#pragma once

#include "IReader.h"

namespace EBML {

// ________________________________________________________________________________________________________________
//

template <class TOwnerClass>
class TReaderCallbackProxy1 final : public IReaderCallback
{
public:
	TReaderCallbackProxy1(TOwnerClass& ownerObject, bool (TOwnerClass::*mfpIsMasterChild)(const CIdentifier& identifier),
						  void (TOwnerClass::*mfpOpenChild)(const CIdentifier& identifier),
						  void (TOwnerClass::*mfpProcessChildData)(const void* buffer, const size_t size), void (TOwnerClass::*mfpCloseChild)())
		: m_ownerObject(ownerObject), m_mfpIsMasterChild(mfpIsMasterChild), m_mfpOpenChild(mfpOpenChild), m_mfpProcessChildData(mfpProcessChildData),
		  m_mfpCloseChild(mfpCloseChild) { }

	bool isMasterChild(const CIdentifier& identifier) override
	{
		if (m_mfpIsMasterChild) { return (m_ownerObject.*m_mfpIsMasterChild)(identifier); }
		return false;
	}

	void openChild(const CIdentifier& identifier) override { if (m_mfpOpenChild) { (m_ownerObject.*m_mfpOpenChild)(identifier); } }

	void processChildData(const void* buffer, const size_t size) override
	{
		if (m_mfpProcessChildData) { (m_ownerObject.*m_mfpProcessChildData)(buffer, size); }
	}

	void closeChild() override { if (m_mfpCloseChild) { (m_ownerObject.*m_mfpCloseChild)(); } }

protected:
	TOwnerClass& m_ownerObject;
	bool (TOwnerClass::*m_mfpIsMasterChild)(const CIdentifier& identifier);
	void (TOwnerClass::*m_mfpOpenChild)(const CIdentifier& identifier);
	void (TOwnerClass::*m_mfpProcessChildData)(const void* buffer, size_t size);
	void (TOwnerClass::*m_mfpCloseChild)();
};

// ________________________________________________________________________________________________________________
//

template <class TOwnerClass, bool (TOwnerClass::*TMfpIsMasterChild)(const CIdentifier& identifier),
		  void (TOwnerClass::*TMfpOpenChild)(const CIdentifier& identifier),
		  void (TOwnerClass::*TMfpProcessChildData)(const void* buffer, size_t size), void (TOwnerClass::*TMfpCloseChild)()>
class TReaderCallbackProxy2 final : public IReaderCallback
{
public:
	TReaderCallbackProxy2(TOwnerClass& ownerObject)
		: m_ownerObject(ownerObject), m_mfpIsMasterChild(TMfpIsMasterChild), m_mfpOpenChild(TMfpOpenChild), m_mfpProcessChildData(TMfpProcessChildData),
		  m_mfpCloseChild(TMfpCloseChild) { }

	bool isMasterChild(const CIdentifier& identifier) override
	{
		if (m_mfpIsMasterChild) { return (m_ownerObject.*m_mfpIsMasterChild)(identifier); }
		return false;
	}

	void openChild(const CIdentifier& identifier) override { if (m_mfpOpenChild) { (m_ownerObject.*m_mfpOpenChild)(identifier); } }

	void processChildData(const void* buffer, const size_t size) override
	{
		if (m_mfpProcessChildData) { (m_ownerObject.*m_mfpProcessChildData)(buffer, size); }
	}

	void closeChild() override { if (m_mfpCloseChild) { (m_ownerObject.*m_mfpCloseChild)(); } }

protected:
	TOwnerClass& m_ownerObject;
	bool (TOwnerClass::*m_mfpIsMasterChild)(const CIdentifier& identifier);
	void (TOwnerClass::*m_mfpOpenChild)(const CIdentifier& identifier);
	void (TOwnerClass::*m_mfpProcessChildData)(const void* buffer, size_t size);
	void (TOwnerClass::*m_mfpCloseChild)();
};

// ________________________________________________________________________________________________________________
//
}  // namespace EBML