Implement Review Fixes

- Added tabular invoice list for better navigation
- Enabled user to select an invoice before viewing full details
- Displayed Payment Mode in detailed invoice view
- Removed duplicate pressEnter() calls
- Improved console messages and formatting for clarity

Fixes #1784

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

@@ -24,9 +24,10 @@ Parameters: None
 Returns: A new ServiceBooking object.
 */
 ServiceBooking::ServiceBooking()
-    : m_id("SRV" + std::to_string(++m_uid)),
+    : m_id("SBK" + std::to_string(++m_uid)),
     m_customer(nullptr),
     m_assignedTechnician(nullptr),
+    m_status(util::ServiceJobStatus::PENDING),
     m_discountPercentage(0.0) {}
 
 /*
@@ -56,7 +57,7 @@ ServiceBooking::ServiceBooking(
     const std::string& vehicleModel,
     double discountPercentage
 )
-    : m_id("SRV" + std::to_string(++m_uid)),
+    : m_id("SBK" + std::to_string(++m_uid)),
     m_status(status),
     m_services(services),
     m_customerId(customerId),

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

@@ -23,7 +23,6 @@ Date:19-May-2026
 #include "ServiceBooking.h"
 #include "ServiceManagementService.h"
 #include "Timestamp.h"
-#include "Timestamp.h"
 #include "User.h"
 #include "UserManagementService.h"
 #include "Utility.h"
@@ -100,7 +99,7 @@ void ServiceManagementService::purchaseComboPackage(const std::string& comboPack
 	}
 	const ComboPackage* comboPackage = comboPackagesMap[comboPackageID];
 	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());
+	ServiceBooking* serviceBooking = Factory::getObject<ServiceBooking>(util::ServiceJobStatus::PENDING, selectedServices, authenticatedUser->getId(), authenticatedUser, vehicleNumber, vehicleBrand, vehicleModel, comboPackage->getDiscountPercentage());
 	if (serviceBooking == nullptr)
 	{
 		throw std::runtime_error("Failed to create combo package service booking");
@@ -817,6 +816,10 @@ void ServiceManagementService::createJobCard(const std::string& bookingID, const
 	}
 	currentBooking->setAssignedTechnician(selectedTechnician);
 	currentBooking->setAssignedTechnicianId(selectedTechnician->getId());
+    if (currentBooking->getStatus() == util::ServiceJobStatus::PENDING)
+    {
+        currentBooking->setStatus(util::ServiceJobStatus::STARTED);
+    }
 	std::string title = "Job card created";
 	std::string message = "Job card created for the service and you are assigned for that.";
 	JobCard* jobCard = Factory::getObject<JobCard>(bookingID, currentBooking, currentService, serviceID, technicianID, selectedTechnician, util::Timestamp(), util::ServiceJobStatus::STARTED, util::Timestamp());
@@ -829,6 +832,9 @@ void ServiceManagementService::createJobCard(const std::string& bookingID, const
 	{
 		throw std::runtime_error("Failed to create job card.");
 	}
+    title = "Technician assigned";
+    message = "A technician has been assigned to your Service Booking with ID " + bookingID;
+    sendNotification(currentBooking->getCustomer(), title, message);
 }
 
 /*
@@ -906,9 +912,27 @@ Throws:
 void ServiceManagementService::removeService(const std::string& serviceID)
 {
 	util::Map<std::string, Service*>& currentServices = m_dataStore.getServices();
+    util::Map<std::string, ComboPackage*>& currentComboPackages =  m_dataStore.getComboPackages();
 	if (currentServices.find(serviceID) != -1)
 	{
 		currentServices.getValueAt(currentServices.find(serviceID))->setState(util::State::INACTIVE);
+        for (int iterator = 0; iterator < currentComboPackages.getSize(); iterator++)
+        {
+            ComboPackage* currentComboPackage = currentComboPackages.getValueAt(iterator);
+            if (currentComboPackage && currentComboPackage->getState() == util::State::ACTIVE)
+            {
+                util::Map<std::string, Service*> currentServices = currentComboPackage->getServices();
+                for (int iterator = 0; iterator < currentServices.getSize(); iterator++)
+                {
+                    auto currentService = currentServices.getValueAt(iterator);
+                    if (currentService->getId() == serviceID)
+                    {
+                        currentComboPackage->setState(util::State::INACTIVE);
+                        break;
+                    }
+                }
+            }
+        }
 	}
 	else
 	{
@@ -1033,11 +1057,11 @@ void ServiceManagementService::completeJob(const std::string& jobID)
 	}
 	else
 	{
-		throw std::runtime_error("Failed to complete the job, some error occured or job already completed.");
+		throw std::runtime_error("Failed to complete the job, some error occurred or job already completed.");
 	}
 	if (!jobStatusUpdated)
 	{
-		throw std::runtime_error("Failed to complete the job, some error occured or job already completed.");
+		throw std::runtime_error("Failed to complete the job, some error occurred or job already completed.");
 	}
 
 	serviceBookingCompleted = hasCompletedAllJobs(currentJob->getBookingId(), currentAssignedJobs);
@@ -1045,8 +1069,8 @@ void ServiceManagementService::completeJob(const std::string& jobID)
 	{
 		currentJob->getBooking()->setStatus(util::ServiceJobStatus::COMPLETED);
 		paymentManagementService.generateInvoice(currentJob->getBooking());
-		std::string title = "Service Booking completed,Invoice Generated.\n";
+		std::string title = "Service Booking completed,Invoice Generated.";
-		std::string message = "Services completed for the booking and invoice generated.\n";
+		std::string message = "Services completed for the booking and invoice generated.";
 		sendNotification(currentJob->getBooking()->getCustomer(), title, message);
 	}
 }

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

@@ -297,6 +297,9 @@ Return type: void
 */
 void UserManagementService::removeUser(const std::string& userID)
 {
+	InventoryManagementService inventoryManagementService;
+	PaymentManagementService paymentManagementService;
+	ServiceManagementService serviceManagementService;
 	int index = m_dataStore.getUsers().find(userID);
 	if (index != -1)
 	{
@@ -304,6 +307,9 @@ void UserManagementService::removeUser(const std::string& userID)
 		if (user != nullptr)
 		{
 			user->setState(util::State::INACTIVE);
+			inventoryManagementService.detach(user);
+			paymentManagementService.detach(user);
+			serviceManagementService.detach(user);
 		}
 	}
 }
@@ -315,7 +321,7 @@ util::Map<std::string, User*> UserManagementService::getUsers(util::UserType typ
 	for (int iterator = 0; iterator < currentUsers.getSize(); iterator++)
 	{
 		User* currentUser = currentUsers.getValueAt(iterator);
-		if (currentUser->getUserType() == type)
+		if (currentUser && currentUser->getState() == util::State::ACTIVE && currentUser->getUserType() == type)
 		{
 			filteredUsersMap.insert(currentUser->getId(), currentUser);
 		}

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/utilities/OutputHelper.h

@@ -21,4 +21,28 @@ namespace util
     {
         std::cout << "\x1B[2J\x1B[H" << std::flush;
     }
+
+    /*
+    Function: truncateString
+    Description:
+        Truncates a string if its length exceeds the given maximum length.
+        The truncated string ends with "..." to indicate omitted characters.
+    Parameters:
+        - text: const std::string&, input string to truncate
+        - maxLength: size_t, maximum allowed length of the returned string
+    Returns:
+        - std::string: Original string if within limit, otherwise truncated string with "..."
+    */
+    inline std::string truncateString(const std::string& text, size_t maxLength)
+    {
+        if (text.length() <= maxLength)
+        {
+            return text;
+        }
+        if (maxLength <= 3)
+        {
+            return std::string(maxLength, '.');
+        }
+        return text.substr(0, maxLength - 3) + "...";
+    }
 }

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

@@ -218,13 +218,15 @@ void AdminMenu::addInventoryItem()
 	int choice, quantity;
 	double price;
 	std::string partName;
-	std::cout << "1. Add new item \n2. Add Quantity\nEnter your choice : ";
+	std::cout << "Add Inventory Item\n";
+	std::cout << "1. Add new item \n2. Restock Item\n\nEnter your choice : ";
 	util::read(choice);
 	switch (choice)
 	{
 	case 1:
 	{
-		std::cout << "--------Enter Item Details----------\n";
+		util::clear();
+		std::cout << "Enter Item Details\n";
 		std::cout << "Part Name : ";
 		util::read(partName);
 		std::cout << "Quantity : ";
@@ -232,15 +234,21 @@ void AdminMenu::addInventoryItem()
 		std::cout << "Price : ";
 		util::read(price);
 		m_controller.addInventoryItem(partName, quantity, price);
-		std::cout << "New Item " << partName << " added to the Inventory.\n";
+		std::cout << "\nNew Item " << partName << " added to the Inventory.\n\n";
 		break;
 	}
 	case 2:
 	{
+		util::clear();
+		std::cout << "Select Item to Restock\n";
 		auto inventoryItems = m_controller.getInventoryItems();
 		addQuantityToItem(inventoryItems, m_controller);
 		break;
 	}
+	default:
+	{
+		std::cout << "\nEnter a valid choice.\n\n";
+	}
 	}
 	util::pressEnter();
 }
@@ -333,14 +341,16 @@ Returns:
 void AdminMenu::assignJob()
 {
 	util::clear();
+	std::cout << "Assign Job to Technician\n";
 	std::string selectedService;
 	bool hasPendingService = false;
 	auto currentBookings = m_controller.getServiceBookings();
+	auto pendingServiceBookings = filterActiveServiceBookings(currentBookings);
 	auto availableTechnicians = m_controller.getUsers(util::UserType::TECHNICIAN);
-	int bookingsSize = currentBookings.getSize();
+	int bookingsSize = pendingServiceBookings.getSize();
 	util::Map<int, const ServiceBooking*> serviceBookingsMap;
 	util::Map<int, const User*> currentAvailableTechniciansMap;
-	if (listServiceBookings(currentBookings, bookingsSize, serviceBookingsMap))
+	if (listServiceBookings(pendingServiceBookings, bookingsSize, serviceBookingsMap))
 	{
 		const ServiceBooking* selectedService = selectPendingServiceBookings(serviceBookingsMap);
 		if (selectedService)
@@ -356,14 +366,19 @@ void AdminMenu::assignJob()
 					{
 						m_controller.createJobCard(selectedService->getId(), selectedTechnician->getId(), servicesInBooking.getValueAt(iterator)->getId());
 					}
+					std::cout << "Job card created for each service and technician successfully assigned.\n\n";
 				}
 			}
 			else
 			{
-				std::cout << "No technicians are currently available.";
+				std::cout << "No technicians are currently available.\n\n";
 			}
 		}
 	}
+	else
+	{
+		std::cout << "No pending service bookings available.\n\n";
+	}
 	util::pressEnter();
 }
 
@@ -378,17 +393,19 @@ Returns:
 void AdminMenu::createService()
 {
 	util::clear();
+	std::cout << "Create Service\n";
 	std::string serviceName;
 	double labourCost;
 	std::cout << "Enter the service name: ";
 	util::read(serviceName);
 	util::Map<std::string, const InventoryItem*> currentInventoryItems = m_controller.getInventoryItems();
+	util::Map<std::string, const InventoryItem*> activeInventoryItems = filterActiveItems(currentInventoryItems);
 	util::Vector<std::string> selectedInventoryItems;
-	selectInventoryItems(currentInventoryItems,selectedInventoryItems);
+	selectInventoryItems(activeInventoryItems,selectedInventoryItems);
-	std::cout << "Enter the labour cost: ";
+	std::cout << "\nEnter the labour cost: ";
 	util::read(labourCost);
     m_controller.createService(serviceName, selectedInventoryItems, labourCost);
-    std::cout << "Service created sucessfully.\n";
+    std::cout << "\nService created sucessfully.\n\n";
 	util::pressEnter();
 }
 
@@ -403,17 +420,19 @@ Returns:
 void AdminMenu::removeService()
 {
 	util::clear();
+	std::cout << "Remove Service\n";
 	std::string selectedServiceID;
 	util::Map<std::string, const Service*> currentServices = m_controller.getServices();
-	selectedServiceID = selectServicesToRemove(currentServices);
+	util::Map<std::string, const Service*> currentActiveServices = filterActiveServices(currentServices);
+	selectedServiceID = selectServicesToRemove(currentActiveServices);
 	if (selectedServiceID != "")
 	{
 		m_controller.removeService(selectedServiceID);
-		std::cout << "Service removed sucessfully.";
+		std::cout << "Service removed sucessfully.\n\n";
 	}
 	else
 	{
-		std::cout << "Failed  to remove service.";
+		std::cout << "Failed  to remove service.\n\n";
 	}
 	util::pressEnter();
 }
@@ -428,36 +447,37 @@ void AdminMenu::addTechnician()
 {
 	util::clear();
 	std::string username, name, password, email, phoneNumber;
-	std::cout << std::left << std::setw(25) << "Enter Technician Username: ";
+	std::cout << "Add Technician\n";
+	std::cout << "Enter Technician Username: ";
 	util::read(username);
-	std::cout << std::left << std::setw(25) << "Enter Technician Name: ";
+	std::cout << "Enter Technician Name: ";
 	util::read(name);
-	std::cout << std::setw(25) << "Enter Technician Password: ";
+	std::cout << "Enter Technician Password: ";
 	util::read(password);
 	if(!util::isPasswordValid(password))
 	{
-		std::cout << "Error: Password is invalid!";
+		std::cout << "\nError: Password is invalid!\n\n";
 		util::pressEnter();
 		return;
 	}
-	std::cout << std::setw(25) << "Enter Technician Email: ";
+	std::cout << "Enter Technician Email: ";
 	util::read(email);
 	if(!util::isEmailValid(email))
 	{
-		std::cout << "Error: Email is invalid!";
+		std::cout << "\nError: Email is invalid!\n\n";
 		util::pressEnter();
 		return;
 	}
-	std::cout << std::setw(25) << "Enter Technician Phone: ";
+	std::cout << "Enter Technician Phone: ";
 	util::read(phoneNumber);
 	if(!util::isPhoneNumberValid(phoneNumber))
 	{
-		std::cout << "Error: Phone Number is invalid!";
+		std::cout << "\nError: Phone Number is invalid!\n\n";
 		util::pressEnter();
 		return;
 	}
 	m_controller.createTechnician(username, name, password, email, phoneNumber);
-	std::cout << "\nTechnician Added Successfully.\n";
+	std::cout << "\nTechnician Added Successfully.\n\n";
 	util::pressEnter();
 }
 
@@ -509,7 +529,10 @@ Return type: void
 void AdminMenu::createComboPackages()
 {
 	util::clear();
+	std::cout << "Create Combo Packages\n";
 	auto serviceList = m_controller.getServices();
+	auto activeServices = filterActiveServices(serviceList);
+	int currentActiveServicesCount = activeServices.getSize();
     const int NUMBER_OF_SERVICE_PER_PACKAGE = 2;
 	util::Vector<std::string> selectedServiceID;
     for (int iterator = 0; iterator < NUMBER_OF_SERVICE_PER_PACKAGE; iterator++)
@@ -517,10 +540,10 @@ void AdminMenu::createComboPackages()
         const Service* chosenService = nullptr;
         while (true)
         {
-            chosenService = selectServiceFromServices(serviceList);
+            chosenService = selectServiceFromServices(activeServices);
             if (chosenService == nullptr)
             {
-                std::cout << "Failed to create combo package!";
+                std::cout << "Failed to create combo package!\n\n";
                 util::pressEnter();
                 return;
             }
@@ -535,11 +558,19 @@ void AdminMenu::createComboPackages()
             }
             if (alreadyChosen)
             {
+				if (currentActiveServicesCount < 2)
+				{
+					break;
+				}
                 std::cout << "Service already selected. Please choose a different one." << std::endl;
                 continue; 
             }
             selectedServiceID.push_back(chosenService->getId());
-            util::clear();
+            break;
+        }
+		if (currentActiveServicesCount < 2)
+		{
+			std::cout << "All the available services selected\n\n";
 			break;
 		}
     }
@@ -569,16 +600,17 @@ Return type: void
 void AdminMenu::removeComboPackage()
 {
 	util::clear();
+	std::cout << "Remove Combo Package\n";
 	util::Map<std::string, const ComboPackage*> currentComboPackages = m_controller.getComboPackages();
 	std::string selectedComboPackageID = selectComboPackage(currentComboPackages);
-	if (selectedComboPackageID != "")
+	if (!selectedComboPackageID.empty())
 	{
 		m_controller.removeComboPackage(selectedComboPackageID);
-		std::cout << "Combo Package removed successfully.\n";
+		std::cout << "Combo Package removed successfully.\n\n";
 	}
 	else
 	{
-		std::cout << "Combo package removal failed.\n";
+		std::cout << "Combo package removal failed.\n\n";
 	}
 	util::pressEnter();
 }

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

@@ -220,20 +220,24 @@ void CustomerMenu::selectComboPackage()
     util::clear();
     std::cout << "Select a Combo Package\n";
     auto comboPackages = m_controller.getComboPackages();
-    if (comboPackages.isEmpty())
+    util::Map<std::string, const ComboPackage*> activeComboPackages = filterComboPackages(comboPackages);
+    if (activeComboPackages.isEmpty())
     {
-        std::cout << "No combo packages available!";
+        std::cout << "No combo packages available!\n\n";
         util::pressEnter();
         return;
     }
-    const ComboPackage* selectedComboPackage = selectComboPackageFromPackages(comboPackages);
+    const ComboPackage* selectedComboPackage = selectComboPackageFromPackages(activeComboPackages);
     if (selectedComboPackage == nullptr)
     {
-        std::cout << "Failed to book combo package!";
+        std::cout << "Failed to book combo package!\n\n";
         util::pressEnter();
         return;
     }
+    std::cout << "Combo Package selected\n";
+    util::pressEnter();
     util::clear();
+    std::cout << "Enter the vehicle details\n";
     std::cout << "Enter vehicle number: ";
     util::read(vehicleNumber);
     std::cout << "Enter vehicle brand: ";
@@ -241,7 +245,7 @@ void CustomerMenu::selectComboPackage()
     std::cout << "Enter vehicle model: ";
     util::read(vehicleModel);
     m_controller.purchaseComboPackage(selectedComboPackage->getId(), vehicleNumber, vehicleBrand, vehicleModel);
-    std::cout << "Combo Package has been booked successfully";
+    std::cout << "Combo Package has been booked successfully\n\n";
     util::pressEnter();
 }
 
@@ -358,6 +362,7 @@ Returns:
 void CustomerMenu::viewInvoices()
 {
 	util::clear();
+    std::cout << "View Invoices\n";
 	util::Map<std::string, const Invoice*> currentUserInvoices = m_controller.getInvoicesByUser();
 	displayInvoices(currentUserInvoices);
     util::pressEnter();

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

@@ -39,8 +39,12 @@ Returns:
 */
 inline std::string selectServicesToRemove(util::Map<std::string, const Service*> currentServices)
 {
+    if (currentServices.getSize() == 0)
+    {
+        std::cout << "No Services Currently Available.\n";
+        return "";
+    }
     util::Map<int, const Service*> currentServicesMap;
-    bool hasServices = false;
     int currentIndex = 1, choice;
     std::cout << std::left
         << std::setw(6) << "Index"
@@ -51,7 +55,7 @@ inline std::string selectServicesToRemove(util::Map<std::string, const Service*>
     for (int iterator = 0; iterator < currentServices.getSize(); iterator++)
     {
         const Service* currentService = currentServices.getValueAt(iterator);
-        if (currentService->getState() == util::State::INACTIVE)
+        if (currentService == nullptr || currentService->getState() == util::State::INACTIVE)
         {
             continue;
         }
@@ -61,14 +65,8 @@ inline std::string selectServicesToRemove(util::Map<std::string, const Service*>
             << std::setw(20) << currentService->getName()
             << std::setw(10) << currentService->getLaborCost()
             << std::endl;
-        hasServices = true;
         currentServicesMap.insert(currentIndex++, currentService);
     }
-    if (!hasServices)
-    {
-        std::cout << "No services currently available." << std::endl;
-        return "";
-    }
     std::cout << "Enter your choice: ";
     util::read(choice);
     if (currentServicesMap.find(choice) != -1)
@@ -93,16 +91,17 @@ Returns:
 */
 inline void selectInventoryItems(util::Map<std::string, const InventoryItem*>& currentInventoryItems, util::Vector<std::string>& selectedInventoryItems)
 {
-	bool doRun = true, hasInventoryItems = false;
+    bool doRun = true;
     util::Map<int, const InventoryItem*> currentInventoryMap;
-	int currentIndex = 1;
     int choice;
     if (currentInventoryItems.getSize() == 0)
     {
-		std::cout << "Inventory empty.";
+        std::cout << "No Items Present, Inventory empty.\n";
+        return;
     }
     while (doRun)
-{
+    {
+        std::cout << "\nSelect Required Items\n";
         bool hasInventoryItems = false;
         int currentIndex = 1;
         currentInventoryMap.clear();
@@ -116,7 +115,7 @@ inline void selectInventoryItems(util::Map<std::string, const InventoryItem*>& c
         for (int iterator = 0; iterator < currentInventoryItems.getSize(); iterator++)
         {
             const InventoryItem* currentInventoryItem = currentInventoryItems.getValueAt(iterator);
-			if (currentInventoryItem->getState() == util::State::INACTIVE)
+            if (currentInventoryItem == nullptr || currentInventoryItem->getState() == util::State::INACTIVE)
             {
                 continue;
             }
@@ -127,35 +126,54 @@ inline void selectInventoryItems(util::Map<std::string, const InventoryItem*>& c
                 << std::setw(10) << currentInventoryItem->getPrice()
                 << std::setw(10) << currentInventoryItem->getQuantity()
                 << std::endl;
-
-			hasInventoryItems = true;
             currentInventoryMap.insert(currentIndex++, currentInventoryItem);
+            hasInventoryItems = true;
         }
         if (!hasInventoryItems)
         {
-			std::cout << "No items present in the inventory." << std::endl;
-			doRun = false;
             break;
         }
         std::cout << "Select the item (Index) or enter -1 to exit: ";
         util::read(choice);
 
         if (choice == -1)
-{
+        {
             doRun = false;
         }
         else if (currentInventoryMap.find(choice) != -1)
-{
+        {
-			selectedInventoryItems.push_back(currentInventoryMap.getValueAt(choice)->getId());
+            selectedInventoryItems.push_back(currentInventoryMap.getValueAt(currentInventoryMap.find(choice))->getId());
-			std::cout << "Item added successfully." << std::endl;
+            std::cout << "Item added successfully.\n" << std::endl;
         }
         else
         {
-			std::cout << "Enter a valid integer." << std::endl;
+            std::cout << "Enter a valid integer.\n" << std::endl;
         }
     }
 }
 
+/*
+Function: filterActiveServiceBookings
+Description: Filters the given service bookings and returns only bookings with PENDING status.
+Parameters:
+    - currentBookings: util::Map<std::string, const ServiceBooking*>, collection of current service bookings
+Returns:
+    - util::Map<std::string, const ServiceBooking*>: map containing only active (PENDING) service bookings
+*/
+inline util::Map<std::string, const ServiceBooking*> filterActiveServiceBookings(util::Map<std::string, const ServiceBooking*>& currentBookings)
+{
+    util::Map<std::string, const ServiceBooking*> activeServiceBookings;
+    for (int iterator = 0; iterator < currentBookings.getSize(); iterator++)
+    {
+        const ServiceBooking* currentServiceBooking = currentBookings.getValueAt(iterator);
+        if (currentServiceBooking && currentServiceBooking->getStatus() == util::ServiceJobStatus::PENDING)
+        {
+            activeServiceBookings.insert(currentServiceBooking->getId(), currentServiceBooking);
+        }
+    }
+    return activeServiceBookings;
+}
+
 /*
 Function: listServiceBookings  
 Description: Lists all pending service bookings and maps them to indices for selection.
@@ -168,8 +186,12 @@ Returns:
 */
 inline bool listServiceBookings(util::Map<std::string, const ServiceBooking*>& currentBookings, int& bookingsSize, util::Map<int, const ServiceBooking*>& serviceBookingsMap)
 {
+    if (currentBookings.getSize() == 0)
+    {
+        return false;
+    }
     int currentIndex = 1;
-	bool hasPendingService = false;
+    std::cout << "\nSelect Service Booking" << std::endl;
     std::cout << std::left
         << std::setw(10) << "Index"
         << std::setw(10) << "ID"
@@ -179,15 +201,12 @@ inline bool listServiceBookings(util::Map<std::string, const ServiceBooking*>& c
         << std::setw(15) << "VehicleNo"
         << std::setw(15) << "Brand"
         << std::setw(15) << "Model"
-		<< std::setw(20) << "Technician"
-		<< std::setw(15) << "TechnicianID"
         << std::endl;
     for (int iterator = 0; iterator < bookingsSize; iterator++)
     {
         const ServiceBooking* currentBooking = currentBookings.getValueAt(iterator);
         if (currentBooking && currentBooking->getStatus() == util::ServiceJobStatus::PENDING)
         {
-			hasPendingService = true;
             const User* currentAssignedTechnician = currentBooking->getAssignedTechnician();
             std::cout << std::left
                 << std::setw(10) << currentIndex
@@ -198,16 +217,9 @@ inline bool listServiceBookings(util::Map<std::string, const ServiceBooking*>& c
                 << std::setw(15) << currentBooking->getVehicleNumber()
                 << std::setw(15) << currentBooking->getVehicleBrand()
                 << std::setw(15) << currentBooking->getVehicleModel()
-				<< std::setw(20) << ((currentAssignedTechnician == nullptr ||  currentAssignedTechnician->getName().empty()) ? "Null" : currentAssignedTechnician->getName())
-				<< std::setw(15) << ((currentAssignedTechnician == nullptr || currentAssignedTechnician->getId().empty()) ? "Null" : currentAssignedTechnician->getId())
                 << std::endl;
             serviceBookingsMap.insert(currentIndex++, currentBooking);
         }
-	}
-	if (!hasPendingService)
-    {
-		std::cout << "No pending service available." << std::endl;
-		return false;
     }
     return true;
 }
@@ -223,15 +235,15 @@ Returns:
 inline const ServiceBooking* selectPendingServiceBookings(util::Map<int, const ServiceBooking*>& serviceBookingsMap)
 {
 	int userInputIndex;
-	std::cout << "Enter a valid service index: ";
+	std::cout << "\nEnter a service index: ";
     util::read(userInputIndex);
 	if (serviceBookingsMap.find(userInputIndex) != -1)
     {
-		return serviceBookingsMap.getValueAt(userInputIndex);
+		return serviceBookingsMap.getValueAt(serviceBookingsMap.find(userInputIndex));
 	}
 	else
 	{
-		std::cout << "Enter a valid index.";
+		std::cout << "Enter a valid index.\n\n";
         return nullptr;
     }
 }
@@ -250,6 +262,7 @@ inline void listAvailableTechnicians(util::Map<std::string, const User*> current
 {
 	bool hasTechnicians = false;
     int currentIndex = 1;
+    std::cout << "\nSelect Technician\n";
     std::cout << std::left
 		<< std::setw(6) << "Index"
 		<< std::setw(15) << "Technician ID"
@@ -272,7 +285,7 @@ inline void listAvailableTechnicians(util::Map<std::string, const User*> current
     }
 	if (!hasTechnicians)
     {
-		std::cout << "No technicians currently available.";
+		std::cout << "No technicians currently available.\n\n";
     }
 }
 
@@ -285,16 +298,17 @@ Returns:
 	- const User*: Pointer to the selected technician, or nullptr if invalid
 */
 inline const User* selectTechnician(util::Map<int, const User*>& currentAvailableTechniciansMap)
-    {
+{
     int userInputIndex;
+    std::cout << "\nEnter technician index: ";
     util::read(userInputIndex);
     if (currentAvailableTechniciansMap.find(userInputIndex) != -1)
     {
-		return currentAvailableTechniciansMap.getValueAt(userInputIndex);
+        return currentAvailableTechniciansMap.getValueAt(currentAvailableTechniciansMap.find(userInputIndex));
     }
     else
     {
-		std::cout << "Enter a valid index.";
+        std::cout << "Enter a valid index.\n\n";
         return nullptr;
     }
 }
@@ -309,19 +323,18 @@ Returns:
 */
 inline std::string selectInvoiceFromUserForPayment(const util::Map<std::string, const Invoice*>& currentInvoices)
 {
-    util::clear();
 	int currentIndex = 1, choice;
 	util::Map<int, const Invoice*> pendingInvoicesForPayment;
     std::cout << std::left
-		<< std::setw(6) << "Index"
+        << std::setw(8) << "Index"
-		<< std::setw(12) << "BookingID"
+        << std::setw(15) << "Booking ID"
-		<< std::setw(15) << "VehicleBrand"
+        << std::setw(20) << "Vehicle Brand"
-		<< std::setw(15) << "VehicleNumber"
+        << std::setw(20) << "Vehicle Number"
-		<< std::setw(12) << "Technician ID"
+        << std::setw(18) << "Technician ID"
-		<< std::setw(20) << "Technician Name"
+        << std::setw(25) << "Technician Name"
-		<< std::setw(10) << "Discount(%)"
+        << std::setw(15) << "Discount(%)"
-		<< std::setw(12) << "TotalAmount"
+        << std::setw(15) << "TotalAmount"
-		<< std::setw(20) << "InvoiceDate"
+        << std::setw(22) << "Invoice Timestamp"
         << std::endl;
 	for (int iterator = 0; iterator < currentInvoices.getSize(); iterator++)
 	{
@@ -330,17 +343,17 @@ inline std::string selectInvoiceFromUserForPayment(const util::Map<std::string,
 {
 			const User* currentTechnician = currentInvoice->getBooking()->getAssignedTechnician();
             std::cout << std::left
-				<< std::setw(6) << currentIndex
+                << std::setw(8) << currentIndex
-				<< std::setw(12) << currentInvoice->getBookingId()
+                << std::setw(15) << currentInvoice->getBookingId()
-				<< std::setw(15) << currentInvoice->getBooking()->getVehicleBrand()
+                << std::setw(20) << currentInvoice->getBooking()->getVehicleBrand()
-				<< std::setw(15) << currentInvoice->getBooking()->getVehicleNumber()
+                << std::setw(20) << currentInvoice->getBooking()->getVehicleNumber()
-				<< std::setw(12) << ((currentTechnician != nullptr && currentTechnician->getId() != "") ? 
+                << std::setw(18) << ((currentTechnician != nullptr && currentTechnician->getId() != "") ?
                     currentTechnician->getId() : "Null")
-				<< std::setw(20) << ((currentTechnician != nullptr && currentTechnician->getName() != "") ? 
+                << std::setw(25) << ((currentTechnician != nullptr && currentTechnician->getName() != "") ?
                     currentTechnician->getName() : "Null")
-				<< std::setw(10) << currentInvoice->getDiscountPercentage()
+                << std::setw(15) << currentInvoice->getDiscountPercentage()
-				<< std::setw(12) << currentInvoice->getTotalAmount()
+                << std::setw(15) << currentInvoice->getTotalAmount()
-				<< std::setw(20) << currentInvoice->getInvoiceDate().toString()
+                << std::setw(22) << currentInvoice->getInvoiceDate().toString()
                 << std::endl;
 			pendingInvoicesForPayment.insert(currentIndex++, currentInvoice);
 		}
@@ -376,6 +389,9 @@ Returns:
 inline util::PaymentMode selectPaymentMode()
 {
     int choice;
+    while (true)
+    {
+        util::clear();
         std::cout << "Enter the payment Mode\n1.OFFLINE\n2.ONLINE\nChoice: ";
         util::read(choice);
         if (choice == 1)
@@ -390,8 +406,76 @@ inline util::PaymentMode selectPaymentMode()
         }
         else
         {
-		std::cout << "Invalid choice. Offline mode selected.\n";
+            std::cout << "Invalid choice. Try again.\n";
-		return util::PaymentMode::OFFLINE;
+            util::pressEnter();
+        }
+    }
+}
+
+/*
+Function: displayInvoicesInTabularForm
+Description:
+    Displays all invoices in a tabular format. Each row shows booking details,
+    vehicle info, technician details, discount, total amount, invoice date,
+    and payment status. If inventory items exist for an invoice, they are
+    displayed in a separate table below the invoice row.
+Parameters:
+    - currentInvoices: util::Map<std::string, const Invoice*>
+      Map of invoice IDs to Invoice pointers.
+Returns:
+    - void
+*/
+inline const Invoice* selectInvoiceToDisplay(util::Map<std::string, const Invoice*>& currentInvoices)
+{
+    int currentIndex = 1, choice;
+    util::Map<int, const Invoice*> currentInvoicesIndexMap;
+    if (currentInvoices.isEmpty())
+    {
+        std::cout << "No invoices available.\n\n";
+        return nullptr;
+    }
+    std::cout  
+        << std::left
+        << std::setw(10) << "Index"
+        << std::setw(12) << "BookingID"
+        << std::setw(15) << "VehicleNumber"
+        << std::setw(20) << "TechnicianName"
+        << std::setw(15) << "TotalAmount"
+        << std::setw(25) << "InvoiceDate"
+        << std::setw(15) << "PaymentStatus"
+        << std::setw(15) << "PaymentMode"
+        << std::endl;
+    for (int iterator = 0; iterator < currentInvoices.getSize(); iterator++)
+    {
+        const Invoice* currentInvoice = currentInvoices.getValueAt(iterator);
+        if (!currentInvoice)
+        {
+            continue;
+        }
+        const User* currentTechnician = currentInvoice->getBooking()->getAssignedTechnician();
+        std::cout << std::left
+            << std::setw(10) << currentIndex
+            << std::setw(12) << currentInvoice->getBookingId()
+            << std::setw(15) << currentInvoice->getBooking()->getVehicleNumber()
+            << std::setw(20) << ((currentTechnician && !currentTechnician->getName().empty()) ? currentTechnician->getName() : "NULL")
+            << std::setw(15) << currentInvoice->getTotalAmount()
+            << std::setw(25) << currentInvoice->getInvoiceDate().toString()
+            << std::setw(15) << util::getPaymentStatusString(currentInvoice->getStatus())
+            << std::setw(15) << util::getPaymentModeString(currentInvoice->getPaymentMethod())
+            << std::endl;
+        currentInvoicesIndexMap.insert(currentIndex++, currentInvoice);
+    }
+    std::cout << "Enter an index: ";
+    util::read(choice);
+    int currentSelectedIndex = currentInvoicesIndexMap.find(choice);
+    if (currentSelectedIndex != -1)
+    {
+        return currentInvoicesIndexMap.getValueAt(currentSelectedIndex);
+    }
+    else
+    {
+        std::cout << "Enter a valid index.\n";
+        return nullptr;
     }
 }
 
@@ -408,35 +492,53 @@ Throws:
 */
 inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserInvoices)
 {
+    std::cout << std::endl;
     if (currentUserInvoices.getSize() == 0)
     {
-		std::cout << "No invoices found for this account." << std::endl;
+        std::cout << "No invoices found for this account.\n\n";
-		util::pressEnter();
         return;
     }
     else
     {
-		for (int index = 0; index < currentUserInvoices.getSize(); index++)
+        bool doRun = true;
+        do
         {
-			const Invoice* currentInvoice = currentUserInvoices.getValueAt(index);
+            const Invoice* selectedInvoice;
-			if (currentInvoice)
+            int choice;
+            selectedInvoice = selectInvoiceToDisplay(currentUserInvoices);
+            if (selectedInvoice)
             {
-				const User* currentTechnician = currentInvoice->getBooking()->getAssignedTechnician();
+                const User* currentTechnician = selectedInvoice->getBooking()->getAssignedTechnician();
-				std::cout << "\nInvoice Details\n";
+                util::clear();
-				std::cout << "Booking ID: " << currentInvoice->getBookingId() << std::endl;
+                std::cout << "Invoice Details\n";
-				std::cout << "Vehicle Brand: " << currentInvoice->getBooking()->getVehicleBrand() << std::endl;
+                std::cout << std::left << std::setw(20) << "Booking ID:"
-				std::cout << "Vehicle Number: " << currentInvoice->getBooking()->getVehicleNumber() << std::endl;
+                    << selectedInvoice->getBookingId() << std::endl;
-				std::cout << "Technician ID: " <<
+                std::cout << std::left << std::setw(20) << "Vehicle Brand:"
-					((currentTechnician != nullptr && currentTechnician->getId() != "") ? 
+                    << selectedInvoice->getBooking()->getVehicleBrand() << std::endl;
-						currentTechnician->getId() : "Null") << std::endl;
+                std::cout << std::left << std::setw(20) << "Vehicle Number:"
-				std::cout << "Technician Name: " <<
+                    << selectedInvoice->getBooking()->getVehicleNumber() << std::endl;
-					((currentTechnician != nullptr && currentTechnician->getName() != "") ?
+                std::cout << std::left << std::setw(20) << "Technician ID:"
-						currentTechnician->getName() : "Null") << std::endl;
+                    << ((currentTechnician != nullptr && !currentTechnician->getId().empty())
-				std::cout << "Discount(%): " << currentInvoice->getDiscountPercentage() << std::endl;
+                        ? currentTechnician->getId() : "NULL") << std::endl;
-				std::cout << "Total Amount: " << currentInvoice->getTotalAmount() << std::endl;
+                std::cout << std::left << std::setw(20) << "Technician Name:"
-				std::cout << "Invoice Date: " << currentInvoice->getInvoiceDate().toString() << std::endl;
+                    << ((currentTechnician != nullptr && !currentTechnician->getName().empty())
-				std::cout << "Payment Status: " << util::getPaymentStatusString(currentInvoice->getStatus()) << std::endl;
+                        ? currentTechnician->getName() : "NULL") << std::endl;
-				auto inventoryItemsInInvoice = currentInvoice->getParts();
+                std::cout << std::left << std::setw(20) << "Discount(%):"
+                    << selectedInvoice->getDiscountPercentage() << std::endl;
+                std::cout << std::left << std::setw(20) << "Total Amount:"
+                    << selectedInvoice->getTotalAmount() << std::endl;
+                std::cout << std::left << std::setw(20) << "Invoice Date:"
+                    << selectedInvoice->getInvoiceDate().toString() << std::endl;
+                std::cout << std::left << std::setw(20) << "Payment Status:"
+                    << util::getPaymentStatusString(selectedInvoice->getStatus()) << std::endl;
+                std::cout << std::left << std::setw(20) << "Payment Mode:"
+                    << util::getPaymentModeString(selectedInvoice->getPaymentMethod()) << std::endl;
+                auto inventoryItemsInInvoice = selectedInvoice->getParts();
+                if (inventoryItemsInInvoice.isEmpty())
+                {
+                    std::cout << "No inventory items used.\n\n";
+                    continue;
+                }
                 std::cout << "\nItems Used:\n";
                 std::cout << std::left
                     << std::setw(20) << "ItemName"
@@ -453,14 +555,53 @@ inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserIn
                         << std::setw(10) << currentItem->getPrice()
                         << std::endl;
                 }
-}
+                std::cout << "\n\nDo you want to display another Invoice (1-Yes, 2-No): ";
+                util::read(choice);
+                if (choice == 1)
+                {
+                    doRun = true;
+                    util::clear();
+                }
+                else if (choice == 2)
+                {
+                    doRun = false;
+                }
                 else
                 {
-				throw std::runtime_error("Null invoice encountered while displaying invoices.");
+                    std::cout << "Invalid choice\n";
-				util::pressEnter();
+                    doRun = false;
                 }
             }
+            else
+            {
+                std::cout << "Unable to fetch the selected invoice\n";
+                doRun = false;
             }
+
+        } while (doRun);
+    }
+}
+
+/*
+Function: filterStartedJobCards
+Description: Filters the given list of job cards and returns only those with status STARTED.
+Parameters:
+    - assignedJobCards: Map of job card IDs to JobCard pointers.
+Returns:
+    - util::Map<std::string, const JobCard*> containing only job cards with status STARTED.
+*/
+inline util::Map<std::string, const JobCard*> filterStartedJobCards(util::Map<std::string, const JobCard*>& assignedJobCards)
+{
+    util::Map<std::string, const JobCard*> startedJobCards;
+    for (int iterator = 0; iterator  < assignedJobCards.getSize(); iterator++)
+    {
+        const JobCard* currentJobCard = assignedJobCards.getValueAt(iterator);
+        if (currentJobCard && currentJobCard->getStatus() == util::ServiceJobStatus::STARTED)
+        {
+            startedJobCards.insert(currentJobCard->getId(), currentJobCard);
+        }
+    }
+    return startedJobCards;
 }
 
 /*
@@ -472,11 +613,17 @@ Parameters:
 Returns:
 	- std::string: ID of the selected job card, or empty string if none selected
 */
-inline std::string selectJobCardToComplete(util::Map<std::string, const JobCard*>& assignedJobCards, util::Map<int, const JobCard*>& incompleteJobCards)
+inline std::string selectJobCardToComplete(util::Map<std::string, const JobCard*>& assignedJobCards)
+{
+    util::Map<int, const JobCard* > incompleteJobCards;
+    if (assignedJobCards.getSize() == 0)
     {
+        std::cout << "No started jobs available to complete.\n";
+        return "";
+    }
     int currentIndex = 1;
     int choice;
-	bool hasIncompleteJobCard = false;
+    std::cout << std::endl;
     std::cout << std::left
         << std::setw(6) << "Index"
         << std::setw(12) << "BookingID"
@@ -495,14 +642,8 @@ inline std::string selectJobCardToComplete(util::Map<std::string, const JobCard*
                 << std::setw(20) << currentJobCard->getService()->getName()
                 << std::setw(12) << currentJobCard->getServiceId()
                 << std::endl;
-			hasIncompleteJobCard = true;
             incompleteJobCards.insert(currentIndex++, currentJobCard);
         }
-    }
-	if (!hasIncompleteJobCard)
-    {
-		std::cout << "No pending jobs are present.\n";
-		return "";
     }
     std::cout << "Select the Job Card to complete (Index): ";
     util::read(choice);
@@ -515,6 +656,7 @@ inline std::string selectJobCardToComplete(util::Map<std::string, const JobCard*
     else
     {
         std::cout << "Invalid index.\n";
+        std::cout << "Failed to complete jobs.\n\n";
         return "";
     }
 }
@@ -531,9 +673,9 @@ inline const Notification* selectNotification(const util::Vector<const Notificat
 {
     util::Map<int, const Notification*> indexedNotifications;
     std::cout << std::left
-        << std::setw(6) << "Index"
+        << std::setw(10) << "Index"
         << std::setw(15) << "ID"
-        << std::setw(30) << "Title"
+        << std::setw(35) << "Title"
         << std::setw(25) << "Timestamp"
         << std::endl;
     int currentIndex = 1;
@@ -543,9 +685,9 @@ inline const Notification* selectNotification(const util::Vector<const Notificat
         if (currentNotification)
         {
             std::cout << std::left
-                << std::setw(6) << currentIndex
+                << std::setw(10) << currentIndex
                 << std::setw(15) << currentNotification->getId()
-                << std::setw(35) << currentNotification->getTitle()
+                << std::setw(35) << util::truncateString(currentNotification->getTitle(), 30)
                 << std::setw(25) << currentNotification->getCreatedAt().toString()
                 << std::endl;
             indexedNotifications.insert(currentIndex, currentNotification);
@@ -720,6 +862,28 @@ inline void displayAllActiveUsers(util::Map<std::string, const User*>& activeUse
     }
 }
 
+/*
+Function: filterActiveServices
+Description: Filters the given list of services and returns only those that are active.
+Parameters:
+    - serviceList: Map of service IDs to Service pointers.
+Returns:
+    - util::Map<std::string, const Service*> containing only active services.
+*/
+inline util::Map<std::string, const Service*> filterActiveServices(util::Map<std::string, const Service*>& serviceList)
+{
+    util::Map<std::string, const Service*> activeServices;
+    for (int iterator = 0; iterator < serviceList.getSize(); iterator++)
+    {
+        const Service* currentService = serviceList.getValueAt(iterator);
+        if (currentService && currentService->getState() == util::State::ACTIVE)
+        {
+            activeServices.insert(currentService->getId(), currentService);
+        }
+    }
+    return activeServices;
+}
+
 /*
 Function: selectServiceFromServices
 Description: Displays active services and allows the customer to select one by index.
@@ -728,6 +892,12 @@ Return type: const Service* - selected service
 */
 inline const Service* selectServiceFromServices(const util::Map<std::string, const Service*>& services)
 {
+    if (services.getSize() == 0)
+    {
+        std::cout << "No active services available." << std::endl;
+        return nullptr;
+    }
+    std::cout << std::endl;
     util::Map<int, const Service*> activeServicesMap;
     int currentIndex = 1;
     int userInputIndex;
@@ -774,6 +944,31 @@ inline const Service* selectServiceFromServices(const util::Map<std::string, con
     return activeServicesMap[userInputIndex];
 }
 
+/*
+Function: filterComboPackages
+Description:
+    Filters the given list of combo packages and returns only those that are ACTIVE.
+Parameters:
+    - comboPackages: util::Map<std::string, const ComboPackage*>&
+      Map of combo package IDs to ComboPackage pointers.
+Returns:
+    - util::Map<std::string, const ComboPackage*>
+      Map containing only active combo packages.
+*/
+inline util::Map<std::string, const ComboPackage*> filterComboPackages(util::Map<std::string, const ComboPackage*>& comboPackages)
+{
+    util::Map<std::string, const ComboPackage*> activeComboPackages;
+    for (int iterator = 0; iterator < comboPackages.getSize(); iterator++)
+    {
+        const ComboPackage* currentComboPackage = comboPackages.getValueAt(iterator);
+        if (currentComboPackage && currentComboPackage->getState() == util::State::ACTIVE)
+        {
+            activeComboPackages.insert(currentComboPackage->getId(), currentComboPackage);
+        }
+    }
+    return activeComboPackages;
+}
+
 /*
 Function: selectComboPackageFromPackages
 Description: Displays active combo packages and allows the customer to select one by index.
@@ -785,10 +980,11 @@ inline const ComboPackage* selectComboPackageFromPackages(const util::Map<std::s
     util::Map<int, const ComboPackage*> activeComboPackages;
     int currentIndex = 1;
     int userInputIndex;
+    std::cout << std::endl;
     std::cout << std::left
         << std::setw(10) << "Index"
         << std::setw(15) << "Combo ID"
-        << std::setw(15) << "Combo Name"
+        << std::setw(35) << "Combo Name"
         << std::setw(15) << "Estimate Cost"
         << std::endl;
     for (int index = 0; index < comboPackages.getSize(); index++)
@@ -802,7 +998,7 @@ inline const ComboPackage* selectComboPackageFromPackages(const util::Map<std::s
         std::cout << std::left
             << std::setw(10) << currentIndex
             << std::setw(15) << currentComboPackage->getId()
-            << std::setw(25) << currentComboPackage->getPackageName()
+            << std::setw(35) << util::truncateString(currentComboPackage->getPackageName(), 30)
             << std::setw(15) << util::calculateComboServiceEstimatedCost(currentComboPackage)
             << std::endl;
         currentIndex++;
@@ -836,7 +1032,7 @@ inline bool getNotificationPreference(const std::string& serviceName)
     while (true)
     {
         util::clear();
-        std::cout << "    Configure Notification Preferences\n";
+        std::cout << "Configure Notification Preferences\n";
         std::cout << "\n" << serviceName << " Notifications\n";
         std::cout << "1. Enable Notifications\n";
         std::cout << "2. Disable Notifications\n";
@@ -908,6 +1104,7 @@ inline void displayInventoryWithItems(util::Map<std::string, const InventoryItem
                 << std::endl;
         }
     }
+    std::cout << std::endl;
 }
 
 /*
@@ -927,7 +1124,7 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     int activeSize = activeItems.getSize();
     if (activeSize == 0)
     {
-        std::cout << "No active items available in Inventory" << std::endl;
+        std::cout << "\nNo active items available in Inventory" << std::endl << std::endl;
         return;
     }
     displayInventoryWithItems(activeItems);
@@ -935,7 +1132,7 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     util::read(itemIndex);
     if (itemIndex < 1 || itemIndex > activeSize)
     {
-        std::cout << "Invalid index selected." << std::endl;
+        std::cout << "\nInvalid index selected." << std::endl << std::endl;
         return;
     }
     std::cout << "Enter quantity to add: ";
@@ -950,13 +1147,14 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     {
         std::string selectedItemId = selectedItem->getId();
         m_controller.addInventoryItemStock(selectedItemId, quantity);
-        std::cout << "Updated " << selectedItem->getPartName()
+        std::cout << "\nUpdated " << selectedItem->getPartName()
             << " stock. New quantity: " << selectedItem->getQuantity()
+            << std::endl
             << std::endl;
     }
     else
     {
-        std::cout << "Error: Selected item could not be found." << std::endl;
+        std::cout << "\nError: Selected item could not be found." << std::endl << std::endl;
     }
 }
 
@@ -1004,7 +1202,8 @@ inline std::string selectComboPackage(util::Map<std::string, const ComboPackage*
     util::Map<int, const ComboPackage*> currentComboPackageIndexMap;
     if (currentComboPackages.getSize() == 0)
     {
-        throw std::runtime_error("No combo packages are available.\n");
+        std::cout << "No combo packages are available.\n";
+        return "";
     }
     int currentIndex = 1, choice, selectedIndex;
     for (int iterator = 0; iterator < currentComboPackages.getSize(); iterator++)
@@ -1017,7 +1216,8 @@ inline std::string selectComboPackage(util::Map<std::string, const ComboPackage*
     }
     if (currentComboPackageIndexMap.getSize() == 0)
     {
-        throw std::runtime_error("No combo packages currently active.");
+        std::cout << "No combo packages currently active.\n";
+        return "";
     }
     displayComboPackagesWithIndex(currentComboPackageIndexMap);
     std::cout << "Enter your choice(Index): ";

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

@@ -6,6 +6,7 @@ Description: Implementation file containing the method definitions of the
 Author: Trenser
 Date:19-May-2026
 */
+
 #include "Enums.h"
 #include "InputHelper.h"
 #include "JobCard.h"
@@ -92,18 +93,15 @@ Returns:
 */
 void TechnicianMenu::completeJob()
 {
+    util::clear();
+    std::cout << "Complete Job\n";
 	util::Map<std::string, const JobCard*> assignedJobCards = m_controller.getJobCardsByUser();
-	util::Map<int, const JobCard*> incompleteJobCards;
+    util::Map<std::string, const JobCard*> startedJobCards = filterStartedJobCards(assignedJobCards);
-	std::cout << "Jobs to be completed.\n";
+	std::string selectedJobID = selectJobCardToComplete(startedJobCards);
-	std::string selectedJobID = selectJobCardToComplete(assignedJobCards, incompleteJobCards);
+    if (!selectedJobID.empty())
-	if (selectedJobID == "")
-	{
-		std::cout << "Failed to complete the job.\n";
-	}
-	else
 	{
 		m_controller.completeJob(selectedJobID);
-		std::cout << "Job marked as completed.\n";
+		std::cout << "\nJob marked as completed.\n\n";
 	}
     util::pressEnter();
 }

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

@@ -7,6 +7,8 @@ Author: Trenser
 Date:19-May-2026
 */
 
+#include <iostream>
+#include <stdexcept>
 #include "Enums.h"
 #include "InputHelper.h"
 #include "OutputHelper.h"
@@ -23,6 +25,8 @@ Return type: void
 */
 void UserInterface::run()
 {
+	try
+	{
 		m_controller.loadSystemData();
 		m_controller.runSystemChecks();
 		bool isMenuActive = true;
@@ -46,6 +50,19 @@ void UserInterface::run()
 			}
 		}
 		m_controller.saveSystemData();
+	}
+	catch (const std::invalid_argument& exception)
+	{
+		std::cout << "Exception: Invalid Argument: " << exception.what() << std::endl;
+	}
+	catch (const std::exception& exception)
+	{
+		std::cout << "Exception: " << exception.what() << std::endl;
+	}
+	catch (...)
+	{
+		std::cout << "Unknown error occurred." << std::endl;
+	}
 }
 
 /*