Implement review fixes

Changes:

- Updated ServiceManagementService::createJobCard() to prevent duplicate
  "Technician assigned" notifications when multiple job cards exist for
  the same booking.
- Refined job card creation notification to include Job Card ID, Service
  ID, and Booking ID for clearer technician communication.
- Corrected service booking cancellation notification formatting by
  standardizing capitalization and improving message clarity.
- Improved service booking completion notification to explicitly mention
  the booking ID and confirm invoice generation.
- Ensured consistent notification titles and messages across the
  workflow for better user understanding.

Fixes #2114

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/datastores/DataStore.cpp

@@ -358,7 +358,7 @@ util::Map<std::string, TrackedRecord<ServiceBooking>>& DataStore::getServiceBook
             {
                 throw std::runtime_error("Invalid service index.");
             }
-            auto& currentService = services.getValueAt(serviceIndex);
+            auto currentService = services.getValueAt(serviceIndex);
             servicesInBooking[currentServiceId] = currentService.data;
         }
         serviceBooking->setServices(servicesInBooking);
@@ -369,7 +369,7 @@ util::Map<std::string, TrackedRecord<ServiceBooking>>& DataStore::getServiceBook
             {
                 throw std::runtime_error("Invalid user index.");
             }
-            auto& customer = users.getValueAt(userIndex);
+            auto customer = users.getValueAt(userIndex);
             serviceBooking->setCustomer(customer.data);
         }
         if (!serviceBooking->getAssignedTechnicianId().empty())
@@ -379,7 +379,7 @@ util::Map<std::string, TrackedRecord<ServiceBooking>>& DataStore::getServiceBook
             {
                 throw std::runtime_error("Invalid technician index.");
             }
-            auto& technician = users.getValueAt(technicianIndex);
+            auto technician = users.getValueAt(technicianIndex);
             serviceBooking->setAssignedTechnician(technician.data);
         }
     }
@@ -423,7 +423,7 @@ util::Map<std::string, TrackedRecord<JobCard>>& DataStore::getJobCards()
         {
             throw std::runtime_error("Invalid service ID: " + serviceId);
         }
-        auto& trackedService = services.getValueAt(serviceIndex);
+        auto trackedService = services.getValueAt(serviceIndex);
         jobCard->setService(trackedService.data);
         const std::string& technicianId = jobCard->getTechnicianId();
         if (!technicianId.empty())
@@ -433,7 +433,7 @@ util::Map<std::string, TrackedRecord<JobCard>>& DataStore::getJobCards()
             {
                 throw std::runtime_error("Invalid technician ID: " + technicianId);
             }
-            auto& trackedTechnician = users.getValueAt(technicianIndex);
+            auto trackedTechnician = users.getValueAt(technicianIndex);
             jobCard->setTechnician(trackedTechnician.data);
         }
     }
@@ -691,7 +691,7 @@ void DataStore::saveObservers(MappingInfo& mapping, util::Map<std::string, User*
     SharedMemory::setRecordCount(mapping, observerCount);
     for (size_t index = 0; index < observerCount; index++)
     {
-        SerializedObserver serializedObserver{};
+        SerializedObserver serializedObserver;
         User* user = observers.getValueAt(static_cast<int>(index));
         strcpy_s(serializedObserver.id, sizeof(serializedObserver.id), user->getId().c_str());
         SerializedObserver* destination = static_cast<SerializedObserver*>(SharedMemory::getRecordAddress(mapping, index));

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

@@ -629,6 +629,7 @@ void ServiceManagementService::createJobCard(const std::string& bookingID, const
     DataStoreLockGuard lock(m_dataStore);
 	UserManagementService m_userManagementService;
 	ServiceBooking* currentBooking = getServiceBooking(bookingID);
+    std::string title, message;
     if (currentBooking == nullptr)
     {
         throw std::runtime_error("Service Booking not available");
@@ -684,18 +685,30 @@ void ServiceManagementService::createJobCard(const std::string& bookingID, const
             trackedCurrentInventoryItem.state = RecordState::MODIFIED;
 		}
 	}
-	currentBooking->setAssignedTechnician(selectedTechnician);
-	currentBooking->setAssignedTechnicianId(selectedTechnician->getId());
+    const User* currentAssignedTechnician = currentBooking->getAssignedTechnician();
+    const std::string& currentAssignedTechnicianId = currentBooking->getAssignedTechnicianId();
+    if (!currentAssignedTechnician && currentAssignedTechnicianId.empty())
+    {
+        currentBooking->setAssignedTechnician(selectedTechnician);
+        currentBooking->setAssignedTechnicianId(selectedTechnician->getId());
+        title = "Technician assigned";
+        message = "A technician has been assigned to your Service Booking with ID " + bookingID;
+        sendNotification(currentBooking->getCustomer(), title, message);
+    }
+
     if (currentBooking->getStatus() == util::ServiceJobStatus::PENDING)
     {
         currentBooking->setStatus(util::ServiceJobStatus::STARTED);
     }
     currentTrackedServiceBooking.state = RecordState::MODIFIED;
-	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());
 	if (jobCard)
 	{
+        title = "Job Card Assigned";
+        message = "A new Job Card (ID: " + jobCard->getId() +
+            ") has been created for Service " + serviceID +
+            " in Booking " + bookingID +
+            ". You have been assigned to this job.";
 		currentTrackedJobCards.insert(jobCard->getId(), util::createNewRecord(jobCard));
 		sendNotification(selectedTechnician, title, message);
 	}
@@ -703,9 +716,6 @@ 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);
     m_dataStore.saveJobCards();
     m_dataStore.saveServiceBookings();
     m_dataStore.saveInventoryItems();
@@ -852,8 +862,8 @@ void ServiceManagementService::removeServiceBooking(const std::string& bookingID
         {
             if (currentServiceBooking->getStatus() == util::ServiceJobStatus::PENDING)
             {
-                const std::string title = "Service Booking cancelled.";
-                const std::string message = "Service Booking of id " + bookingID + " successfully cancelled.";
+                const std::string title = "Service Booking Cancelled";
+                const std::string message = "Service Booking (ID: " + bookingID + ") has been successfully cancelled";
                 currentServiceBooking->setStatus(util::ServiceJobStatus::CANCELLED);
                 currentTrackedServiceBooking.state = RecordState::MODIFIED;
                 serviceBookingRemoved = true;
@@ -1025,8 +1035,8 @@ void ServiceManagementService::updateJobStatus(const std::string& jobID)
                 currentJob->getBooking()->setStatus(util::ServiceJobStatus::COMPLETED);
                 trackedServiceBookings.getValueAt(trackedServiceBookings.find(bookingId)).state = RecordState::MODIFIED;
                 paymentManagementService.generateInvoice(currentJob->getBooking());
-                std::string title = "Service Booking completed. Invoice Generated.";
-                std::string message = "Services completed for the booking and invoice generated.";
+                std::string title = "Service Booking Completed";
+                std::string message = "Service Booking (ID: " + bookingId + ") has been completed successfully. An invoice has been generated.";
                 sendNotification(currentJob->getBooking()->getCustomer(), title, message);
             }
         }

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/Menu.cpp

@@ -67,7 +67,7 @@ Return type: void
 */
 void Menu::eventListenerLoop()
 {
-    HANDLE handles[3] = { NULL, NULL, NULL };
+    HANDLE handles[3];
     handles[0] = m_accountDisabledEvent;
     handles[1] = m_notificationAvailableEvent;
     handles[2] = m_shutdownEvent;

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

@@ -588,7 +588,7 @@ inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserIn
                     << 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();
+                auto inventoryItemsInInvoice = selectedInvoice->getParts();
                 if (inventoryItemsInInvoice.isEmpty())
                 {
                     std::cout << "No inventory items used.\n\n";
@@ -597,6 +597,7 @@ inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserIn
                 std::cout << "\nItems Used:\n";
                 std::cout << std::left
                     << std::setw(20) << "ItemName"
+                    << std::setw(10) << "Quantity"
                     << std::setw(10) << "Price"
                     << std::endl;
                 std::cout << std::string(40, '-') << std::endl;
@@ -605,6 +606,7 @@ inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserIn
                     InventoryItem* currentItem = inventoryItemsInInvoice.getValueAt(iterator);
                     std::cout << std::left
                         << std::setw(20) << currentItem->getPartName()
+                        << std::setw(10) << currentItem->getQuantity()
                         << std::setw(10) << currentItem->getPrice()
                         << std::endl;
                 }
@@ -1144,18 +1146,15 @@ inline void displayAllComboPackages(util::Map<std::string, const ComboPackage*>
     for (int index = 0; index < comboPackages.getSize(); index++)
     {
         const ComboPackage* currentComboPackage = comboPackages.getValueAt(index);
-        if (currentComboPackage) 
+        if (currentComboPackage && currentComboPackage->getState() != util::State::ACTIVE)
         {
-            if (currentComboPackage->getState() != util::State::ACTIVE)
-            {
-                continue;
-            }
-            std::cout << std::left
-                << std::setw(15) << currentComboPackage->getId()
-                << std::setw(35) << util::truncateString(currentComboPackage->getPackageName(), 30)
-                << std::setw(15) << util::calculateComboServiceEstimatedCost(currentComboPackage)
-                << std::endl;
+            continue;
         }
+        std::cout << std::left
+            << std::setw(15) << currentComboPackage->getId()
+            << std::setw(35) << util::truncateString(currentComboPackage->getPackageName(), 30)
+            << std::setw(15) << util::calculateComboServiceEstimatedCost(currentComboPackage)
+            << std::endl;
     }
 }
 
@@ -1181,21 +1180,18 @@ inline const ComboPackage* selectComboPackageFromPackages(const util::Map<std::s
     for (int index = 0; index < comboPackages.getSize(); index++)
     {
         const ComboPackage* currentComboPackage = comboPackages.getValueAt(index);
-        if (currentComboPackage)
+        if (currentComboPackage && currentComboPackage->getState() != util::State::ACTIVE)
         {
-            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(35) << util::truncateString(currentComboPackage->getPackageName(), 30)
-                << std::setw(15) << util::calculateComboServiceEstimatedCost(currentComboPackage)
-                << std::endl;
-            currentIndex++;
+            continue;
         }
+        activeComboPackages.insert(currentIndex, currentComboPackage);
+        std::cout << std::left
+            << std::setw(10) << currentIndex
+            << std::setw(15) << currentComboPackage->getId()
+            << std::setw(35) << util::truncateString(currentComboPackage->getPackageName(), 30)
+            << std::setw(15) << util::calculateComboServiceEstimatedCost(currentComboPackage)
+            << std::endl;
+        currentIndex++;
     }
     if (activeComboPackages.getSize() == 0)
     {