/*
File: DataStore.h
Description: Declares the DataStore singleton class responsible for managing collections of users, services, combo packages, service bookings, job cards, inventory items, invoices, and payments in the Vehicle Service Management System.
Author: Trenser
Date: 19-May-2026
*/

#pragma once
#include <string>
#include "Map.h"

class User;
class Service;
class ComboPackage;
class ServiceBooking;
class JobCard;
class InventoryItem;
class Invoice;
class Payment;

class DataStore
{
private:
    util::Map<std::string, User*> m_users;
    util::Map<std::string, Service*> m_services;
    util::Map<std::string, ComboPackage*> m_comboPackages;
    util::Map<std::string, ServiceBooking*> m_serviceBookings;
    util::Map<std::string, JobCard*> m_jobCards;
    util::Map<std::string, InventoryItem*> m_inventoryItems;
    util::Map<std::string, Invoice*> m_invoices;
    util::Map<std::string, Payment*> m_payments;
    DataStore() {}
public:
    static DataStore& getInstance();
    DataStore(const DataStore&) = delete;
    DataStore& operator=(const DataStore&) = delete;
    DataStore(DataStore&&) = delete;
    DataStore& operator=(DataStore&&) = delete;
    util::Map<std::string, User*>& getUsers();
    util::Map<std::string, Service*>& getServices();
    util::Map<std::string, ComboPackage*>& getComboPackages();
    util::Map<std::string, ServiceBooking*>& getServiceBookings();
    util::Map<std::string, JobCard*>& getJobCards();
    util::Map<std::string, InventoryItem*>& getInventoryItems();
    util::Map<std::string, Invoice*>& getInvoices();
    util::Map<std::string, Payment*>& getPayments();
};