) -> Unit,
     val onProviderSelect: (String) -> Unit,
-    val onBuyClick: () -> Unit,
+    val onBuyClick: (CryptoCurrency) -> Unit,
     val onPolicyClick: (String) -> Unit,
     val onTosClick: (String) -> Unit,
     val onReceiveCardWarningClick: () -> Unit,

features/swap/presentation/src/main/java/com/tangem/feature/swap/ui/StateBuilder.kt

@@ -79,7 +79,6 @@ internal class StateBuilder(
                 isBalanceHidden = true,
             ),
             fee = FeeItemState.Empty,
-            networkCurrency = networkInfo.blockchainCurrency,
             swapButton = SwapButton(enabled = false, onClick = {}),
             onRefresh = {},
             onBackClicked = actions.onBackClicked,
@@ -250,7 +249,6 @@ internal class StateBuilder(
                 balance = toCurrencyStatus.getFormattedAmount(isNeedSymbol = false),
                 isBalanceHidden = isBalanceHiddenProvider(),
             ),
-            networkCurrency = quoteModel.networkCurrency,
             warnings = warnings,
             permissionState = convertPermissionState(
                 lastPermissionState = uiStateHolder.permissionState,
@@ -317,7 +315,7 @@ internal class StateBuilder(
         val warnings = mutableListOf<SwapWarning>()
         addDomainWarnings(quoteModel, warnings)
         if (!quoteModel.preparedSwapConfigState.isAllowedToSpend &&
-            quoteModel.preparedSwapConfigState.isFeeEnough &&
+            quoteModel.preparedSwapConfigState.feeState is SwapFeeState.Enough &&
             quoteModel.permissionState is PermissionDataState.PermissionReadyForRequest
         ) {
             warnings.add(
@@ -412,7 +410,8 @@ internal class StateBuilder(
         fromToken: CryptoCurrency,
         warnings: MutableList<SwapWarning>,
     ) {
-        if (!quoteModel.preparedSwapConfigState.isFeeEnough &&
+        val feeEnoughState = quoteModel.preparedSwapConfigState.feeState
+        if (feeEnoughState is SwapFeeState.NotEnough &&
             quoteModel.preparedSwapConfigState.isBalanceEnough &&
             quoteModel.permissionState !is PermissionDataState.PermissionLoading
         ) {
@@ -420,7 +419,9 @@ internal class StateBuilder(
                 SwapWarning.UnableToCoverFeeWarning(
                     createUnableToCoverFeeNotificationConfig(
                         fromToken = fromToken,
-                        onBuyClick = actions.onBuyClick,
+                        feeCurrency = feeEnoughState.feeCurrency,
+                        currencyName = feeEnoughState.currencyName ?: fromToken.network.name,
+                        currencySymbol = feeEnoughState.currencySymbol ?: fromToken.network.currencySymbol,
                     ),
                 ),
             )
@@ -438,7 +439,7 @@ internal class StateBuilder(
             IncludeFeeInAmount.Excluded ->
                 preparedSwapConfigState.isAllowedToSpend &&
                     preparedSwapConfigState.isBalanceEnough &&
-                    preparedSwapConfigState.isFeeEnough
+                    preparedSwapConfigState.feeState is SwapFeeState.Enough
             is IncludeFeeInAmount.Included -> true
         }
     }
@@ -1219,8 +1220,16 @@ internal class StateBuilder(
 
     private fun createUnableToCoverFeeNotificationConfig(
         fromToken: CryptoCurrency,
-        onBuyClick: () -> Unit,
+        feeCurrency: CryptoCurrency?,
+        currencyName: String,
+        currencySymbol: String,
     ): NotificationConfig {
+        val buttonState = feeCurrency?.let {
+            NotificationConfig.ButtonsState.SecondaryButtonConfig(
+                text = resourceReference(R.string.common_buy_currency, wrappedList(currencySymbol)),
+                onClick = { actions.onBuyClick(it) },
+            )
+        }
         return NotificationConfig(
             title = resourceReference(
                 R.string.warning_express_not_enough_fee_for_token_tx_title,
@@ -1228,13 +1237,10 @@ internal class StateBuilder(
             ),
             subtitle = resourceReference(
                 R.string.warning_express_not_enough_fee_for_token_tx_description,
-                wrappedList(fromToken.network.name, fromToken.network.currencySymbol),
+                wrappedList(currencyName, currencySymbol),
             ),
             iconResId = fromToken.networkIconResId,
-            buttonsState = NotificationConfig.ButtonsState.SecondaryButtonConfig(
-                text = resourceReference(R.string.common_buy_currency, wrappedList(fromToken.network.currencySymbol)),
-                onClick = onBuyClick,
-            ),
+            buttonsState = buttonState,
         )
     }
 

features/swap/presentation/src/main/java/com/tangem/feature/swap/ui/SwapScreenContent.kt

@@ -490,7 +490,6 @@ private val state = SwapStateHolder(
             ),
         ),
     ),
-    networkCurrency = "MATIC",
     swapButton = SwapButton(enabled = true, onClick = {}),
     onRefresh = {},
     onBackClicked = {},

features/swap/presentation/src/main/java/com/tangem/feature/swap/viewmodels/SwapViewModel.kt

@@ -932,12 +932,11 @@ internal class SwapViewModel @Inject constructor(
                     )
                 }
             },
-            onBuyClick = {
-                swapInteractor.getSelectedWallet()?.let {
-                    val fromToken = dataState.fromCryptoCurrency ?: return@let
+            onBuyClick = { currency ->
+                swapInteractor.getSelectedWallet()?.let { userWallet ->
                     swapRouter.openTokenDetails(
-                        it.walletId,
-                        swapInteractor.getNativeToken(fromToken.currency.network.backendId),
+                        userWalletId = userWallet.walletId,
+                        currency = currency,
                     )
                 }
             },