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

class InventoryItem;

class InventoryManagementService : public NotificationManagementService 
{
private:
    DataStore& m_dataStore;
    static util::Map<std::string, User*> m_observers;
public:
    InventoryManagementService() : m_dataStore(DataStore::getInstance()) {}
    util::Map<std::string, InventoryItem*> getInventoryItems();
    InventoryItem* getInventoryItem(const std::string& inventoryItemID);
    void addInventoryItem(const std::string& partName, int quantity, double price);
    void removeInventoryItem(const std::string& inventoryItemID);
    void sendLowStockAlerts();
    void sendNotification(User* user, const std::string& title, const std::string& message) override;
    void attach(User* user) override;
    void detach(User* user) override;
};