#ifndef INCLUDE_RESOURCE_HANDLE_IMPLEMENTATION
#	error Never include this file directly include 'resource_handle.hpp'
#endif


zgl::resource_handle::resource_handle(id_type id, reference_counter* manager)
	: m_id{ id }, m_counter{ manager } {}

zgl::resource_handle::resource_handle(const resource_handle& other) noexcept
	: m_id{ other.m_id }, m_counter{ other.m_counter }
{
	if (m_id != 0 and m_counter != nullptr)
	{
		m_counter->add_reference(m_id);
	}
}

zgl::resource_handle& zgl::resource_handle::operator=(
	const resource_handle& other
) noexcept {
	if (&other != this)
	{
		this->~resource_handle();

		m_id = other.m_id;
		m_counter = other.m_counter;

		if (m_id != 0 and m_counter != nullptr)
		{
			m_counter->add_reference(m_id);
		}
	}

	return *this;
}

zgl::resource_handle::resource_handle(resource_handle&& other) noexcept
	: m_id{ other.m_id }, m_counter{ other.m_counter }
{
	other.m_id = 0;
	other.m_counter = nullptr;
}

zgl::resource_handle& zgl::resource_handle::resource_handle::operator=(
	resource_handle&& other
) noexcept {
	if (&other != this)
	{
		this->~resource_handle();

		m_id = other.m_id;
		m_counter = other.m_counter;

		other.m_id = 0;
		other.m_counter = nullptr;
	}

	return *this;
}

zgl::resource_handle::~resource_handle()
{
	if (m_id != 0 and m_counter != nullptr)
	{
		m_counter->remove_reference(m_id);
	}
}