src/CCallbackHandler.cpp

	#include "CCallbackHandler.h"

	CCallbackHandlerBase::~CCallbackHandlerBase()
	{
	for (auto callback : callbacks)
	{
	callback->Invalidate();
	}
	}

	void CCallbackHandlerBase::RegisterCallback(CSmartCallback* callback) { callbacks.push_back(callback); }
	void CCallbackHandlerBase::UnregisterCallback(CSmartCallback* callback) { std::erase(callbacks, callback); }

	CSmartCallback::CSmartCallback(CCallbackHandlerBase& _handler, void* _func) : Handler(_handler), FunctionPointer(_func)
	{
	Handler.RegisterCallback(this);
	}

	void CSmartCallback::m_InitiateDeletion()
	{
	if (FunctionPointer)
	{
	Handler.m_deleteFunction(FunctionPointer);
	Handler.UnregisterCallback(this);
	}
	}

	CSmartCallback::~CSmartCallback()
	{
	m_InitiateDeletion();
	}

	void CSmartCallback::ForceDelete()
	{
	m_InitiateDeletion();
	}

	void CSmartCallback::Invalidate() { FunctionPointer = nullptr; }
	bool CSmartCallback::IsValid() const { return FunctionPointer; }

	bool CSmartCallback::V_ScriptInit(std::shared_ptr<sol::state> state, sol::table table)
	{
	table.set_function("isValid", [this]() -> bool { return IsValid(); });
	table.set_function("invalidate", [this]() -> void { return Invalidate(); });
	table.set_function("forceDelete", [this]() -> void { return ForceDelete(); });

	return true;
	}

	LINK_SOL_USERTYPE(CCallbackHandlerBase);