Updated error handling in login screen

Author: srikanth-vg

GoInfoGame/GoInfoGame/Login/View/PosmLogin.swift

@@ -94,11 +94,13 @@ struct PosmLoginView: View {
                                     } else {
                                         print("Missing credentials in Keychain")
                                         viewModel.hasLoginFailed = true
+                                        viewModel.loginFailedMessage = "Invalid Credentials"
                                     }
 
                                 case .failure(let message), .unavailable(let message):
                                     print("Biometric login failed: \(message)")
                                     viewModel.hasLoginFailed = true
+                                    viewModel.loginFailedMessage = message
                                 }
                             }
                         }) {
@@ -109,7 +111,7 @@ struct PosmLoginView: View {
                     }
 
                     if viewModel.hasLoginFailed {
-                        Text("Invalid Credentials")
+                        Text(viewModel.loginFailedMessage ??  "Invalid Credentials")
                             .foregroundColor(.red)
                             .padding(.top, 10)
                     }
@@ -127,7 +129,7 @@ struct PosmLoginView: View {
                 InitialView()
             }
         }
-        .alert("Invalid Credentials", isPresented: $viewModel.shouldShowValidationAlert) {
+        .alert(viewModel.errorMessage ?? "Invalid Credentials", isPresented: $viewModel.shouldShowValidationAlert) {
             Button("OK", role: .cancel) { }
         }
         .onReceive(NotificationCenter.default.publisher(for: Notification.Name("SessionExpired"))) { notification in

GoInfoGame/GoInfoGame/Login/ViewModel/PosmLoginViewModel.swift

@@ -13,6 +13,7 @@ class PosmLoginViewModel: ObservableObject {
     @Published var username: String = ""
     @Published var password: String = ""
     @Published var hasLoginFailed: Bool = false
+    @Published var loginFailedMessage: String? = nil
     @Published var isLoginSuccess: Bool = false
     @Published var errorMessage: String?
     @Published var isLoading = false
@@ -28,6 +29,7 @@ class PosmLoginViewModel: ObservableObject {
         } else if password.isEmpty {
             errorMessage = "Password is required."
         } else {
+            errorMessage = nil
             return true
         }