#pragma once

#include <unordered_map>

#include <QObject>

#include "app/Singleton.h"

#include "xml/tinyxml2.h"

class Entity;

class EntitiesManager : public QObject, public Singleton<EntitiesManager> {
	Q_OBJECT

public:
	explicit EntitiesManager(QObject* parent = nullptr);
	~EntitiesManager();
	void OnDestory();

	bool Contains(const QString& name) const;

	bool Parse(const tinyxml2::XMLElement* element, class WorkSpace* workspce);

	Entity* Create(const QString& name);
	Entity* CreateMesh(const QString& mesh);
	bool DeleteEntity(Entity* entity);

	Entity* GetEntity(const QString& uuid);

	Entity* Create(const tinyxml2::XMLElement* element, Entity* parent, WorkSpace* workspce);

protected:
	void AddEntity(Entity* entity);
	void RemoveEntity(Entity* entity);

private:
	std::unordered_map<QString, Entity*> entities_;

};