From 7f8592c0078c83a821d89a2af8890d771b6ebf54 Mon Sep 17 00:00:00 2001
From: Tangem <git@tangem.com>
Date: Mon, 8 Dec 2025 19:20:12 +0300
Subject: [PATCH] Updated on 2026-08-14

---
 .../tap/di/domain/HotWalletDomainModule.kt    |  7 +++
 .../hotwallet/IsAccessCodeSimpleUseCase.kt    | 13 ++++++
 .../hotwallet/accesscode/AccessCodeModel.kt   | 43 ++++++++++++++++---
 3 files changed, 57 insertions(+), 6 deletions(-)
 create mode 100644 domain/hot-wallet/src/main/kotlin/com/tangem/domain/hotwallet/IsAccessCodeSimpleUseCase.kt

diff --git a/app/src/main/java/com/tangem/tap/di/domain/HotWalletDomainModule.kt b/app/src/main/java/com/tangem/tap/di/domain/HotWalletDomainModule.kt
index 6eb397fb4e..8c8404b2d3 100644
--- a/app/src/main/java/com/tangem/tap/di/domain/HotWalletDomainModule.kt
+++ b/app/src/main/java/com/tangem/tap/di/domain/HotWalletDomainModule.kt
@@ -2,6 +2,7 @@ package com.tangem.tap.di.domain
 
 import com.tangem.domain.hotwallet.GetAccessCodeSkippedUseCase
 import com.tangem.domain.hotwallet.IsHotWalletCreationSupported
+import com.tangem.domain.hotwallet.IsAccessCodeSimpleUseCase
 import com.tangem.domain.hotwallet.SetAccessCodeSkippedUseCase
 import com.tangem.domain.hotwallet.repository.HotWalletRepository
 import dagger.Module
@@ -26,6 +27,12 @@ internal object HotWalletDomainModule {
         return SetAccessCodeSkippedUseCase(hotWalletRepository)
     }
 
+    @Provides
+    @Singleton
+    fun provideIsAccessCodeSimpleUseCase(): IsAccessCodeSimpleUseCase {
+        return IsAccessCodeSimpleUseCase()
+    }
+
     @Provides
     @Singleton
     fun provideIsWalletCreationSupportedUseCase(
diff --git a/domain/hot-wallet/src/main/kotlin/com/tangem/domain/hotwallet/IsAccessCodeSimpleUseCase.kt b/domain/hot-wallet/src/main/kotlin/com/tangem/domain/hotwallet/IsAccessCodeSimpleUseCase.kt
new file mode 100644
index 0000000000..04751ad562
--- /dev/null
+++ b/domain/hot-wallet/src/main/kotlin/com/tangem/domain/hotwallet/IsAccessCodeSimpleUseCase.kt
@@ -0,0 +1,13 @@
+package com.tangem.domain.hotwallet
+
+class IsAccessCodeSimpleUseCase {
+    operator fun invoke(accessCode: String): Boolean {
+        return isSequential(accessCode) || isRepeatedCharacters(accessCode)
+    }
+
+    fun isSequential(code: String): Boolean = code.length > 1 &&
+        (code.zipWithNext().all { it.second == it.first + 1 } ||
+            code.zipWithNext().all { it.second == it.first - 1 })
+
+    fun isRepeatedCharacters(code: String): Boolean = code.isNotEmpty() && code.all { it == code.first() }
+}
\ No newline at end of file
diff --git a/features/hot-wallet/impl/src/main/kotlin/com/tangem/features/hotwallet/accesscode/AccessCodeModel.kt b/features/hot-wallet/impl/src/main/kotlin/com/tangem/features/hotwallet/accesscode/AccessCodeModel.kt
index 93c0b75006..595dff3477 100644
--- a/features/hot-wallet/impl/src/main/kotlin/com/tangem/features/hotwallet/accesscode/AccessCodeModel.kt
+++ b/features/hot-wallet/impl/src/main/kotlin/com/tangem/features/hotwallet/accesscode/AccessCodeModel.kt
@@ -11,6 +11,7 @@ import com.tangem.core.ui.extensions.resourceReference
 import com.tangem.core.ui.message.DialogMessage
 import com.tangem.core.ui.message.EventMessageAction
 import com.tangem.domain.common.wallets.UserWalletsListRepository
+import com.tangem.domain.hotwallet.IsAccessCodeSimpleUseCase
 import com.tangem.domain.models.wallet.UserWallet
 import com.tangem.domain.models.wallet.UserWalletId
 import com.tangem.domain.settings.CanUseBiometryUseCase
@@ -56,6 +57,7 @@ internal class AccessCodeModel @Inject constructor(
     private val shouldShowAskBiometryUseCase: ShouldShowAskBiometryUseCase,
     private val setAskBiometryShownUseCase: SetAskBiometryShownUseCase,
     private val canUseBiometryUseCase: CanUseBiometryUseCase,
+    private val isAccessCodeSimpleUseCase: IsAccessCodeSimpleUseCase,
     private val uiMessageSender: UiMessageSender,
 ) : Model() {
 
@@ -117,16 +119,45 @@ internal class AccessCodeModel @Inject constructor(
         modelScope.launch {
             delay(timeMillis = SUCCESS_DISPLAY_DURATION_MS)
 
-            params.callbacks.onNewAccessCodeInput(params.userWalletId, uiState.value.accessCode)
-
-            uiState.update { currentState ->
-                currentState.copy(
-                    accessCode = "",
-                )
+            if (isAccessCodeSimpleUseCase(uiState.value.accessCode)) {
+                showSimpleAccessCodeDialog()
+            } else {
+                setNewCode()
             }
         }
     }
 
+    private fun setNewCode() {
+        params.callbacks.onNewAccessCodeInput(params.userWalletId, uiState.value.accessCode)
+
+        uiState.update { currentState ->
+            currentState.copy(
+                accessCode = "",
+            )
+        }
+    }
+
+    private fun showSimpleAccessCodeDialog() {
+        uiMessageSender.send(
+            DialogMessage(
+                title = resourceReference(R.string.access_code_alert_validation_title),
+                message = resourceReference(R.string.access_code_alert_validation_description),
+                firstAction = EventMessageAction(
+                    title = resourceReference(R.string.access_code_alert_validation_cancel),
+                    onClick = {
+                        uiState.update { currentState ->
+                            currentState.copy(onAccessCodeChange = ::onAccessCodeChange)
+                        }
+                    },
+                ),
+                secondAction = EventMessageAction(
+                    title = resourceReference(R.string.access_code_alert_validation_ok),
+                    onClick = ::setNewCode,
+                ),
+            ),
+        )
+    }
+
     private suspend fun showErrorAndReset() {
         uiState.update { currentState ->
             currentState.copy(