Updated on 2026-08-14

features/onboarding-v2/impl/src/main/kotlin/com/tangem/features/onboarding/v2/multiwallet/impl/child/seedphrase/model/MultiWalletSeedPhraseModel.kt

@@ -6,6 +6,7 @@ import com.tangem.core.decompose.di.ComponentScoped
 import com.tangem.core.decompose.model.Model
 import com.tangem.core.decompose.model.ParamsContainer
 import com.tangem.core.navigation.url.UrlOpener
+import com.tangem.crypto.bip39.Mnemonic
 import com.tangem.domain.card.repository.CardRepository
 import com.tangem.domain.feedback.GetCardInfoUseCase
 import com.tangem.domain.feedback.SendFeedbackEmailUseCase
@@ -26,6 +27,9 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
+// =============================================
+// | DON'T FIXME  !!! MODIFY WITH CAUTION !!!  |
+// =============================================
 @Suppress("LongParameterList")
 @ComponentScoped
 internal class MultiWalletSeedPhraseModel @Inject constructor(
@@ -45,21 +49,40 @@ internal class MultiWalletSeedPhraseModel @Inject constructor(
     private val _uiState = MutableStateFlow(getStartState())
 
     private val generateSeedPhraseUiStateBuilder = GenerateSeedPhraseUiStateBuilder(
-        state = state,
         updateUiState = { block -> updateUiStateSpecific(block) },
         onContinue = ::openWordsCheck,
+
+        // =============================================
+        // | DON'T FIXME  !!! MODIFY WITH CAUTION !!!  |
+        // =============================================
+        changeWords24Option = { state.update { it.copy(words24Option = it.words24Option) } },
+        // =============================================
     )
 
     private val seedPhraseCheckUiStateBuilder = SeedPhraseCheckUiStateBuilder(
-        state = state,
+        currentState = { state.value },
         currentUiState = { _uiState.value },
         updateUiState = { block -> updateUiStateSpecific(block) },
-        importWallet = ::importWallet,
+        readyToImport = { ready -> state.update { it.copy(readyToImport = ready) } },
+
+        // =============================================
+        // | DON'T FIXME  !!! MODIFY WITH CAUTION !!!  |
+        // =============================================
+        importWallet = importWallet@{
+            importWallet(
+                mnemonic = if (state.value.words24Option) {
+                    state.value.generatedWords24 ?: return@importWallet
+                } else {
+                    state.value.generatedWords12 ?: return@importWallet
+                },
+                passphrase = null,
+            )
+        },
+        // =============================================
     )
 
     private val importSeedPhraseUiStateBuilder = ImportSeedPhraseUiStateBuilder(
         modelScope = modelScope,
-        state = state,
         mnemonicRepository = mnemonicRepository,
         updateUiState = { block -> updateUiStateSpecific(block) },
         importWallet = ::importWallet,
@@ -133,12 +156,12 @@ internal class MultiWalletSeedPhraseModel @Inject constructor(
         }
     }
 
-    private fun importWallet(shouldReset: Boolean = false) {
-        // TODO make stateless [REDACTED_TASK_KEY]
+    // =============================================
+    // | DON'T FIXME  !!! MODIFY WITH CAUTION !!!  |
+    // =============================================
+    private fun importWallet(mnemonic: Mnemonic, passphrase: String?) {
         val currentState = state.value
-        val mnemonic = currentState.importedMnemonic
-            ?: (if (currentState.words24Option) currentState.generatedWords24 else currentState.generatedWords12)
-            ?: return
+        if (currentState.readyToImport.not()) return
 
         val scanResponse = params.parentParams.scanResponse
 
@@ -146,8 +169,8 @@ internal class MultiWalletSeedPhraseModel @Inject constructor(
             val result = tangemSdkManager.importWallet(
                 scanResponse = scanResponse,
                 mnemonic = mnemonic.mnemonicComponents.joinToString(" "),
-                passphrase = currentState.passphrase,
-                shouldReset = shouldReset,
+                passphrase = passphrase,
+                shouldReset = false,
             )
 
             when (result) {
@@ -176,6 +199,7 @@ internal class MultiWalletSeedPhraseModel @Inject constructor(
             }
         }
     }
+    // =============================================
 
     private fun handleActivationError() {
         updateDialog(
@@ -187,7 +211,16 @@ internal class MultiWalletSeedPhraseModel @Inject constructor(
         )
     }
 
-    private fun resetCard() = importWallet(true)
+    private fun resetCard() {
+        val scanResponse = params.parentParams.scanResponse
+
+        modelScope.launch {
+            tangemSdkManager.resetToFactorySettings(
+                cardId = scanResponse.card.cardId,
+                allowsRequestAccessCodeFromRepository = true,
+            )
+        }
+    }
 
     fun navigateToSupportScreen() {
         modelScope.launch {

features/onboarding-v2/impl/src/main/kotlin/com/tangem/features/onboarding/v2/multiwallet/impl/child/seedphrase/model/SeedPhraseState.kt

@@ -6,7 +6,5 @@ data class SeedPhraseState(
     val generatedWords12: Mnemonic? = null,
     val generatedWords24: Mnemonic? = null,
     val words24Option: Boolean = false,
-    val importedMnemonic: Mnemonic? = null,
-    val passphrase: String? = null,
     val readyToImport: Boolean = false,
 )

features/onboarding-v2/impl/src/main/kotlin/com/tangem/features/onboarding/v2/multiwallet/impl/child/seedphrase/model/builder/GenerateSeedPhraseUiStateBuilder.kt

@@ -1,15 +1,12 @@
 package com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.model.builder
 
 import com.tangem.crypto.bip39.Mnemonic
-import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.model.SeedPhraseState
 import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.ui.state.MultiWalletSeedPhraseUM
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.toImmutableList
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.update
 
 internal class GenerateSeedPhraseUiStateBuilder(
-    private val state: MutableStateFlow<SeedPhraseState>,
+    private val changeWords24Option: (Boolean) -> Unit,
     private val updateUiState: (
         (MultiWalletSeedPhraseUM.GenerateSeedPhrase) -> MultiWalletSeedPhraseUM.GenerateSeedPhrase,
     ) -> Unit,
@@ -25,7 +22,7 @@ internal class GenerateSeedPhraseUiStateBuilder(
         }.toImmutableList()
 
         return MultiWalletSeedPhraseUM.GenerateSeedPhrase(
-            words24OptionSelected = state.value.words24Option,
+            words24OptionSelected = false,
             words = words12,
             onWords24OptionSwitch = { switchType(words12, words24) },
             onContinueClick = onContinue,
@@ -37,7 +34,7 @@ internal class GenerateSeedPhraseUiStateBuilder(
         generatedWords24: ImmutableList<MultiWalletSeedPhraseUM.GenerateSeedPhrase.MnemonicGridItem>,
     ) {
         updateUiState { uiSt ->
-            state.update { it.copy(words24Option = uiSt.words24OptionSelected.not()) }
+            changeWords24Option(uiSt.words24OptionSelected.not())
 
             uiSt.copy(
                 words24OptionSelected = uiSt.words24OptionSelected.not(),

features/onboarding-v2/impl/src/main/kotlin/com/tangem/features/onboarding/v2/multiwallet/impl/child/seedphrase/model/builder/ImportSeedPhraseUiStateBuilder.kt

@@ -5,28 +5,27 @@ import androidx.compose.ui.text.input.TextFieldValue
 import com.tangem.common.core.TangemSdkError
 import com.tangem.core.ui.components.bottomsheets.TangemBottomSheetConfig
 import com.tangem.core.ui.extensions.resourceReference
+import com.tangem.crypto.bip39.Mnemonic
 import com.tangem.crypto.bip39.MnemonicErrorResult
 import com.tangem.features.onboarding.v2.impl.R
 import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.model.MnemonicRepository
-import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.model.SeedPhraseState
 import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.ui.state.MultiWalletSeedPhraseUM
 import com.tangem.utils.coroutines.JobHolder
 import com.tangem.utils.coroutines.saveIn
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 
 internal class ImportSeedPhraseUiStateBuilder(
     private val modelScope: CoroutineScope,
-    private val state: MutableStateFlow<SeedPhraseState>,
     private val mnemonicRepository: MnemonicRepository,
     private val updateUiState: ((MultiWalletSeedPhraseUM.Import) -> MultiWalletSeedPhraseUM.Import) -> Unit,
-    private val importWallet: () -> Unit,
+    private val importWallet: (mnemonic: Mnemonic, passphrase: String?) -> Unit,
 ) {
     private val wordsCheckJobHolder = JobHolder()
+    private var importedMnemonic: Mnemonic? = null
+    private var passphrase: String? = null
 
     fun getState(): MultiWalletSeedPhraseUM {
         return MultiWalletSeedPhraseUM.Import(
@@ -38,15 +37,21 @@ internal class ImportSeedPhraseUiStateBuilder(
                 }
             },
             passPhraseChange = {
-                state.update { st -> st.copy(passphrase = it.text) }
+                passphrase = it.text
                 updateUiState { state -> state.copy(passPhrase = it) }
             },
             onPassphraseInfoClick = ::showInfoBS,
-            createWalletClick = importWallet,
+            createWalletClick = ::onCreateWallet,
             onSuggestionClick = { word -> addSuggestedWord(word) },
         )
     }
 
+    private fun onCreateWallet() {
+        val mnemonic = importedMnemonic ?: return
+        val passphrase = passphrase?.takeIf { it.isNotEmpty() }
+        importWallet(mnemonic, passphrase)
+    }
+
     private fun addSuggestedWord(word: String) {
         updateUiState { st ->
             val text = st.words.text
@@ -102,7 +107,7 @@ internal class ImportSeedPhraseUiStateBuilder(
             )
         }
 
-        state.value = state.value.copy(importedMnemonic = null)
+        importedMnemonic = null
 
         val text = wordsField.text
         val wordsFromText = text.split(" ").filter { it.isNotBlank() }.map { it.trim() }
@@ -120,7 +125,7 @@ internal class ImportSeedPhraseUiStateBuilder(
 
         try {
             val mnemonic = mnemonicRepository.generateMnemonic(text)
-            state.value = state.value.copy(importedMnemonic = mnemonic)
+            importedMnemonic = mnemonic
             updateUiState {
                 it.copy(
                     invalidWords = emptyList<String>().toImmutableList(),

features/onboarding-v2/impl/src/main/kotlin/com/tangem/features/onboarding/v2/multiwallet/impl/child/seedphrase/model/builder/SeedPhraseCheckUiStateBuilder.kt

@@ -4,16 +4,15 @@ import androidx.compose.ui.text.input.TextFieldValue
 import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.model.SeedPhraseState
 import com.tangem.features.onboarding.v2.multiwallet.impl.child.seedphrase.ui.state.MultiWalletSeedPhraseUM
 import kotlinx.collections.immutable.toImmutableList
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.update
 
 internal class SeedPhraseCheckUiStateBuilder(
-    private val state: MutableStateFlow<SeedPhraseState>,
+    private val currentState: () -> SeedPhraseState,
     private val currentUiState: () -> MultiWalletSeedPhraseUM,
     private val updateUiState: (
         (MultiWalletSeedPhraseUM.GeneratedWordsCheck) -> MultiWalletSeedPhraseUM.GeneratedWordsCheck,
     ) -> Unit,
     private val importWallet: () -> Unit,
+    private val readyToImport: (Boolean) -> Unit,
 ) {
 
     @Suppress("MagicNumber")
@@ -43,7 +42,7 @@ internal class SeedPhraseCheckUiStateBuilder(
                         )
 
                         val allFieldsCorrect = newState.allFieldsCorrect()
-                        state.update { it.copy(readyToImport = allFieldsCorrect) }
+                        readyToImport(allFieldsCorrect)
 
                         newState.copy(
                             createWalletButtonEnabled = allFieldsCorrect,
@@ -89,7 +88,7 @@ internal class SeedPhraseCheckUiStateBuilder(
     }
 
     private fun checkWordField(word: String, shownIndex: Int): Boolean {
-        val currentState = state.value
+        val currentState = currentState()
 
         currentState.generatedWords12 ?: return false
         currentState.generatedWords24 ?: return false