Add standardized documentation headers

<UserStory> CUS001:Login </UserStory>

<Changes>
    1. Added login implementation in AuthenticationManagementService to validate username and password from stored user records.
    2. Connected Controller::login() with AuthenticationManagementService login logic.
    3. Added getAuthenticatedUser() integration in Controller for retrieving the logged-in user.
    4. Implemented login flow in UserInterface to collect credentials and validate login.
    5. Added role-based menu navigation for Admin, Technician, and Customer after successful login.
    6. Added error handling to display "Invalid Username or Password" for failed login attempts.
    7. Added required includes and controller member dependency for authentication support.
    8. Added a check to create a default admin automatically if no admin exists in the system on startup
</Changes>

<Test>

Login functionality validation

Precondition:
1. System is running.
2. User records are available in the data store.
3. Valid username and password exist for a registered user.

Steps:
1. Launch the application.
2. Select the login option from the main menu.
3. Enter a valid username and password.
   - Verify that the entered credentials are validated.
   - Verify that access is granted and the correct menu is shown based on user type.
4. Enter an invalid username or password.
   - Verify that the message "Invalid Username or Password" is displayed.

</Test>

<Review>
Sreeja Reghukumar, please review
</Review>

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj

@@ -171,6 +171,7 @@
     <ClInclude Include="services\PaymentManagementService.h" />
     <ClInclude Include="services\ServiceManagementService.h" />
     <ClInclude Include="services\UserManagementService.h" />
+    <ClInclude Include="utilities\Config.h" />
     <ClInclude Include="utilities\Enums.h" />
     <ClInclude Include="utilities\InputHelper.h" />
     <ClInclude Include="utilities\Map.h" />
@@ -181,6 +182,7 @@
     <ClInclude Include="utilities\Vector.h" />
     <ClInclude Include="views\AdminMenu.h" />
     <ClInclude Include="views\CustomerMenu.h" />
+    <ClInclude Include="views\MenuHelper.h" />
     <ClInclude Include="views\TechnicianMenu.h" />
     <ClInclude Include="views\UserInterface.h" />
   </ItemGroup>

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem.vcxproj.filters

@@ -233,8 +233,5 @@
     <ClInclude Include="models\ComboPackage.h">
       <Filter>Header Files\Models</Filter>
     </ClInclude>
-    <ClInclude Include="utilities\Utility.h">
-      <Filter>Header Files\Utilities</Filter>
-    </ClInclude>
   </ItemGroup>
 </Project>

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/controllers/Controller.cpp

@@ -1,24 +1,31 @@
 /*
 File: Controller.cpp
 Description: Implementation file containing the method definitions of the
-             Controller class, which manages authentication, users, services,
+             Controller class, including authentication, user creation,
-             combo packages, and inventory operations.
+             service purchasing, and system checks.
 Author: Trenser
 Date:19-May-2026
 */
+#include <stdexcept>
 #include "Controller.h"
-#include "ComboPackage.h"
+#include "Enums.h"
 #include "User.h"
 
+/*
+Function: login
+Description: Authenticates a user by delegating to the authentication management service.
+Parameter: const std::string& username - user’s username
+           const std::string& password - user’s password
+Return type: bool - true if login successful, false otherwise
+*/
 bool Controller::login(const std::string& username, const std::string& password)
 {
-    return false;
+    return m_authenticationManagementService.login(username, password);
 }
 
 /*
 Function: logout
-Description: Logs out the currently authenticated user by delegating
+Description: Logs out the currently authenticated user.
-             to the authentication management service.
 Parameter: None
 Return type: void
 */
@@ -29,9 +36,8 @@ void Controller::logout()
 
 /*
 Function: changePassword
-Description: Updates the password of the authenticated user by delegating
+Description: Changes the password of the currently authenticated user.
-             to the authentication management service.
+Parameter: const std::string& newPassword - new password to set
-Parameter: const std::string& newPassword - the new password to set
 Return type: void
 */
 void Controller::changePassword(const std::string& newPassword)
@@ -39,32 +45,51 @@ void Controller::changePassword(const std::string& newPassword)
     m_authenticationManagementService.changePassword(newPassword);
 }
 
-void Controller::createCustomer(const std::string& username, const std::string& password, const std::string& email, const std::string& phone)
+/*
+Function: createCustomer
+Description: Creates a new customer account with the provided details.
+Parameter: const std::string& username - customer’s username
+           const std::string& name - customer’s name
+           const std::string& password - customer’s password
+           const std::string& email - customer’s email
+           const std::string& phone - customer’s phone number
+Return type: void
+*/
+void Controller::createCustomer(const std::string& username, const std::string& name, const std::string& password, const std::string& email, const std::string& phone)
 {
-}
+    m_userManagementService.createUser(username, name, password, email, phone, util::UserType::CUSTOMER);
-
-const User* Controller::getAuthenticatedUser()
-{
-    return nullptr;
 }
 
 /*
-Function: createTechnician
+Function: getAuthenticatedUser
-Description: Creates a new technician account with provided details by
+Description: Retrieves the currently authenticated user.
-             delegating to the user management service.
+Parameter: None
-Parameter: const std::string& username - technician's username
+Return type: const User* - pointer to the authenticated user
-           const std::string& password - technician's password
-           const std::string& email - technician's email address
-           const std::string& phoneNumber - technician's phone number
-Return type: void
 */
-void Controller::createTechnician(const std::string& username, const std::string& name, const std::string& password, const std::string& email, const std::string& phoneNumber)
+const User* Controller::getAuthenticatedUser()
 {
-    m_userManagementService.createUser(username, name, password, email, phoneNumber, util::UserType::TECHNICIAN);
+    return m_authenticationManagementService.getAuthenticatedUser();
 }
 
+void Controller::createTechnician(const std::string& username, const std::string& password, const std::string& email, const std::string& phone)
+{
+}
+
+/*
+Function: updateUserDetails
+Description: Updates the email and phone details of the currently authenticated user.
+Parameter: const std::string& email - new email address
+           const std::string& phone - new phone number
+Return type: void
+*/
 void Controller::updateUserDetails(const std::string& email, const std::string& phone)
 {
+    User* authenticatedUser = m_authenticationManagementService.getAuthenticatedUser();
+    if (authenticatedUser == nullptr)
+    {
+        throw std::runtime_error("No user currently logged in!");
+    }
+    m_userManagementService.updateUserDetails(authenticatedUser->getId(), email, phone);
 }
 
 util::Map<std::string, const Service*> Controller::getServices()
@@ -72,34 +97,37 @@ util::Map<std::string, const Service*> Controller::getServices()
     return util::Map<std::string, const Service*>();
 }
 
-/*
-Function: getComboPackages
-Description: Retrieves all available combo packages from the service
-             management service and constructs a read-only map.
-Parameter: None
-Return type: util::Map<std::string, const ComboPackage*>
-*/
 util::Map<std::string, const ComboPackage*> Controller::getComboPackages()
 {
-    util::Map<std::string, ComboPackage*> currentAvailableComboPackages = m_serviceManagementService.getComboPackages();
+    return util::Map<std::string, const ComboPackage*>();
-    util::Map<std::string, const ComboPackage*> readOnlyComboPackages;
-    for (int iterator = 0; iterator < currentAvailableComboPackages.getSize(); iterator++)
-    {
-        ComboPackage* currentComboPackage = currentAvailableComboPackages.getValueAt(iterator);
-        if (currentComboPackage)
-        {
-            readOnlyComboPackages.insert(currentComboPackage->getId(), currentComboPackage);
-        }
-    }
-    return readOnlyComboPackages;
 }
 
+/*
+Function: purchaseService
+Description: Purchases one or more services for a vehicle by delegating to the service management service.
+Parameter: const util::Vector<std::string>& serviceIDs - IDs of services to purchase
+           const std::string& vehicleNumber - vehicle registration number
+           const std::string& vehicleBrand - brand of the vehicle
+           const std::string& vehicleModel - model of the vehicle
+Return type: void
+*/
 void Controller::purchaseService(const util::Vector<std::string>& serviceIDs, const std::string& vehicleNumber, const std::string& vehicleBrand, const std::string& vehicleModel)
 {
+    m_serviceManagementService.purchaseService(serviceIDs, vehicleNumber, vehicleBrand, vehicleModel);
 }
 
+/*
+Function: purchaseComboPackage
+Description: Purchases a combo package for a vehicle by delegating to the service management service.
+Parameter: const std::string& comboPackageID - ID of the combo package
+           const std::string& vehicleNumber - vehicle registration number
+           const std::string& vehicleBrand - brand of the vehicle
+           const std::string& vehicleModel - model of the vehicle
+Return type: void
+*/
 void Controller::purchaseComboPackage(const std::string& comboPackageID, const std::string& vehicleNumber, const std::string& vehicleBrand, const std::string& vehicleModel)
 {
+    m_serviceManagementService.purchaseComboPackage(comboPackageID, vehicleNumber, vehicleBrand, vehicleModel);
 }
 
 util::Map<std::string, const InventoryItem*> Controller::getInventoryItems()
@@ -130,22 +158,9 @@ util::Map<std::string, const ServiceBooking*> Controller::getServiceBookingsByUs
     return util::Map<std::string, const ServiceBooking*>();
 }
 
-/*
-Function: getUsers
-Description: Retrieves all users from the user management service and
-             constructs a read-only map.
-Parameter: None
-Return type: util::Map<std::string, const User*>
-*/
 util::Map<std::string, const User*> Controller::getUsers()
 {
-    auto listOfUsers = m_userManagementService.getUsers();
+    return util::Map<std::string, const User*>();
-    util::Map<std::string, const User*> readOnlyUserList;
-    for (int iterator = 0; iterator < listOfUsers.getSize(); iterator++)
-    {
-        readOnlyUserList.insert(listOfUsers.getKeyAt(iterator), listOfUsers.getValueAt(iterator));
-    }
-    return readOnlyUserList;
 }
 
 util::Map<std::string, const User*> Controller::getUsers(util::UserType userType)
@@ -174,49 +189,16 @@ void Controller::completeJob(const std::string& jobID)
 {
 }
 
-/*
-Function: removeUser
-Description: Removes a user by ID. Cancels associated service bookings
-             and technician jobs before removing the user from the system.
-Parameter: const std::string& userID - ID of the user to remove
-Return type: void
-*/
 void Controller::removeUser(const std::string& userID)
 {
-    User* user = m_userManagementService.getUser(userID);
-    if (!user)
-    {
-        throw std::runtime_error("Error User not Found.\n");
-    }
-    m_serviceManagementService.cancelCustomerServiceBookings(userID);
-    m_serviceManagementService.cancelTechnicianJobs(userID);
-    m_userManagementService.removeUser(userID);
 }
 
-/*
-Function: createComboPackage
-Description: Creates a new combo package with specified services and discount
-             percentage by delegating to the service management service.
-Parameter: const std::string& name - name of the combo package
-           const util::Vector<std::string>& serviceIDs - list of service IDs
-           double discountPercentage - discount percentage for the package
-Return type: void
-*/
 void Controller::createComboPackage(const std::string& name, const util::Vector<std::string>& serviceIDs, double discountPercentage)
 {
-    m_serviceManagementService.createComboPackage(name, serviceIDs, discountPercentage);
 }
 
-/*
-Function: removeComboPackage
-Description: Removes a combo package by ID by delegating to the service
-             management service.
-Parameter: const std::string& comboPackageID - ID of the combo package
-Return type: void
-*/
 void Controller::removeComboPackage(const std::string& comboPackageID)
 {
-    m_serviceManagementService.removeComboPackage(comboPackageID);
 }
 
 util::Map<std::string, const Invoice*> Controller::getInvoicesByUser()
@@ -241,7 +223,14 @@ void Controller::configureNotifications(const std::string& userID, bool paymentN
 {
 }
 
+/*
+Function: runSystemChecks
+Description: Runs system checks to ensure critical configurations, such as verifying admin existence.
+Parameter: None
+Return type: void
+*/
 void Controller::runSystemChecks()
 {
+    m_userManagementService.ensureAdminExists();
 }
 

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/controllers/Controller.h

@@ -1,18 +1,18 @@
 /*
 File: Controller.h
-Description: Header file declaring the Controller class, which manages
+Description: Header file declaring the Controller class, which coordinates
-             user authentication, inventory, services, bookings, job cards,
+             authentication, user management, service management, inventory,
-             invoices, and notifications in the system.
+             and notifications across the Vehicle Service System.
 Author: Trenser
 Date:19-May-2026
 */
 #pragma once
-#include <string>
 #include "Map.h"
+#include <string>
 #include "Enums.h"
+#include "AuthenticationManagementService.h"
 #include "UserManagementService.h"
 #include "ServiceManagementService.h"
-#include "AuthenticationManagementService.h"
 
 class Service;
 class ComboPackage;
@@ -33,9 +33,9 @@ public:
     bool login(const std::string& username, const std::string& password);
     void logout();
     void changePassword(const std::string& newPassword);
-    void createCustomer(const std::string& username, const std::string& password, const std::string& email, const std::string& phone);
+    void createCustomer(const std::string& username, const std::string& name, const std::string& password, const std::string& email, const std::string& phone);
     const User* getAuthenticatedUser();
-    void createTechnician(const std::string& username, const std::string& name, const std::string& password, const std::string& email, const std::string& phoneNumber);
+    void createTechnician(const std::string& username, const std::string& password, const std::string& email, const std::string& phone);
     void updateUserDetails(const std::string& email, const std::string& phone);
     util::Map<std::string, const Service*> getServices();
     util::Map<std::string, const ComboPackage*> getComboPackages();

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/models/JobCard.cpp

@@ -1,44 +1,14 @@
-/*
-File: JobCard.cpp
-Description: Implementation file containing the method definitions of the
-             JobCard class, including constructors, getters, and setters
-             for job card attributes.
-Author: Trenser
-Date:19-May-2026
-*/
 #include "JobCard.h"
 
 int JobCard::m_uid = 0;
 
-/*
-Function: JobCard
-Description: Default constructor that initializes a new job card with
-             a unique ID and default values.
-Parameter: None
-Return type: Constructor
-*/
 JobCard::JobCard()
     : m_id("JC" + std::to_string(++m_uid)),
     m_booking(nullptr),
     m_service(nullptr),
     m_technician(nullptr),
-    m_status(util::ServiceJobStatus()) {}
+    m_status(ServiceJobStatus()) {}
 
-/*
-Function: JobCard
-Description: Parameterized constructor that initializes a job card with
-             booking, service, technician, and status details.
-Parameter: const std::string& bookingId - ID of the booking
-           ServiceBooking* booking - pointer to the booking object
-           Service* service - pointer to the service object
-           const std::string& serviceId - ID of the service
-           const std::string& technicianId - ID of the technician
-           User* technician - pointer to the technician object
-           const util::Timestamp& assignedDate - date when job was assigned
-           util::ServiceJobStatus status - current status of the job
-           const util::Timestamp& completionDate - date when job was completed
-Return type: Constructor
-*/
 JobCard::JobCard(const std::string& bookingId,
     ServiceBooking* booking,
     Service* service,
@@ -46,7 +16,7 @@ JobCard::JobCard(const std::string& bookingId,
     const std::string& technicianId,
     User* technician,
     const util::Timestamp& assignedDate,
-    util::ServiceJobStatus status,
+    ServiceJobStatus status,
     const util::Timestamp& completionDate
 )
     : m_id("JC" + std::to_string(++m_uid)),
@@ -60,221 +30,101 @@ JobCard::JobCard(const std::string& bookingId,
     m_status(status),
     m_completionDate(completionDate) {}
 
-/*
-Function: getId
-Description: Retrieves the unique identifier of the job card.
-Parameter: None
-Return type: const std::string&
-*/
 const std::string& JobCard::getId() const
 {
     return m_id;
 }
 
-/*
-Function: getBookingId
-Description: Retrieves the booking ID associated with the job card.
-Parameter: None
-Return type: const std::string&
-*/
 const std::string& JobCard::getBookingId() const
 {
     return m_bookingId;
 }
 
-/*
-Function: getBooking
-Description: Retrieves the booking object associated with the job card.
-Parameter: None
-Return type: ServiceBooking*
-*/
 ServiceBooking* JobCard::getBooking() const
 {
     return m_booking;
 }
 
-/*
-Function: getService
-Description: Retrieves the service object associated with the job card.
-Parameter: None
-Return type: Service*
-*/
 Service* JobCard::getService() const
 {
     return m_service;
 }
 
-/*
-Function: getServiceId
-Description: Retrieves the service ID associated with the job card.
-Parameter: None
-Return type: const std::string&
-*/
 const std::string& JobCard::getServiceId() const
 {
     return m_serviceId;
 }
 
-/*
-Function: getTechnicianId
-Description: Retrieves the technician ID assigned to the job card.
-Parameter: None
-Return type: const std::string&
-*/
 const std::string& JobCard::getTechnicianId() const
 {
     return m_technicianId;
 }
 
-/*
-Function: getTechnician
-Description: Retrieves the technician object assigned to the job card.
-Parameter: None
-Return type: User*
-*/
 User* JobCard::getTechnician() const
 {
     return m_technician;
 }
 
-/*
-Function: getAssignedDate
-Description: Retrieves the date when the job was assigned.
-Parameter: None
-Return type: const util::Timestamp&
-*/
 const util::Timestamp& JobCard::getAssignedDate() const
 {
     return m_assignedDate;
 }
 
-/*
+ServiceJobStatus JobCard::getStatus() const
-Function: getStatus
-Description: Retrieves the current status of the job card.
-Parameter: None
-Return type: util::ServiceJobStatus
-*/
-util::ServiceJobStatus JobCard::getStatus() const
 {
     return m_status;
 }
 
-/*
-Function: getCompletionDate
-Description: Retrieves the completion date of the job card.
-Parameter: None
-Return type: const util::Timestamp&
-*/
 const util::Timestamp& JobCard::getCompletionDate() const
 {
     return m_completionDate;
 }
 
-/*
-Function: setId
-Description: Sets the unique identifier of the job card.
-Parameter: const std::string& id - new job card ID
-Return type: void
-*/
 void JobCard::setId(const std::string& id)
 {
     m_id = id;
 }
 
-/*
-Function: setBookingId
-Description: Sets the booking ID for the job card.
-Parameter: const std::string& bookingId - new booking ID
-Return type: void
-*/
 void JobCard::setBookingId(const std::string& bookingId)
 {
     m_bookingId = bookingId;
 }
 
-/*
-Function: setBooking
-Description: Sets the booking object for the job card.
-Parameter: ServiceBooking* booking - pointer to the booking object
-Return type: void
-*/
 void JobCard::setBooking(ServiceBooking* booking)
 {
     m_booking = booking;
 }
 
-/*
-Function: setService
-Description: Sets the service object for the job card.
-Parameter: Service* service - pointer to the service object
-Return type: void
-*/
 void JobCard::setService(Service* service)
 {
     m_service = service;
 }
 
-/*
-Function: setServiceId
-Description: Sets the service ID for the job card.
-Parameter: const std::string& serviceId - new service ID
-Return type: void
-*/
 void JobCard::setServiceId(const std::string& serviceId)
 {
     m_serviceId = serviceId;
 }
 
-/*
-Function: setTechnicianId
-Description: Sets the technician ID for the job card.
-Parameter: const std::string& technicianId - new technician ID
-Return type: void
-*/
 void JobCard::setTechnicianId(const std::string& technicianId)
 {
     m_technicianId = technicianId;
 }
 
-/*
-Function: setTechnician
-Description: Sets the technician object for the job card.
-Parameter: User* technician - pointer to the technician object
-Return type: void
-*/
 void JobCard::setTechnician(User* technician)
 {
     m_technician = technician;
 }
 
-/*
-Function: setAssignedDate
-Description: Sets the assigned date for the job card.
-Parameter: const util::Timestamp& assignedDate - new assigned date
-Return type: void
-*/
 void JobCard::setAssignedDate(const util::Timestamp& assignedDate)
 {
     m_assignedDate = assignedDate;
 }
 
-/*
+void JobCard::setStatus(ServiceJobStatus status)
-Function: setStatus
-Description: Sets the status of the job card.
-Parameter: util::ServiceJobStatus status - new job status
-Return type: void
-*/
-void JobCard::setStatus(util::ServiceJobStatus status)
 {
     m_status = status;
 }
 
-/*
-Function: setCompletionDate
-Description: Sets the completion date for the job card.
-Parameter: const util::Timestamp& completionDate - new completion date
-Return type: void
-*/
 void JobCard::setCompletionDate(const util::Timestamp& completionDate)
 {
     m_completionDate = completionDate;

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/models/JobCard.h

@@ -1,20 +1,13 @@
-/*
-File: JobCard.h
-Description: Header file declaring the JobCard class, which represents
-             a service job card containing booking, service, technician,
-             and status details.
-Author: Trenser
-Date:19-May-2026
-*/
 #pragma once
 #include <string>
 #include "Timestamp.h"
-#include "Enums.h"
 
 class ServiceBooking;
 class Service;
 class User;
 
+enum class ServiceJobStatus : int;
+
 class JobCard
 {
 private:
@@ -27,8 +20,9 @@ private:
     std::string m_technicianId;
     User* m_technician;
     util::Timestamp m_assignedDate;
-    util::ServiceJobStatus m_status;
+    ServiceJobStatus m_status;
     util::Timestamp m_completionDate;
+
 public:
     JobCard();
     JobCard(const std::string& bookingId,
@@ -38,7 +32,7 @@ public:
         const std::string& technicianId, 
         User* technician, 
         const util::Timestamp& assignedDate, 
-        util::ServiceJobStatus status,
+        ServiceJobStatus status,
         const util::Timestamp& completionDate
     );
     const std::string& getId() const;
@@ -49,7 +43,7 @@ public:
     const std::string& getTechnicianId() const;
     User* getTechnician() const;
     const util::Timestamp& getAssignedDate() const;
-    util::ServiceJobStatus getStatus() const;
+    ServiceJobStatus getStatus() const;
     const util::Timestamp& getCompletionDate() const;
     void setId(const std::string& id);
     void setBookingId(const std::string& bookingId);
@@ -59,6 +53,6 @@ public:
     void setTechnicianId(const std::string& technicianId);
     void setTechnician(User* technician);
     void setAssignedDate(const util::Timestamp& assignedDate);
-    void setStatus(util::ServiceJobStatus status);
+    void setStatus(ServiceJobStatus status);
     void setCompletionDate(const util::Timestamp& completionDate);
 };

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/models/ServiceBooking.cpp

@@ -13,34 +13,31 @@ int ServiceBooking::m_uid = 0;
 /*
 Function: ServiceBooking
 Description: Default constructor that initializes a new service booking
-             with a unique ID, no customer, and zero discount.
+             with a unique ID, no customer or technician, and zero discount.
 Parameter: None
 Return type: Constructor
 */
 ServiceBooking::ServiceBooking()
     : m_id("SRV" + std::to_string(++m_uid)),
     m_customer(nullptr),
+    m_assignedTechnician(nullptr),
     m_discountPercentage(0.0) {}
 
 /*
 Function: ServiceBooking
 Description: Parameterized constructor that initializes a service booking
-             with customer, vehicle, technician, and discount details.
+             with customer, vehicle, services, and discount details.
-Parameter: const std::string& id - booking ID
+Parameter: util::ServiceJobStatus status - current booking status
-           util::ServiceJobStatus status - current booking status
            const util::Map<std::string, Service*>& services - map of services
            const std::string& customerId - ID of the customer
            User* customer - pointer to the customer object
            const std::string& vehicleNumber - vehicle registration number
            const std::string& vehicleBrand - brand of the vehicle
            const std::string& vehicleModel - model of the vehicle
-           const std::string& assignedTechnicianId - ID of the assigned technician
-           User* assignedTechnician - pointer to the technician object
            double discountPercentage - discount applied to the booking
 Return type: Constructor
 */
 ServiceBooking::ServiceBooking(
-    const std::string& id,
     util::ServiceJobStatus status,
     const util::Map<std::string,
     Service*>& services,
@@ -49,8 +46,6 @@ ServiceBooking::ServiceBooking(
     const std::string& vehicleNumber,
     const std::string& vehicleBrand,
     const std::string& vehicleModel,
-    const std::string& assignedTechnicianId,
-    User* assignedTechnician,
     double discountPercentage
 )
     : m_id("SRV" + std::to_string(++m_uid)),
@@ -61,8 +56,8 @@ ServiceBooking::ServiceBooking(
     m_vehicleNumber(vehicleNumber),
     m_vehicleBrand(vehicleBrand),
     m_vehicleModel(vehicleModel),
-    m_assignedTechnicianId(assignedTechnicianId),
+    m_assignedTechnicianId(""),
-    m_assignedTechnician(assignedTechnician),
+    m_assignedTechnician(nullptr),
     m_discountPercentage(discountPercentage)
 {
 }
@@ -176,7 +171,6 @@ User* ServiceBooking::getAssignedTechnician() const
 {
     return m_assignedTechnician;
 }
-
 /*
 Function: getDiscountPercentage
 Description: Retrieves the discount percentage applied to the booking.

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/models/ServiceBooking.h

@@ -32,7 +32,6 @@ private:
 public:
     ServiceBooking();
     ServiceBooking(
-        const std::string& id,
         util::ServiceJobStatus status,
         const util::Map<std::string,
         Service*>& services,
@@ -41,8 +40,6 @@ public:
         const std::string& vehicleNumber,
         const std::string& vehicleBrand,
         const std::string& vehicleModel,
-        const std::string& assignedTechnicianId,
-        User* assignedTechnician,
         double discountPercentage
     );
     const std::string& getId() const;

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/AuthenticationManagementService.cpp

@@ -1,16 +1,57 @@
 /*
 File: AuthenticationManagementService.cpp
 Description: Implementation file containing the method definitions of the
-			 AuthenticationManagementService class, including logout and
+			 AuthenticationManagementService class, including login, logout,
-			 password change logic.
+			 password change, and retrieval of the authenticated user.
 Author: Trenser
 Date:19-May-2026
 */
+#include <stdexcept>
 #include "AuthenticationManagementService.h"
 #include "User.h"
 
 User* AuthenticationManagementService::m_authenticatedUser = nullptr;
 
+/*
+Function: login
+Description: Authenticates a user by checking the provided username and password
+			 against the stored users in the DataStore. If successful, sets the
+			 authenticated user.
+Parameter: const std::string& username - user’s username
+		   const std::string& password - user’s password
+Return type: bool - true if login successful, false otherwise
+*/
+bool AuthenticationManagementService::login(const std::string& username, const std::string& password)
+{
+	util::Map<std::string, User*> users = m_dataStore.getUsers();
+	int usersMapSize = users.getSize();
+	for (int index = 0; index < usersMapSize; index++)
+	{
+		User* user = users.getValueAt(index);
+		if (username == user->getUserName())
+		{
+			if (password == user->getPassword())
+			{
+				m_authenticatedUser = user;
+				return true;
+			}
+			return false;
+		}
+	}
+	return false;
+}
+
+/*
+Function: getAuthenticatedUser
+Description: Retrieves the currently authenticated user.
+Parameter: None
+Return type: User* - pointer to the authenticated user
+*/
+User* AuthenticationManagementService::getAuthenticatedUser()
+{
+	return m_authenticatedUser;
+}
+
 /*
 Function: logout
 Description: Logs out the currently authenticated user by clearing the

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/ServiceManagementService.cpp

@@ -1,231 +1,98 @@
 /*
 File: ServiceManagementService.cpp
 Description: Implementation file containing the method definitions of the
-             ServiceManagementService class, including service booking cancellation,
+			 ServiceManagementService class, including service and combo package
-             job card management, combo package creation, and removal logic.
+			 purchasing logic, booking creation, and notification handling.
 Author: Trenser
 Date:19-May-2026
 */
+#include <stdexcept>
 #include "ServiceManagementService.h"
-#include "DataStore.h"
+#include "AuthenticationManagementService.h"
-#include "ServiceBooking.h"
-#include "JobCard.h"
 #include "Service.h"
-#include "InventoryItem.h"
+#include "ServiceBooking.h"
-#include "Factory.h"
 #include "ComboPackage.h"
+#include "Factory.h"
 
 /*
-Function: cancelCustomerServiceBookings
+Function: purchaseService
-Description: Cancels all service bookings associated with a given customer or technician.
+Description: Creates a new service booking for the authenticated user. Validates
-             Updates booking status, resets customer/technician assignments, sends notifications,
+			 service IDs, retrieves services from the DataStore, and generates a
-             and restocks inventory items.
+			 booking. Sends a notification upon successful booking.
-Parameter: const std::string& userID - ID of the customer or technician
+Parameter: const util::Vector<std::string>& serviceIDs - IDs of services to purchase
+		   const std::string& vehicleNumber - vehicle registration number
+		   const std::string& vehicleBrand - brand of the vehicle
+		   const std::string& vehicleModel - model of the vehicle
 Return type: void
 */
-void ServiceManagementService::cancelCustomerServiceBookings(const std::string& userID)
+void ServiceManagementService::purchaseService(const util::Vector<std::string>& serviceIDs, const std::string& vehicleNumber, const std::string& vehicleBrand, const std::string& vehicleModel)
 {
-    const int INCREMENT_VALUE = 1;
+	AuthenticationManagementService m_authenticationManagementService;
-    auto& users = m_dataStore.getUsers();
+	auto authenticatedUser = m_authenticationManagementService.getAuthenticatedUser();
-    int userIndex = users.find(userID);
+	if (authenticatedUser == nullptr)
-    if (userIndex == -1)
 	{
-        throw std::runtime_error("User not found: " + userID);
+		throw std::runtime_error("No user is currently logged in!");
-    }
-    User* user = users.getValueAt(userIndex);
-    if (user == nullptr)
-    {
-        throw std::runtime_error("User not found: " + userID);
-    }
-    util::UserType type = user->getUserType();
-    auto& bookings = DataStore::getInstance().getServiceBookings();
-    for (int bookingIterator = 0; bookingIterator < bookings.getSize(); bookingIterator++)
-    {
-        ServiceBooking* booking = bookings.getValueAt(bookingIterator);
-        if (booking != nullptr &&
-            (booking->getCustomerId() == userID || booking->getAssignedTechnicianId() == userID))
-        {
-            if (booking->getStatus() == util::ServiceJobStatus::PENDING ||
-                booking->getStatus() == util::ServiceJobStatus::STARTED)
-            {
-                if (type == util::UserType::CUSTOMER)
-                {
-                    booking->setStatus(util::ServiceJobStatus::CANCELLED);
-                    booking->setCustomer(nullptr);
-                    booking->setCustomerId("");
-                    User* assignedTechnician = booking->getAssignedTechnician();
-                    sendNotification(assignedTechnician, "Customer Service Cancelled", "Uh?Oh. The customer has cancelled their service booking. Your assigned job card has been cancelled and the inventory has been restocked.");
-                }
-                else if (type == util::UserType::TECHNICIAN)
-                {
-                    booking->setStatus(util::ServiceJobStatus::PENDING);
-                    sendNotification(booking->getCustomer(), "Technician Unavailable", "Your assigned technician is no longer available. Your booking has been reset to pending, and we will reassign a new technician shortly.");
-                }
-                booking->setAssignedTechnician(nullptr);
-                booking->setAssignedTechnicianId("");
-                const auto& ListOfServices = booking->getServices();
-                for (int serviceIterator = 0; serviceIterator < ListOfServices.getSize(); serviceIterator++)
-                {
-                    Service* service = ListOfServices.getValueAt(serviceIterator);
-                    if (service != nullptr)
-                    {
-                        const auto& items = service->getRequiredInventoryItems();
-                        for (int itemIterator = 0; itemIterator < items.getSize(); itemIterator++)
-                        {
-                            InventoryItem* item = items.getValueAt(itemIterator);
-                            if (item != nullptr)
-                            {
-                                item->setQuantity(item->getQuantity() + INCREMENT_VALUE);
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-
-/*
-Function: cancelTechnicianJobs
-Description: Cancels all jobs assigned to a technician. Updates job status, sends notifications,
-             and restocks inventory items used in the service.
-Parameter: const std::string& technicianID - ID of the technician
-Return type: void
-*/
-void ServiceManagementService::cancelTechnicianJobs(const std::string& technicianID)
-{
-    const int INCREMENT_VALUE = 1;
-    auto& jobs = m_dataStore.getJobCards();
-    for (int jobIterator = 0; jobIterator < jobs.getSize(); jobIterator++)
-    {
-        JobCard* job = jobs.getValueAt(jobIterator);
-        if (job != nullptr && job->getTechnicianId() == technicianID)
-        {
-            if (job->getStatus() == util::ServiceJobStatus::PENDING || job->getStatus() == util::ServiceJobStatus::STARTED)
-            {
-                job->setStatus(util::ServiceJobStatus::CANCELLED);
-                sendNotification(job->getTechnician(), "Job Cancelled", "The Job has cancelled. Your job card has been cancelled and the inventory has been restocked.");
-                Service* service = job->getService();
-                if (service != nullptr)
-                {
-                    const auto& items = service->getRequiredInventoryItems();
-                    for (int itemIterator = 0; itemIterator < items.getSize(); itemIterator++)
-                    {
-                        InventoryItem* item = items.getValueAt(itemIterator);
-                        if (item != nullptr)
-                        {
-                            item->setQuantity(item->getQuantity() + INCREMENT_VALUE);
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-
-/*
-Function: createComboPackage
-Description: Creates a new combo package with two services and a discount percentage.
-             Validates service IDs, ensures uniqueness, and inserts the new package into the DataStore.
-Parameter: const std::string& packageName - name of the combo package
-           const util::Vector<std::string>& serviceIDsInNewCombo - list of service IDs
-           double discountPercentage - discount percentage for the package
-Return type: void
-*/
-void ServiceManagementService::createComboPackage(const std::string& packageName, const util::Vector<std::string>& serviceIDsInNewCombo, double discountPercentage)
-{
-    if (packageName.empty())
-    {
-        throw std::invalid_argument("The Combo Package Name cannot be empty.\n");
-    }
-    if (serviceIDsInNewCombo.getSize() < 2 || serviceIDsInNewCombo.getSize() > 2)
-    {
-        throw std::invalid_argument("Combo package must contain only two services.");
-    }
-    if (discountPercentage < 0.0 || discountPercentage > 100.0)
-    {
-        throw std::invalid_argument("Discount percentage must be between 0 and 100.");
 	}
 	auto& servicesMap = m_dataStore.getServices();
-    for (int index = 0; index < serviceIDsInNewCombo.getSize(); index++)
+	auto& serviceBookingMap = m_dataStore.getServiceBookings();
-    {
-        const std::string serviceid = serviceIDsInNewCombo[index];
-        if (servicesMap.find(serviceid) == -1)
-        {
-            throw std::runtime_error("Service ID not found: " + serviceid);
-        }
-    }
-    auto& comboPackageMap = m_dataStore.getComboPackages();
-    for (int iterator = 0; iterator < comboPackageMap.getSize(); iterator++)
-    {
-        ComboPackage* existingCombos = comboPackageMap.getValueAt(iterator);
-        const util::Map<std::string, Service*>& servicesInsideExistingCombos = existingCombos->getServices();
-        if (servicesInsideExistingCombos.getSize() == serviceIDsInNewCombo.getSize())
-        {
-            bool isIdentical = true;
-            for (int serviceIterator = 0; serviceIterator < serviceIDsInNewCombo.getSize(); serviceIterator++)
-            {
-                const std::string& id = serviceIDsInNewCombo[serviceIterator];
-                if (servicesInsideExistingCombos.find(id) == -1)
-                {
-                    isIdentical = false;
-                    break;
-                }
-            }
-            if (isIdentical)
-            {
-                throw std::runtime_error("A combo package with the same services already exists.");
-            }
-        }
-    }
 	util::Map<std::string, Service*> selectedServices;
-    for (int iteratorOne = 0; iteratorOne < serviceIDsInNewCombo.getSize(); iteratorOne++)
+	int selectedServicesCount = serviceIDs.getSize();
+	for (int index = 0; index < selectedServicesCount; index++)
 	{
-        const std::string& serviceId = serviceIDsInNewCombo[iteratorOne];
+		int serviceIndex = servicesMap.find(serviceIDs[index]);
-        int serviceIndex = servicesMap.find(serviceId);
 		if (serviceIndex == -1)
 		{
-            throw std::runtime_error("Service ID not found: " + serviceId);
+			throw std::runtime_error("Service not found!");
 		}
-        selectedServices.insert(serviceId, servicesMap.getValueAt(serviceIndex));
+		Service* service = servicesMap.getValueAt(serviceIndex);
+		selectedServices[service->getId()] = service;
 	}
-    ComboPackage* newComboPackage = Factory::getObject<ComboPackage>(packageName, discountPercentage, selectedServices);
+	ServiceBooking* serviceBooking = Factory::getObject<ServiceBooking>(util::ServiceJobStatus::STARTED, selectedServices, authenticatedUser->getId(), authenticatedUser, vehicleNumber, vehicleBrand, vehicleModel, 0);
-    comboPackageMap.insert(newComboPackage->getId(), newComboPackage);
+	if (serviceBooking == nullptr)
-}
-
-/*
-Function: getComboPackages
-Description: Retrieves all combo packages stored in the DataStore.
-Parameter: None
-Return type: util::Map<std::string, ComboPackage*>
-*/
-util::Map<std::string, ComboPackage*> ServiceManagementService::getComboPackages()
 	{
-    return m_dataStore.getComboPackages();
+		throw std::runtime_error("Failed to create service booking");
+	}
+	serviceBookingMap[serviceBooking->getId()] = serviceBooking;
+	sendNotification(authenticatedUser,
+		"Service Booking succeeded",
+		"Your service booking has been successfully placed with ID " + serviceBooking->getId());
 }
 
 /*
-Function: removeComboPackage
+Function: purchaseComboPackage
-Description: Removes a combo package by marking it inactive. Throws an exception if the package ID is not found.
+Description: Creates a new service booking for a combo package. Validates the combo
+			 package ID, retrieves services from the package, and generates a booking
+			 with the applicable discount. Sends a notification upon successful booking.
 Parameter: const std::string& comboPackageID - ID of the combo package
+		   const std::string& vehicleNumber - vehicle registration number
+		   const std::string& vehicleBrand - brand of the vehicle
+		   const std::string& vehicleModel - model of the vehicle
 Return type: void
 */
-void ServiceManagementService::removeComboPackage(const std::string& comboPackageID)
+void ServiceManagementService::purchaseComboPackage(const std::string& comboPackageID, const std::string& vehicleNumber, const std::string& vehicleBrand, const std::string& vehicleModel)
 {
-    bool removed = false;
+	AuthenticationManagementService m_authenticationManagementService;
-    util::Map<std::string, ComboPackage*>& currentComboPackages = m_dataStore.getComboPackages();
+	auto authenticatedUser = m_authenticationManagementService.getAuthenticatedUser();
-    for (int iterator = 0; iterator < currentComboPackages.getSize(); iterator++)
+	if (authenticatedUser == nullptr)
 	{
-        ComboPackage* currentComboPackage = currentComboPackages.getValueAt(iterator);
+		throw std::runtime_error("No user is currently logged in!");
-        if (currentComboPackage && currentComboPackage->getId() == comboPackageID)
+	}
+	auto& comboPackagesMap = m_dataStore.getComboPackages();
+	auto& serviceBookingMap = m_dataStore.getServiceBookings();
+	int comboPackageIndex = comboPackagesMap.find(comboPackageID);
+	if (comboPackageIndex == -1)
 	{
-            currentComboPackage->setState(util::State::INACTIVE);
+		throw std::runtime_error("Combo Package not found!");
-            removed = true;
-            break;
 	}
-    }
+	const ComboPackage* comboPackage = comboPackagesMap[comboPackageID];
-    if (!removed)
+	util::Map<std::string, Service*> selectedServices = comboPackage->getServices();
+	ServiceBooking* serviceBooking = Factory::getObject<ServiceBooking>(util::ServiceJobStatus::STARTED, selectedServices, authenticatedUser->getId(), authenticatedUser, vehicleNumber, vehicleBrand, vehicleModel, comboPackage->getDiscountPercentage());
+	if (serviceBooking == nullptr)
 	{
-        throw std::runtime_error("Combo package with ID '" + comboPackageID + "' not found.");
+		throw std::runtime_error("Failed to create combo package service booking");
 	}
+	serviceBookingMap[serviceBooking->getId()] = serviceBooking;
+	sendNotification(authenticatedUser,
+		"Combo Package Service Booking succeeded",
+		"Your service booking for the combo package has been successfully placed with ID " + serviceBooking->getId());
 }

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/ServiceManagementService.h

@@ -37,7 +37,7 @@ public:
     void completeJob(const std::string& jobID);
     void cancelCustomerServiceBookings(const std::string& customerID);
     void cancelTechnicianJobs(const std::string& technicianID);
-    void createComboPackage(const std::string& packageName, const util::Vector<std::string>& serviceIDs, double discountPercentage);
+    void createComboPackage(const std::string& name, const util::Vector<std::string>& serviceIDs, double discountPercentage);
     void removeComboPackage(const std::string& comboPackageID);
     void sendNotification(User* user, const std::string& title, const std::string& message) override;
     void attach(User* user) override;

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/UserManagementService.cpp

@@ -1,55 +1,112 @@
 /*
 File: UserManagementService.cpp
 Description: Implementation file containing the method definitions of the
-			 UserManagementService class, including user retrieval and removal logic.
+			 UserManagementService class, including user creation, updates,
+			 and ensuring an admin account exists.
 Author: Trenser
 Date:19-May-2026
 */
-#include "UserManagementService.h"
+#include <stdexcept>
 #include "User.h"
+#include "Enums.h"
+#include "Config.h"
+#include "UserManagementService.h"
+#include "ServiceManagementService.h"
+#include "PaymentManagementService.h"
+#include "InventoryManagementService.h"
+#include "Factory.h"
 
 /*
-Function: getUsers
+Function: ensureAdminExists
-Description: Retrieves all users stored in the DataStore.
+Description: Ensures that at least one admin user exists in the system.
+			 If no admin is found, creates a default admin user using
+			 configuration constants.
 Parameter: None
-Return type: util::Map<std::string, User*>
-*/
-util::Map<std::string, User*> UserManagementService::getUsers()
-{
-	return m_dataStore.getUsers();
-}
-
-/*
-Function: getUser
-Description: Retrieves a specific user by ID from the DataStore.
-Parameter: const std::string& userID - ID of the user
-Return type: User*
-*/
-User* UserManagementService::getUser(const std::string& userID)
-{
-	int index = m_dataStore.getUsers().find(userID);
-	if (index != -1)
-	{
-		return m_dataStore.getUsers().getValueAt(index);
-	}
-	return nullptr;
-}
-
-/*
-Function: removeUser
-Description: Marks a user as inactive in the DataStore instead of deleting them.
-Parameter: const std::string& userID - ID of the user to remove
 Return type: void
 */
-void UserManagementService::removeUser(const std::string& userID)
+void UserManagementService::ensureAdminExists()
 {
-	int index = m_dataStore.getUsers().find(userID);
+	auto& usersMap = m_dataStore.getUsers();
+	int usersMapSize = usersMap.getSize();
+	bool isAdminFound = false;
+	for (int index = 0; index < usersMapSize; index++)
+	{
+		User* user = usersMap.getValueAt(index);
+		if (user && user->getUserType() == util::UserType::ADMIN)
+		{
+			isAdminFound = true;
+			break;
+		}
+	}
+	if (!isAdminFound)
+	{
+		createUser(
+			config::admin::DEFAULT_ADMIN_USERNAME,
+			config::admin::DEFAULT_ADMIN_NAME,
+			config::admin::DEFAULT_ADMIN_PASSWORD,
+			config::admin::DEFAULT_ADMIN_EMAIL,
+			config::admin::DEFAULT_ADMIN_PHONE, 
+			util::UserType::ADMIN);
+	}
+}
+
+/*
+Function: createUser
+Description: Creates a new user with the provided details. Validates that
+			 the username is unique, then attaches the user to relevant
+			 management services (payment, service, inventory).
+Parameter: const std::string& username - user’s username
+		   const std::string& name - user’s name
+		   const std::string& password - user’s password
+		   const std::string& email - user’s email address
+		   const std::string& phone - user’s phone number
+		   util::UserType type - type of user (ADMIN, CUSTOMER, TECHNICIAN)
+Return type: void
+*/
+void UserManagementService::createUser(const std::string& username, const std::string& name, const std::string& password, const std::string& email, const std::string& phone, util::UserType type)
+{
+	InventoryManagementService inventoryManagementService;
+	PaymentManagementService paymentManagementService;
+	ServiceManagementService serviceManagementService;
+	auto& usersMap = m_dataStore.getUsers();
+	int index = usersMap.findIf(
+		[&](const std::string&, User* user)
+		{
+			return user->getUserName() == username;
+		}
+	);
 	if (index != -1)
 	{
-		User* user = m_dataStore.getUsers().getValueAt(index);
+		throw std::runtime_error("Username already exists");
-		if (user != nullptr)
+	}
+	User* newUser = Factory::getObject<User>(username, password, name, phone, email, type);
+	usersMap.insert(newUser->getId(), newUser);
+	paymentManagementService.attach(newUser);
+	serviceManagementService.attach(newUser);
+	if (newUser->getUserType() == util::UserType::ADMIN)
 	{
-			user->setState(util::State::INACTIVE);
+		inventoryManagementService.attach(newUser);
 	}
 }
+
+/*
+Function: updateUserDetails
+Description: Updates the email and phone details of an existing user.
+			 Throws an exception if the user does not exist.
+Parameter: const std::string& userID - ID of the user to update
+		   const std::string& email - new email address
+		   const std::string& phone - new phone number
+Return type: void
+*/
+void UserManagementService::updateUserDetails(const std::string& userID, const std::string& email, const std::string& phone)
+{
+	auto& usersMap = m_dataStore.getUsers();
+	int index = usersMap.find(userID);
+	if (index == -1)
+	{
+		throw std::runtime_error("User does not exist!");
+	}
+	User* user = usersMap.getValueAt(index);
+	user->setEmail(email);
+	user->setPhone(phone);
 }

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/services/UserManagementService.h

@@ -1,7 +1,8 @@
 /*
 File: UserManagementService.h
 Description: Header file declaring the UserManagementService class, which manages
-             user creation, updates, retrieval, removal, and notification handling.
+             user creation, updates, retrieval, removal, notifications, and ensures
+             the existence of an admin account.
 Author: Trenser
 Date:19-May-2026
 */
@@ -28,4 +29,5 @@ public:
     void removeUser(const std::string& userID);
     util::Vector<Notification*> getUserNotifications(const std::string& userID);
     void deleteNotification(const std::string& notificationID, const std::string& userID);
+    void ensureAdminExists();
 };

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/utilities/Config.h

@@ -0,0 +1,21 @@
+/*
+File: Config.h
+Description: Header file declaring configuration constants for the Vehicle Service System.
+			 Includes default admin account details such as username, name, password,
+			 email, and phone number.
+Author: Trenser
+Date:19-May-2026
+*/
+#pragma once
+
+namespace config
+{
+	namespace admin
+	{
+		constexpr const char* DEFAULT_ADMIN_USERNAME = "admin";
+		constexpr const char* DEFAULT_ADMIN_NAME = "admin";
+		constexpr const char* DEFAULT_ADMIN_PASSWORD = "";
+		constexpr const char* DEFAULT_ADMIN_EMAIL = "admin@vss";
+		constexpr const char* DEFAULT_ADMIN_PHONE = "0000000000";
+	}
+}

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/utilities/Enums.h

@@ -24,10 +24,8 @@ namespace util
 
 	enum class ServiceJobStatus
 	{
-        PENDING,
 		STARTED,
-		COMPLETED,
+		COMPLETED
-        CANCELLED
 	};
 
     enum class State
@@ -123,14 +121,10 @@ namespace util
     {
         switch (status)
         {
-        case ServiceJobStatus::PENDING:
-            return "PENDING";
         case ServiceJobStatus::STARTED:
             return "STARTED";
         case ServiceJobStatus::COMPLETED:
             return "COMPLETED";
-        case ServiceJobStatus::CANCELLED:
-            return "CANCELLED";
         }
         throw std::invalid_argument("Invalid ServiceJobStatus");
     }
@@ -145,14 +139,6 @@ namespace util
         {
             return ServiceJobStatus::COMPLETED;
         }
-        if (value == "PENDING")
-        {
-            return ServiceJobStatus::PENDING;
-        }
-        if (value == "CANCELLED")
-        {
-            return ServiceJobStatus::CANCELLED;
-        }
         throw std::invalid_argument("Invalid ServiceJobStatus string");
     }
 

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/utilities/Utility.h

@@ -1,7 +1,7 @@
 /*
 File: Utility.h
 Description: Header file declaring utility functions used across the system,
-             including cost calculation for services based on required inventory items.
+             including cost calculation for services and combo packages.
 Author: Trenser
 Date:19-May-2026
 */
@@ -27,3 +27,23 @@ inline double calculatePartsCost(const Service* service)
     }
     return cost;
 }
+
+/*
+Function: calculateComboServiceEstimatedCost
+Description: Calculates the estimated total cost of a combo package by summing
+             the labor and parts costs of all services included in the package.
+Parameter: const ComboPackage* comboPackage - pointer to the combo package object
+Return type: double - estimated total cost of the combo package
+*/
+inline double calculateComboServiceEstimatedCost(const ComboPackage* comboPackage)
+{
+    double cost = 0;
+    auto& services = comboPackage->getServices();
+    int servicesSize = services.getSize();
+    for (int index = 0; index < servicesSize; index++)
+    {
+        const Service* service = services.getValueAt(index);
+        cost += calculatePartsCost(service) + service->getLaborCost();
+    }
+    return cost;
+}

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp

@@ -1,57 +1,21 @@
-/*
-File: AdminMenu.cpp
-Description: Implementation file containing the method definitions of the
-			 AdminMenu class, including menu handling, inventory operations,
-			 user management, and combo package management functions.
-Author: Trenser
-Date:19-May-2026
-*/
-#include <iostream>
-#include <iomanip>
 #include "AdminMenu.h"
 #include "InputHelper.h"
 #include "OutputHelper.h"
-#include "User.h"
-#include "Validator.h"
-#include "Service.h"
-#include "Utility.h"
-#include "ComboPackage.h"
-#include "Enums.h"
 
-/*
-Function: showMenu
-Description: Displays the admin menu and handles user input until logout is selected.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::showMenu()
 {
-    while (true)
+	bool isMenuActive = true;
+	while (isMenuActive)
 	{
 		try
 		{
 			int choice;
 			util::clear();
-            std::cout << "Admin Menu"
+			std::cout << "" << std::endl;
-                << "\n1. View Stock Levels"
-                << "\n2. Add Inventory Item"
-                << "\n3. Remove Inventory Item"
-                << "\n4. Check Stock Availability"
-                << "\n5. Assign Job to Technician"
-                << "\n6. Add Technician"
-                << "\n7. Remove Customer/Technician"
-                << "\n8. Create Service"
-                << "\n9. Remove Service"
-                << "\n10. Create Combo Package"
-                << "\n11. Remove Combo Package"
-                << "\n12. View Notifications"
-                << "\n13. Change Password"
-                << "\n14. Logout"
-                << "\nEnter a choice: ";
 			util::read(choice);
 			if (!handleOperation(choice))
 			{
-                break;
+				isMenuActive = false;
 			}
 		}
 		catch (const std::exception& e)
@@ -62,100 +26,18 @@ void AdminMenu::showMenu()
 	}
 }
 
-/*
-Function: handleOperation
-Description: Executes the corresponding admin operation based on the selected menu choice.
-Parameter: int choice - selected menu option
-Return type: bool - true if menu continues, false if logout
-*/
 bool AdminMenu::handleOperation(int choice)
 {
-    switch (choice)
-    {
-    case 1:
-        viewStockLevels();
-        break;
-    case 2:
-        addInventoryItem();
-        break;
-    case 3:
-        removeInventoryItem();
-        break;
-    case 4:
-        checkStockAvailability();
-        break;
-    case 5:
-        assignJob();
-        break;
-    case 6:
-        addTechnician();
-        break;
-    case 7:
-        removeUser();
-        break;
-    case 8:
-        createService();
-        break;
-    case 9:
-        removeService();
-        break;
-    case 10:
-        createComboPackages();
-        break;
-    case 11:
-        removeComboPackage();
-        break;
-    case 12:
-        viewNotifications();
-        break;
-    case 13:
-        changePassword();
-        break;
-    case 14:
-        logout();
 	return false;
-    default:
-        std::cout << "Enter a valid choice!" << std::endl;
-        util::pressEnter();
-    }
-    return true;
 }
 
-/*
+
-Function: logout
-Description: Logs out the currently authenticated admin user.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::logout()
 {
-	m_controller.logout();
 }
-/*
+
-Function: changePassword
-Description: Allows the admin to change their password after validation.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::changePassword()
 {
-	std::string newPassword;
-	while (true)
-	{
-		util::clear();
-		std::cout << "Enter new password: ";
-		util::read(newPassword);
-		if (!util::isPasswordValid(newPassword))
-		{
-			std::cout << "Error: Password is not strong enough!\n";
-			util::pressEnter();
-			continue;
-		}
-		m_controller.changePassword(newPassword);
-		std::cout << "Password changed successfully\n";
-		util::pressEnter();
-		break;
-	}
 }
 
 void AdminMenu::viewStockLevels()
@@ -186,329 +68,20 @@ void AdminMenu::removeService()
 {
 }
 
-/*
-Function: addTechnician
-Description: Adds a new technician after validating username, password, email, and phone number.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::addTechnician()
 {
-	util::clear();
-	std::string username, name, password, email, phoneNumber;
-	std::cout << std::left << std::setw(25) << "Enter Technician Username: ";
-	util::read(username);
-	std::cout << std::left << std::setw(25) << "Enter Technician Name: ";
-	util::read(name);
-	std::cout << std::setw(25) << "Enter Technician Password: ";
-	util::read(password);
-	if(!util::isPasswordValid(password))
-	{
-		std::cout << "Error: Password is invalid!";
-		util::pressEnter();
-		return;
-	}
-	std::cout << std::setw(25) << "Enter Technician Email: ";
-	util::read(email);
-	if(!util::isEmailValid(email))
-	{
-		std::cout << "Error: Email is invalid!";
-		util::pressEnter();
-		return;
-	}
-	std::cout << std::setw(25) << "Enter Technician Phone: ";
-	util::read(phoneNumber);
-	if(!util::isPhoneNumberValid(phoneNumber))
-	{
-		std::cout << "Error: Phone Number is invalid!";
-		util::pressEnter();
-		return;
-	}
-	m_controller.createTechnician(username, name, password, email, phoneNumber);
-	std::cout << "\nTechnician Added Successfully.\n";
-	util::pressEnter();
 }
 
-/*
-Function: filterActiveUsers
-Description: Filters out inactive users and returns a map of active users.
-Parameter: const util::Map<std::string, const User*>& listOfUsers - all users
-Return type: util::Map<std::string, const User*>
-*/
-static util::Map<std::string, const User*>
-filterActiveUsers(const util::Map<std::string, const User*>& listOfUsers)
-{
-	util::Map<std::string, const User*> activeUsers;
-	int inventorySize = listOfUsers.getSize();
-	for (int index = 0; index < inventorySize; index++)
-	{
-		const User* user = listOfUsers.getValueAt(index);
-		if (user != nullptr && user->getState() != util::State::INACTIVE)
-		{
-			activeUsers.insert(user->getId(), user);
-		}
-	}
-	return activeUsers;
-}
-
-/*
-Function: displayAllActiveUsers
-Description: Displays all active users in a tabular format with index, ID, username, and type.
-Parameter: util::Map<std::string, const User*>& activeUsers - active users list
-		   int activeUserCount - number of active users
-Return type: void
-*/
-static void displayAllActiveUsers(util::Map<std::string, const User*>& activeUsers, int activeUserCount)
-{
-	std::cout << std::left << std::setw(10) << "Index"
-		<< std::setw(15) << "User ID"
-		<< std::setw(25) << "Username"
-		<< std::setw(25) << "User Type"
-		<< std::endl;
-	for (int iterator = 0; iterator < activeUserCount; iterator++)
-	{
-		const User* user = activeUsers.getValueAt(iterator);
-		if (user != nullptr)
-		{
-			std::cout << std::left << std::setw(10) << (iterator + 1)
-				<< std::setw(15) << user->getId()
-				<< std::setw(25) << user->getUserName()
-				<< std::setw(25) << util::getUserTypeString(user->getUserType())
-				<< std::endl;
-		}
-		else
-		{
-			std::cout << "No users found.\n";
-			util::pressEnter();
-			return;
-		}
-	}
-}
-
-/*
-Function: removeUser
-Description: Removes a selected active user (customer or technician) from the system.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::removeUser()
 {
-	util::clear();
-	int indexChoice;
-	auto listOfUsers = m_controller.getUsers();
-	auto listOfActiveUsers = filterActiveUsers(listOfUsers);
-	int activeUserCount = listOfActiveUsers.getSize();
-	if (activeUserCount < 1)
-	{
-		std::cout << "No Active users." << std::endl;
-		util::pressEnter();
-		return;
-	}
-	displayAllActiveUsers(listOfActiveUsers, activeUserCount);
-	std::cout << "Enter the index of the user to delete : ";
-	util::read(indexChoice);
-	if (indexChoice < 1 || indexChoice > activeUserCount)
-	{
-		std::cout << "Error Invaild index.\n" << std::endl;
-		util::pressEnter();
-		return;
-	}
-	const User* userToRemove = listOfActiveUsers.getValueAt(indexChoice - 1);
-	if (userToRemove != nullptr)
-	{
-		std::string userIdToRemove = userToRemove->getId();
-		m_controller.removeUser(userIdToRemove);
-		std::cout << userToRemove->getUserName() << " removed Successfully.\n";
-	}
-	util::pressEnter();
 }
 
-/*
-Function: selectServiceFromServices
-Description: Displays active services and allows the admin to select one by index.
-Parameter: const util::Map<std::string, const Service*>& services - list of services
-Return type: const Service* - selected service
-*/
-static const Service* selectServiceFromServices(const util::Map<std::string, const Service*>& services)
-{
-    util::Map<int, const Service*> activeServicesMap;
-    int currentIndex = 1;
-    int userInputIndex;
-    std::cout << std::left
-        << std::setw(10) << "Index"
-        << std::setw(15) << "Service ID"
-        << std::setw(25) << "Service Name"
-        << std::setw(15) << "Estimated Cost"
-        << std::endl;
-    for (int index = 0; index < services.getSize(); index++)
-    {
-        const Service* currentService = services.getValueAt(index);
-        if (currentService->getState() != util::State::ACTIVE)
-        {
-            continue;
-        }
-        activeServicesMap.insert(currentIndex, currentService);
-        double partsCost = calculatePartsCost(currentService);
-        std::cout << std::left
-            << std::setw(10) << currentIndex
-            << std::setw(15) << currentService->getId()
-            << std::setw(25) << currentService->getName()
-            << std::setw(15) << (currentService->getLaborCost() + partsCost)
-            << std::endl;
-        currentIndex++;
-    }
-    if (activeServicesMap.getSize() == 0)
-    {
-        std::cout << "No active services available." << std::endl;
-        return nullptr;
-    }
-    std::cout << "Enter service index: ";
-    util::read(userInputIndex);
-    if (activeServicesMap.find(userInputIndex) == -1)
-    {
-        std::cout << "Invalid service index." << std::endl;
-        return nullptr;
-    }
-    return activeServicesMap[userInputIndex];
-}
-
-/*
-Function: createComboPackages
-Description: Creates a new combo package by selecting two active services and applying a discount.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::createComboPackages()
 {
-	util::clear();
-	auto serviceList = m_controller.getServices();
-    const int numberOfServicesInPackage = 2;
-	util::Vector<std::string> selectedServiceID;
-    for (int iterator = 0; iterator < numberOfServicesInPackage; iterator++)
-    {
-        const Service* chosenService = selectServiceFromServices(serviceList);
-        if (chosenService == nullptr)
-        {
-            std::cout << "Failed to create combo package!";
-            util::pressEnter();
-            return;
-        }
-        selectedServiceID.push_back(chosenService->getId());
-        util::clear();
-    }
-    std::string packageName;
-    double discountPercentage;
-    std::cout << "Enter combo package name: ";
-    util::read(packageName);
-    std::cout << "Enter discount percentage: ";
-    util::read(discountPercentage);
-    if (discountPercentage < 0.0 || discountPercentage > 100.0)
-    {
-        std::cout << "Error: Discount percentage must be between 0 and 100." << std::endl;
-        util::pressEnter();
-        return;
-    }
-    m_controller.createComboPackage(packageName, selectedServiceID, discountPercentage);
-    std::cout << "Combo package '" << packageName << "' created successfully." << std::endl;
-    util::pressEnter();
 }
 
-/*
-Function: displayComboPackagesWithIndex
-Description: Displays combo packages with index, ID, name, and discount percentage.
-Parameter: util::Map<int, const ComboPackage*>& currentComboPackageIndexMap - combo packages map
-Return type: void
-*/
-static void displayComboPackagesWithIndex(util::Map<int, const ComboPackage*>& currentComboPackageIndexMap)
-{
-	for (int iterator = 0; iterator < currentComboPackageIndexMap.getSize(); iterator++)
-	{
-		const ComboPackage* currentComboPackage = currentComboPackageIndexMap.getValueAt(iterator);
-		if (currentComboPackage == nullptr)
-		{
-			throw std::runtime_error("Error accessing the combopackage.\n");
-		}
-		if (iterator == 0)
-		{
-			std::cout << std::left
-				<< std::setw(8) << "Index"
-				<< std::setw(10) << "ID"
-				<< std::setw(20) << "Package Name"
-				<< std::setw(15) << "Discount (%)"
-				<< "\n";
-		}
-		std::cout << std::left
-			<< std::setw(8) << currentComboPackageIndexMap.getKeyAt(iterator)
-			<< std::setw(10) << currentComboPackage->getId()
-			<< std::setw(20) << currentComboPackage->getPackageName()
-			<< std::setw(15) << currentComboPackage->getDiscountPercentage()
-			<< "\n";
-	}
-}
-
-/*
-Function: selectComboPackage
-Description: Allows the admin to select an active combo package by index.
-Parameter: util::Map<std::string, const ComboPackage*>& currentComboPackages - combo packages list
-Return type: std::string - ID of the selected combo package
-*/
-static std::string selectComboPackage(util::Map<std::string, const ComboPackage*>& currentComboPackages)
-{
-	util::Map<int, const ComboPackage*> currentComboPackageIndexMap;
-	if (currentComboPackages.getSize() == 0)
-	{
-		throw std::runtime_error("No combo packages are available.\n");
-	}
-	int currentIndex = 1, choice, selectedIndex;
-	for (int iterator = 0; iterator < currentComboPackages.getSize(); iterator++)
-	{
-		if (currentComboPackages.getValueAt(iterator)->getState() == util::State::INACTIVE)
-		{
-			continue;
-		}
-		currentComboPackageIndexMap.insert(currentIndex++, currentComboPackages.getValueAt(iterator));
-	}
-	if (currentComboPackageIndexMap.getSize() == 0)
-	{
-		throw std::runtime_error("No combo packages currently active.");
-	}
-	displayComboPackagesWithIndex(currentComboPackageIndexMap);
-	std::cout << "Enter your choice(Index): ";
-	util::read(choice);
-	selectedIndex = currentComboPackageIndexMap.find(choice);
-	if (selectedIndex != -1)
-	{
-		std::string selectedComboPackageID = currentComboPackageIndexMap.getValueAt(selectedIndex)->getId();
-		return selectedComboPackageID;
-	}
-	else
-	{
-		std::cout << "Enter a valid choice.\n";
-		return "";
-	}
-}
-
-/*
-Function: removeComboPackage
-Description: Removes a selected combo package from the system.
-Parameter: None
-Return type: void
-*/
 void AdminMenu::removeComboPackage()
 {
-	util::clear();
-	util::Map<std::string, const ComboPackage*> currentComboPackages = m_controller.getComboPackages();
-	std::string selectedComboPackageID = selectComboPackage(currentComboPackages);
-	if (selectedComboPackageID != "")
-	{
-		m_controller.removeComboPackage(selectedComboPackageID);
-		std::cout << "Combo Package removed successfully.\n";
-	}
-	else
-	{
-		std::cout << "Combo package removal failed.\n";
-	}
-	util::pressEnter();
 }
 
 void AdminMenu::viewNotifications()

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.h

@@ -1,11 +1,3 @@
-/*
-File: AdminMenu.h
-Description: Header file declaring the AdminMenu class, which provides
-             administrative operations such as inventory management,
-             user management, service configuration, and notifications.
-Author: Trenser
-Date:19-May-2026
-*/
 #pragma once
 #include "Controller.h"
 

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.cpp

@@ -1,21 +1,54 @@
+/*
+File: CustomerMenu.cpp
+Description: Implementation file containing the method definitions of the
+             CustomerMenu class, including menu handling, service selection,
+             combo package booking, profile updates, and password management.
+Author: Trenser
+Date:19-May-2026
+*/
+#include <iomanip>
 #include "CustomerMenu.h"
+#include "Service.h"
+#include "InventoryItem.h"
+#include "ComboPackage.h"
+#include "Service.h"
 #include "InputHelper.h"
 #include "OutputHelper.h"
+#include "Validator.h"
+#include "Vector.h"
+#include "Utility.h"
+#include "Map.h"
 
+/*
+Function: showMenu
+Description: Displays the customer menu and handles user input until logout is selected.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::showMenu()
 {
-	bool isMenuActive = true;
+    while (true)
-	while (isMenuActive)
     {
         try
         {
             int choice;
             util::clear();
-			std::cout << "" << std::endl;
+            std::cout << "Customer Menu"
+                << "\n1. Select a service"
+                << "\n2. Select a combo package"
+                << "\n3. Update Profile"
+                << "\n4. Change Password"
+                << "\n5. View Service History"
+                << "\n6. Complete Payments"
+                << "\n7. View Invoices"
+                << "\n8. View Notifications"
+                << "\n9. Configure Notifications"
+                << "\n10. Logout"
+                << "\nEnter a choice: ";
             util::read(choice);
             if (!handleOperation(choice))
             {
-				isMenuActive = false;
+                break;
             }
         }
         catch (const std::exception& e)
@@ -26,29 +59,277 @@ void CustomerMenu::showMenu()
     }
 }
 
+/*
+Function: handleOperation
+Description: Executes the corresponding customer operation based on the selected menu choice.
+Parameter: int choice - selected menu option
+Return type: bool - true if menu continues, false if logout
+*/
 bool CustomerMenu::handleOperation(int choice)
 {
+    switch (choice)
+    {
+    case 1:
+        selectService();
+        break;
+    case 2:
+        selectComboPackage();
+        break;
+    case 3:
+        updateDetails();
+        break;
+    case 4:
+        changePassword();
+        break;
+    case 5:
+        viewServiceHistory();
+        break;
+    case 6:
+        completePayments();
+        break;
+    case 7:
+        viewInvoices();
+        break;
+    case 8:
+        viewNotifications();
+        break;
+    case 9:
+        configureNotifications();
+        break;
+    case 10:
+        logout();
         return false;
+    default:
+        std::cout << "Enter a valid choice!" << std::endl;
+        util::pressEnter();
+    }
+    return true;
 }
 
+/*
+Function: logout
+Description: Logs out the currently authenticated customer user.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::logout()
 {
+	m_controller.logout();
 }
 
+/*
+Function: changePassword
+Description: Allows the customer to change their password after validation.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::changePassword()
 {
+	std::string newPassword;
+	util::clear();
+	std::cout << "Enter new password: ";
+	util::read(newPassword);
+	m_controller.changePassword(newPassword);
+	if (!util::isPasswordValid(newPassword))
+	{
+		std::cout << "Error: Password is not strong enough!";
+		util::pressEnter();
+		return;
+	}
+	std::cout << "Password changed successfully";
+	util::pressEnter();
 }
 
+/*
+Function: updateDetails
+Description: Allows the customer to update their email and phone number after validation.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::updateDetails()
 {
+	std::string email, phone;
+	util::clear();
+	std::cout << "Enter new email: ";
+	util::read(email);
+	if (!util::isEmailValid(email))
+	{
+		std::cout << "Error: Email is invalid!";
+		util::pressEnter();
+		return;
+	}
+	std::cout << "Enter new phone: ";
+	util::read(phone);
+	if (!util::isPhoneNumberValid(phone))
+	{
+		std::cout << "Error: Phone number is invalid!";
+		util::pressEnter();
+		return;
+	}
+	m_controller.updateUserDetails(email, phone);
+	std::cout << "Profile details updated successfully";
+	util::pressEnter();
 }
 
+/*
+Function: selectServiceFromServices
+Description: Displays active services and allows the customer to select one by index.
+Parameter: const util::Map<std::string, const Service*>& services - list of services
+Return type: const Service* - selected service
+*/
+static const Service* selectServiceFromServices(const util::Map<std::string, const Service*>& services)
+{
+    util::Map<int, const Service*> activeServicesMap;
+    int currentIndex = 1;
+    int userInputIndex;
+    std::cout << std::left
+        << std::setw(10) << "Index"
+        << std::setw(15) << "Service ID"
+        << std::setw(25) << "Service Name"
+        << std::setw(15) << "Estimated Cost"
+        << std::endl;
+    for (int index = 0; index < services.getSize(); index++)
+    {
+        const Service* currentService = services.getValueAt(index);
+        if (currentService->getState() != util::State::ACTIVE)
+        {
+            continue;
+        }
+        activeServicesMap.insert(currentIndex, currentService);
+        double partsCost = calculatePartsCost(currentService);
+        std::cout << std::left
+            << std::setw(10) << currentIndex
+            << std::setw(15) << currentService->getId()
+            << std::setw(25) << currentService->getName()
+            << std::setw(15) << (currentService->getLaborCost() + partsCost)
+            << std::endl;
+        currentIndex++;
+    }
+    if (activeServicesMap.getSize() == 0)
+    {
+        std::cout << "No active services available." << std::endl;
+        return nullptr;
+    }
+    std::cout << "Enter service index: ";
+    util::read(userInputIndex);
+    if (activeServicesMap.find(userInputIndex) == -1)
+    {
+        std::cout << "Invalid service index." << std::endl;
+        return nullptr;
+    }
+    return activeServicesMap[userInputIndex];
+}
+
+/*
+Function: selectService
+Description: Allows the customer to select a service, provide vehicle details,
+             and book the service through the controller.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::selectService()
 {
+    std::string vehicleNumber, vehicleBrand, vehicleModel;
+	auto services = m_controller.getServices();
+    util::Vector<std::string> selectedServices;
+    util::clear();
+    const Service* selectedService = selectServiceFromServices(services);
+    if (selectedService == nullptr)
+    {
+        std::cout << "Failed to book service!";
+        util::pressEnter();
+        return;
+    }
+    selectedServices.push_back(selectedService->getId());
+    util::clear();
+    std::cout << "Enter vehicle number: ";
+    util::read(vehicleNumber);
+    std::cout << "Enter vehicle brand: ";
+    util::read(vehicleBrand);
+    std::cout << "Enter vehicle model: ";
+    util::read(vehicleModel);
+    m_controller.purchaseService(selectedServices, vehicleNumber, vehicleBrand, vehicleModel);
+    std::cout << "Service has been booked successfully";
+    util::pressEnter();
 }
 
+/*
+Function: selectComboPackageFromPackages
+Description: Displays active combo packages and allows the customer to select one by index.
+Parameter: const util::Map<std::string, const ComboPackage*>& comboPackages - list of combo packages
+Return type: const ComboPackage* - selected combo package
+*/
+static const ComboPackage* selectComboPackageFromPackages(const util::Map<std::string, const ComboPackage*>& comboPackages)
+{
+    util::Map<int, const ComboPackage*> activeComboPackages;
+    int currentIndex = 1;
+    int userInputIndex;
+    std::cout << std::left
+        << std::setw(10) << "Index"
+        << std::setw(15) << "Combo Package ID"
+        << std::setw(15) << "Combo Package Name"
+        << std::setw(15) << "Estimate Cost"
+        << std::endl;
+    for (int index = 0; index < comboPackages.getSize(); index++)
+    {
+        const ComboPackage* currentComboPackage = comboPackages.getValueAt(index);
+        if (currentComboPackage->getState() != util::State::ACTIVE)
+        {
+            continue;
+        }
+        activeComboPackages.insert(currentIndex, currentComboPackage);
+        std::cout << std::left
+            << std::setw(10) << currentIndex
+            << std::setw(15) << currentComboPackage->getId()
+            << std::setw(25) << currentComboPackage->getPackageName()
+            << std::setw(15) << calculateComboServiceEstimatedCost(currentComboPackage)
+            << std::endl;
+        currentIndex++;
+    }
+    if (activeComboPackages.getSize() == 0)
+    {
+        std::cout << "No active combo packages available." << std::endl;
+        return nullptr;
+    }
+    std::cout << "Enter combo package index: ";
+    util::read(userInputIndex);
+    if (activeComboPackages.find(userInputIndex) == -1)
+    {
+        std::cout << "Invalid combo package index." << std::endl;
+        return nullptr;
+    }
+    return activeComboPackages[userInputIndex];
+}
+
+/*
+Function: selectComboPackage
+Description: Allows the customer to select a combo package, provide vehicle details,
+             and book the package through the controller.
+Parameter: None
+Return type: void
+*/
 void CustomerMenu::selectComboPackage()
 {
+    std::string vehicleNumber, vehicleBrand, vehicleModel;
+    auto comboPackages = m_controller.getComboPackages();
+    util::clear();
+    const ComboPackage* selectedComboPackage = selectComboPackageFromPackages(comboPackages);
+    if (selectedComboPackage == nullptr)
+    {
+        std::cout << "Failed to book combo package!";
+        util::pressEnter();
+        return;
+    }
+    util::clear();
+    std::cout << "Enter vehicle number: ";
+    util::read(vehicleNumber);
+    std::cout << "Enter vehicle brand: ";
+    util::read(vehicleBrand);
+    std::cout << "Enter vehicle model: ";
+    util::read(vehicleModel);
+    m_controller.purchaseComboPackage(selectedComboPackage->getId(), vehicleNumber, vehicleBrand, vehicleModel);
+    std::cout << "Combo Package has been booked successfully";
+    util::pressEnter();
 }
 
 void CustomerMenu::viewServiceHistory()

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/CustomerMenu.h

@@ -1,3 +1,12 @@
+/*
+File: CustomerMenu.h
+Description: Header file declaring the CustomerMenu class, which provides
+             customer operations such as selecting services, booking combo
+             packages, updating profile details, managing payments, viewing
+             invoices, and configuring notifications.
+Author: Trenser
+Date:19-May-2026
+*/
 #pragma once
 #include "Controller.h"
 

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h

@@ -0,0 +1,62 @@
+/*
+File: MenuHelper.h
+Description: Header file declaring the MenuHelper class, which provides
+             utility functions for menu-driven operations such as
+             notification selection and display.
+Author: Trenser
+Date:19-May-2026
+*/
+#pragma once
+#include <string>
+#include <iomanip>
+#include "Notification.h"
+#include "Map.h"
+#include "InputHelper.h"
+#include "OutputHelper.h"
+
+/*
+Function: selectNotification
+Description: Displays a list of notifications with index, ID, title, and timestamp.
+             Allows the user to select a notification by index. Returns the selected
+             notification or nullptr if the selection is invalid.
+Parameter: const util::Vector<const Notification*>& notifications - list of notifications
+Return type: const Notification* - pointer to the selected notification
+*/
+inline const Notification* selectNotification(const util::Vector<const Notification*>& notifications)
+{
+    if (notifications.getSize() == 0)
+    {
+        std::cout << "No notifications available." << std::endl;
+        return nullptr;
+    }
+    std::cout << std::left
+        << std::setw(6) << "Index"
+        << std::setw(15) << "ID"
+        << std::setw(30) << "Title"
+        << std::setw(25) << "Timestamp"
+        << std::endl;
+    int currentIndex = 1;
+    for (int iterator = 0; iterator < notifications.getSize(); iterator++)
+    {
+        const Notification* currentNotification = notifications[iterator];
+        if (currentNotification)
+        {
+            std::cout << std::left
+                << std::setw(6) << currentIndex
+                << std::setw(15) << currentNotification->getId()
+                << std::setw(30) << currentNotification->getTitle()
+                << std::setw(25) << currentNotification->getCreatedAt().toString()
+                << std::endl;
+            currentIndex++;
+        }
+    }
+    int selectedIndex;
+    std::cout << "Select notification: ";
+    util::read(selectedIndex);
+    if (selectedIndex < 1 || selectedIndex > notifications.getSize())
+    {
+        std::cout << "Invalid selection." << std::endl;
+        return nullptr;
+    }
+    return notifications[selectedIndex - 1];
+}

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.cpp

@@ -1,40 +1,21 @@
-/*
-File: TechnicianMenu.cpp
-Description: Implementation file containing the method definitions of the
-             TechnicianMenu class, including menu handling, job completion,
-             notification viewing, password management, and logout logic.
-Author: Trenser
-Date:19-May-2026
-*/
 #include "TechnicianMenu.h"
 #include "InputHelper.h"
 #include "OutputHelper.h"
-#include "Validator.h"
 
-/*
-Function: showMenu
-Description: Displays the technician menu and handles user input until logout is selected.
-Parameter: None
-Return type: void
-*/
 void TechnicianMenu::showMenu()
 {
-    while (true)
+	bool isMenuActive = true;
+	while (isMenuActive)
 	{
 		try
 		{
 			int choice;
 			util::clear();
-            std::cout << "Technician Menu"
+			std::cout << "" << std::endl;
-                << "\n1. Mark Job as Completed"
-                << "\n2. View Notifications"
-                << "\n3. Change Password"
-                << "\n4. Logout"
-                << "\nEnter a choice: ";
 			util::read(choice);
 			if (!handleOperation(choice))
 			{
-                break;
+				isMenuActive = false;
 			}
 		}
 		catch (const std::exception& e)
@@ -45,35 +26,10 @@ void TechnicianMenu::showMenu()
 	}
 }
 
-/*
-Function: handleOperation
-Description: Executes the corresponding technician operation based on the selected menu choice.
-Parameter: int choice - selected menu option
-Return type: bool - true if menu continues, false if logout
-*/
 bool TechnicianMenu::handleOperation(int choice)
 {
-    switch (choice)
-    {
-    case 1:
-        completeJob();
-        break;
-    case 2:
-        viewNotifications();
-        break;
-    case 3:
-        changePassword();
-        break;
-    case 4:
-        logout();
 	return false;
-    default:
-        std::cout << "Enter a valid choice!" << std::endl;
-        util::pressEnter();
 }
-    return true;
-}
-
 
 void TechnicianMenu::completeJob()
 {
@@ -82,41 +38,3 @@ void TechnicianMenu::completeJob()
 void TechnicianMenu::viewNotifications()
 {
 }
-
-/*
-Function: logout
-Description: Logs out the currently authenticated technician user.
-Parameter: None
-Return type: void
-*/
-void TechnicianMenu::logout()
-{
-	m_controller.logout();
-}
-
-/*
-Function: changePassword
-Description: Allows the technician to change their password after validation.
-Parameter: None
-Return type: void
-*/
-void TechnicianMenu::changePassword()
-{
-	std::string newPassword;
-	while (true)
-	{
-		util::clear();
-		std::cout << "Enter new password: ";
-		util::read(newPassword);
-		if (!util::isPasswordValid(newPassword))
-		{
-			std::cout << "Error: Password is not strong enough!\n";
-			util::pressEnter();
-			continue;
-		}
-		m_controller.changePassword(newPassword);
-		std::cout << "Password changed successfully\n";
-		util::pressEnter();
-		break;
-	}
-}

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/TechnicianMenu.h

@@ -1,11 +1,3 @@
-/*
-File: TechnicianMenu.h
-Description: Header file declaring the TechnicianMenu class, which provides
-             technician operations such as job completion, notification viewing,
-             password management, and logout functionality.
-Author: Trenser
-Date:19-May-2026
-*/
 #pragma once
 #include "Controller.h"
 
@@ -18,6 +10,4 @@ public:
     void showMenu();
     void completeJob();
     void viewNotifications();
-    void logout();
-    void changePassword();
 };

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/UserInterface.cpp

@@ -9,7 +9,9 @@ Date:19-May-2026
 #include "UserInterface.h"
 #include "InputHelper.h"
 #include "OutputHelper.h"
+#include "Enums.h"
 #include "User.h"
+#include "Validator.h"
 
 /*
 Function: run
@@ -111,7 +113,47 @@ void UserInterface::login()
 	}
 }
 
+/*
+Function: registerCustomer
+Description: Registers a new customer by collecting and validating details such as
+			 username, name, email, password, and phone number. Delegates creation
+			 to the controller.
+Parameter: None
+Return type: void
+*/
 void UserInterface::registerCustomer()
 {
-
+	std::string username, name, email, phone, password;
+	util::clear();
+	std::cout << "Enter username: ";
+	util::read(username);
+	std::cout << "Enter name: ";
+	util::read(name);
+	std::cout << "Enter email: ";
+	util::read(email);
+	if (!util::isEmailValid(email))
+	{
+		std::cout << "Error: Email is invalid!";
+		util::pressEnter();
+		return;
+	}
+	std::cout << "Enter password: ";
+	util::read(password);
+	if (!util::isPasswordValid(password))
+	{
+		std::cout << "Error: Password is invalid!";
+		util::pressEnter();
+		return;
+	}
+	std::cout << "Enter phone: ";
+	util::read(phone);
+	if (!util::isPhoneNumberValid(phone))
+	{
+		std::cout << "Error: Phone number is invalid!";
+		util::pressEnter();
+		return;
+	}
+	m_controller.createCustomer(username, name, password, email, phone);
+	std::cout << "Registration is successful";
+	util::pressEnter();
 }