Updated on 2026-08-14

app/src/main/java/com/tangem/tap/features/wallet/redux/WalletState.kt

@@ -32,6 +32,8 @@ import com.tangem.tap.features.wallet.models.WalletRent
 import com.tangem.tap.features.wallet.models.WalletWarning
 import com.tangem.tap.features.wallet.models.toPendingTransactions
 import com.tangem.tap.features.wallet.models.toPendingTransactionsForToken
+import com.tangem.tap.features.wallet.redux.reducers.calculateTotalFiatAmount
+import com.tangem.tap.features.wallet.redux.reducers.findTotalBalanceState
 import com.tangem.tap.features.wallet.ui.BalanceStatus
 import com.tangem.tap.features.wallet.ui.BalanceWidgetData
 import com.tangem.tap.network.exchangeServices.CurrencyExchangeManager
@@ -200,11 +202,11 @@ data class WalletState(
             .distinct().map { getWalletStore(it) }.mapNotNull { it?.updateWallets(walletsData) }
 
         return updateWalletStores(walletStores)
-
     }
 
     fun updateWalletStore(walletStore: WalletStore?): WalletState {
         return copy(wallets = replaceWalletInWallets(walletStore))
+            .updateTotalBalance()
     }
 
     private fun updateWalletStores(walletStores: List<WalletStore>): WalletState {
@@ -221,6 +223,7 @@ data class WalletState(
             }
         }
         return copy(wallets = updatedWallets + walletStoresMutable)
+            .updateTotalBalance()
     }
 
     fun removeWallet(walletData: WalletData?): WalletState {
@@ -282,11 +285,18 @@ data class WalletState(
         }
     }
 
-    fun updateTotalBalance(
-        totalBalance: TotalBalance?
-    ): WalletState {
-        return this.copy(
-            totalBalance = totalBalance
+    private fun updateTotalBalance(): WalletState {
+        return if (wallets.isNotEmpty()) {
+            val walletsData = wallets.flatMap(WalletStore::walletsData)
+            this.copy(
+                totalBalance = TotalBalance(
+                    state = walletsData.findTotalBalanceState(),
+                    fiatAmount = walletsData.calculateTotalFiatAmount(),
+                    fiatCurrency = store.state.globalState.appCurrency
+                )
+            )
+        } else this.copy(
+            totalBalance = null
         )
     }
 }

app/src/main/java/com/tangem/tap/features/wallet/redux/reducers/MultiWalletReducer.kt

@@ -10,7 +10,12 @@ import com.tangem.tap.domain.getFirstToken
 import com.tangem.tap.domain.tokens.BlockchainNetwork
 import com.tangem.tap.features.wallet.models.removeUnknownTransactions
 import com.tangem.tap.features.wallet.models.toPendingTransactions
-import com.tangem.tap.features.wallet.redux.*
+import com.tangem.tap.features.wallet.redux.Currency
+import com.tangem.tap.features.wallet.redux.WalletAction
+import com.tangem.tap.features.wallet.redux.WalletData
+import com.tangem.tap.features.wallet.redux.WalletMainButton
+import com.tangem.tap.features.wallet.redux.WalletState
+import com.tangem.tap.features.wallet.redux.WalletStore
 import com.tangem.tap.features.wallet.ui.BalanceStatus
 import com.tangem.tap.features.wallet.ui.BalanceWidgetData
 import com.tangem.tap.features.wallet.ui.TokenData
@@ -126,7 +131,7 @@ class MultiWalletReducer {
                         ),
                         fiatAmountFormatted = tokenWalletData.fiatRate?.let {
                             action.amount.value
-                                ?.toFiatString(it, store.state.globalState.appCurrency.code)
+                                ?.toFiatString(it, store.state.globalState.appCurrency.symbol)
                         },
                         blockchainAmount = wallet.amounts[AmountType.Coin]?.value ?: BigDecimal.ZERO
                     ),

app/src/main/java/com/tangem/tap/features/wallet/redux/reducers/OnWalletLoadedReducer.kt

@@ -11,7 +11,11 @@ import com.tangem.tap.domain.getFirstToken
 import com.tangem.tap.domain.tokens.BlockchainNetwork
 import com.tangem.tap.features.wallet.models.removeUnknownTransactions
 import com.tangem.tap.features.wallet.models.toPendingTransactions
-import com.tangem.tap.features.wallet.redux.*
+import com.tangem.tap.features.wallet.redux.Currency
+import com.tangem.tap.features.wallet.redux.ProgressState
+import com.tangem.tap.features.wallet.redux.TradeCryptoState
+import com.tangem.tap.features.wallet.redux.WalletMainButton
+import com.tangem.tap.features.wallet.redux.WalletState
 import com.tangem.tap.features.wallet.ui.BalanceStatus
 import com.tangem.tap.features.wallet.ui.BalanceWidgetData
 import com.tangem.tap.features.wallet.ui.TokenData
@@ -97,7 +101,7 @@ class OnWalletLoadedReducer {
                         token.symbol
                     ),
                     fiatAmount = tokenFiatAmount,
-                    fiatAmountFormatted = tokenFiatAmount?.toFormattedFiatValue(fiatCurrency.code)
+                    fiatAmountFormatted = tokenFiatAmount?.toFormattedFiatValue(fiatCurrency.symbol)
                 ),
                 pendingTransactions = tokenPendingTransactions.removeUnknownTransactions(),
                 mainButton = WalletMainButton.SendButton(tokenSendButton),
@@ -114,9 +118,6 @@ class OnWalletLoadedReducer {
         }
         return walletState
             .updateWalletsData(wallets)
-            .updateTotalBalance(
-                totalBalance = obtainTotalBalance(wallets, fiatCurrency)
-            )
             .copy(
                 state = state,
                 error = null

app/src/main/java/com/tangem/tap/features/wallet/redux/reducers/TotalBalanceOperations.kt

@@ -1,37 +1,21 @@
 package com.tangem.tap.features.wallet.redux.reducers
 
-import com.tangem.tap.common.entities.FiatCurrency
 import com.tangem.tap.features.wallet.models.TotalBalance
 import com.tangem.tap.features.wallet.redux.WalletData
 import com.tangem.tap.features.wallet.ui.BalanceStatus
 import java.math.BigDecimal
 
-fun obtainTotalBalance(
-    wallets: List<WalletData>,
-    appCurrency: FiatCurrency
-): TotalBalance? {
-    return if (wallets.isNotEmpty()) {
-        TotalBalance(
-            state = wallets.findTotalBalanceState(),
-            fiatAmount = wallets.calculateTotalFiatAmount(),
-            fiatCurrency = appCurrency
-        )
-    } else null
-}
-
-private fun List<WalletData>.findTotalBalanceState(): TotalBalance.State {
+fun List<WalletData>.findTotalBalanceState(): TotalBalance.State {
     return this.mapToTotalBalanceState()
-        .fold(initial = TotalBalance.State.Loading) { accState, newState ->
-            accState or newState
-        }
+        .reduce(TotalBalance.State::or)
 }
 
-private fun List<WalletData>.calculateTotalFiatAmount(): BigDecimal {
+fun List<WalletData>.calculateTotalFiatAmount(): BigDecimal {
     return this.map { it.currencyData.fiatAmount ?: BigDecimal.ZERO }
         .reduce(BigDecimal::plus)
 }
 
-private fun List<WalletData>.mapToTotalBalanceState(): List<TotalBalance.State> {
+fun List<WalletData>.mapToTotalBalanceState(): List<TotalBalance.State> {
     return this.map {
         when (it.currencyData.status) {
             BalanceStatus.VerifiedOnline,
@@ -50,9 +34,9 @@ private fun List<WalletData>.mapToTotalBalanceState(): List<TotalBalance.State>
 infix fun TotalBalance.State.or(newState: TotalBalance.State): TotalBalance.State {
     return when (this) {
         TotalBalance.State.Loading -> when (newState) {
-            TotalBalance.State.Loading -> this
+            TotalBalance.State.Loading,
             TotalBalance.State.SomeTokensFailed,
-            TotalBalance.State.Success -> newState
+            TotalBalance.State.Success -> this
         }
         TotalBalance.State.Success,
         TotalBalance.State.SomeTokensFailed -> when (newState) {

app/src/main/java/com/tangem/tap/features/wallet/redux/reducers/WalletReducer.kt

@@ -16,12 +16,24 @@ import com.tangem.tap.domain.extensions.getArtworkUrl
 import com.tangem.tap.domain.getFirstToken
 import com.tangem.tap.domain.tokens.BlockchainNetwork
 import com.tangem.tap.features.wallet.models.WalletRent
-import com.tangem.tap.features.wallet.redux.*
+import com.tangem.tap.features.wallet.redux.AddressData
+import com.tangem.tap.features.wallet.redux.Artwork
+import com.tangem.tap.features.wallet.redux.Currency
+import com.tangem.tap.features.wallet.redux.ErrorType
+import com.tangem.tap.features.wallet.redux.ProgressState
+import com.tangem.tap.features.wallet.redux.TradeCryptoState
+import com.tangem.tap.features.wallet.redux.WalletAction
+import com.tangem.tap.features.wallet.redux.WalletAddresses
+import com.tangem.tap.features.wallet.redux.WalletData
+import com.tangem.tap.features.wallet.redux.WalletDialog
+import com.tangem.tap.features.wallet.redux.WalletMainButton
+import com.tangem.tap.features.wallet.redux.WalletState
+import com.tangem.tap.features.wallet.redux.WalletStore
 import com.tangem.tap.features.wallet.ui.BalanceStatus
 import com.tangem.tap.features.wallet.ui.BalanceWidgetData
 import com.tangem.tap.store
-import org.rekotlin.Action
 import java.math.BigDecimal
+import org.rekotlin.Action
 
 class WalletReducer {
     companion object {
@@ -436,9 +448,6 @@ private fun setMultiWalletFiatRate(
 
     return state
         .updateWalletsData(newWalletsData)
-        .updateTotalBalance(
-            totalBalance = obtainTotalBalance(newWalletsData, appCurrency)
-        )
 }
 
 private fun setSingleWalletFiatRate(

app/src/main/java/com/tangem/tap/features/wallet/ui/wallet/MultiWalletView.kt

@@ -2,6 +2,7 @@ package com.tangem.tap.features.wallet.ui.wallet
 
 import android.app.Dialog
 import android.view.View
+import androidx.core.view.isVisible
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.tangem.common.card.Card
 import com.tangem.domain.common.TapWorkarounds.derivationStyle
@@ -129,29 +130,28 @@ class MultiWalletView : WalletView {
         binding: FragmentWalletBinding,
         totalBalance: TotalBalance?,
     ) = with(binding.lCardTotalBalance) {
-        if (totalBalance == null) {
-            this.root.hide()
-            return@with
-        }
+        root.isVisible = totalBalance != null
+        if (totalBalance != null) {
+            tvBalance.animateVisibility(
+                show = totalBalance.state != TotalBalance.State.Loading,
+                hiddenVisibility = View.INVISIBLE
+            )
+            pbLoading.animateVisibility(
+                show = totalBalance.state == TotalBalance.State.Loading
+            )
+            tvProcessing.animateVisibility(
+                show = totalBalance.state == TotalBalance.State.SomeTokensFailed
+            )
 
-        tvBalance.animateVisibility(
-            show = totalBalance.state != TotalBalance.State.Loading,
-            hiddenVisibility = View.INVISIBLE
-        )
-        pbLoading.animateVisibility(
-            show = totalBalance.state == TotalBalance.State.Loading
-        )
-        tvProcessing.animateVisibility(
-            show = totalBalance.state == TotalBalance.State.SomeTokensFailed
-        )
+            tvBalance.text = if (totalBalance.state == TotalBalance.State.SomeTokensFailed) "—"
+            else totalBalance.fiatAmount.formatAmountAsSpannedString(
+                currencySymbol = totalBalance.fiatCurrency.symbol
+            )
+            tvCurrencyName.text = totalBalance.fiatCurrency.code
 
-        tvBalance.text = totalBalance.fiatAmount.formatAmountAsSpannedString(
-            currencySymbol = totalBalance.fiatCurrency.symbol
-        )
-        tvCurrencyName.text = totalBalance.fiatCurrency.code
-
-        tvCurrencyName.setOnClickListener {
-            store.dispatch(WalletAction.AppCurrencyAction.ChooseAppCurrency)
+            tvCurrencyName.setOnClickListener {
+                store.dispatch(WalletAction.AppCurrencyAction.ChooseAppCurrency)
+            }
         }
     }