Merge branch 'develop' into feature

Related work items: #939, #943, #946, #947, #948, #949, #951, #952, #953, #954, #955, #956, #957

.gitignore

@@ -426,3 +426,6 @@ FodyWeavers.xsd
 *.msix
 *.msm
 *.msp
+
+# CSV Files
+*.csv

Trenser.FileManager/Trenser.FileManager/FileIO.cpp

@@ -0,0 +1,27 @@
+#include "pch.h"
+#include "FileIO.h"
+
+std::vector<std::string> FileIO::readAllLines(const std::string& path)
+{
+    std::ifstream file(path);
+    if (!file.is_open())
+    {
+        std::ofstream newFile(path);
+        newFile.close();
+        file.open(path);
+    }    std::vector<std::string> lines;
+    std::string line;
+    while (std::getline(file, line))
+        lines.push_back(line);
+    return lines;
+}
+
+void FileIO::writeAllLines(const std::string& path,
+    const std::vector<std::string>& lines)
+{
+    std::ofstream file(path, std::ios::trunc);
+    if (!file.is_open())
+        throw std::runtime_error("Failed to open file " + path);
+    for (const auto& line : lines)
+        file << line << '\n';
+}

Trenser.FileManager/Trenser.FileManager/FileIO.h

@@ -0,0 +1,18 @@
+#pragma once
+#include<memory>
+#include<vector>
+#include<fstream>
+#include<string>
+#include<stdexcept>
+
+#ifdef TRENSERFILEMANAGER_EXPORTS
+#define TRENSERFILEMANAGER_API __declspec(dllexport)
+#else
+#define TRENSERFILEMANAGER_API __declspec(dllimport)
+#endif
+
+class TRENSERFILEMANAGER_API FileIO {
+public:
+    static std::vector<std::string> readAllLines(const std::string& path);
+    static void writeAllLines(const std::string& path, const std::vector<std::string>& lines);
+};

Trenser.FileManager/Trenser.FileManager/FileManager.h

@@ -0,0 +1,52 @@
+#pragma once
+#include <stdexcept>
+#include "FileIO.h"
+
+template <typename T> using objects = std::map<std::string, T*>;
+
+template <typename T>
+class FileManager
+{
+private:
+	std::string m_filePath;
+public:
+	FileManager() : m_filePath("") {}
+	FileManager(const std::string& filePath) : m_filePath(filePath) {}
+	objects<T> load();
+	void save(const objects<T>&);
+};
+
+template <typename T>
+objects<T> FileManager<T>::load()
+{
+	objects<T> records;
+	auto lines = FileIO::readAllLines(m_filePath);
+	bool isHeader = true;
+	for (const auto& record : lines)
+	{
+		if (isHeader)
+		{
+			isHeader = false;
+			continue;
+		}
+		auto object = T::deserialize(record);
+		if (!object)
+		{
+			throw std::runtime_error("Failed to deserialize record");
+		}
+		records[object->getId()] = object;
+	}
+	return records;
+}
+
+template <typename T>
+void FileManager<T>::save(const objects<T>& records)
+{
+	std::vector<std::string> lines;
+	lines.push_back(T::getHeaders());
+	for (const auto& recordPair : records)
+	{
+		lines.push_back(recordPair.second->serialize());
+	}
+	FileIO::writeAllLines(m_filePath, lines);
+}

Trenser.FileManager/Trenser.FileManager/Trenser.FileManager.vcxproj

@@ -135,11 +135,14 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="FileIO.h" />
+    <ClInclude Include="FileManager.h" />
     <ClInclude Include="framework.h" />
     <ClInclude Include="pch.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="dllmain.cpp" />
+    <ClCompile Include="FileIO.cpp" />
     <ClCompile Include="pch.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>

Trenser.FileManager/Trenser.FileManager/Trenser.FileManager.vcxproj.filters

@@ -21,6 +21,12 @@
     <ClInclude Include="pch.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="FileManager.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="FileIO.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="dllmain.cpp">
@@ -29,5 +35,8 @@
     <ClCompile Include="pch.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="FileIO.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

Trenser.FileManager/Trenser.FileManager/pch.h

@@ -9,5 +9,10 @@
 
 // add headers that you want to pre-compile here
 #include "framework.h"
+#include<memory>
+#include<vector>
+#include<fstream>
+#include<string>
+#include<stdexcept>
 
 #endif //PCH_H

Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.cpp

@@ -6,7 +6,7 @@
  */
 
 #include "UserInterface.h"
-
+#include "FileManager.h"
 int main()
 {
 	UserInterface userInterFace;

Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.vcxproj

@@ -102,12 +102,17 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
-      <AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)factories;$(ProjectDir)datastores;$(ProjectDir)views;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)models;$(ProjectDir)controllers;$(ProjectDir)services;$(ProjectDir)utilities;$(ProjectDir)factories;$(ProjectDir)datastores;$(ProjectDir)views;%(AdditionalIncludeDirectories);..\..\Trenser.FileManager\Trenser.FileManager</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalLibraryDirectories>..\..\Trenser.FileManager\$(IntDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>Trenser.FileManager.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PostBuildEvent>
+      <Command>xcopy /y /d "..\..\Trenser.FileManager\$(IntDir)Trenser.FileManager.dll" "$(OutDir)"</Command>
+    </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
@@ -117,11 +122,17 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>;..\..\Trenser.FileManager\Trenser.FileManager</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalLibraryDirectories>..\..\Trenser.FileManager\$(IntDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>Trenser.FileManager.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PostBuildEvent>
+      <Command>xcopy /y /d "..\..\Trenser.FileManager\$(IntDir)Trenser.FileManager.dll" "$(OutDir)"</Command>
+    </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="controllers\ZenvyController.cpp" />
@@ -150,7 +161,7 @@
     <ClCompile Include="services\AttendanceManagementService.cpp" />
     <ClCompile Include="services\AuthenticationManagementService.cpp" />
     <ClCompile Include="services\BookingManagementService.cpp" />
-    <ClCompile Include="services\EmployeeManagememtService.cpp" />
+    <ClCompile Include="services\EmployeeManagementService.cpp" />
     <ClCompile Include="services\LeaveManagementService.cpp" />
     <ClCompile Include="services\LogService.cpp" />
     <ClCompile Include="services\NotificationManagementService.cpp" />
@@ -162,9 +173,11 @@
     <ClCompile Include="models\Employee.cpp" />
     <ClCompile Include="models\HRManager.cpp" />
     <ClCompile Include="Trenser.Zenvy.cpp" />
+    <ClCompile Include="utilities\AuthorizationHelper.cpp" />
     <ClCompile Include="utilities\Enums.cpp" />
     <ClCompile Include="utilities\InputHelper.cpp" />
     <ClCompile Include="utilities\OutputHelper.cpp" />
+    <ClCompile Include="utilities\StringHelper.cpp" />
     <ClCompile Include="utilities\Timestamp.cpp" />
     <ClCompile Include="utilities\Validator.cpp" />
     <ClCompile Include="views\AdminMenu.cpp" />
@@ -172,6 +185,7 @@
     <ClCompile Include="views\FinanceExecutiveMenu.cpp" />
     <ClCompile Include="views\HRManagerMenu.cpp" />
     <ClCompile Include="views\ITExecutiveMenu.cpp" />
+    <ClCompile Include="views\MenuHelper.cpp" />
     <ClCompile Include="views\TalentExecutiveMenu.cpp" />
     <ClCompile Include="views\TeamExecutiveMenu.cpp" />
     <ClCompile Include="views\TeamLeadMenu.cpp" />
@@ -204,7 +218,7 @@
     <ClInclude Include="services\AttendanceManagementService.h" />
     <ClInclude Include="services\AuthenticationManagementService.h" />
     <ClInclude Include="services\BookingManagementService.h" />
-    <ClInclude Include="services\EmployeeManagememtService.h" />
+    <ClInclude Include="services\EmployeeManagementService.h" />
     <ClInclude Include="services\LeaveManagementService.h" />
     <ClInclude Include="services\LogService.h" />
     <ClInclude Include="services\NotificationManagementService.h" />
@@ -212,9 +226,11 @@
     <ClInclude Include="services\TalentAcquisitionManagementService.h" />
     <ClInclude Include="services\TeamManagementService.h" />
     <ClInclude Include="services\TicketManagementService.h" />
+    <ClInclude Include="utilities\AuthorizationHelper.h" />
     <ClInclude Include="utilities\Enums.h" />
     <ClInclude Include="utilities\InputHelper.h" />
     <ClInclude Include="utilities\OutputHelper.h" />
+    <ClInclude Include="utilities\StringHelper.h" />
     <ClInclude Include="utilities\Timestamp.h" />
     <ClInclude Include="utilities\Validator.h" />
     <ClInclude Include="views\AdminMenu.h" />
@@ -222,6 +238,7 @@
     <ClInclude Include="views\FinanceExecutiveMenu.h" />
     <ClInclude Include="views\HRManagerMenu.h" />
     <ClInclude Include="views\ITExecutiveMenu.h" />
+    <ClInclude Include="views\MenuHelper.h" />
     <ClInclude Include="views\TalentExecutiveMenu.h" />
     <ClInclude Include="views\TeamExecutiveMenu.h" />
     <ClInclude Include="views\TeamLeadMenu.h" />

Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.vcxproj.filters

@@ -39,9 +39,6 @@
     <ClCompile Include="services\AuthenticationManagementService.cpp">
       <Filter>Services</Filter>
     </ClCompile>
-    <ClCompile Include="services\EmployeeManagememtService.cpp">
-      <Filter>Services</Filter>
-    </ClCompile>
     <ClCompile Include="services\AttendanceManagementService.cpp">
       <Filter>Services</Filter>
     </ClCompile>
@@ -192,14 +189,23 @@
     <ClCompile Include="services\ApplicationConfig.cpp">
       <Filter>Services</Filter>
     </ClCompile>
+    <ClCompile Include="services\EmployeeManagementService.cpp">
+      <Filter>Services</Filter>
+    </ClCompile>
+    <ClCompile Include="views\MenuHelper.cpp">
+      <Filter>Views</Filter>
+    </ClCompile>
+    <ClCompile Include="utilities\AuthorizationHelper.cpp">
+      <Filter>Services</Filter>
+    </ClCompile>
+    <ClCompile Include="utilities\StringHelper.cpp">
+      <Filter>Utilities</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="services\AuthenticationManagementService.h">
       <Filter>Services</Filter>
     </ClInclude>
-    <ClInclude Include="services\EmployeeManagememtService.h">
-      <Filter>Services</Filter>
-    </ClInclude>
     <ClInclude Include="services\TicketManagementService.h">
       <Filter>Services</Filter>
     </ClInclude>
@@ -338,6 +344,18 @@
     <ClInclude Include="services\ApplicationConfig.h">
       <Filter>Services</Filter>
     </ClInclude>
+    <ClInclude Include="services\EmployeeManagementService.h">
+      <Filter>Services</Filter>
+    </ClInclude>
+    <ClInclude Include="views\MenuHelper.h">
+      <Filter>Views</Filter>
+    </ClInclude>
+    <ClInclude Include="utilities\AuthorizationHelper.h">
+      <Filter>Services</Filter>
+    </ClInclude>
+    <ClInclude Include="utilities\StringHelper.h">
+      <Filter>Utilities</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="models\Employee.h">

Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.cpp

@@ -1,17 +1,245 @@
+/*
+ * File: ZenvyController.cpp
+ * Description : Controls data flow between UI and Service Layers.
+ * Author: Trenser
+ * Created : 01-Apr-2026
+ */
 #include "ZenvyController.h"
 
-//Authentication
+/*
+ * Function: login
+ * Description: authenticates the employee based on email and password
+ * Parameters:
+ *    email - email of the employee
+ *    password - password of the employee
+ * Returns:
+ *    Tuple - login status, employee type, employee designation
+ *    login status - success or failed
+ *    employee type - type of the employee logged in
+ *    employee designation - designation if employee type is GENERAL.
+ */
 AuthenticationDTO ZenvyController::login(const std::string& email, const std::string& password)
 {
     return m_authenticationManagementService->login(email, password);
 }
 
+/*
+ * Function: logout
+ * Description: logs out the currently authenticated employee
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value
+ */
 void ZenvyController::logout()
 {
     m_authenticationManagementService->logout();
 }
 
+/*
+ * Function: changePassword
+ * Description: updates the password of the currently authenticated employee
+ * Parameters:
+ *    password - the new password to be set for the employee
+ * Returns:
+ *    void - no return value
+ */
 void ZenvyController::changePassword(const std::string& password)
 {
     m_authenticationManagementService->changePassword(password);
 }
+
+/*
+ * Function: createEmployee
+ * Description: creates a new employee with the given details
+ * Parameters:
+ *    employeeType - type of employee to be created
+ *    employeeDesignation - designation of the employee
+ *    email - email address of the employee
+ *    name - name of the employee
+ *    phone - phone number of the employee
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::createEmployee(Enums::EmployeeType employeeType, Enums::EmployeeDesignation employeeDesignation, const std::string& email, const std::string& name, const std::string& phone) const
+{
+    m_employeeManagementService->createEmployee(employeeType, employeeDesignation, email, name, phone);
+}
+
+/*
+ * Function: deactivateEmployee
+ * Description: deactivates an employee based on employee ID
+ * Parameters:
+ *    id - unique employee ID
+ * Returns:
+ *    bool - true if deactivated successfully, false otherwise
+ */
+bool ZenvyController::deactivateEmployee(const std::string& id) const
+{
+    return m_employeeManagementService->deactivateEmployee(id);
+}
+
+/*
+ * Function: updateProfile
+ * Description: updates the profile of the currently authenticated employee
+ * Parameters:
+ *    name - updated name of the employee
+ *    phone - updated phone number
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::updateProfile(const std::string& name, const std::string& phone)
+{
+    m_employeeManagementService->updateProfile(name, phone);
+}
+
+/*
+ * Function: searchEmployee
+ * Description: searches employees based on name
+ * Parameters:
+ *    name - name or partial name of the employee
+ * Returns:
+ *    Pair of employee type and list of matching employees
+ */
+std::pair<Enums::EmployeeType, std::vector<const Employee*>> ZenvyController::searchEmployee(const std::string& name)
+{
+    return m_employeeManagementService->searchEmployee(name);
+}
+
+/*
+ * Function: getCurrentEmployee
+ * Description: retrieves the currently authenticated employee
+ * Parameters:
+ *    None
+ * Returns:
+ *    Pointer to the authenticated employee
+ */
+const Employee* ZenvyController::getCurrentEmployee() const
+{
+    return m_employeeManagementService->getCurrentEmployee();
+}
+
+/*
+ * Function: updateDesignation
+ * Description: updates the designation of an employee
+ * Parameters:
+ *    id - unique employee ID
+ *    designation - new designation to be assigned
+ * Returns:
+ *    bool - true if update is successful, false otherwise
+ */
+bool ZenvyController::updateDesignation(const std::string& id, Enums::EmployeeDesignation designation)
+{
+    return m_employeeManagementService->updateDesignation(id, designation);
+}
+
+/*
+ * Function: getShorlistedCandidates
+ * Description: retrieves the list of shortlisted candidates
+ * Parameters:
+ *    None
+ * Returns:
+ *    Vector of shortlisted candidate pointers
+ */
+std::vector<Candidate*> ZenvyController::getShorlistedCandidates() const
+{
+    return m_employeeManagementService->getShorlistedCandidates();
+}
+
+/*
+ * Function: updateSalary
+ * Description: updates salary details of an employee
+ * Parameters:
+ *    employeeId - unique employee ID
+ *    basicSalary - basic salary amount
+ *    houseRentAllowance - HRA amount
+ *    foodAllowance - food allowance amount
+ *    employeePFContribution - employee PF contribution
+ *    employerPFContribution - employer PF contribution
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::updateSalary(const std::string& employeeId, double basicSalary, double houseRentAllowance, double foodAllowance, double employeePFContribution, double employerPFContribution)
+{
+    m_payslipManagementService->updateSalary(employeeId, basicSalary, houseRentAllowance, foodAllowance, employeePFContribution, employerPFContribution);
+}
+
+/*
+ * Function: generatePayslips
+ * Description: generates payslips for all eligible employees
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::generatePayslips()
+{
+    m_payslipManagementService->generatePayslips();
+}
+
+/*
+ * Function: loadStates
+ * Description: loads persisted application data into memory
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::loadStates()
+{
+    m_employeeManagementService->loadEmployees();
+    m_payslipManagementService->loadPayrolls();
+    m_payslipManagementService->loadPayslips();
+}
+
+/*
+ * Function: persistStates
+ * Description: saves current application data to storage
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value
+ */
+void ZenvyController::persistStates()
+{
+    m_employeeManagementService->saveEmployees();
+    m_payslipManagementService->savePayrolls();
+    m_payslipManagementService->savePayslips();
+}
+
+/*
+ * Function: getPayslipForMonth
+ * Description: retrieves payroll and payslip details for a specific month
+ * Parameters:
+ *    employeeId - unique employee ID
+ *    year - year of the payslip
+ *    month - month of the payslip
+ * Returns:
+ *    Pair of payroll and payslip pointers
+ */
+std::pair<Payroll*, Payslip*> ZenvyController::getPayslipForMonth(const std::string& employeeId, int year, int month)
+{
+    return m_payslipManagementService->getPayslipForMonth(employeeId, year, month);
+}
+
+/*
+ * Function: ~ZenvyController
+ * Description: cleans up dynamically allocated service objects
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value
+ */
+ZenvyController::~ZenvyController()
+{
+    delete m_authenticationManagementService;
+    delete m_attendanceManagementService;
+    delete m_bookingManagementService;
+    delete m_employeeManagementService;
+    delete m_leaveManagementService;
+    delete m_notificationManagementService;
+    delete m_payslipManagementService;
+    delete m_talentAcquisitionManagementService;
+    delete m_teamManagementService;
+    delete m_ticketManagementService;
+}

Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.h

@@ -1,10 +1,16 @@
+/*
+ * File: ZenvyController.h
+ * Description : Controls data flow between UI and Service Layers.
+ * Author: Trenser
+ * Created : 01-Apr-2026
+ */
+
 #pragma once
-#include <memory>
 #include <utility>
 #include "AuthenticationManagementService.h"
 #include "AttendanceManagementService.h"
 #include "BookingManagementService.h"
-#include "EmployeeManagememtService.h"
+#include "EmployeeManagementService.h"
 #include "LeaveManagementService.h"
 #include "NotificationManagementService.h"
 #include "PayslipManagementService.h"
@@ -16,31 +22,56 @@
 class ZenvyController
 {
 private:
-	std::shared_ptr<AuthenticationManagementService> m_authenticationManagementService;
-	std::shared_ptr<AttendanceManagementService> m_attendanceManagementService;
-	std::shared_ptr<BookingManagementService> m_bookingManagementService;
-	std::shared_ptr<EmployeeManagememtService> m_employeeManagememtService;
-	std::shared_ptr<LeaveManagementService> m_leaveManagementService;
-	std::shared_ptr<NotificationManagementService> m_notificationManagementService;
-	std::shared_ptr<PayslipManagementService> m_payslipManagementService;
-	std::shared_ptr<TalentAcquisitionManagementService> m_talentAcquisitionManagementService;
-	std::shared_ptr<TeamManagementService> m_teamManagementService;
-	std::shared_ptr<TicketManagementService> m_ticketManagementService;
+    AuthenticationManagementService* m_authenticationManagementService;
+    AttendanceManagementService* m_attendanceManagementService;
+    BookingManagementService* m_bookingManagementService;
+    EmployeeManagementService* m_employeeManagementService;
+    LeaveManagementService* m_leaveManagementService;
+    NotificationManagementService* m_notificationManagementService;
+    PayslipManagementService* m_payslipManagementService;
+    TalentAcquisitionManagementService* m_talentAcquisitionManagementService;
+    TeamManagementService* m_teamManagementService;
+    TicketManagementService* m_ticketManagementService;
 public:
     ZenvyController() :
-		m_authenticationManagementService(std::make_shared<AuthenticationManagementService>()), 
-		m_attendanceManagementService(std::make_shared<AttendanceManagementService>()), 
-		m_bookingManagementService(std::make_shared<BookingManagementService>()),
-		m_employeeManagememtService(std::make_shared<EmployeeManagememtService>()),
-		m_leaveManagementService(std::make_shared<LeaveManagementService>()),
-		m_notificationManagementService(std::make_shared<NotificationManagementService>()),
-		m_payslipManagementService(std::make_shared<PayslipManagementService>()),
-		m_talentAcquisitionManagementService(std::make_shared<TalentAcquisitionManagementService>()),
-		m_teamManagementService(std::make_shared<TeamManagementService>()),
-		m_ticketManagementService(std::make_shared<TicketManagementService>()) {};
+        m_authenticationManagementService(new AuthenticationManagementService()),
+        m_attendanceManagementService(new AttendanceManagementService()),
+        m_bookingManagementService(new BookingManagementService()),
+        m_employeeManagementService(new EmployeeManagementService()),
+        m_leaveManagementService(new LeaveManagementService()),
+        m_notificationManagementService(new NotificationManagementService()),
+        m_payslipManagementService(new PayslipManagementService()),
+        m_talentAcquisitionManagementService(new TalentAcquisitionManagementService()),
+        m_teamManagementService(new TeamManagementService()),
+        m_ticketManagementService(new TicketManagementService()) {};
+    ~ZenvyController();
 
     //Authentication
     AuthenticationDTO login(const std::string& email, const std::string& password);
     void logout();
     void changePassword(const std::string&);
+
+    //Employee Management
+    void createEmployee(Enums::EmployeeType, Enums::EmployeeDesignation, const std::string&, const std::string&, const std::string&) const;
+    bool deactivateEmployee(const std::string&) const;
+    const Employee* getCurrentEmployee() const;
+    void updateProfile(const std::string&, const std::string&);
+    std::pair<Enums::EmployeeType, std::vector<const Employee*>> searchEmployee(const std::string&);
+    bool updateDesignation(const std::string&, Enums::EmployeeDesignation);
+    std::vector<Candidate*> getShorlistedCandidates() const;
+
+    template <typename ...Types>
+    Employees getEmployees(Types ...types) const
+    {
+        return m_employeeManagementService->getEmployees(types...);
+    }
+
+    //Payslip management
+    void updateSalary(const std::string&, double, double, double, double, double);
+    void generatePayslips();
+    std::pair<Payroll*, Payslip*>getPayslipForMonth(const std::string&, int, int);
+
+    //File Management
+    void loadStates();
+    void persistStates();
 };

Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.cpp

@@ -1,33 +1,152 @@
-#include "DataStore.h"
+/*
+ * File: DataStore.cpp
+ * Description: Central Storage for all the System Data.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
 
+#include "DataStore.h"
+#include "EmployeeManagementService.h"
+
+ /*
+  * Function: getInstance
+  * Description: provides a singleton instance of the DataStore.
+  * Parameters:
+  *    None
+  * Returns:
+  *    DataStore& - reference to the single DataStore object.
+  */
 DataStore& DataStore::getInstance()
 {
     static DataStore dataStore;
     return dataStore;
 }
 
+/*
+ * Function: getLogs
+ * Description: retrieves the log map containing system logs.
+ * Parameters:
+ *    None
+ * Returns:
+ *    logMap& - reference to the log map.
+ */
 logMap& DataStore::getLogs()
 {
     return m_logs;
 }
 
-std::shared_ptr<Employee>& DataStore::getAuthenticatedEmployee()
+/*
+ * Function: getAuthenticatedEmployee
+ * Description: retrieves the currently authenticated employee.
+ * Parameters:
+ *    None
+ * Returns:
+ *    Employee*& - reference to the authenticated employee pointer.
+ */
+Employee*& DataStore::getAuthenticatedEmployee()
 {
     return m_authenticatedEmployee;
 }
 
-void DataStore::setAuthenticatedEmployee(std::shared_ptr<Employee> authenticatedEmployee)
+/*
+ * Function: setAuthenticatedEmployee
+ * Description: sets the currently authenticated employee.
+ * Parameters:
+ *    authenticatedEmployee - pointer to the employee to be set as authenticated.
+ * Returns:
+ *    void - no return value.
+ */
+void DataStore::setAuthenticatedEmployee(Employee* authenticatedEmployee)
 {
     m_authenticatedEmployee = authenticatedEmployee;
 }
 
+/*
+ * Function: getEmployees
+ * Description: retrieves the map containing all employees.
+ * Parameters:
+ *    None
+ * Returns:
+ *    employeeMap& - reference to the employee map.
+ */
 employeeMap& DataStore::getEmployees()
 {
     return m_employees;
 }
 
-std::shared_ptr<Employee>& DataStore::getAuthenticatedUser()
+/*
+ * Function: getPayrolls
+ * Description: retrieves the map containing all payroll records.
+ * Parameters:
+ *    None
+ * Returns:
+ *    payrollMap& - reference to the payroll map.
+ */
+payrollMap& DataStore::getPayrolls()
 {
-	return m_authenticatedEmployee;
+    return m_payrolls;
 }
 
+/*
+ * Function: getPayslips
+ * Description: retrieves the map containing all payslip records.
+ * Parameters:
+ *    None
+ * Returns:
+ *    payslipMap& - reference to the payslip map.
+ */
+payslipMap& DataStore::getPayslips()
+{
+    return m_payslips;
+}
+
+/*
+ * Function: getCandidates
+ * Description: retrieves the map containing all shortlisted candidates.
+ * Parameters:
+ *    None
+ * Returns:
+ *    candidateMap& - reference to the candidate map.
+ */
+candidateMap& DataStore::getCandidates()
+{
+    return m_candidates;
+}
+
+/*
+ * Function: ~DataStore
+ * Description: releases all dynamically allocated objects stored in the DataStore.
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - no return value.
+ */
+DataStore::~DataStore()
+{
+    for (auto& pair : m_employees)
+    {
+        delete pair.second;
+    }
+    m_employees.clear();
+    for (auto& pair : m_payrolls)
+    {
+        delete pair.second;
+    }
+    m_payrolls.clear();
+    for (auto& pair : m_payslips)
+    {
+        delete pair.second;
+    }
+    m_payslips.clear();
+    for (auto& pair : m_logs)
+    {
+        delete pair.second;
+    }
+    m_logs.clear();
+    for (auto& pair : m_candidates)
+    {
+        delete pair.second;
+    }
+    m_candidates.clear();
+    m_authenticatedEmployee = nullptr;
+}

Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.h

@@ -1,5 +1,11 @@
+/*
+ * File: DataStore.h
+ * Description: Central Storage for all the System Data.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #pragma once
-#include <memory>
 #include <map>
 #include "Employee.h"
 #include "Log.h"
@@ -18,17 +24,25 @@
 #include "Notification.h"
 #include "Announcement.h"
 #include "Faq.h"
+#include "Payroll.h"
+#include "Payslip.h"
 
-using employeeMap = std::map<std::string, std::shared_ptr<Employee>>;
-using logMap = std::map<util::Timestamp, std::shared_ptr<Log>>;
+using employeeMap = std::map<std::string, Employee*>;
+using payrollMap = std::map<std::string, Payroll*>;
+using payslipMap = std::map<std::string, Payslip*>;
+using logMap = std::map<util::Timestamp, Log*>;
+using candidateMap = std::map<std::string, Candidate*>;
 
 class DataStore
 {
 private:
-    std::shared_ptr<Employee> m_authenticatedEmployee;
+    Employee* m_authenticatedEmployee;
     employeeMap m_employees;
+    payrollMap m_payrolls;
+    payslipMap m_payslips;
     logMap m_logs;
-    DataStore() = default;
+    candidateMap m_candidates;
+    DataStore() : m_authenticatedEmployee(nullptr) {};
 public:
     static DataStore& getInstance();
     DataStore(const DataStore&) = delete;
@@ -36,8 +50,11 @@ public:
     DataStore(DataStore&&) = delete;
     DataStore& operator=(DataStore&&) = delete;
     employeeMap& getEmployees();
-    std::shared_ptr<Employee>& getAuthenticatedUser();
+    payrollMap& getPayrolls();
+    payslipMap& getPayslips();
     logMap& getLogs();
-    std::shared_ptr<Employee>& getAuthenticatedEmployee();
-    void setAuthenticatedEmployee(std::shared_ptr < Employee>);
+    candidateMap& getCandidates();
+    Employee*& getAuthenticatedEmployee();
+    void setAuthenticatedEmployee(Employee*);
+    ~DataStore();
 };

Trenser.Zenvy/Trenser.Zenvy/factories/Factory.h

@@ -1,13 +1,29 @@
+/*
+ * File: Factory.h
+ * Description: Provides a generic factory utility to create objects.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #pragma once
-#include <memory>
 #include <utility>
 
 class Factory
 {
 public:
+
+    /*
+     * Function: getObject
+     * Description: Creates and returns a dynamically allocated object of type T.
+     * Parameters:
+     *    T - the type of object to be created
+     *    Args - constructor arguments forwarded to T's constructor
+     * Returns:
+     *    T* - pointer to the newly created object
+     */
     template<typename T, typename... Args>
-	static std::shared_ptr<T> getObject(Args&&... args)
+    static T* getObject(Args&&... args)
     {
-		return std::make_shared<T>(std::forward<Args>(args)...);
+        return new T(std::forward<Args>(args)...);
     }
 };

Trenser.Zenvy/Trenser.Zenvy/models/Admin.cpp

@@ -1 +1,7 @@
+/*
+ * File: Admin.cpp
+ * Description: Admin model class
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Admin.h"

Trenser.Zenvy/Trenser.Zenvy/models/Admin.h

@@ -1,6 +1,38 @@
+/*
+ * File: Admin.h
+ * Description: Admin model class
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
 class Admin : public Employee
 {
+public:
+    Admin() = default;
+    Admin(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+    ) :Employee(name, phone, email, Enums::EmployeeType::ADMIN, payroll) {};
+    Admin(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::ADMIN,
+            accountStatus) {}
+    ~Admin() = default;
 };

Trenser.Zenvy/Trenser.Zenvy/models/Announcement.cpp

@@ -1,5 +1,13 @@
+/*
+ * File: Announcement.cpp
+ * Description: The Announcement class defines a simple object for managing announcement details.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Announcement.h"
 
+int Announcement::m_uid = 0;
+
 const std::string& Announcement::getAnnouncementId() const
 {
     return m_id;

Trenser.Zenvy/Trenser.Zenvy/models/Announcement.h

@@ -1,3 +1,9 @@
+/*
+ * File: Announcement.h
+ * Description: The Announcement class defines a simple object for managing announcement details.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include "Timestamp.h"
@@ -5,14 +11,14 @@
 class Announcement
 {
 private:
+    static int m_uid;
     std::string m_id;
     util::Timestamp m_timestamp;
     std::string m_message;
 public:
-    Announcement() : m_id(""), m_timestamp(), m_message("") {}
-    Announcement(const std::string& id,
-        const std::string& message)
-        : m_id(id), m_message(message) {}
+    Announcement() : m_id("AN" + std::to_string(++m_uid)), m_timestamp(), m_message("") {}
+    Announcement(const std::string& message)
+        : m_id("AN" + std::to_string(++m_uid)), m_message(message) {}
     const std::string& getAnnouncementId() const;
     const util::Timestamp& getAnnouncementTimestamp() const;
     const std::string& getAnnouncementMessage() const;

Trenser.Zenvy/Trenser.Zenvy/models/Attendance.cpp

@@ -1,5 +1,13 @@
+/*
+ * File: Attendance.cpp
+ * Description: The Attendance class represents an attendance record by storing an ID, login and logout timestamps.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Attendance.h"
 
+int Attendance::m_uid = 0;
+
 const std::string& Attendance::getAttendanceId() const
 {
     return m_id;

Trenser.Zenvy/Trenser.Zenvy/models/Attendance.h

@@ -1,3 +1,9 @@
+/*
+ * File: Attendance.h
+ * Description: The Attendance class represents an attendance record by storing an ID, login and logout timestamps.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include "Timestamp.h"
@@ -5,15 +11,15 @@
 class Attendance
 {
 private:
+    static int m_uid;
     std::string m_id;
     util::Timestamp m_loginTime;
     util::Timestamp m_logoutTime;
 public:
-    Attendance() : m_id(""), m_loginTime(), m_logoutTime() {}
-    Attendance(const std::string& id,
-        const util::Timestamp& loginTime,
+    Attendance() : m_id("AD" + std::to_string(++m_uid)), m_loginTime(), m_logoutTime() {}
+    Attendance(const util::Timestamp& loginTime,
         const util::Timestamp& logoutTime)
-        : m_id(id), m_loginTime(loginTime), m_logoutTime(logoutTime) {}
+        : m_id("AD" + std::to_string(++m_uid)), m_loginTime(loginTime), m_logoutTime(logoutTime) {}
     const std::string& getAttendanceId() const;
     const util::Timestamp& getLoginTime() const;
     const util::Timestamp& getLogoutTime() const;

Trenser.Zenvy/Trenser.Zenvy/models/Booking.cpp

@@ -1,5 +1,13 @@
+/*
+ * File: Booking.cpp
+ * Description: The Booking class represents a time‑based booking with employee and team details and supports duration calculation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Booking.h"
 
+int Booking::m_uid = 0;
+
 const std::string& Booking::getBookingId() const
 {
     return m_id;
@@ -20,7 +28,7 @@ const std::string& Booking::getEmployeeId() const
     return m_employeeId;
 }
 
-std::shared_ptr<Team> Booking::getTeam() const
+Team* Booking::getTeam() const
 {
     return m_team;
 }
@@ -45,7 +53,7 @@ void Booking::setEmployeeId(const std::string& employeeId)
     m_employeeId = employeeId;
 }
 
-void Booking::setTeam(std::shared_ptr<Team> team)
+void Booking::setTeam(Team* team)
 {
     m_team = team;
 }

Trenser.Zenvy/Trenser.Zenvy/models/Booking.h

@@ -1,35 +1,40 @@
+/*
+ * File: Booking.h
+ * Description: The Booking class represents a time?based booking with employee and team details and supports duration calculation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
-#include <memory>
 #include "Team.h"
 #include "Timestamp.h"
 
 class Booking
 {
 private:
+    static int m_uid;
     std::string m_id;
     util::Timestamp m_startTime;
     util::Timestamp m_endTime;
     std::string m_employeeId;
-    std::shared_ptr<Team> m_team;
+    Team* m_team;
 public:
-    Booking() : m_id(""), m_startTime(), m_endTime(), m_employeeId(""), m_team(nullptr) {}
-    Booking(const std::string& id,
-        const util::Timestamp& startTime,
+    Booking() : m_id("BK" + std::to_string(++m_uid)), m_startTime(), m_endTime(), m_employeeId(""), m_team(nullptr) {}
+    Booking(const util::Timestamp& startTime,
         const util::Timestamp& endTime,
         const std::string& employeeId,
-        std::shared_ptr<Team> team)
-        : m_id(id), m_startTime(startTime), m_endTime(endTime), m_employeeId(employeeId), m_team(team) {}
+        Team* team)
+        : m_id("BK" + std::to_string(++m_uid)), m_startTime(startTime), m_endTime(endTime), m_employeeId(employeeId), m_team(team) {}
     const std::string& getBookingId() const;
     const util::Timestamp& getStartTime() const;
     const util::Timestamp& getEndTime() const;
     const std::string& getEmployeeId() const;
-    std::shared_ptr<Team> getTeam() const;
+    Team* getTeam() const;
     void setBookingId(const std::string& id);
     void setStartTime(const util::Timestamp& startTime);
     void setEndTime(const util::Timestamp& endTime);
     void setEmployeeId(const std::string& employeeId);
-    void setTeam(std::shared_ptr<Team> team);
+    void setTeam(Team* team);
     double getDurationInHours() const;
     double getDurationInMinutes() const;
 };

Trenser.Zenvy/Trenser.Zenvy/models/Candidate.cpp

@@ -1,5 +1,13 @@
+/*
+ * File: Candidate.cpp
+ * Description: The Candidate class stores and manages a candidate’s information.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Candidate.h"
 
+int Candidate::m_uid = 0;
+
 const std::string& Candidate::getCandidateId() const
 {
     return m_id;
@@ -10,7 +18,7 @@ const std::string& Candidate::getCandidateName() const
     return m_name;
 }
 
-long int Candidate::getCandidatePhone() const
+const std::string& Candidate::getCandidatePhone() const
 {
     return m_phone;
 }
@@ -35,7 +43,7 @@ void Candidate::setCandidateName(const std::string& name)
     m_name = name;
 }
 
-void Candidate::setCandidatePhone(long int phone)
+void Candidate::setCandidatePhone(const std::string& phone)
 {
     m_phone = phone;
 }

Trenser.Zenvy/Trenser.Zenvy/models/Candidate.h

@@ -1,3 +1,9 @@
+/*
+ * File: Candidate.h
+ * Description: The Candidate class stores and manages a candidate’s information.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include "Enums.h"
@@ -5,27 +11,27 @@
 class Candidate
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_name;
-    long int m_phone;
+    std::string m_phone;
     std::string m_qualification;
     Enums::CandidateStatus m_status;
 public:
-    Candidate() : m_id(""), m_name(""), m_phone(0), m_qualification(""), m_status(Enums::CandidateStatus::PENDING) {}
-    Candidate(const std::string& id,
-        const std::string& name,
-        long int phone,
+    Candidate() : m_id("CD" + std::to_string(++m_uid)), m_name(""), m_phone(""), m_qualification(""), m_status(Enums::CandidateStatus::PENDING) {}
+    Candidate(const std::string& name,
+        const std::string& phone,
         const std::string& qualification,
         Enums::CandidateStatus status)
-        : m_id(id), m_name(name), m_phone(phone), m_qualification(qualification), m_status(status) {}
+        : m_id("CD" + std::to_string(++m_uid)), m_name(name), m_phone(phone), m_qualification(qualification), m_status(status) {}
     const std::string& getCandidateId() const;
     const std::string& getCandidateName() const;
-    long int getCandidatePhone() const;
+    const std::string& getCandidatePhone() const;
     const std::string& getCandidateQualification() const;
     Enums::CandidateStatus getCandidateStatus() const;
     void setCandidateId(const std::string& id);
     void setCandidateName(const std::string& name);
-    void setCandidatePhone(long int phone);
+    void setCandidatePhone(const std::string& phone);
     void setCandidateQualification(const std::string& qualification);
     void setCandidateStatus(Enums::CandidateStatus status);
 };

Trenser.Zenvy/Trenser.Zenvy/models/Employee.cpp

@@ -1,6 +1,51 @@
+/*
+ * File: Employee.cpp
+ * Description: The Employee class manages employee information and associated work records such as payroll, attendance, leaves, and payslips.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
+#include <sstream>
 #include "Employee.h"
+#include "Factory.h"
+#include "StringHelper.h"
+#include "Admin.h"
+#include "HRManager.h"
+#include "ITExecutive.h"
+#include "TalentExecutive.h"
+#include "TeamExecutive.h"
+#include "FinanceExecutive.h"
+#include "GeneralEmployee.h"
 
-const std::string& Employee::getEmployeeId() const
+int Employee::m_uid = 0;
+
+Employee::Employee(const std::string& id,
+    const std::string& name,
+    const std::string& phone,
+    const std::string& password,
+    const std::string& email,
+    const std::string& teamId,
+    Enums::TeamStatus teamStatus,
+    Enums::EmployeeType employeeType,
+    Enums::AccountStatus accountStatus)
+    : m_id(id),
+    m_password(password),
+    m_name(name),
+    m_phone(phone),
+    m_email(email),
+    m_accountStatus(accountStatus),
+    m_teamStatus(teamStatus),
+    m_teamId(teamId),
+    m_employeeType(employeeType),
+    m_payroll()
+{
+    int idNumber = util::extractNumber(m_id);
+    if (idNumber > m_uid)
+    {
+        m_uid = idNumber;
+    }
+}
+
+const std::string& Employee::getId() const
 {
     return m_id;
 }
@@ -40,7 +85,7 @@ const std::string& Employee::getEmployeeTeamId() const
     return m_teamId;
 }
 
-std::shared_ptr<Payroll> Employee::getPayroll() const
+Payroll* Employee::getPayroll() const
 {
     return m_payroll;
 }
@@ -60,6 +105,16 @@ const leaveMap& Employee::getEmployeeLeaves() const
     return m_leaves;
 }
 
+Enums::EmployeeType Employee::getEmployeeType() const
+{
+    return m_employeeType;
+}
+
+std::string Employee::getHeaders()
+{
+    return "EmployeeId,Email,Name,Phone,Password,TeamID,TeamStatus,AccountStatus,EmployeeType";
+}
+
 void Employee::setEmployeeId(const std::string& id)
 {
     m_id = id;
@@ -95,20 +150,36 @@ void Employee::setEmployeeTeamId(const std::string& teamId)
     m_teamId = teamId;
 }
 
-void Employee::setEmployeePayroll(std::shared_ptr<Payroll> payroll)
+void Employee::setEmployeePayroll(Payroll* payroll)
 {
     m_payroll = payroll;
 }
 
-void Employee::addPayslip(std::shared_ptr<Payslip> payslip)
+/*
+* Function: addPayslip
+* Description : Adds a payslip to the employee's payslip records
+* Parameters :
+     payslip - Pointer to the Payslip object to be added
+* Returns :
+     void
+ */
+void Employee::addPayslip(Payslip* payslip)
 {
     if (payslip)
     {
-        m_payslips[payslip->getPayslipId()] = payslip;
+        m_payslips[payslip->getId()] = payslip;
     }
 }
 
-void Employee::addAttendance(std::shared_ptr<Attendance> attendance)
+/*
+ * Function: addAttendance
+ * Description: Adds an attendance record to the employee's attendance history
+ * Parameters:
+ *    attendance - Pointer to the Attendance object containing login information
+ * Returns:
+ *    void
+ */
+void Employee::addAttendance(Attendance* attendance)
 {
     if (attendance)
     {
@@ -116,7 +187,15 @@ void Employee::addAttendance(std::shared_ptr<Attendance> attendance)
     }
 }
 
-void Employee::addLeave(std::shared_ptr<Leave> leave)
+/*
+ * Function: addLeave
+ * Description: Adds a leave record to the employee's leave history
+ * Parameters:
+ *    leave - Pointer to the Leave object to be added
+ * Returns:
+ *    void
+ */
+void Employee::addLeave(Leave* leave)
 {
     if (leave)
     {
@@ -124,7 +203,125 @@ void Employee::addLeave(std::shared_ptr<Leave> leave)
     }
 }
 
-Enums::EmployeeType Employee::getEmployeeType() const
+/*
+ * Function: serialize
+ * Description: Serializes the employee object's core details into a comma-separated string
+ * Parameters:
+      None
+ * Returns:
+      A string containing serialized employee data in CSV format
+ */
+std::string Employee::serialize() const
 {
-    return m_employeeType;
+    std::ostringstream serializedEmployee;
+    serializedEmployee << m_id << ','
+        << m_email << ','
+        << m_name << ','
+        << m_phone << ','
+        << m_password << ','
+        << m_teamId << ','
+        << Enums::getTeamStatusString(m_teamStatus) << ','
+        << Enums::getAccountStatusString(m_accountStatus) << ','
+        << Enums::getEmployeeTypeString(m_employeeType);
+    return serializedEmployee.str();
+}
+
+/*
+ * Function: deserialize
+ * Description: Creates and returns an Employee object from a serialized comma-separated record string
+ * Parameters:
+      record - A string containing serialized employee data in CSV format
+ * Returns:
+      Pointer to a newly created Employee object based on the employee type
+ */
+Employee* Employee::deserialize(const std::string& record)
+{
+    std::string id, name, phone, password, email;
+    std::string teamId, teamStatusString, accountStatusString, employeeTypeString;
+    std::istringstream serializedEmployee(record);
+    getline(serializedEmployee, id, ',');
+    getline(serializedEmployee, email, ',');
+    getline(serializedEmployee, name, ',');
+    getline(serializedEmployee, phone, ',');
+    getline(serializedEmployee, password, ',');
+    getline(serializedEmployee, teamId, ',');
+    getline(serializedEmployee, teamStatusString, ',');
+    getline(serializedEmployee, accountStatusString, ',');
+    getline(serializedEmployee, employeeTypeString, ',');
+    Enums::TeamStatus teamStatus = Enums::getTeamStatus(teamStatusString);
+    Enums::AccountStatus accountStatus = Enums::getAccountStatus(accountStatusString);
+    Enums::EmployeeType employeeType = Enums::getEmployeeType(employeeTypeString);
+    switch (employeeType)
+    {
+    case Enums::EmployeeType::IT:
+        return Factory::getObject<ITExecutive>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::FINANCE:
+        return Factory::getObject<FinanceExecutive>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::HR:
+        return Factory::getObject<HRManager>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::TEAM:
+        return Factory::getObject<TeamExecutive>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::TALENT_ACQUISITION:
+        return Factory::getObject<TalentExecutive>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::ADMIN:
+        return Factory::getObject<Admin>(
+            id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            accountStatus
+        );
+    case Enums::EmployeeType::GENERAL:
+        throw std::runtime_error("Cannot deserialize GeneralEmployee!");
+    default:
+        return nullptr;
+    }
 }

Trenser.Zenvy/Trenser.Zenvy/models/Employee.h

@@ -1,19 +1,26 @@
+/*
+ * File: Employee.h
+ * Description: The Employee class manages employee information and associated work records such as payroll, attendance, leaves, and payslips.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
-#include <memory>
 #include <map>
 #include "Payslip.h"
 #include "Attendance.h"
 #include "Leave.h"
 #include "Payroll.h"
 #include "Enums.h"
-using payslipMap = std::map<std::string, std::shared_ptr<Payslip>>;
-using attendanceMap = std::map<int, std::map<std::string, std::shared_ptr<Attendance>>>;
-using leaveMap = std::map<std::string, std::shared_ptr<Leave>>;
+#include "ApplicationConfig.h"
+using payslipMap = std::map<std::string, Payslip*>;
+using attendanceMap = std::map<int, std::map<std::string, Attendance*>>;
+using leaveMap = std::map<std::string, Leave*>;
 
 class Employee
 {
-private:
+protected:
+    static int m_uid;
     std::string m_id;
     std::string m_password;
     std::string m_name;
@@ -22,23 +29,48 @@ private:
     Enums::AccountStatus m_accountStatus;
     Enums::TeamStatus m_teamStatus;
     std::string m_teamId;
-    std::shared_ptr<Payroll> m_payroll;
+    Payroll* m_payroll;
     payslipMap m_payslips;
     attendanceMap m_attendances;
     leaveMap m_leaves;
     Enums::EmployeeType m_employeeType;
 public:
-    Employee() : m_id(""), m_password(""), m_name(""), m_phone(""), m_email(""), m_accountStatus(Enums::AccountStatus::ACTIVE), m_teamStatus(Enums::TeamStatus::NOT_IN_TEAM), m_teamId(""), m_employeeType(Enums::EmployeeType::GENERAL) {}
-    Employee(const std::string& id,
-        const std::string& password,
-        const std::string& name,
+    Employee()
+        : m_id("EMP" + std::to_string(++m_uid)),
+        m_password(Config::Authentication::DEFAULT_PASSWORD),
+        m_name(""),
+        m_phone(""),
+        m_email(""),
+        m_accountStatus(Enums::AccountStatus::ACTIVE),
+        m_teamStatus(Enums::TeamStatus::NOT_IN_TEAM),
+        m_teamId(""),
+        m_payroll(nullptr),
+        m_employeeType(Enums::EmployeeType::GENERAL) {}
+    Employee(const std::string& name,
         const std::string& phone,
         const std::string& email,
-        const std::string& teamId,
         Enums::EmployeeType employeeType,
-        std::shared_ptr<Payroll> payroll)
-        : m_id(id), m_password(password), m_name(name), m_phone(phone), m_email(email), m_accountStatus(Enums::AccountStatus::ACTIVE), m_teamStatus(Enums::TeamStatus::NOT_IN_TEAM), m_teamId(teamId), m_employeeType(employeeType), m_payroll(payroll) { }
-    const std::string& getEmployeeId() const;
+        Payroll* payroll)
+        : m_id("EMP" + std::to_string(++m_uid)),
+        m_password(Config::Authentication::DEFAULT_PASSWORD),
+        m_name(name),
+        m_phone(phone),
+        m_email(email),
+        m_accountStatus(Enums::AccountStatus::ACTIVE),
+        m_teamStatus(Enums::TeamStatus::NOT_IN_TEAM),
+        m_teamId(""),
+        m_employeeType(employeeType),
+        m_payroll(payroll) {}
+    Employee(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::EmployeeType employeeType,
+        Enums::AccountStatus accountStatus);
+    const std::string& getId() const;
     const std::string& getEmployeePassword() const;
     const std::string& getEmployeeName() const;
     const std::string& getEmployeePhone() const;
@@ -46,7 +78,7 @@ public:
     Enums::AccountStatus getEmployeeAccountStatus() const;
     Enums::TeamStatus getEmployeeTeamStatus() const;
     const std::string& getEmployeeTeamId() const;
-    std::shared_ptr<Payroll> getPayroll() const;
+    Payroll* getPayroll() const;
     const payslipMap& getEmployeePayslips() const;
     const attendanceMap& getEmployeeAttendances() const;
     const leaveMap& getEmployeeLeaves() const;
@@ -57,10 +89,13 @@ public:
     void setEmployeeAccountStatus(Enums::AccountStatus status);
     void setEmployeeTeamStatus(Enums::TeamStatus status);
     void setEmployeeTeamId(const std::string& teamId);
-    void setEmployeePayroll(std::shared_ptr<Payroll> payroll);
-    void addPayslip(std::shared_ptr<Payslip> payslip);
-    void addAttendance(std::shared_ptr<Attendance> attendance);
-    void addLeave(std::shared_ptr<Leave> leave);
+    void setEmployeePayroll(Payroll* payroll);
+    void addPayslip(Payslip* payslip);
+    void addAttendance(Attendance* attendance);
+    void addLeave(Leave* leave);
     Enums::EmployeeType getEmployeeType() const;
+    virtual std::string serialize() const;
+    static Employee* deserialize(const std::string&);
+    static std::string getHeaders();
     virtual ~Employee() = default;
 };

Trenser.Zenvy/Trenser.Zenvy/models/FAQ.cpp

@@ -1 +1,7 @@
+/*
+ * File: Faq.h
+ * Description: Faq model class.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #include "Faq.h"

Trenser.Zenvy/Trenser.Zenvy/models/FAQ.h

@@ -1,6 +1,11 @@
+/*
+ * File: Faq.h
+ * Description: Faq model class.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #pragma once
 
 class Faq
 {
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.cpp

@@ -1 +1,7 @@
+/*
+ * File: FinanceExecutive.h
+ * Description: FinanceExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "FinanceExecutive.h"

Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.h

@@ -1,7 +1,38 @@
+/*
+ * File: FinanceExecutive.h
+ * Description: FinanceExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
 class FinanceExecutive : public Employee
 {
+public:
+	FinanceExecutive() = default;
+	FinanceExecutive(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+	) :Employee(name, phone, email, Enums::EmployeeType::FINANCE, payroll) {};
+  FinanceExecutive(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::FINANCE,
+            accountStatus) {}
+    ~FinanceExecutive() = default;
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.cpp

@@ -1,11 +1,88 @@
+/*
+ * File: GeneralEmployee.h
+ * Description: The GeneralEmployee class represents a general employee with a specific designation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
+#include <sstream>
 #include "GeneralEmployee.h"
+#include "Factory.h"
 
 Enums::EmployeeDesignation GeneralEmployee::getDesignation() const 
 {
     return m_designation;
 }
 
+std::string GeneralEmployee::getHeaders()
+{
+    return "EmployeeId,Email,Name,Phone,Password,TeamID,TeamStatus,AccountStatus,EmployeeType,EmployeeDesignation";
+}
+
 void GeneralEmployee::setDesignation(Enums::EmployeeDesignation designation)
 {
     m_designation = designation;
 }
+
+/*
+ * Function: serialize
+ * Description: Serializes the general employee's details, including designation, into a comma-separated string
+ * Parameters:
+      None
+ * Returns:
+      A string containing serialized general employee data in CSV format
+ */
+std::string GeneralEmployee::serialize() const
+{
+    std::ostringstream serializedEmployee;
+    serializedEmployee << m_id << ','
+        << m_email << ','
+        << m_name << ','
+        << m_phone << ','
+        << m_password << ','
+        << m_teamId << ','
+        << Enums::getTeamStatusString(m_teamStatus) << ','
+        << Enums::getAccountStatusString(m_accountStatus) << ','
+        << Enums::getEmployeeTypeString(m_employeeType) << ','
+        << Enums::getEmployeeDesignationString(m_designation);
+    return serializedEmployee.str();
+}
+
+/*
+ * Function: deserialize
+ * Description: Creates and returns a GeneralEmployee object from a serialized comma-separated record string
+ * Parameters:
+     record - A string containing serialized general employee data in CSV format
+ * Returns:
+     Pointer to a newly created GeneralEmployee object
+ */
+GeneralEmployee* GeneralEmployee::deserialize(const std::string& record)
+{
+    std::string id, name, phone, password, email;
+    std::string teamId, teamStatusString, accountStatusString, employeeTypeString, employeeDesignationString;
+    std::istringstream serializedEmployee(record);
+    getline(serializedEmployee, id, ',');
+    getline(serializedEmployee, email, ',');
+    getline(serializedEmployee, name, ',');
+    getline(serializedEmployee, phone, ',');
+    getline(serializedEmployee, password, ',');
+    getline(serializedEmployee, teamId, ',');
+    getline(serializedEmployee, teamStatusString, ',');
+    getline(serializedEmployee, accountStatusString, ',');
+    getline(serializedEmployee, employeeTypeString, ',');
+    getline(serializedEmployee, employeeDesignationString, ',');
+    Enums::TeamStatus teamStatus = Enums::getTeamStatus(teamStatusString);
+    Enums::AccountStatus accountStatus = Enums::getAccountStatus(accountStatusString);
+    Enums::EmployeeType employeeType = Enums::getEmployeeType(employeeTypeString);
+    Enums::EmployeeDesignation employeeDesignation = Enums::getEmployeeDesignation(employeeDesignationString);
+    return Factory::getObject<GeneralEmployee>(
+        id,
+        name,
+        phone,
+        password,
+        email,
+        teamId,
+        teamStatus,
+        employeeDesignation,
+        accountStatus
+    );
+}

Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.h

@@ -1,3 +1,9 @@
+/*
+ * File: GeneralEmployee.h
+ * Description: The GeneralEmployee class represents a general employee with a specific designation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 #include "Enums.h"
@@ -7,16 +13,42 @@ class GeneralEmployee : public Employee
 private:
     Enums::EmployeeDesignation m_designation;
 public:
-    GeneralEmployee() : m_designation(Enums::EmployeeDesignation::JUNIOR) {}
-    GeneralEmployee(const std::string& id,
-        const std::string& password,
-        const std::string& name,
+    GeneralEmployee()
+        : m_designation(Enums::EmployeeDesignation::JUNIOR) {}
+    GeneralEmployee(const std::string& name,
         const std::string& phone,
         const std::string& email,
+        Payroll* payroll,
+        Enums::EmployeeDesignation designation)
+        : Employee(name,
+            phone,
+            email,
+            Enums::EmployeeType::GENERAL,
+            payroll),
+        m_designation(designation) {}
+    GeneralEmployee(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
         const std::string& teamId,
-        std::shared_ptr<Payroll> payroll,
-        Enums::EmployeeDesignation designation) : Employee(id, password, name, phone, email, teamId,Enums::EmployeeType::GENERAL, payroll), m_designation(designation) {}
+        Enums::TeamStatus teamStatus,
+        Enums::EmployeeDesignation employeeDesignation,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::GENERAL,
+            accountStatus),
+        m_designation(employeeDesignation) {}
     Enums::EmployeeDesignation getDesignation() const;
     void setDesignation(Enums::EmployeeDesignation designation);
+    std::string serialize() const override;
+    static GeneralEmployee* deserialize(const std::string&);
+    static std::string getHeaders();
     ~GeneralEmployee() = default;
 };

Trenser.Zenvy/Trenser.Zenvy/models/HRManager.cpp

@@ -1 +1,7 @@
+/*
+ * File: HRManager.cpp
+ * Description: HRManager model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "HRManager.h"

Trenser.Zenvy/Trenser.Zenvy/models/HRManager.h

@@ -1,7 +1,38 @@
+/*
+ * File: HRManager.h
+ * Description: HRManager model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
 class HRManager : public Employee
 {
+public:
+    HRManager() = default;
+    HRManager(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+    ) :Employee(name, phone, email, Enums::EmployeeType::HR, payroll) {};
+    HRManager(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::HR,
+            accountStatus) {}
+    ~HRManager() = default;
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.cpp

@@ -1 +1,7 @@
+/*
+ * File: ITExecutive.cpp
+ * Description: ITExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "ITExecutive.h"

Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.h

@@ -1,7 +1,38 @@
+/*
+ * File: ITExecutive.h
+ * Description: ITExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
 class ITExecutive : public Employee
 {
+public:
+    ITExecutive() = default;
+    ITExecutive(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+    ) :Employee(name, phone, email, Enums::EmployeeType::IT, payroll) {};
+    ITExecutive(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::IT,
+            accountStatus) {}
+    ~ITExecutive() = default;
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/JobListing.cpp

@@ -1,5 +1,13 @@
+/*
+File: JobListing.cpp
+* Description : Represents a job opening along with its details and applied candidates.
+* Author : Trenser
+* Created : 01-Apr-2026
+*/
 #include "JobListing.h"
 
+int JobListing::m_uid = 0;
+
 const std::string& JobListing::getJobId() const
 {
     return m_id;

Trenser.Zenvy/Trenser.Zenvy/models/JobListing.h

@@ -1,14 +1,20 @@
+/*
+File: JobListing.h
+* Description : Represents a job opening along with its details and applied candidates.
+* Author : Trenser
+* Created : 01-Apr-2026
+*/
 #pragma once
 #include <string>
 #include <map>
-#include <memory>
 #include "Candidate.h"
 #include "Enums.h"
-using candidateMap = std::map<std::string, std::shared_ptr<Candidate>>;
+using candidateMap = std::map<std::string, Candidate*>;
 
 class JobListing
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_name;
     std::string m_description;
@@ -16,14 +22,13 @@ private:
     int m_numberOfVacancies;
     candidateMap m_candidates;
 public:
-    JobListing() : m_id(""), m_name(""), m_description(""), m_status(Enums::JobListingStatus::CLOSED), m_numberOfVacancies(0) {}
-    JobListing(const std::string& id,
-        const std::string& name,
+    JobListing() : m_id("JL" + std::to_string(++m_uid)), m_name(""), m_description(""), m_status(Enums::JobListingStatus::CLOSED), m_numberOfVacancies(0) {}
+    JobListing(const std::string& name,
         const std::string& description,
         Enums::JobListingStatus status,
         int numberOfVacancies,
         const candidateMap& candidates)
-        : m_id(id), m_name(name), m_description(description), m_status(status), m_numberOfVacancies(numberOfVacancies), m_candidates(candidates) {}
+        : m_id("JL" + std::to_string(++m_uid)), m_name(name), m_description(description), m_status(status), m_numberOfVacancies(numberOfVacancies), m_candidates(candidates) {}
     const std::string& getJobId() const;
     const std::string& getJobName() const;
     const std::string& getJobDescription() const;

Trenser.Zenvy/Trenser.Zenvy/models/Leave.cpp

@@ -1,5 +1,13 @@
+/*
+File: Leave.cpp
+* Description : Stores information related to an employee’s leave application.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "Leave.h"
 
+int Leave::m_uid = 0;
+
 const std::string& Leave::getLeaveId() const
 {
     return m_id;
@@ -20,21 +28,6 @@ const std::string& Leave::getLeaveReason() const
     return m_reason;
 }
 
-int Leave::getNumberOfGeneralLeave()
-{
-    return m_numberOfGeneralLeave;
-}
-
-int Leave::getNumberOfRestrictedLeave()
-{
-    return m_numberOfRestrictedLeave;
-}
-
-int Leave::getNumberOfMedicalLeave()
-{
-    return m_numberOfMedicalLeave;
-}
-
 Enums::LeaveType Leave::getLeaveType() const
 {
     return m_leaveType;
@@ -60,28 +53,7 @@ void Leave::setLeaveReason(const std::string& reason)
     m_reason = reason;
 }
 
-void Leave::setNumberOfGeneralLeave(int value)
-{
-    m_numberOfGeneralLeave = value;
-}
-
-void Leave::setNumberOfRestrictedLeave(int value)
-{
-    m_numberOfRestrictedLeave = value;
-}
-
-void Leave::setNumberOfMedicalLeave(int value)
-{
-    m_numberOfMedicalLeave = value;
-}
-
 void Leave::setLeaveType(Enums::LeaveType type)
 {
     m_leaveType = type;
 }
-
-int Leave::m_numberOfGeneralLeave = 12;
-
-int Leave::m_numberOfRestrictedLeave = 2;
-
-int Leave::m_numberOfMedicalLeave = 6;

Trenser.Zenvy/Trenser.Zenvy/models/Leave.h

@@ -1,3 +1,9 @@
+/*
+File: Leave.h
+* Description : Stores information related to an employee’s leave application.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
 #include "Enums.h"
@@ -6,36 +12,27 @@
 class Leave
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_employeeId;
     util::Timestamp m_timestamp;
     std::string m_reason;
-    static int m_numberOfGeneralLeave;
-    static int m_numberOfRestrictedLeave;
-    static int m_numberOfMedicalLeave;
     Enums::LeaveType m_leaveType;
 public:
-    Leave() : m_id(""), m_employeeId(""), m_timestamp(), m_reason(""), m_leaveType(Enums::LeaveType::GENERAL) {}
-    Leave(const std::string& id,
-        const std::string& employeeId,
+    Leave() : m_id("LV" + std::to_string(++m_uid)), m_employeeId(""), m_timestamp(), m_reason(""), m_leaveType(Enums::LeaveType::GENERAL) {}
+    Leave(const std::string& employeeId,
         const util::Timestamp& timestamp,
         const std::string& reason,
         Enums::LeaveType leaveType)
-        : m_id(id), m_employeeId(employeeId), m_timestamp(timestamp), m_reason(reason), m_leaveType(leaveType) {}
+        : m_id("LV" + std::to_string(++m_uid)), m_employeeId(employeeId), m_timestamp(timestamp), m_reason(reason), m_leaveType(leaveType) {}
     const std::string& getLeaveId() const;
     const std::string& getEmployeeId() const;
     const util::Timestamp& getTimestamp() const;
     const std::string& getLeaveReason() const;
-    static int getNumberOfGeneralLeave();
-    static int getNumberOfRestrictedLeave();
-    static int getNumberOfMedicalLeave();
     Enums::LeaveType getLeaveType() const;
     void setLeaveId(const std::string& id);
     void setEmployeeId(const std::string& employeeId);
     void setTimestamp(const util::Timestamp& timestamp);
     void setLeaveReason(const std::string& reason);
-    void setNumberOfGeneralLeave(int value);
-    void setNumberOfRestrictedLeave(int value);
-    void setNumberOfMedicalLeave(int value);
     void setLeaveType(Enums::LeaveType type);
 };

Trenser.Zenvy/Trenser.Zenvy/models/Log.cpp

@@ -1,3 +1,9 @@
+/*
+File: Log.cpp
+* Description : Represents a log entry containing a timestamp and an associated message.
+* Author : Trenser
+* Created : 01-Apr-2026
+*/
 #include "Log.h"
 
 const util::Timestamp& Log::getTimestamp() const

Trenser.Zenvy/Trenser.Zenvy/models/Log.h

@@ -1,3 +1,9 @@
+/*
+File: Log.h
+* Description : Represents a log entry containing a timestamp and an associated message.
+* Author : Trenser
+* Created : 01-Apr-2026
+*/
 #pragma once
 #include <string>
 #include "Timestamp.h"

Trenser.Zenvy/Trenser.Zenvy/models/Notification.cpp

@@ -1,5 +1,13 @@
+/*
+File: Notification.cpp
+* Description : Represents an employee notification with message and status details.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "Notification.h"
 
+int Notification::m_uid = 0;
+
 const std::string& Notification::getNotificationId() const
 {
     return m_id;

Trenser.Zenvy/Trenser.Zenvy/models/Notification.h

@@ -1,3 +1,9 @@
+/*
+File: Notification.h
+* Description : Represents an employee notification with message and status details.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
 #include "Enums.h"
@@ -6,18 +12,18 @@
 class Notification
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_employeeId;
     std::string m_message;
     util::Timestamp m_timestamp;
     Enums::NotificationStatus m_notificationStatus;
 public:
-    Notification() : m_id(""), m_employeeId(""), m_message(""), m_timestamp(), m_notificationStatus(Enums::NotificationStatus::UNREAD) {}
-    Notification(const std::string& id,
-        const std::string& employeeId,
+    Notification() : m_id("NF" + std::to_string(++m_uid)), m_employeeId(""), m_message(""), m_timestamp(), m_notificationStatus(Enums::NotificationStatus::UNREAD) {}
+    Notification(const std::string& employeeId,
         const std::string& message,
         Enums::NotificationStatus notificationStatus)
-        : m_id(id), m_employeeId(employeeId), m_message(message), m_notificationStatus(notificationStatus) {}
+        : m_id("NF" + std::to_string(++m_uid)), m_employeeId(employeeId), m_message(message), m_notificationStatus(notificationStatus) {}
     const std::string& getNotificationId() const;
     const std::string& getEmployeeId() const;
     const std::string& getNotificationMessage() const;

Trenser.Zenvy/Trenser.Zenvy/models/Payroll.cpp

@@ -1,10 +1,53 @@
+/*
+File: Payroll.cpp
+* Description : Stores payroll and salary breakdown details for an employee.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
+#include <sstream>
 #include "Payroll.h"
+#include "StringHelper.h"
+#include "Factory.h"
 
-const std::string& Payroll::getPayrollId() const
+int Payroll::m_uid = 0;
+
+Payroll::Payroll(const std::string& id,
+    const std::string& employeeId,
+    double basicSalary,
+    double houseRentAllowance,
+    double foodAllowance,
+    double employeePFContribution,
+    double employerPFContribution)
+    : m_id(id),
+    m_employeeId(employeeId),
+    m_basicSalary(basicSalary),
+    m_houseRentAllowance(houseRentAllowance),
+    m_foodAllowance(foodAllowance),
+    m_employeePFContribution(employeePFContribution),
+    m_employerPFContribution(employerPFContribution)
+{
+    int idNumber = util::extractNumber(m_id);
+    if (idNumber > m_uid)
+    {
+        m_uid = idNumber;
+    }
+}
+
+const std::string& Payroll::getId() const
 {
     return m_id;
 }
 
+const std::string& Payroll::getEmployeeId() const
+{
+    return m_employeeId;
+}
+
+void Payroll::setEmployeeId(const std::string& employeeId)
+{
+    m_employeeId = employeeId;
+}
+
 double Payroll::getBasicSalary() const
 {
     return m_basicSalary;
@@ -30,9 +73,14 @@ double Payroll::getEmployerPFContribution() const
     return m_employerPFContribution;
 }
 
-void Payroll::setPayrollID(const std::string& id)
+std::string Payroll::getHeaders()
 {
-    m_id = id;
+    return "PayrollId,EmployeeId,BasicSalary,HouseRentAllowance,FoodAllowance,EmployeePFContribution,EmployerPFContribution";
+}
+
+void Payroll::setBasicSalary(double basicSalary)
+{
+    m_basicSalary = basicSalary;
 }
 
 void Payroll::setHouseRentAllowance(double value)
@@ -54,3 +102,67 @@ void Payroll::setEmployerPFContribution(double value)
 {
     m_employerPFContribution = value;
 }
+
+/*
+Function: serialize
+Description: Converts the payroll object into a comma-separated string.
+Parameters:
+    None
+Returns:
+    A serialized string representation of the payroll.
+*/
+std::string Payroll::serialize() const
+{
+    std::ostringstream serializedPayroll;
+    serializedPayroll << m_id << ','
+        << m_employeeId << ','
+        << m_basicSalary << ','
+        << m_houseRentAllowance << ','
+        << m_foodAllowance << ','
+        << m_employeePFContribution << ','
+        << m_employerPFContribution;
+    return serializedPayroll.str();
+}
+
+/*
+Function: deserialize
+Description: Creates a Payroll object from a serialized comma-separated string.
+Parameters:
+    record - Serialized payroll data.
+Returns:
+    Pointer to a Payroll object.
+*/
+Payroll* Payroll::deserialize(const std::string& record)
+{
+    std::string id, employeeId;
+    std::string basicSalaryString, houseRentAllowanceString, foodAllowanceString, employeePFString, employerPFString;
+    std::istringstream serializedPayroll(record);
+    std::getline(serializedPayroll, id, ',');
+    std::getline(serializedPayroll, employeeId, ',');
+    std::getline(serializedPayroll, basicSalaryString, ',');
+    std::getline(serializedPayroll, houseRentAllowanceString, ',');
+    std::getline(serializedPayroll, foodAllowanceString, ',');
+    std::getline(serializedPayroll, employeePFString, ',');
+    std::getline(serializedPayroll, employerPFString, ',');
+    try
+    {
+        double basicSalary = std::stod(basicSalaryString);
+        double houseRentAllowance = std::stod(houseRentAllowanceString);
+        double foodAllowance = std::stod(foodAllowanceString);
+        double employeePFContribution = std::stod(employeePFString);
+        double employerPFContribution = std::stod(employerPFString);
+        return Factory::getObject<Payroll>(
+            id,
+            employeeId,
+            basicSalary,
+            houseRentAllowance,
+            foodAllowance,
+            employeePFContribution,
+            employerPFContribution
+        );
+    }
+    catch (...)
+	{
+        throw std::runtime_error("Failed to deserialize Payroll object");
+    }
+}

Trenser.Zenvy/Trenser.Zenvy/models/Payroll.h

@@ -1,33 +1,65 @@
+/*
+File: Payroll.h
+* Description : Stores payroll and salary breakdown details for an employee.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
+#include "Timestamp.h"
 
 class Payroll
 {
 private:
+    static int m_uid;
     std::string m_id;
+    std::string m_employeeId;
     double m_basicSalary;
     double m_houseRentAllowance;
     double m_foodAllowance;
     double m_employeePFContribution;
     double m_employerPFContribution;
+    util::Timestamp m_timestamp;
 public:
-    Payroll() : m_id(""), m_basicSalary(0.0), m_houseRentAllowance(0.0), m_foodAllowance(0.0), m_employeePFContribution(0.0), m_employerPFContribution(0.0) {}
-    Payroll(const std::string& id,
-        double basicSalary,
+    Payroll()
+        : m_id("PR" + std::to_string(++m_uid)),
+        m_basicSalary(0.0),
+        m_houseRentAllowance(0.0),
+        m_foodAllowance(0.0),
+        m_employeePFContribution(0.0),
+        m_employerPFContribution(0.0) {}
+    Payroll(double basicSalary,
         double houseRentAllowance,
         double foodAllowance,
         double employeePFContribution,
         double employerPFContribution)
-        : m_id(id), m_basicSalary(basicSalary), m_houseRentAllowance(houseRentAllowance), m_foodAllowance(foodAllowance), m_employeePFContribution(employeePFContribution), m_employerPFContribution(employerPFContribution) {}
-    const std::string& getPayrollId() const;
+        : m_id("PR" + std::to_string(++m_uid)),
+        m_basicSalary(basicSalary),
+        m_houseRentAllowance(houseRentAllowance),
+        m_foodAllowance(foodAllowance),
+        m_employeePFContribution(employeePFContribution),
+        m_employerPFContribution(employerPFContribution) {}
+    Payroll(const std::string& id,
+        const std::string& employeeId,
+        double basicSalary,
+        double houseRentAllowance,
+        double foodAllowance,
+        double employeePFContribution,
+        double employerPFContribution);
+    const std::string& getId() const;
+    const std::string& getEmployeeId() const;
+    void setEmployeeId(const std::string&);
     double getBasicSalary() const;
     double getHouseRentAllowance() const;
     double getFoodAllowance() const;
     double getEmployeePFContribution() const;
     double getEmployerPFContribution() const;
-    void setPayrollID(const std::string& id);
-    void setHouseRentAllowance(double value);
-    void setFoodAllowance(double value);
-    void setEmployeePFContribution(double value);
-    void setEmployerPFContribution(double value);
+    static std::string getHeaders();
+    void setBasicSalary(double);
+    void setHouseRentAllowance(double);
+    void setFoodAllowance(double);
+    void setEmployeePFContribution(double);
+    void setEmployerPFContribution(double);
+    std::string serialize() const;
+    static Payroll* deserialize(const std::string&);
 };

Trenser.Zenvy/Trenser.Zenvy/models/Payslip.cpp

@@ -1,6 +1,33 @@
+/*
+File: Payslip.cpp
+* Description : Models a payslip entity that stores salary information.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
+#include <sstream>
 #include "Payslip.h"
+#include "StringHelper.h"
+#include "Factory.h"
 
-const std::string& Payslip::getPayslipId() const
+int Payslip::m_uid = 0;
+
+Payslip::Payslip(const std::string& id,
+    const std::string& employeeId,
+    double salary,
+    util::Timestamp timestamp)
+    : m_id(id),
+    m_employeeId(employeeId),
+    m_salary(salary),
+    m_timestamp(timestamp)
+{
+    int idNumber = util::extractNumber(m_id);
+    if (idNumber > m_uid)
+    {
+        m_uid = idNumber;
+    }
+}
+
+const std::string& Payslip::getId() const
 {
     return m_id;
 }
@@ -19,3 +46,71 @@ void Payslip::setSalary(double salary)
 {
     m_salary = salary;
 }
+
+const util::Timestamp& Payslip::getTimestamp() const
+{
+    return m_timestamp;
+}
+
+const std::string& Payslip::getEmployeeId() const
+{
+    return m_employeeId;
+}
+
+std::string Payslip::getHeaders()
+{
+    return "PayslipId,EmployeeId,Salary,Timestamp";
+}
+
+/*
+Function: serialize
+Description: Converts the payslip object into a comma-separated string.
+Parameters:
+    None
+Returns:
+    A serialized string representation of the payslip.
+*/
+std::string Payslip::serialize() const
+{
+    std::ostringstream serializedPayslip;
+    serializedPayslip << m_id << ','
+        << m_employeeId << ','
+        << m_salary << ','
+        << m_timestamp.toString();
+    return serializedPayslip.str();
+}
+
+/*
+Function: deserialize
+Description: Creates a Payslip object from a serialized comma-separated string.
+Parameters:
+    record - Serialized payslip data.
+Returns:
+    Pointer to a Payslip object.
+*/
+Payslip* Payslip::deserialize(const std::string& record)
+{
+    std::string id, employeeId, timestampString;
+    std::string salaryString;
+    std::istringstream serializedPayslip(record);
+    std::getline(serializedPayslip, id, ',');
+    std::getline(serializedPayslip, employeeId, ',');
+    std::getline(serializedPayslip, salaryString, ',');
+    std::getline(serializedPayslip, timestampString, ',');
+
+    try
+    {
+        double salary = std::stod(salaryString);
+        util::Timestamp timestamp = util::Timestamp::fromString(timestampString);
+        return Factory::getObject<Payslip>(
+            id,
+            employeeId,
+            salary,
+            timestamp
+        );
+    }
+    catch (...)
+	{
+        throw std::runtime_error("Failed to deserialize Payslip object");
+    }
+}

Trenser.Zenvy/Trenser.Zenvy/models/Payslip.h

@@ -1,16 +1,35 @@
+/*
+File: Payslip.h
+* Description : Models a payslip entity that stores salary information.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
+#include "Timestamp.h"
 
 class Payslip
 {
 private:
+    static int m_uid;
     std::string m_id;
+    std::string m_employeeId;
     double m_salary;
+    util::Timestamp m_timestamp;
 public:
-    Payslip() : m_id(""), m_salary(0.0) {}
-    Payslip(const std::string& id, double salary) : m_id(id), m_salary(salary) {}
-    const std::string& getPayslipId() const;
+    Payslip() : m_id("PS" + std::to_string(++m_uid)), m_employeeId(""), m_salary(0.0) {}
+    Payslip(const double salary, const std::string& employeeId) : m_id("PS" + std::to_string(++m_uid)), m_employeeId(employeeId), m_salary(salary) {}
+    Payslip(const std::string& id,
+        const std::string& employeeId,
+        double salary,
+        util::Timestamp timestamp);
+    const std::string& getId() const;
     double getSalary() const;
+    static std::string getHeaders();
     void setPayslipId(const std::string& id);
     void setSalary(double salary);
+    const util::Timestamp& getTimestamp() const;
+    const std::string& getEmployeeId() const;
+    std::string serialize() const;
+    static Payslip* deserialize(const std::string&);
 };

Trenser.Zenvy/Trenser.Zenvy/models/Room.cpp

@@ -1,5 +1,13 @@
+/*
+File: Room.cpp
+* Description : Models a room entity that maintains room details and manages its bookings.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "Room.h"
 
+int Room::m_uid = 0;
+
 const std::string& Room::getRoomId() const
 {
     return m_id;
@@ -25,7 +33,15 @@ void Room::setRoomName(const std::string& name)
     m_name = name;
 }
 
-void Room::addBooking(std::shared_ptr<Booking> booking)
+/*
+Function: addBooking
+Description: Adds a valid booking to the room’s booking list using the booking ID as the key.
+Parameters: 
+    booking - A pointer to a Booking object to be added to the room.
+Returns:
+    void
+*/
+void Room::addBooking(Booking* booking)
 {
     if (booking)
     {

Trenser.Zenvy/Trenser.Zenvy/models/Room.h

@@ -1,23 +1,29 @@
+/*
+File: Room.h
+* Description : Models a room entity that maintains room details and manages its bookings.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
 #include <map>
-#include <memory>
 #include "Booking.h"
-using bookingMap = std::map<std::string, std::shared_ptr<Booking>>;
+using bookingMap = std::map<std::string, Booking*>;
 
 class Room
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_name;
     bookingMap m_bookings;
 public:
-    Room() : m_id(""), m_name("") {}
-    Room(const std::string& id, const std::string& name) : m_id(id), m_name(name) {}
+    Room() : m_id("RM" + std::to_string(++m_uid)), m_name("") {}
+    Room(const std::string& name) : m_id("RM" + std::to_string(++m_uid)), m_name(name) {}
     const std::string& getRoomId() const;
     const std::string& getRoomName() const;
     const bookingMap& getBookings() const;
     void setRoomId(const std::string& id);
     void setRoomName(const std::string& name);
-    void addBooking(std::shared_ptr<Booking> booking);
+    void addBooking(Booking* booking);
 };

Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.cpp

@@ -1 +1,7 @@
+/*
+File: TalentExecutive.cpp
+* Description : Represents information related to a talent executive in the system.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "TalentExecutive.h"

Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.h

@@ -1,7 +1,39 @@
+/*
+File: TalentExecutive.h
+* Description : Represents information related to a talent executive in the system.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include "Employee.h"
 
 class TalentExecutive : public Employee
 {
+public:
+    TalentExecutive() = default;
+    TalentExecutive(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+    ) :Employee(name, phone, email, Enums::EmployeeType::TALENT_ACQUISITION, payroll) {};
+    TalentExecutive(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::TALENT_ACQUISITION,
+            accountStatus) {
+    }
+    ~TalentExecutive() = default;
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/Team.cpp

@@ -1,5 +1,13 @@
+/*
+File: Team.cpp
+* Description : Models a team entity that maintains team identity, leadership, employee list, and size limitations.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "Team.h"
 
+int Team::m_uid = 0;
+
 const std::string& Team::getTeamId() const
 {
     return m_id;
@@ -10,7 +18,7 @@ const std::string& Team::getTeamName() const
     return m_name;
 }
 
-std::shared_ptr<Employee> Team::getTeamLead() const
+Employee* Team::getTeamLead() const
 {
     return m_lead;
 }
@@ -35,7 +43,7 @@ void Team::setTeamName(const std::string& name)
     m_name = name;
 }
 
-void Team::setTeamLead(std::shared_ptr<Employee> lead)
+void Team::setTeamLead(Employee* lead)
 {
     m_lead = lead;
 }

Trenser.Zenvy/Trenser.Zenvy/models/Team.h

@@ -1,34 +1,40 @@
+/*
+File: Team.h
+* Description : Models a team entity that maintains team identity, leadership, employee list, and size limitations.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
 #include <map>
-#include <memory>
 #include "Employee.h"
-using employeeMap = std::map<std::string, std::shared_ptr<Employee>>;
+using employeeMap = std::map<std::string, Employee*>;
 
 class Team
 {
 private:
+    static int m_uid;
     std::string m_id;
     std::string m_name;
-    std::shared_ptr<Employee> m_lead;
+    Employee* m_lead;
     employeeMap m_employees;
     int m_maximumNumberOfEmployees;
 public:
-    Team() : m_id(""), m_name(""), m_lead(nullptr), m_maximumNumberOfEmployees(0) {}
-    Team(const std::string& id,
+    Team() : m_id("TM" + std::to_string(++m_uid)), m_name(""), m_lead(nullptr), m_maximumNumberOfEmployees(0) {}
+    Team(
         const std::string& name,
-        std::shared_ptr<Employee> lead,
+        Employee* lead,
         int maximumNumberOfEmployees)
-        : m_id(id), m_name(name), m_lead(lead), m_maximumNumberOfEmployees(maximumNumberOfEmployees) {
+        : m_id("TM" + std::to_string(++m_uid)), m_name(name), m_lead(lead), m_maximumNumberOfEmployees(maximumNumberOfEmployees) {
     }
     const std::string& getTeamId() const;
     const std::string& getTeamName() const;
-    std::shared_ptr<Employee> getTeamLead() const;
+    Employee* getTeamLead() const;
     const employeeMap& getEmployeesInTeam() const;
     int getMaximumNumberOfEmployeesInTeam() const;
     void setTeamId(const std::string& id);
     void setTeamName(const std::string& name);
-    void setTeamLead(std::shared_ptr<Employee> lead);
+    void setTeamLead(Employee* lead);
     void setEmployeesInTeam(const employeeMap& employees);
     void setMaximumNumberOfEmployeesInTeam(int maximumNumberOfEmployees);
 };

Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.cpp

@@ -1 +1,7 @@
+/*
+File: TeamExecutive.cpp
+* Description : Represents information related to a team executive within the system.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "TeamExecutive.h"

Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.h

@@ -1,7 +1,38 @@
+/*
+File: TeamExecutive.h
+* Description : Represents information related to a team executive within the system.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include "Employee.h"
 
 class TeamExecutive : public Employee
 {
+public:
+    TeamExecutive() = default;
+    TeamExecutive(
+        const std::string& name,
+        const std::string& phone,
+        const std::string& email,
+        Payroll* payroll
+    ) :Employee(name, phone, email, Enums::EmployeeType::TEAM, payroll) {};
+    TeamExecutive(const std::string& id,
+        const std::string& name,
+        const std::string& phone,
+        const std::string& password,
+        const std::string& email,
+        const std::string& teamId,
+        Enums::TeamStatus teamStatus,
+        Enums::AccountStatus accountStatus)
+        : Employee(id,
+            name,
+            phone,
+            password,
+            email,
+            teamId,
+            teamStatus,
+            Enums::EmployeeType::TEAM,
+            accountStatus) {}
+    ~TeamExecutive() = default;
 };
-

Trenser.Zenvy/Trenser.Zenvy/models/Ticket.cpp

@@ -1,5 +1,13 @@
+/*
+File: Ticket.cpp
+* Description : Represents a support ticket with its associated details and status.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #include "Ticket.h"
 
+int Ticket::m_uid = 0;
+
 const std::string& Ticket::getTicketId() const
 {
     return m_id;

Trenser.Zenvy/Trenser.Zenvy/models/Ticket.h

@@ -1,3 +1,9 @@
+/*
+File: Ticket.h
+* Description : Represents a support ticket with its associated details and status.
+* Author : Trenser
+* Created : 31-Mar-2026
+*/
 #pragma once
 #include <string>
 #include "Enums.h"
@@ -5,19 +11,20 @@
 class Ticket
 {
 private:
+    static int m_uid;
     std::string m_id;
     Enums::TicketType m_type;
     std::string m_description;
     Enums::TicketStatus m_status;
     std::string m_employeeId;
 public:
-    Ticket() : m_id(""), m_type(Enums::TicketType::UNKNOWN), m_description(""), m_status(Enums::TicketStatus::OPEN), m_employeeId("") {}
-    Ticket(const std::string& id,
+    Ticket() : m_id("TKT" + std::to_string(++m_uid)), m_type(Enums::TicketType::UNKNOWN), m_description(""), m_status(Enums::TicketStatus::OPEN), m_employeeId("") {}
+    Ticket(
         Enums::TicketType type,
         const std::string& description,
         const std::string& employeeId,
         Enums::TicketStatus status)
-        : m_id(id), m_type(type), m_description(description), m_status(status), m_employeeId(employeeId) {}
+        : m_id("TKT" + std::to_string(++m_uid)), m_type(type), m_description(description), m_status(status), m_employeeId(employeeId) {}
     const std::string& getTicketId() const;
     Enums::TicketType getTicketType() const;
     const std::string& getDescription() const;

Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 06-Apr-2026
  */
-
 #include "ApplicationConfig.h"

Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 06-Apr-2026
  */
-
 #pragma once
 
 namespace Config
@@ -13,4 +12,36 @@ namespace Config
 	{
 		constexpr const char* DEFAULT_PASSWORD = "password";
 	}
+
+	namespace Payroll
+	{
+		constexpr double SENIOR_BASIC_SALARY = 80000.0;
+		constexpr double SENIOR_HOUSE_RENT_ALLOWANCE = 32000.0;
+		constexpr double SENIOR_FOOD_ALLOWANCE = 3000.0;
+		constexpr double SENIOR_EMPLOYEE_PF_CONTRIBUTION = 9600.0;
+		constexpr double SENIOR_EMPLOYER_PF_CONTRIBUTION = 9600.0;
+		constexpr double JUNIOR_BASIC_SALARY = 25000.0;
+		constexpr double JUNIOR_HOUSE_RENT_ALLOWANCE = 10000.0;
+		constexpr double JUNIOR_FOOD_ALLOWANCE = 1500.0;
+		constexpr double JUNIOR_EMPLOYEE_PF_CONTRIBUTION = 3000.0;
+		constexpr double JUNIOR_EMPLOYER_PF_CONTRIBUTION = 3000.0;
+		constexpr double HR_MANAGER_BASIC_SALARY = 60000.0;
+		constexpr double HR_MANAGER_HOUSE_RENT_ALLOWANCE = 24000.0;
+		constexpr double HR_MANAGER_FOOD_ALLOWANCE = 2500.0;
+		constexpr double HR_MANAGER_EMPLOYEE_PF_CONTRIBUTION = 7200.0;
+		constexpr double HR_MANAGER_EMPLOYER_PF_CONTRIBUTION = 7200.0;
+		constexpr double EXECUTIVE_BASIC_SALARY = 45000.0;
+		constexpr double EXECUTIVE_HOUSE_RENT_ALLOWANCE = 18000.0;
+		constexpr double EXECUTIVE_FOOD_ALLOWANCE = 2000.0;
+		constexpr double EXECUTIVE_EMPLOYEE_PF_CONTRIBUTION = 5400.0;
+		constexpr double EXECUTIVE_EMPLOYER_PF_CONTRIBUTION = 5400.0;
+	}
+
+	namespace File
+	{
+		constexpr const char* EMPLOYEES_FILE = "files/Employee.csv";
+		constexpr const char* GENERAL_EMPLOYEES_FILE = "files/GeneralEmployee.csv";
+		constexpr const char* PAYROLL_FILE = "files/Payroll.csv";
+		constexpr const char* PAYSLIP_FILE = "files/Payslip.csv";
+	}
 }

Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Apr-2026
  */
-
 #include "AttendanceManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Apr-2026
  */
-
 #pragma once
 class AttendanceManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.cpp

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include <stdexcept>
 #include "AuthenticationManagementService.h"
 #include "ApplicationConfig.h"
@@ -32,6 +31,10 @@ AuthenticationDTO AuthenticationManagementService::login(const std::string& emai
 		{
 			if (employee.second->getEmployeePassword() == password)
 			{
+				if (employee.second->getEmployeeAccountStatus() == Enums::AccountStatus::INACTIVE)
+				{
+					throw std::runtime_error("Your account has been disabled! Please contact your Administrator.");
+				}
 				if (password == Config::Authentication::DEFAULT_PASSWORD)
 				{
 					loginStatus = Enums::LoginStatus::FIRST_LOGIN;
@@ -43,7 +46,7 @@ AuthenticationDTO AuthenticationManagementService::login(const std::string& emai
 				employeeType = employee.second->getEmployeeType();
 				if (employeeType == Enums::EmployeeType::GENERAL)
 				{
-                    std::shared_ptr<GeneralEmployee> generalEmployee = std::dynamic_pointer_cast<GeneralEmployee>(employee.second);
+                    GeneralEmployee* generalEmployee = dynamic_cast<GeneralEmployee*>(employee.second);
 					if (generalEmployee)
 					{
 						employeeDesignation = generalEmployee->getDesignation();
@@ -77,7 +80,7 @@ AuthenticationDTO AuthenticationManagementService::login(const std::string& emai
  */
 void AuthenticationManagementService::changePassword(const std::string& password)
 {
-    std::shared_ptr<Employee> authenticatedUser = m_dataStore.getAuthenticatedUser();
+    Employee* authenticatedUser = m_dataStore.getAuthenticatedEmployee();
     if (authenticatedUser)
     {
         authenticatedUser->setEmployeePassword(password);
@@ -99,10 +102,12 @@ void AuthenticationManagementService::changePassword(const std::string& password
  *    runtime_error if no user is currently logged in
  */
 void AuthenticationManagementService::logout() {
-	if (m_dataStore.getAuthenticatedUser()) {
-		m_dataStore.getAuthenticatedUser() = nullptr;
+	if (m_dataStore.getAuthenticatedEmployee()) 
+    {
+		m_dataStore.getAuthenticatedEmployee() = nullptr;
 	}
-	else {
+	else 
+    {
 		throw std::runtime_error("No user currently logged In...");
 	}
 }

Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 #include <string>
 #include <map>

Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "BookingManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class BookingManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.cpp

@@ -1,8 +0,0 @@
-/*
- * File: EmployeeManagementService.cpp
- * Description: Handle operations related to employees
- * Author: Trenser
- * Created: 30-Mar-2026
- */
-
-#include "EmployeeManagememtService.h"

Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.h

@@ -1,12 +0,0 @@
-/*
- * File: EmployeeManagementService.h
- * Description: Handle operations related to employees
- * Author: Trenser
- * Created: 30-Mar-2026
- */
-
-#pragma once
-class EmployeeManagememtService
-{
-};
-

Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagementService.cpp

@@ -0,0 +1,341 @@
+/*
+ * File: EmployeeManagementService.h
+ * Description: Provides services for managing employees, including creation, deactivation,
+ *              designation updates, profile modifications, searching, and retrieval of
+ *              shortlisted candidates.
+ * Author: Trenser
+ * Created: 07-Apr-2026
+ */
+#include <map>
+#include <algorithm>
+#include <stdexcept>
+#include "EmployeeManagementService.h"
+#include "Factory.h"
+#include "Validator.h"
+#include "AuthorizationHelper.h"
+#include "Enums.h"
+#include "HRManager.h"
+#include "ITExecutive.h"
+#include "TalentExecutive.h"
+#include "TeamExecutive.h"
+#include "FinanceExecutive.h"
+#include "GeneralEmployee.h"
+#include "FileManager.h"
+#include "ApplicationConfig.h"
+
+ /*
+  * Function: createEmployee
+  * Description: Creates a new employee of the specified type and designation, validates
+  *              email and phone, enforces authorization, and associates payroll.
+  * Parameters:
+  *    employeeType - type of employee (HR, IT, Finance, Team, Talent Acquisition, General)
+  *    employeeDesignation - designation for general employees (Junior, Senior)
+  *    email - employee email address
+  *    name - employee name
+  *    phone - employee phone number
+  * Returns:
+  *    None
+  */
+void EmployeeManagementService::createEmployee(Enums::EmployeeType employeeType, Enums::EmployeeDesignation employeeDesignation, const std::string& email, const std::string& name, const std::string& phone)
+{
+	auto& employees = m_dataStore.getEmployees();
+	Employee* authenticatedEmployee = m_dataStore.getAuthenticatedEmployee();
+	if (!authenticatedEmployee)
+	{
+		throw std::runtime_error("No authenticated user");
+	}
+	Enums::EmployeeType authenticatedEmployeeType = authenticatedEmployee->getEmployeeType();
+	Employee* employee = nullptr;
+	Payroll* payroll = nullptr;
+	if (employeeType != Enums::EmployeeType::GENERAL && util::hasActiveEmployeeOfType(employeeType, employees))
+	{
+		throw std::runtime_error("Cannot create more than one employee of type " + Enums::getEmployeeTypeString(employeeType));
+	}
+	if (!util::isEmailValid(email))
+	{
+		throw std::runtime_error("Invalid Email");
+	}
+	if (!util::isPhoneNumberValid(phone))
+	{
+		throw std::runtime_error("Invalid Phone");
+	}
+	if (util::isEmailDuplicate(email, employees))
+	{
+		throw std::runtime_error("Duplicate Email");
+	}
+	if (util::isPhoneDuplicate(phone, employees))
+	{
+		throw std::runtime_error("Duplicate Phone Number!");
+	}
+	switch (employeeType)
+	{
+	case Enums::EmployeeType::HR:
+		util::enforceAuthorization(authenticatedEmployeeType, Enums::EmployeeType::ADMIN);
+		payroll = Factory::getObject<Payroll>(Config::Payroll::HR_MANAGER_BASIC_SALARY,
+			Config::Payroll::HR_MANAGER_HOUSE_RENT_ALLOWANCE,
+			Config::Payroll::HR_MANAGER_FOOD_ALLOWANCE,
+			Config::Payroll::HR_MANAGER_EMPLOYEE_PF_CONTRIBUTION,
+			Config::Payroll::HR_MANAGER_EMPLOYER_PF_CONTRIBUTION);
+		employee = Factory::getObject<HRManager>(name, phone, email, payroll);
+		break;
+	case Enums::EmployeeType::IT:
+	case Enums::EmployeeType::FINANCE:
+	case Enums::EmployeeType::TEAM:
+	case Enums::EmployeeType::TALENT_ACQUISITION:
+		util::enforceAuthorization(authenticatedEmployeeType, Enums::EmployeeType::ADMIN, Enums::EmployeeType::HR);
+		payroll = Factory::getObject<Payroll>(Config::Payroll::EXECUTIVE_BASIC_SALARY,
+			Config::Payroll::EXECUTIVE_HOUSE_RENT_ALLOWANCE,
+			Config::Payroll::EXECUTIVE_FOOD_ALLOWANCE,
+			Config::Payroll::EXECUTIVE_EMPLOYEE_PF_CONTRIBUTION,
+			Config::Payroll::EXECUTIVE_EMPLOYER_PF_CONTRIBUTION);
+		switch (employeeType)
+		{
+		case Enums::EmployeeType::IT:
+			employee = Factory::getObject<ITExecutive>(name, phone, email, payroll);
+			break;
+		case Enums::EmployeeType::FINANCE:
+			employee = Factory::getObject<FinanceExecutive>(name, phone, email, payroll);
+			break;
+		case Enums::EmployeeType::TEAM:
+			employee = Factory::getObject<TeamExecutive>(name, phone, email, payroll);
+			break;
+		case Enums::EmployeeType::TALENT_ACQUISITION:
+			employee = Factory::getObject <TalentExecutive> (name, phone, email, payroll);
+			break;
+		}
+		break;
+	case Enums::EmployeeType::GENERAL:
+		util::enforceAuthorization(authenticatedEmployeeType, Enums::EmployeeType::ADMIN, Enums::EmployeeType::HR);
+		switch (employeeDesignation)
+		{
+		case Enums::EmployeeDesignation::JUNIOR:
+			payroll = Factory::getObject<Payroll>(Config::Payroll::JUNIOR_BASIC_SALARY,
+				Config::Payroll::JUNIOR_HOUSE_RENT_ALLOWANCE,
+				Config::Payroll::JUNIOR_FOOD_ALLOWANCE,
+				Config::Payroll::JUNIOR_EMPLOYEE_PF_CONTRIBUTION,
+				Config::Payroll::JUNIOR_EMPLOYER_PF_CONTRIBUTION);
+			break;
+		case Enums::EmployeeDesignation::SENIOR:
+			payroll = Factory::getObject<Payroll>(Config::Payroll::SENIOR_BASIC_SALARY,
+				Config::Payroll::SENIOR_HOUSE_RENT_ALLOWANCE,
+				Config::Payroll::SENIOR_FOOD_ALLOWANCE,
+				Config::Payroll::SENIOR_EMPLOYEE_PF_CONTRIBUTION,
+				Config::Payroll::SENIOR_EMPLOYER_PF_CONTRIBUTION);
+			break;
+		default:
+			throw std::runtime_error("Invalid General Employee Designation");
+		}
+		employee = Factory::getObject<GeneralEmployee>(name, phone, email, payroll, employeeDesignation);
+		break;
+	default:
+		throw std::runtime_error("Invalid Employee Type");
+	}
+	payroll->setEmployeeId(employee->getId());
+	m_dataStore.getPayrolls().emplace(std::make_pair(payroll->getId(), payroll));
+	m_dataStore.getEmployees().emplace(std::make_pair(employee->getId(), employee));
+}
+
+/*
+ * Function: deactivateEmployee
+ * Description: Deactivates an employee account by setting its status to INACTIVE.
+ *              Prevents deactivation of Admin accounts.
+ * Parameters:
+ *    id - unique identifier of the employee
+ * Returns:
+ *    bool - true if deactivation succeeded, false otherwise
+ */
+bool EmployeeManagementService::deactivateEmployee(const std::string& id)
+{
+	auto& authenticatedEmployee = m_dataStore.getAuthenticatedEmployee();
+	util::enforceAuthorization(authenticatedEmployee->getEmployeeType(), Enums::EmployeeType::ADMIN, Enums::EmployeeType::HR);
+	auto& employee = m_dataStore.getEmployees();
+	auto iterator = employee.find(id);
+	if (iterator == employee.end())
+	{
+		return false;
+	}
+	if (iterator->second->getEmployeeType() == Enums::EmployeeType::ADMIN)
+	{
+		throw std::runtime_error("Cannot deactivate Admin Account");
+	}
+	iterator->second->setEmployeeAccountStatus(Enums::AccountStatus::INACTIVE);
+	return true;
+}
+
+ /*
+ * Function: updateDesignation
+ * Description: Updates the designation of a general employee.
+ * Parameters:
+ *    id - unique identifier of the employee
+ *    designation - new designation to assign
+ * Returns:
+ *    bool - true if update succeeded, false otherwise
+ */
+bool EmployeeManagementService::updateDesignation(const std::string& id, Enums::EmployeeDesignation designation)
+{
+	auto& authenticatedEmployee = m_dataStore.getAuthenticatedEmployee();
+	util::enforceAuthorization(authenticatedEmployee->getEmployeeType(), Enums::EmployeeType::ADMIN, Enums::EmployeeType::HR);
+	std::map<std::string, Employee*> employees = m_dataStore.getEmployees();
+	auto employeeIterator = employees.find(id);
+	if (employeeIterator == employees.end())
+	{
+		return false;
+	}
+	auto generalEmployee = dynamic_cast<GeneralEmployee*>((*employeeIterator).second);
+	if (generalEmployee)
+	{
+		generalEmployee->setDesignation(designation);
+	}
+	return true;
+}
+
+/*
+ * Function: getCurrentEmployee
+ * Description: Retrieves the currently authenticated employee from the DataStore.
+ * Parameters:
+ *    None
+ * Returns:
+ *    const Employee* - pointer to the current employee
+ */
+const Employee* EmployeeManagementService::getCurrentEmployee()
+{
+	return m_dataStore.getAuthenticatedEmployee();
+}
+
+/*
+ * Function: updateProfile
+ * Description: Updates the name and phone number of the currently authenticated employee.
+ * Parameters:
+ *    name - new employee name
+ *    phone - new employee phone number
+ * Returns:
+ *    None
+ */
+void EmployeeManagementService::updateProfile(const std::string& name,const std::string& phone)
+{
+	Employee* employee = m_dataStore.getAuthenticatedEmployee();
+	employee->setEmployeeName(name);
+	employee->setEmployeePhone(phone);
+}
+
+/*
+ * Function: searchEmployee
+ * Description: Searches employees by name and returns matches along
+ *              with the type of the current authenticated employee.
+ * Parameters:
+ *    name - search string for employee name
+ * Returns:
+ *    pair<Enums::EmployeeType, vector<const Employee*>> - current user type and matching employees
+ */
+std::pair<Enums::EmployeeType, std::vector<const Employee*>> EmployeeManagementService::searchEmployee(const std::string& name)
+{
+    Employee* currentUser = m_dataStore.getAuthenticatedEmployee();
+    Enums::EmployeeType employeeType = currentUser->getEmployeeType();
+	employeeMap& employees = m_dataStore.getEmployees();
+	std::vector<const Employee*> employeeList;
+    if (employees.empty()) 
+    {
+        return std::make_pair(employeeType, employeeList);
+    }
+    for (const auto& employeePair : employees) {
+        const auto& employee = employeePair.second;
+        if (!employee)
+        {
+            continue;
+        }
+        std::string employeeName = employee->getEmployeeName();
+        std::transform(employeeName.begin(), employeeName.end(), employeeName.begin(), ::tolower);
+        std::string searchName = name;
+        std::transform(searchName.begin(), searchName.end(), searchName.begin(), ::tolower);
+        if (employeeName.find(searchName) != std::string::npos)
+        {
+            employeeList.push_back(employee);
+        }
+    }
+    return { employeeType, employeeList };
+}
+
+/*
+ * Function: getShorlistedCandidates
+ * Description: Retrieves candidates with status SHORTLISTED from the DataStore.
+ * Parameters:
+ *    None
+ * Returns:
+ *    vector<Candidate*> - list of shortlisted candidates
+ */
+std::vector<Candidate*> EmployeeManagementService::getShorlistedCandidates()
+{
+	candidateMap candidates = m_dataStore.getCandidates();
+	std::vector<Candidate*> shortlistedCandidates;
+	for (auto& candidate : candidates)
+	{
+		if (candidate.second->getCandidateStatus() == Enums::CandidateStatus::SHORTLISTED)
+		{
+			shortlistedCandidates.push_back(candidate.second);
+		}
+	}
+	return shortlistedCandidates;
+}
+
+/*
+ * Function: loadEmployees
+ * Description: Loads employees and general employees from FileManager into the DataStore.
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
+void EmployeeManagementService::loadEmployees()
+{
+	FileManager<Employee> employeeFileManager(Config::File::EMPLOYEES_FILE);
+	FileManager<GeneralEmployee> generalEmployeeFileManager(Config::File::GENERAL_EMPLOYEES_FILE);
+	bool isAdminFound = false;
+	auto& employees = m_dataStore.getEmployees();
+	auto employeesMap = employeeFileManager.load();
+	auto generalEmployeesMap = generalEmployeeFileManager.load();
+	employees.insert(employeesMap.begin(), employeesMap.end());
+	employees.insert(generalEmployeesMap.begin(), generalEmployeesMap.end());
+	for (auto& employeePair : employees)
+	{
+		if (employeePair.second->getEmployeeType() == Enums::EmployeeType::ADMIN)
+		{
+			isAdminFound = true;
+			break;
+		}
+	}
+	if (!isAdminFound)
+	{
+		auto admin = Factory::getObject<Admin>("Admin", "", "admin@trenser.com", nullptr);
+		employees.emplace(std::make_pair(admin->getId(), admin));
+	}
+}
+
+/*
+ * Function: saveEmployees
+ * Description: Saves employees and general employees from the DataStore into FileManager.
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
+void EmployeeManagementService::saveEmployees()
+{
+	FileManager<Employee> employeeFileManager(Config::File::EMPLOYEES_FILE);
+	FileManager<GeneralEmployee> generalEmployeeFileManager(Config::File::GENERAL_EMPLOYEES_FILE);
+	const auto& allEmployees = m_dataStore.getEmployees();
+	employeeMap employees;
+	std::map<std::string, GeneralEmployee*> generalEmployees;
+	for (auto& employeePair : allEmployees)
+	{
+		if (employeePair.second->getEmployeeType() == Enums::EmployeeType::GENERAL)
+		{
+			generalEmployees.emplace(employeePair.first, static_cast<GeneralEmployee*>(employeePair.second));
+		}
+		else
+		{
+			employees.emplace(employeePair);
+		}
+	}
+	employeeFileManager.save(employees);
+	generalEmployeeFileManager.save(generalEmployees);
+}

Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagementService.h

@@ -0,0 +1,81 @@
+/*
+ * File: EmployeeManagementService.h
+ * Description: Provides services for managing employees, including creation, deactivation,
+ *              designation updates, profile modifications, searching, and retrieval of
+ *              shortlisted candidates.
+ * Author: Trenser
+ * Created: 07-Apr-2026
+ */
+#pragma once
+#include <vector>
+#include <tuple>
+#include <algorithm>
+#include <utility>
+#include "DataStore.h"
+#include "Enums.h"
+#include "StringHelper.h"
+
+using Employees = std::vector<const Employee*>;
+
+class EmployeeManagementService
+{
+private:
+    DataStore& m_dataStore;
+public:
+    EmployeeManagementService() : m_dataStore(DataStore::getInstance()) {};
+    void createEmployee(Enums::EmployeeType, Enums::EmployeeDesignation, const std::string&, const std::string&, const std::string&);
+    bool deactivateEmployee(const std::string&);
+    bool updateDesignation(const std::string&, Enums::EmployeeDesignation);
+    void updateProfile(const std::string&, const std::string&);
+    std::pair<Enums::EmployeeType, std::vector<const Employee*>> searchEmployee(const std::string&);
+    const Employee* getCurrentEmployee();
+    std::vector<Candidate*> getShorlistedCandidates();
+    void loadEmployees();
+    void saveEmployees();
+
+     /*
+     * Function: getEmployees (template)
+     * Description: Retrieves active employees filtered by specified types. Excludes admin employees
+     *              if no filter is provided.
+     * Parameters:
+     *    types... - variadic list of employee types
+     * Returns:
+     *    Employees - vector of pointers to filtered employees
+     */
+    template<typename... Types>
+    Employees getEmployees(Types... types)
+    {
+        Employees filteredEmployees;
+        const auto& employees = m_dataStore.getEmployees();
+        std::vector<Enums::EmployeeType> filterTypes = { types... };
+        for (const auto& employeePair : employees)
+        {
+            const auto& employee = employeePair.second;
+            if (employee->getEmployeeAccountStatus() != Enums::AccountStatus::ACTIVE)
+                continue;
+            auto employeeType = employee->getEmployeeType();
+            if (filterTypes.empty())
+            {
+                if (employeeType == Enums::EmployeeType::ADMIN)
+                    continue;
+            }
+            else
+            {
+                if (std::find(filterTypes.begin(), filterTypes.end(), employeeType) == filterTypes.end())
+                    continue;
+            }
+            filteredEmployees.push_back(employee);
+        }
+        std::sort(
+            filteredEmployees.begin(),
+            filteredEmployees.end(),
+            [](const Employee* employeeOne,
+                const Employee* employeeTwo)
+            {
+                return util::extractNumber(employeeOne->getId()) <
+                    util::extractNumber(employeeTwo->getId());
+            }
+        );
+        return filteredEmployees;
+    }
+};

Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "LeaveManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class LeaveManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/LogService.cpp

@@ -4,16 +4,24 @@
  * Author: Trenser
  * Created: 01-Apr-2026
  */
-
 #include "LogService.h"
 #include "Log.h"
 #include "Factory.h"
 #include "DataStore.h"
 
+  /*
+  * Function: log
+  * Description: Creates a new log entry with the given message, assigns a timestamp,
+  *              and stores it in the DataStore.
+  * Parameters:
+  *    message - string containing the log message to be recorded
+  * Returns:
+  *    void - no return value
+  */
 void LogService::log(const std::string& message)
 {
 	DataStore& dataStore = DataStore::getInstance();
 	logMap& logs = dataStore.getLogs();
-	std::shared_ptr<Log> log = Factory::getObject<Log>(message);
+	Log* log = Factory::getObject<Log>(message);
 	logs.emplace(std::make_pair(log->getTimestamp(), log));
 }

Trenser.Zenvy/Trenser.Zenvy/services/LogService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 01-Apr-2026
  */
-
 #pragma once
 #include "Log.h"
 

Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "NotificationManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class NotificationManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.cpp

@@ -4,5 +4,206 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
+#include <stdexcept>
+#include <algorithm>
 #include "PayslipManagementService.h"
+#include "ApplicationConfig.h"
+#include "AuthorizationHelper.h"
+#include "Enums.h"
+#include "FileManager.h"
+#include "Factory.h"
+
+  /*
+  * Function: updateSalary
+  * Description: Updates the payroll details of a given employee, including salary components
+  *              and PF contributions.
+  * Parameters:
+  *    employeeId - unique identifier of the employee
+  *    basicSalary - basic salary of the employee
+  *    houseRentAllowance - HRA component
+  *    foodAllowance - food allowance component
+  *    employeePFContribution - employee PF contribution
+  *    employerPFContribution - employer PF contribution
+  * Returns:
+  *    void - throws runtime_error if employee not found or unauthorized
+  */
+void PayslipManagementService::updateSalary(const std::string& employeeId, double basicSalary, double houseRentAllowance, double foodAllowance, double employeePFContribution, double employerPFContribution)
+{
+	util::enforceAuthorization(m_dataStore.getAuthenticatedEmployee()->getEmployeeType(), Enums::EmployeeType::FINANCE);
+	auto employee = m_dataStore.getEmployees().find(employeeId);
+	if (employee != m_dataStore.getEmployees().end() && employee->second->getEmployeeType() != Enums::EmployeeType::ADMIN)
+	{
+		auto payroll = employee->second->getPayroll();
+		payroll->setBasicSalary(basicSalary);
+		payroll->setHouseRentAllowance(houseRentAllowance);
+		payroll->setFoodAllowance(foodAllowance);
+		payroll->setEmployeePFContribution(employeePFContribution);
+		payroll->setEmployerPFContribution(employerPFContribution);
+	}
+	else
+	{
+		throw std::runtime_error("Employee not found, unable to update the salary");
+	}
+}
+
+ /*
+ * Function: generatePayslips
+ * Description: Generates payslips for all employees for the current month and year.
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - creates and stores payslips in DataStore
+ */
+void PayslipManagementService::generatePayslips()
+{
+	util::enforceAuthorization(m_dataStore.getAuthenticatedEmployee()->getEmployeeType(), Enums::EmployeeType::FINANCE);
+	auto& employees = m_dataStore.getEmployees();
+	auto& payslips = m_dataStore.getPayslips();
+	util::Timestamp	currentTimestamp;
+	int currentMonth = currentTimestamp.getMonth();
+	int currentYear = currentTimestamp.getYear();
+	for (const auto& employeePair : employees)
+	{
+		auto& employee = employeePair.second;
+		if (employee->getEmployeeType() == Enums::EmployeeType::ADMIN)
+		{
+			continue;
+		}
+		auto& employeePayslips = employee->getEmployeePayslips();
+		auto payslipForTheMonth = std::find_if(employeePayslips.begin(), employeePayslips.end(),
+			[currentMonth, currentYear](const auto& payslipPair)
+			{
+				auto& payslip = payslipPair.second;
+				auto& timestamp = payslip->getTimestamp();
+				return (timestamp.getMonth() == currentMonth && timestamp.getYear() == currentYear);
+			}
+		);
+		if (payslipForTheMonth == employeePayslips.end())
+		{
+			auto payroll = employee->getPayroll();
+			double salary;
+			salary = payroll->getBasicSalary() + payroll->getFoodAllowance() + payroll->getHouseRentAllowance() - payroll->getEmployeePFContribution() - payroll->getEmployerPFContribution();
+			Payslip* payslip = Factory::getObject<Payslip>(salary, employee->getId());
+			employee->addPayslip(payslip);
+			payslips.emplace(payslip->getId(), payslip);
+		}
+	}
+}
+
+ /*
+ * Function: loadPayrolls
+ * Description: Loads payroll objects from persistent storage and associates them
+ *              with existing employees.
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - updates DataStore with loaded payrolls
+ */
+void PayslipManagementService::loadPayrolls()
+{
+	FileManager<Payroll> payrollFileManager(Config::File::PAYROLL_FILE);
+	auto& payrolls = m_dataStore.getPayrolls();
+	auto& employees = m_dataStore.getEmployees();
+	auto payrollObjects = payrollFileManager.load();
+	for (const auto& payrollPair : payrollObjects)
+	{
+		auto employeeIterator = employees.find(payrollPair.second->getEmployeeId());
+		if (employeeIterator == employees.end())
+		{
+			throw std::runtime_error("Payroll Object not associated with an existing employee");
+		}
+		employeeIterator->second->setEmployeePayroll(payrollPair.second);
+	}
+	payrolls.insert(payrollObjects.begin(), payrollObjects.end());
+}
+
+ /*
+ * Function: savePayrolls
+ * Description: Saves all payroll objects from DataStore into persistent storage.
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
+void PayslipManagementService::savePayrolls()
+{
+	FileManager<Payroll> payrollFileManager(Config::File::PAYROLL_FILE);
+	auto& payrolls = m_dataStore.getPayrolls();
+	payrollFileManager.save(payrolls);
+}
+
+ /*
+ * Function: getPayslipForMonth
+ * Description: Retrieves the payroll and payslip of a given employee for a specific
+ *              month and year.
+ * Parameters:
+ *    employeeId - unique identifier of the employee
+ *    year - year of the payslip
+ *    month - month of the payslip
+ * Returns:
+ *    pair<Payroll*, Payslip*> - payroll and payslip for the given month.
+ */
+std::pair<Payroll*, Payslip*> PayslipManagementService::getPayslipForMonth(const std::string& employeeId, int year, int month)
+{
+	auto& employees = m_dataStore.getEmployees();
+	auto employeeIterator = employees.find(employeeId);
+	if (employeeIterator == employees.end())
+	{
+		throw std::runtime_error("Employee not found!");
+	}
+	auto payroll = employeeIterator->second->getPayroll();
+	auto& payslips = employeeIterator->second->getEmployeePayslips();
+	for (const auto& payslipPair : payslips)
+	{
+		const auto& payslip = payslipPair.second;
+		{
+			if (payslip->getTimestamp().getYear() == year && payslip->getTimestamp().getMonth() == month)
+			{
+				return { payroll, payslip }; 
+			}
+		}
+	}
+	return { nullptr, nullptr };
+}
+
+ /*
+ * Function: loadPayslips
+ * Description: Loads payslip objects from FileManager and associates them
+ *              with existing employees.
+ * Parameters:
+ *    None
+ * Returns:
+ *    void - updates DataStore with loaded payslips
+ */
+void PayslipManagementService::loadPayslips()
+{
+	FileManager<Payslip> payslipFileManager(Config::File::PAYSLIP_FILE);
+	auto& payslips = m_dataStore.getPayslips();
+	auto& employees = m_dataStore.getEmployees();
+	auto payslipObjects = payslipFileManager.load();
+	for (const auto& payslipPair : payslipObjects)
+	{
+		auto employeeIterator = employees.find(payslipPair.second->getEmployeeId());
+		if (employeeIterator == employees.end())
+		{
+			throw std::runtime_error("Payslip Object not associated with an existing employee");
+		}
+		employeeIterator->second->addPayslip(payslipPair.second);
+	}
+	payslips.insert(payslipObjects.begin(), payslipObjects.end());
+}
+
+ /*
+ * Function: savePayslips
+ * Description: Saves all payslip objects from DataStore into FileManager.
+ * Parameters:
+ *    None
+ * Returns:
+ *    void
+ */
+void PayslipManagementService::savePayslips()
+{
+	FileManager<Payslip> payslipFileManager(Config::File::PAYSLIP_FILE);
+	auto& payslips = m_dataStore.getPayslips();
+	payslipFileManager.save(payslips);
+}

Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.h

@@ -4,9 +4,24 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
+#include <string>
+#include<stdexcept>
+#include"DataStore.h"
+
+using payslipMap = std::map<std::string, Payslip*>;
+
 class PayslipManagementService
 {
+private:
+	DataStore& m_dataStore;
+public:
+	PayslipManagementService() : m_dataStore(DataStore::getInstance()) {};
+	void updateSalary(const std::string&, double, double, double, double, double);
+	void generatePayslips();
+	std::pair<Payroll*, Payslip*>getPayslipForMonth(const std::string&, int, int);
+	void loadPayrolls();
+	void savePayrolls();
+	void loadPayslips();
+	void savePayslips();
 };
-

Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "TalentAcquisitionManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class TalentAcquisitionManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "TeamManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class TeamManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.cpp

@@ -4,5 +4,4 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #include "TicketManagementService.h"

Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.h

@@ -4,7 +4,6 @@
  * Author: Trenser
  * Created: 30-Mar-2026
  */
-
 #pragma once
 class TicketManagementService
 {

Trenser.Zenvy/Trenser.Zenvy/utilities/AuthorizationHelper.cpp

@@ -0,0 +1 @@
+#include "AuthorizationHelper.h"

Trenser.Zenvy/Trenser.Zenvy/utilities/AuthorizationHelper.h

@@ -0,0 +1,67 @@
+/*
+ * File: AuthorizationHelper.h
+ * Description : Provides utility functions to check and enforce authorization
+ *               based on allowed employee types.
+ * Author : Trenser
+ * Created : 07-Apr-2026
+ */
+#pragma once
+#include <stdexcept>
+#include "Enums.h"
+
+namespace util
+{
+     /*
+     * Function: isAuthorized
+     * Description: Checks if the current employee type matches the specified allowed type.
+     * Parameters:
+     *    current - the employee type of the current user
+     *    first   - the allowed employee type to compare against
+     * Returns:
+     *    bool - true if current matches the allowed type, false otherwise
+     */
+    inline bool isAuthorized(Enums::EmployeeType current, Enums::EmployeeType first)
+    {
+        return current == first;
+    }
+
+     /*
+     * Function: isAuthorized
+     * Description: Checks if the current employee type matches any of the specified allowed types.
+     * Parameters:
+     *    current - the employee type of the current user
+     *    first   - the first allowed employee type
+     *    rest - additional allowed employee types
+     * Returns:
+     *    bool - true if current matches any of the allowed types, false otherwise
+     */
+    template <typename... Rest>
+    inline bool isAuthorized(Enums::EmployeeType current, Enums::EmployeeType first,
+        Rest... rest)
+    {
+        if (current == first)
+        {
+            return true;
+        }
+        return isAuthorized(current, rest...);
+    }
+
+     /*
+     * Function: enforceAuthorization
+     * Description: Enforces authorization by checking if the current employee type
+     *              is among the allowed types.
+     * Parameters:
+     *    current - the employee type of the current user
+     *    alloweds - one or more allowed employee types
+     * Returns:
+     *    void - throws runtime_error if current is not authorized
+     */
+    template <typename... Allowed>
+    inline void enforceAuthorization(Enums::EmployeeType current, Allowed... allowed)
+    {
+        if (!isAuthorized(current, allowed...))
+        {
+            throw std::runtime_error("You are unauthorized to perform this operation!");
+        }
+    }
+}

Trenser.Zenvy/Trenser.Zenvy/utilities/Enums.h

@@ -1,4 +1,12 @@
+/*
+ * File: Enums.h
+ * Description: Defines strongly typed enumerations for statuses, types, and designations used across the HRMS system.
+ * Author: Smitha
+ * Created: 01-04-2026
+ */
+
 #pragma once
+#include <string>
 
 namespace Enums {
 
@@ -18,7 +26,8 @@ namespace Enums {
     {
         PENDING,
         SHORTLISTED,
-        REJECTED 
+        REJECTED,
+        HIRED
     };
 
     enum class NotificationStatus
@@ -75,7 +84,7 @@ namespace Enums {
         GENERAL,
         IT,
         FINANCE,
-        TAG,
+        TALENT_ACQUISITION,
         HR,
         TEAM,
         ADMIN,
@@ -89,4 +98,333 @@ namespace Enums {
         USER_NOT_FOUND,
         INVALID_PASSWORD
     };
+
+    enum class Month
+    {
+        JANUARY,
+        FEBRUARY,
+        MARCH,
+        APRIL,
+        MAY,
+        JUNE,
+        JULY,
+        AUGUST,
+        SEPTEMBER,
+        OCTOBER,
+        NOVEMBER,
+        DECEMBER,
+        INVALID
+    };
+
+    /*
+     * Function: getAccountStatusString
+     * Description: Converts AccountStatus enum value to string.
+     * Parameters:
+     *    status - account status enum
+     * Returns:
+     *    std::string - string representation of status
+     */
+    inline std::string getAccountStatusString(AccountStatus status)
+    {
+        switch (status)
+        {
+        case AccountStatus::ACTIVE:
+            return "ACTIVE";
+        case AccountStatus::INACTIVE:
+            return "INACTIVE";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
+    /*
+     * Function: getEmployeeTypeString
+     * Description: Converts EmployeeType enum value to string.
+     * Parameters:
+     *    type - employee type enum
+     * Returns:
+     *    std::string - string representation of employee type
+     */
+    inline std::string getEmployeeTypeString(EmployeeType type)
+    {
+        switch (type)
+        {
+        case EmployeeType::GENERAL:
+            return "GENERAL";
+        case EmployeeType::IT:
+            return "IT";
+        case EmployeeType::FINANCE:
+            return "FINANCE";
+        case EmployeeType::TALENT_ACQUISITION:
+            return "TALENT_ACQUISITION";
+        case EmployeeType::HR:
+            return "HR";
+        case EmployeeType::TEAM:
+            return "TEAM";
+        case EmployeeType::ADMIN:
+            return "ADMIN";
+        case EmployeeType::INVALID:
+            return "INVALID";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
+    /*
+     * Function: getTeamStatusString
+     * Description: Converts TeamStatus enum value to string.
+     * Parameters:
+     *    status - team status enum
+     * Returns:
+     *    std::string - string representation of team status
+     */
+    inline std::string getTeamStatusString(TeamStatus status)
+    {
+        switch (status)
+        {
+        case TeamStatus::IN_TEAM:
+            return "IN_TEAM";
+        case TeamStatus::NOT_IN_TEAM:
+            return "NOT_IN_TEAM";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
+    /*
+     * Function: getEmployeeDesignationString
+     * Description: Converts EmployeeDesignation enum value to string.
+     * Parameters:
+     *    designation - employee designation enum
+     * Returns:
+     *    std::string - string representation of designation
+     */
+    inline std::string getEmployeeDesignationString(EmployeeDesignation designation)
+    {
+        switch (designation)
+        {
+        case EmployeeDesignation::JUNIOR:
+            return "JUNIOR";
+        case EmployeeDesignation::SENIOR:
+            return "SENIOR";
+        case EmployeeDesignation::TEAM_LEAD:
+            return "TEAM_LEAD";
+        case EmployeeDesignation::INVALID:
+            return "INVALID";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
+    /*
+     * Function: getCandidateStatusString
+     * Description: Converts CandidateStatus enum value to string.
+     * Parameters:
+     *    status - candidate status enum
+     * Returns:
+     *    std::string - string representation of candidate status
+     */
+    inline std::string getCandidateStatusString(CandidateStatus status)
+    {
+        switch (status)
+        {
+        case CandidateStatus::PENDING: return "Pending";
+        case CandidateStatus::SHORTLISTED: return "Shortlisted";
+        case CandidateStatus::REJECTED: return "Rejected";
+        default: return "Unknown";
+        }
+    }
+
+    /*
+     * Function: getMonthString
+     * Description: Converts Month enum value to month name.
+     * Parameters:
+     *    month - month enum
+     * Returns:
+     *    std::string - month name
+     */
+    inline std::string getMonthString(Month month)
+    {
+        switch (month)
+        {
+        case Month::JANUARY:
+            return "January";
+        case Month::FEBRUARY:
+            return "February";
+        case Month::MARCH:
+            return "March";
+        case Month::APRIL:
+            return "April";
+        case Month::MAY:
+            return "May";
+        case Month::JUNE:
+            return "June";
+        case Month::JULY:
+            return "July";
+        case Month::AUGUST:
+            return "August";
+        case Month::SEPTEMBER:
+            return "September";
+        case Month::OCTOBER:
+            return "October";
+        case Month::NOVEMBER:
+            return "November";
+        case Month::DECEMBER:
+            return "December";
+        case Month::INVALID:
+            return "Invalid Month";
+        default:
+            return "Unknown";
+        }
+    }
+
+    /*
+     * Function: getAccountStatus
+     * Description: Converts string to AccountStatus enum.
+     * Parameters:
+     *    input - string representation of account status
+     * Returns:
+     *    AccountStatus - enum value
+     */
+    inline AccountStatus getAccountStatus(const std::string& input)
+    {
+        if (input == "ACTIVE")
+        {
+            return AccountStatus::ACTIVE;
+        }
+        if (input == "INACTIVE")
+        {
+            return AccountStatus::INACTIVE;
+        }
+        return AccountStatus::INACTIVE;
+    }
+
+    /*
+     * Function: getEmployeeType
+     * Description: Converts string to EmployeeType enum.
+     * Parameters:
+     *    input - string representation of employee type
+     * Returns:
+     *    EmployeeType - enum value
+     */
+    inline EmployeeType getEmployeeType(const std::string& input)
+    {
+        if (input == "GENERAL")
+        {
+            return EmployeeType::GENERAL;
+        }
+        if (input == "IT")
+        {
+            return EmployeeType::IT;
+        }
+        if (input == "FINANCE")
+        {
+            return EmployeeType::FINANCE;
+        }
+        if (input == "TALENT_ACQUISITION")
+        {
+            return EmployeeType::TALENT_ACQUISITION;
+        }
+        if (input == "HR")
+        {
+            return EmployeeType::HR;
+        }
+        if (input == "TEAM")
+        {
+            return EmployeeType::TEAM;
+        }
+        if (input == "ADMIN")
+        {
+            return EmployeeType::ADMIN;
+        }
+        return EmployeeType::INVALID;
+    }
+
+    /*
+     * Function: getTeamStatus
+     * Description: Converts string to TeamStatus enum.
+     * Parameters:
+     *    str - string representation of team status
+     * Returns:
+     *    TeamStatus - enum value
+     */
+    inline TeamStatus getTeamStatus(const std::string& str)
+    {
+        if (str == "IN_TEAM")
+        {
+            return TeamStatus::IN_TEAM;
+        }
+        if (str == "NOT_IN_TEAM")
+        {
+            return TeamStatus::NOT_IN_TEAM;
+        }
+        return TeamStatus::NOT_IN_TEAM;
+    }
+
+    /*
+     * Function: getEmployeeDesignation
+     * Description: Converts string to EmployeeDesignation enum.
+     * Parameters:
+     *    input - string representation of designation
+     * Returns:
+     *    EmployeeDesignation - enum value
+     */
+    inline EmployeeDesignation getEmployeeDesignation(const std::string& input)
+    {
+        if (input == "JUNIOR")
+        {
+            return EmployeeDesignation::JUNIOR;
+        }
+        if (input == "SENIOR")
+        {
+            return EmployeeDesignation::SENIOR;
+        }
+        if (input == "TEAM_LEAD")
+        {
+            return EmployeeDesignation::TEAM_LEAD;
+        }
+        return EmployeeDesignation::INVALID;
+    }
+
+    /*
+     * Function: getMonth
+     * Description: Converts integer to Month enum.
+     * Parameters:
+     *    inputMonth - month number (1–12)
+     * Returns:
+     *    Month - enum value
+     */
+    inline Month getMonth(const int inputMonth)
+    {
+        switch (inputMonth)
+        {
+        case 1:
+            return Month::JANUARY;
+        case 2:
+            return Month::FEBRUARY;
+        case 3:
+            return Month::MARCH;
+        case 4:
+            return Month::APRIL;
+        case 5:
+            return Month::MAY;
+        case 6:
+            return Month::JUNE;
+        case 7:
+            return Month::JULY;
+        case 8:
+            return Month::AUGUST;
+        case 9:
+            return Month::SEPTEMBER;
+        case 10:
+            return Month::OCTOBER;
+        case 11:
+            return Month::NOVEMBER;
+        case 12:
+            return Month::DECEMBER;
+        default:
+            return Month::INVALID;
+        }
+    }
+
 }

Trenser.Zenvy/Trenser.Zenvy/utilities/InputHelper.h

@@ -1,5 +1,10 @@
+/*
+ * File: InputHelper.h
+ * Description: Handles input validation and error handling
+ * Author: Smitha
+ * Created: 08-Apr-2026
+ */
 #pragma once
-
 #include <iostream>
 #include <limits>
 #include <string>
@@ -7,6 +12,14 @@
 
 namespace util
 {
+    /*
+    * Function: read
+    * Description: Reads input from console into a variable of type T.
+    * Parameters:
+    * value - reference to a variable of type T where the input will be stored
+    * Returns:
+    * void - throws runtime_error if input is invalid
+    */
     template <typename T>
     inline void read(T& value)
     {
@@ -18,13 +31,28 @@ namespace util
         }
     }
 
+    /*
+    * Function: read
+    * Description: Reads a line of text input from console into a string.
+    * Parameters:
+    * value - reference to a string where the input will be stored
+    * Returns:
+    * void - no return value
+    */
     inline void read(std::string& value)
     {
         std::getline(std::cin >> std::ws, value);
     }
 
+    /*
+    * Function: pressEnter
+    * Description: Pauses execution until the user presses Enter.
+    * Parameters: None
+    * Returns: void - no return value
+    */
     inline void pressEnter()
     {
+        std::cout << std::endl;
 	    system("pause");
     }
 }

Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.cpp

@@ -1,5 +1,18 @@
+/*
+ * File: OutputHelper.cpp
+ * Description: Provides functions to help with console output.
+ * Author: Trenser
+ * Created: 01-04-2026
+*/
 #include "outputHelper.h"
 
+/*
+* Function: clear
+* Description: Clears the console screen output.
+* Parameters: None
+* Returns:
+*    void - no return value
+*/
 void util::clear()
 {
 	std::cout << "\x1B[2J\x1B[H" << std::flush;

Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.h

@@ -1,3 +1,9 @@
+/*
+ * File: OutputHelper.h
+ * Description: Provides functions to help with console output.
+ * Author: Trenser
+ * Created: 01-04-2026
+*/
 #pragma once
 #include <iostream>
 

Trenser.Zenvy/Trenser.Zenvy/utilities/StringHelper.cpp

@@ -0,0 +1,29 @@
+/*
+ * File: StringHelper.cpp
+ * Description: Provides functions to help with string manipulation.
+ * Author: Trenser
+ * Created: 10-04-2026
+*/
+#include "StringHelper.h"
+#include <cctype>
+
+/*
+ * Function: extractNumber
+ * Description: Extracts and returns the numeric value formed by digits in the input string.
+ * Parameters:
+ *    input - string containing numeric and non-numeric characters
+ * Returns:
+ *    int - number extracted from the input string
+ */
+int util::extractNumber(const std::string& input)
+{
+    int result = 0;
+    for (char character : input)
+    {
+        if (std::isdigit(static_cast<unsigned char>(character)))
+        {
+            result = result * 10 + (character - '0');
+        }
+    }
+    return result;
+}

Trenser.Zenvy/Trenser.Zenvy/utilities/StringHelper.h

@@ -0,0 +1,13 @@
+/*
+ * File: StringHelper.h
+ * Description: Provides functions to help with string manipulation.
+ * Author: Trenser
+ * Created: 10-04-2026
+*/
+#pragma once
+#include <string>
+
+namespace util
+{
+    int extractNumber(const std::string&);
+}

Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.cpp

@@ -1,18 +1,52 @@
+/*
+ * File: Timestamp.cpp
+ * Description: Provides a utility class for representing and manipulating time values.
+ *              Supports conversion between string and time formats, duration calculations
+ *              (hours, minutes, seconds), date extraction, and comparison operators.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
 #include <sstream>
 #include <iomanip>
 #include <stdexcept>
 #include "Timestamp.h"
 
+ /*
+ * Function: Timestamp
+ * Description: Default constructor that initializes the timestamp to the current system time.
+ * Parameters:
+ *    None
+ * Returns:
+ *    Timestamp object
+ */
 util::Timestamp::Timestamp()
 {
     m_time = std::time(nullptr);
 }
 
+/*
+* Function: Timestamp (overloaded)
+* Description: Constructor that initializes the timestamp with a given time value.
+* Parameters:
+*    timeValue - time_t value representing a specific time
+* Returns:
+*    Timestamp object
+*/
 util::Timestamp::Timestamp(std::time_t timeValue)
 {
     m_time = timeValue;
 }
 
+/*
+* Function: fromString
+* Description: Creates a Timestamp object from a formatted string.
+* Parameters:
+*    timeString - string in the format "YYYY-MM-DD HH:MM:SS"
+* Returns:
+*    Timestamp object representing the parsed time
+* Throws:
+*    runtime_error if the string format is invalid
+*/
 util::Timestamp util::Timestamp::fromString(const std::string& timeString)
 {
     std::tm timeStruct = {};
@@ -26,6 +60,14 @@ util::Timestamp util::Timestamp::fromString(const std::string& timeString)
     return Timestamp(parsedTimestamp);
 }
 
+/*
+* Function: toString
+* Description: Converts the Timestamp object into a formatted string.
+* Parameters:
+*    None
+* Returns:
+*    string - formatted as "YYYY-MM-DD HH:MM:SS"
+*/
 std::string util::Timestamp::toString() const
 {
     std::tm timeStruct = {};
@@ -35,11 +77,28 @@ std::string util::Timestamp::toString() const
     return outputStream.str();
 }
 
+/*
+* Function: getDurationInSeconds
+* Description: Calculates the duration between two timestamps in seconds.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in seconds
+*/
 double util::Timestamp::getDurationInSeconds(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return std::difftime(endTimestamp.m_time, startTimestamp.m_time);
 }
 
+/*
+* Function: getDateAsInt
+* Description: Returns the date portion of the timestamp as an integer in YYYYMMDD format.
+* Parameters:
+*    None
+* Returns:
+*    int - date as YYYYMMDD
+*/
 int util::Timestamp::getDateAsInt() const
 {
     std::tm timeStruct{};
@@ -50,36 +109,139 @@ int util::Timestamp::getDateAsInt() const
     return year * 10000 + month * 100 + day;
 }
 
+/*
+* Function: getMonth
+* Description: Extracts the month value from the timestamp.
+* Parameters:
+*    None
+* Returns:
+*    int - month value (1 to 12)
+*/
+int util::Timestamp::getMonth() const
+{
+    std::tm timeStruct{};
+    localtime_s(&timeStruct, &m_time);
+    return timeStruct.tm_mon + 1;
+}
+
+/*
+* Function: getYear
+* Description: Extracts the year value from the timestamp.
+* Parameters:
+*    None
+* Returns:
+*    int - year value
+*/
+int util::Timestamp::getYear() const
+{
+    std::tm timeStruct{};
+    localtime_s(&timeStruct, &m_time);
+    return timeStruct.tm_year + 1900;
+}
+
+/*
+* Function: getDay
+* Description: Extracts the day value from the timestamp.
+* Parameters:
+*    None
+* Returns:
+*    int - day of the month
+*/
+int util::Timestamp::getDay() const
+{
+    std::tm timeStruct{};
+    localtime_s(&timeStruct, &m_time);
+    return timeStruct.tm_mday;
+}
+
+/*
+* Function: getDurationInMinutes
+* Description: Calculates the duration between two timestamps in minutes.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in minutes
+*/
 double util::Timestamp::getDurationInMinutes(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return getDurationInSeconds(startTimestamp, endTimestamp) / 60.0;
 }
 
+/*
+* Function: getDurationInHours
+* Description: Calculates the duration between two timestamps in hours.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in hours
+*/
 double util::Timestamp::getDurationInHours(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return getDurationInSeconds(startTimestamp, endTimestamp) / 3600.0;
 }
 
+/*
+* Function: operator<
+* Description: Compares two timestamps to check if one is earlier than the other.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is earlier
+*/
 bool util::Timestamp::operator<(const Timestamp& other) const
 {
     return m_time < other.m_time;
 }
 
+/*
+* Function: operator>
+* Description: Compares two timestamps to check if one is later than the other.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is later
+*/
 bool util::Timestamp::operator>(const Timestamp& other) const
 {
     return m_time > other.m_time;
 }
 
+/*
+* Function: operator<=
+* Description: Compares two timestamps to check if one is earlier or equal.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is earlier or equal
+*/
 bool util::Timestamp::operator<=(const Timestamp& other) const
 {
     return m_time <= other.m_time;
 }
 
+/*
+* Function: operator>=
+* Description: Compares two timestamps to check if one is later or equal.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is later or equal
+*/
 bool util::Timestamp::operator>=(const Timestamp& other) const
 {
     return m_time >= other.m_time;
 }
 
+/*
+* Function: operator==
+* Description: Compares two timestamps for equality.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if both timestamps are equal
+*/
 bool util::Timestamp::operator==(const Timestamp& other) const
 {
     return m_time == other.m_time;

Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.h

@@ -1,3 +1,11 @@
+/*
+ * File: Timestamp.h
+ * Description: Provides a utility class for representing and manipulating time values.
+ *              Supports conversion between string and time formats, duration calculations
+ *              (hours, minutes, seconds), date extraction, and comparison operators.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
 #pragma once
 #include <ctime>
 #include <string>
@@ -17,6 +25,9 @@ namespace util
         static double getDurationInMinutes(const Timestamp&, const Timestamp&);
         static double getDurationInSeconds(const Timestamp&, const Timestamp&);
         int getDateAsInt() const;
+        int getMonth() const;
+        int getYear() const;
+        int getDay() const;
         bool operator>(const Timestamp&) const;
         bool operator<(const Timestamp&) const;
         bool operator>=(const Timestamp&) const;

Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.cpp

@@ -1,8 +1,24 @@
+/*
+ * File: Validator.cpp
+ * Description: Validates inputs like phone number, email, password
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #include <string>
 #include <cctype>
 #include "Validator.h"
+#include "Employee.h"
 #include "ApplicationConfig.h"
 
+/*
+ * Function: isPhoneNumberValid
+ * Description: Validates whether the given string is a valid phone number.
+ * Parameters:
+ *    phoneNumber - string containing the phone number to validate
+ * Returns:
+ *    bool - true if the phone number is valid (10 digits, all numeric), false otherwise
+ */
 bool util::isPhoneNumberValid(const std::string& phoneNumber) {
 	if (phoneNumber.size() != 10)
 	{
@@ -16,9 +32,20 @@ bool util::isPhoneNumberValid(const std::string& phoneNumber) {
 	);
 }
 
+/*
+ * Function: isEmailValid
+ * Description: Validates whether the given string is a properly formatted email address.
+ * Parameters:
+ *    email - string containing the email address to validate
+ * Returns:
+ *    bool - true if the email contains exactly one '@' character and is not at the start or end, false otherwise
+ */
 bool util::isEmailValid(const std::string& email) {
 	size_t index = email.find('@');
-	if (index == std::string::npos) return false;
+	if (index == std::string::npos)
+	{
+		return false;
+	}
 	if (email.find('@', index + 1) != std::string::npos)
 	{
 		return false;
@@ -30,7 +57,19 @@ bool util::isEmailValid(const std::string& email) {
 	return true;
 }
 
-
+/*
+ * Function: isPasswordValid
+ * Description: Validates whether the given string meets password requirements.
+ * Parameters:
+ *    password - string containing the password to validate
+ * Returns:
+ *    bool - true if the password is valid, false otherwise
+ * Notes:
+ *    - Must not equal the default password
+ *    - Must be at least 8 characters long
+ *    - Must contain at least one uppercase letter, one lowercase letter, one digit, and one special character
+ *    - Must not contain whitespace
+ */
 bool util::isPasswordValid(const std::string& password)
 {
 	if (password == Config::Authentication::DEFAULT_PASSWORD)
@@ -69,3 +108,90 @@ bool util::isPasswordValid(const std::string& password)
 	}
 	return hasUpper && hasLower && hasDigit && hasSpecial;
 }
+
+/*
+ * Function: hasActiveEmployeeOfType
+ * Description: Checks whether there is any active employee of the given employee type.
+ * Parameters:
+ *    employeeType - the type of employee to check against
+ *    employees - map of employee ID to Employee* objects
+ * Returns:
+ *    bool - true if an active employee of the given type exists, otherwise false
+ */
+bool util::hasActiveEmployeeOfType(Enums::EmployeeType employeeType, const std::map<std::string, Employee*>& employees)
+{
+	for (const auto& employeePair : employees)
+	{
+		const auto& employee = employeePair.second;
+		if (employee->getEmployeeType() == employeeType && employee->getEmployeeAccountStatus() == Enums::AccountStatus::ACTIVE)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+/*
+ * Function: isEmailDuplicate
+ * Description: Checks if an email already exists among the given employees.
+ * Parameters:
+ *    email - the email address to check
+ *    employees - map of employee ID to Employee* objects
+ * Returns:
+ *    bool - true if a duplicate email is found, otherwise false
+ */
+bool util::isEmailDuplicate(const std::string& email, const std::map<std::string, Employee*>& employees)
+{
+	for (const auto& employeePair : employees)
+	{
+		const auto& employee = employeePair.second;
+		if (employee->getEmployeeEmail() == email)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+/*
+ * Function: isPhoneDuplicate
+ * Description: Checks if a phone number already exists among the given employees.
+ * Parameters:
+ *    phone - the phone number to check
+ *    employees - map of employee ID to Employee* objects
+ * Returns:
+ *    bool - true if a duplicate phone number is found, otherwise false
+ */
+bool util::isPhoneDuplicate(const std::string& phone, const std::map<std::string, Employee*>& employees)
+{
+	for (const auto& employeePair : employees)
+	{
+		const auto& employee = employeePair.second;
+		if (employee->getEmployeePhone() == phone)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+/*
+ * Function: isPhoneDuplicate (overloaded)
+ * Description: Checks if a phone number already exists in a vector of employees.
+ * Parameters:
+ *    phone - the phone number to check
+ *    employees - vector of Employee* pointers
+ * Returns:
+ *    bool - true if a duplicate phone number is found, otherwise false
+ */
+bool util::isPhoneDuplicate(const std::string& phone, const std::vector<const Employee*>& employees)
+{
+	for (const auto& employee : employees)
+	{
+		if (employee->getEmployeePhone() == phone)
+		{
+			return true;
+		}
+	}
+	return false;
+}

Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.h

@@ -1,11 +1,27 @@
+/*
+ * File: Validator.h
+ * Description: Validates inputs like phone number, email, password
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
 #pragma once
 #include<string>
+#include<map>
+#include<memory>
+#include<vector>
 #include<algorithm>
 #include<cctype>
+#include "Enums.h"
+
+class Employee;
 
 namespace util
 {
 	bool isPhoneNumberValid(const std::string&);
 	bool isEmailValid(const std::string&);
 	bool isPasswordValid(const std::string&);
+	bool hasActiveEmployeeOfType(Enums::EmployeeType, const std::map<std::string, Employee*>&);
+	bool isEmailDuplicate(const std::string&, const std::map<std::string, Employee*>&);
+	bool isPhoneDuplicate(const std::string&, const std::map<std::string, Employee*>&);
+	bool isPhoneDuplicate(const std::string&, const std::vector<const Employee*>&);
 }

Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.cpp

@@ -1,8 +1,24 @@
+/*
+ * File: AdminMenu.cpp
+ * Description: Handles user-related operations such as creation, authentication, and validation.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #include <iostream>
 #include "AdminMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
+#include "MenuHelper.h"
 
+ /*
+  * Function: AdminMenu::run
+  * Description: Starts and manages the administrator menu loop. Continuously displays
+  *              options to the administrator until logout is selected or an exception occurs.
+  * Parameters:
+  *    None
+  * Returns:
+  *    None
+  */
 void AdminMenu::run()
 {
 	bool isMenuActive = true;
@@ -12,7 +28,7 @@ void AdminMenu::run()
 		{
 			int choice;
 			util::clear();
-			std::cout << "Zenvy - HR Management System\n1. Create HRManager\n2. Create Employee\n3. View Employee\n4. Deactivate Employee\n5. Logout\nEnter your Choice: ";
+			std::cout << "Admin Menu\n1. Create User\n2. View Employees\n3. Deactivate Employee\n4. Search Employee\n5. Update Profile\n6. Update Designation \n7. Add Shortlisted Candidate As Employee\n8. Logout\nEnter your Choice: ";
 			util::read(choice);
 			if (!handleOperation(choice))
 			{
@@ -27,26 +43,45 @@ void AdminMenu::run()
 	}
 }
 
+/*
+ * Function: AdminMenu::handleOperation
+ * Description: Processes the administrator’s menu choice and executes the corresponding action.
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the administrator chooses to logout
+ */
 bool AdminMenu::handleOperation(int choice)
 {
 	switch (choice)
 	{
-	/*case 1:
-		m_zenvyController.createHRManager();
+	case 1:
+		createEmployee(m_zenvyController);
 		break;
 	case 2:
-		m_zenvyController.createEmployee();
+		viewEmployees(m_zenvyController);
 		break;
 	case 3:
-		m_zenvyController.viewEmployee();
+		deactivateEmployee(m_zenvyController);
 		break;
 	case 4:
-		m_zenvyController.deactivateEmployee();
-		break;*/
+		searchEmployee(m_zenvyController);
+		break;
 	case 5:
+		updateProfile(m_zenvyController);
+		break;
+	case 6:
+		updateDesignation(m_zenvyController);
+		break;
+	case 7:
+		addShortlistedCandidateAsEmployee(m_zenvyController);
+		break;
+	case 8:
 		return false;
 	default:
 		std::cout << "Enter a valid choice!" << std::endl;
+		util::pressEnter();
 	}
 	return true;
 }

Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.h

@@ -1,14 +1,18 @@
+/*
+ * File: AdminMenu.h
+ * Description: Declaration of the AdminMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #pragma once
-#include<memory>
 #include"ZenvyController.h"
 
 class AdminMenu
 {
 private:
-	std::shared_ptr<ZenvyController> m_zenvyController;
+	ZenvyController* m_zenvyController;
 public:
-	AdminMenu() :m_zenvyController(std::make_shared<ZenvyController>()) {};
+	AdminMenu() :m_zenvyController(new ZenvyController()) {};
 	void run();
 	bool handleOperation(int);
 };
-

Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.cpp

@@ -1,8 +1,24 @@
+/*
+ * File: EmployeeMenu.cpp
+ * Description: Implements the EmployeeMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #include <iostream>
+#include<iomanip>
 #include "EmployeeMenu.h"
-#include"InputHelper.h"
-#include"OutputHelper.h"
+#include "InputHelper.h"
+#include "OutputHelper.h"
+#include "MenuHelper.h"
 
+ /*
+  * Function: EmployeeMenu::run
+  * Description: Starts the employee menu loop and displays available options until logout is selected
+  * Parameters:
+  *    None
+  * Returns:
+  *    None
+  */
 void EmployeeMenu::run()
 {
 	bool isMenuActive = true;
@@ -12,7 +28,7 @@ void EmployeeMenu::run()
 		{
 			int choice;
 			util::clear();
-			std::cout << "Zenvy - The HR Management System\n1. Apply Leave\n2. View Payslip\n3. View Payslip History\n4. Raise Ticke\n5. View Ticket\n6. View Ticket History\n7. View Employees\n8. Search Employee\n9. View Team Members\n10. Book Meeting Room\n11. View Booking History\n12. View Notification\n13. View Announcements\n14. Logout\nEnter your Choice: ";
+			std::cout << "Employee Menu\n1. Apply Leave\n2. View Payslip\n3. View Payslip History\n4. Raise Ticket\n5. View Ticket\n6. View Ticket History\n7. View Employees\n8. Search Employee\n9. View Team Members\n10. Book Meeting Room\n11. View Booking History\n12. View Notifications\n13. View Announcements\n14. Update Profile\n15. View Profile\n16. Exit\nEnter your Choice: ";
 			util::read(choice);
 			if (!handleOperation(choice))
 			{
@@ -27,53 +43,42 @@ void EmployeeMenu::run()
 	}
 }
 
+/*
+ * Function: EmployeeMenu::handleOperation
+ * Description: Handles the employee’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the employee chooses to logout
+ */
 bool EmployeeMenu::handleOperation(int choice)
 {
 	switch (choice)
 	{
-	/*case 1:
-		m_zenvyController.applyLeave();
-		break;
 	case 2:
-		m_zenvyController.viewPayslip();
+		viewPayslip(m_zenvyController);
 		break;
 	case 3:
-		m_zenvyController.viewPayslipHistory();
-		break;
-	case 4 :
-		m_zenvyController.raiseTicket();
-		break;
-	case 5 :
-		m_zenvyController.viewTicket();
-		break;
-	case 6:
-		m_zenvyController.viewTicketHistory();
+		viewPayslipHistory(m_zenvyController);
 		break;
 	case 7:
-		m_zenvyController.viewEmployees();
+		viewEmployees(m_zenvyController);
 		break;
 	case 8:
-		m_zenvyController.searchEmployee();
+		searchEmployee(m_zenvyController);
 		break;
-	case 9:
-		m_zenvyController.viewTeamMembers();
-		break;
-	case 10:
-		m_zenvyController.bookMeetingRoom();
-		break;
-	case 11:
-		m_zenvyController.viewBookingHistory();
-		break;
-	case 12:
-		m_zenvyController.viewNotifications();
-		break;
-	case 13:
-		m_zenvyController.viewAnnouncements();
-		break;*/
 	case 14:
+		updateProfile(m_zenvyController);
+		break;
+	case 15:
+		viewProfile(m_zenvyController);
+		break;
+	case 16:
 		return false;
 	default:
 		std::cout << "Enter a valid choice!" << std::endl;
+		util::pressEnter();
 	}
 	return true;
 }