From 1d8ada1fc032bc83f54d10dc782486269d91563e Mon Sep 17 00:00:00 2001
From: Ermat <ealymbaev@gmail.com>
Date: Fri, 29 Sep 2023 15:51:31 +0600
Subject: [PATCH] Validate if new passcode is already used

---
 .../Modules/Passcode/Manage/SetPasscodeViewModel.swift    | 8 ++++++++
 .../UnstoppableWallet/en.lproj/Localizable.strings        | 3 ++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/UnstoppableWallet/UnstoppableWallet/Modules/Passcode/Manage/SetPasscodeViewModel.swift b/UnstoppableWallet/UnstoppableWallet/Modules/Passcode/Manage/SetPasscodeViewModel.swift
index 5f7ea5d919..45b85b8ed9 100644
--- a/UnstoppableWallet/UnstoppableWallet/Modules/Passcode/Manage/SetPasscodeViewModel.swift
+++ b/UnstoppableWallet/UnstoppableWallet/Modules/Passcode/Manage/SetPasscodeViewModel.swift
@@ -1,4 +1,5 @@
 import Combine
+import UIKit
 
 class SetPasscodeViewModel: ObservableObject {
     let passcodeLength = 6
@@ -17,6 +18,7 @@ class SetPasscodeViewModel: ObservableObject {
             }
         }
     }
+
     @Published var shakeTrigger: Int = 0
 
     let passcodeManager: PasscodeManager
@@ -47,6 +49,12 @@ class SetPasscodeViewModel: ObservableObject {
                 syncDescription()
                 errorText = "set_passcode.invalid_confirmation".localized
             }
+        } else if passcodeManager.has(passcode: passcode) {
+            passcode = ""
+            errorText = "set_passcode.already_used".localized
+
+            shakeTrigger += 1
+            UINotificationFeedbackGenerator().notificationOccurred(.error)
         } else {
             enteredPasscode = passcode
             passcode = ""
diff --git a/UnstoppableWallet/UnstoppableWallet/en.lproj/Localizable.strings b/UnstoppableWallet/UnstoppableWallet/en.lproj/Localizable.strings
index 7e8f5f63f3..92c631324b 100644
--- a/UnstoppableWallet/UnstoppableWallet/en.lproj/Localizable.strings
+++ b/UnstoppableWallet/UnstoppableWallet/en.lproj/Localizable.strings
@@ -1131,7 +1131,8 @@ Go to Settings - > %@ and allow access to the camera.";
 
 // Set Passcode
 
-"set_passcode.invalid_confirmation" = "Invalid Confirmation";
+"set_passcode.invalid_confirmation" = "Invalid confirmation";
+"set_passcode.already_used" = "This passcode is already being used";
 
 // Unlock