From 384a9b05b198b327e97c7ea9fc8e73dd84c37496 Mon Sep 17 00:00:00 2001
From: Joel Thomas <joel.thomas@trenser.com>
Date: Tue, 16 Jun 2026 02:52:55 +0530
Subject: [PATCH] Somewhat working

---
 .../Trenser.VehicleServiceSystem.vcxproj      |  2 +
 .../AuthenticationManagementService.cpp       | 14 +++-
 .../views/AdminMenu.cpp                       |  7 ++
 .../views/AdminMenu.h                         |  3 +-
 .../views/CustomerMenu.cpp                    |  8 ++
 .../views/CustomerMenu.h                      |  3 +-
 .../views/Menu.cpp                            | 84 +++++++++++++++++++
 .../Trenser.VehicleServiceSystem/views/Menu.h | 30 +++++++
 .../views/TechnicianMenu.cpp                  |  8 ++
 .../views/TechnicianMenu.h                    |  3 +-
 10 files changed, 157 insertions(+), 5 deletions(-)
 create mode 100644 Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.cpp
 create mode 100644 Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.h

diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj
index 7ae72bd..e554d2b 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj
@@ -149,6 +149,7 @@
     <ClCompile Include="utilities\Validator.cpp" />
     <ClCompile Include="views\AdminMenu.cpp" />
     <ClCompile Include="views\CustomerMenu.cpp" />
+    <ClCompile Include="views\Menu.cpp" />
     <ClCompile Include="views\TechnicianMenu.cpp" />
     <ClCompile Include="views\UserInterface.cpp" />
   </ItemGroup>
@@ -193,6 +194,7 @@
     <ClInclude Include="utilities\Vector.h" />
     <ClInclude Include="views\AdminMenu.h" />
     <ClInclude Include="views\CustomerMenu.h" />
+    <ClInclude Include="views\Menu.h" />
     <ClInclude Include="views\MenuHelper.h" />
     <ClInclude Include="views\TechnicianMenu.h" />
     <ClInclude Include="views\UserInterface.h" />
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/AuthenticationManagementService.cpp b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/AuthenticationManagementService.cpp
index ac5682d..094289a 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/AuthenticationManagementService.cpp
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/AuthenticationManagementService.cpp
@@ -43,11 +43,21 @@ bool AuthenticationManagementService::login(const std::string& username, const s
 					user->getId(),
 					[]()
 					{
-						std::cout << "USER_DISABLED event received" << std::endl;
+						HANDLE eventHandle = OpenEventA(EVENT_MODIFY_STATE, FALSE, "VehicleServiceSystem_AccountDisabled");
+						if (eventHandle)
+						{
+							SetEvent(eventHandle);
+							CloseHandle(eventHandle);
+						}
 					},
 					[]()
 					{
-						std::cout << "NOTIFICATION_AVAILABLE event received" << std::endl;
+						HANDLE eventHandle = OpenEventA(EVENT_MODIFY_STATE, FALSE, "VehicleServiceSystem_NotificationAvailable");
+						if (eventHandle)
+						{
+							SetEvent(eventHandle);
+							CloseHandle(eventHandle);
+						}
 					});
 				return true;
 			}
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp
index 76a1901..c236823 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp
@@ -30,10 +30,16 @@ Return type: void
 */
 void AdminMenu::showMenu()
 {
+	startEventListener();
     while (true)
     {
         try
         {
+			if (!m_isMenuActive)
+			{
+				logout();
+				break;
+			}
             int choice;
             util::clear();
             std::cout << "Admin Menu"
@@ -68,6 +74,7 @@ void AdminMenu::showMenu()
             util::pressEnter();
         }
     }
+	stopEventListener();
 }
 
 /*
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.h b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.h
index bdffcb6..b5f0085 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.h
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.h
@@ -9,8 +9,9 @@ Date:19-May-2026
 
 #pragma once
 #include "Controller.h"
+#include "Menu.h"
 
-class AdminMenu
+class AdminMenu : Menu
 {
 private:
     Controller m_controller;
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.cpp b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.cpp
index 0d60f97..017106b 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.cpp
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.cpp
@@ -32,10 +32,17 @@ Return type: void
 */
 void CustomerMenu::showMenu()
 {
+
+    startEventListener();
     while (true)
     {
         try
         {
+            if (!m_isMenuActive)
+            {
+                logout();
+                break;
+            }
             int choice;
             util::clear();
             std::cout << "Customer Menu"
@@ -62,6 +69,7 @@ void CustomerMenu::showMenu()
             util::pressEnter();
         }
     }
+    stopEventListener();
 }
 
 /*
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.h b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.h
index d491720..2791295 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.h
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.h
@@ -9,9 +9,10 @@ Date:19-May-2026
 */
 
 #pragma once
+#include "Menu.h"
 #include "Controller.h"
 
-class CustomerMenu
+class CustomerMenu : Menu
 {
 private:
     Controller m_controller;
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.cpp b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.cpp
new file mode 100644
index 0000000..486a684
--- /dev/null
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.cpp
@@ -0,0 +1,84 @@
+#include "Menu.h"
+
+Menu::Menu()
+    :
+    m_isMenuActive(false),
+    m_hasNewNotifications(false),
+    m_accountDisabledEvent(NULL),
+    m_notificationAvailableEvent(NULL),
+    m_shutdownEvent(NULL) {}
+
+Menu::~Menu()
+{
+    stopEventListener();
+}
+
+void Menu::startEventListener()
+{
+    if (m_isMenuActive.load())
+    {
+        return;
+    }
+    m_isMenuActive.store(true);
+    m_hasNewNotifications.store(false);
+    m_accountDisabledEvent = CreateEventA(NULL, FALSE, FALSE, "VehicleServiceSystem_AccountDisabled");
+    m_notificationAvailableEvent = CreateEventA(NULL, FALSE, FALSE, "VehicleServiceSystem_NotificationAvailable");
+    m_shutdownEvent = CreateEventA(NULL, FALSE, FALSE, NULL);
+    m_eventListenerThread = std::thread(&Menu::eventListenerLoop, this);
+}
+
+void Menu::eventListenerLoop()
+{
+    HANDLE handles[3];
+    handles[0] = m_accountDisabledEvent;
+    handles[1] = m_notificationAvailableEvent;
+    handles[2] = m_shutdownEvent;
+    while (m_isMenuActive.load())
+    {
+        DWORD result = WaitForMultipleObjects(3, handles, FALSE, INFINITE);
+        switch (result)
+        {
+        case WAIT_OBJECT_0:
+            m_isMenuActive.store(false);
+            MessageBoxA(
+                NULL,
+                "Your account has been disabled.",
+                "Account Disabled",
+                MB_OK | MB_ICONWARNING);
+            break;
+        case WAIT_OBJECT_0 + 1:
+            m_hasNewNotifications.store(true);
+            break;
+        case WAIT_OBJECT_0 + 2:
+            return;
+        }
+    }
+}
+
+void Menu::stopEventListener()
+{
+    m_isMenuActive.store(false);
+    if (m_shutdownEvent)
+    {
+        SetEvent(m_shutdownEvent);
+    }
+    if (m_eventListenerThread.joinable())
+    {
+        m_eventListenerThread.join();
+    }
+    if (m_accountDisabledEvent)
+    {
+        CloseHandle(m_accountDisabledEvent);
+    }
+    if (m_notificationAvailableEvent)
+    {
+        CloseHandle(m_notificationAvailableEvent);
+    }
+    if (m_shutdownEvent)
+    {
+        CloseHandle(m_shutdownEvent);
+    }
+    m_accountDisabledEvent = NULL;
+    m_notificationAvailableEvent = NULL;
+    m_shutdownEvent = NULL;
+}
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.h b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.h
new file mode 100644
index 0000000..169a47d
--- /dev/null
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.h
@@ -0,0 +1,30 @@
+/*
+File: Menu.h
+Description: Base class providing common event listener functionality
+             for all menu implementations.
+Author: Trenser
+Date:16-Jun-2026
+*/
+
+#pragma once
+
+#include <windows.h>
+#include <atomic>
+#include <thread>
+
+class Menu
+{
+protected:
+    std::atomic<bool> m_isMenuActive;
+    std::atomic<bool> m_hasNewNotifications;
+    HANDLE m_accountDisabledEvent;
+    HANDLE m_notificationAvailableEvent;
+    HANDLE m_shutdownEvent;
+    std::thread m_eventListenerThread;
+    void startEventListener();
+    void stopEventListener();
+    void eventListenerLoop();
+public:
+    Menu();
+    virtual ~Menu();
+};
\ No newline at end of file
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.cpp b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.cpp
index 8ff3e12..7105369 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.cpp
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.cpp
@@ -27,10 +27,16 @@ Returns:
 */
 void TechnicianMenu::showMenu()
 {
+    startEventListener();
     while (true)
     {
         try
         {
+            if (!m_isMenuActive)
+            {
+                logout();
+                break;
+            }
             int choice;
             util::clear();
             std::cout << "Technician Menu"
@@ -45,6 +51,7 @@ void TechnicianMenu::showMenu()
             {
                 break;
             }
+            stopEventListener();
         }
         catch (const std::exception& e)
         {
@@ -52,6 +59,7 @@ void TechnicianMenu::showMenu()
             util::pressEnter();
         }
     }
+    stopEventListener();
 }
 
 /*
diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.h b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.h
index 2d118a0..27ea617 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.h
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.h
@@ -9,8 +9,9 @@ Date:19-May-2026
 
 #pragma once
 #include "Controller.h"
+#include "Menu.h"
 
-class TechnicianMenu
+class TechnicianMenu : Menu
 {
 private:
     Controller m_controller;