#pragma once

#include "Core/GameObject.h"
#include <unordered_set>

#include <XCEngine/Core/Event.h>

namespace UI {

class SelectionManager {
public:
    static SelectionManager& Get() {
        static SelectionManager instance;
        return instance;
    }
    
    EntityID GetSelectedEntity() const { return m_selectedEntity; }
    
    void SetSelectedEntity(EntityID id) {
        m_selectedEntity = id;
        OnSelectionChanged.Invoke(id);
    }
    
    void ClearSelection() {
        SetSelectedEntity(INVALID_ENTITY_ID);
    }
    
    bool IsSelected(EntityID id) const {
        return m_selectedEntity == id;
    }
    
    XCEngine::Core::Event<EntityID> OnSelectionChanged;
    
private:
    SelectionManager() = default;
    EntityID m_selectedEntity = INVALID_ENTITY_ID;
};

}