#pragma once

#include "assets/data/texture.hpp"
#include "assets/data/uniform_surface_properties.hpp"
#include "assets/components/material_components.hpp"

#include "opengl/handles/material_handle.hpp"
#include "opengl/data/texture_data.hpp"

#include <system_error>


namespace zgl
{
struct material_data
{
private:
	material_data(
		const std::optional<texture_handle>& texture_handle,
		const std::optional<surface_properties_handle>& surface_properties_handle,
		const std::optional<alpha_handle>& alpha_handle,
		std::optional<texture_data>&& texture_data,
		material_components::flags components
	);

public:
	material_data() = default;

	[[nodiscard]] static std::error_code build_from(
		const std::optional<material_texture_components>& texture_opt,
		const std::optional<material_components::surface_properties>& surface_properties_opt,
		const std::optional<material_components::transparency>& transparency_opt,
		material_component::flags components,
		material_data& data
	);

	material_data(const material_data& other) = delete;
	material_data& operator=(const material_data& other) = delete;

	material_data(material_data&& other) noexcept;
	material_data& operator=(material_data&& other) noexcept;

	[[nodiscard]] material_handle handle() const;

	[[nodiscard]] material_component::flags components() const;

private:
	material_handle m_handle{};
	std::optional<texture_data> m_texture_data{ std::nullopt };
	material_component::flags m_component_types{
		material_component::flags::none
	};
};
}

#define INCLUDE_MATERIAL_DATA_IMPLEMENTATION
#include "opengl/data/material_data.ipp"
#undef INCLUDE_MATERIAL_DATA_IMPLEMENTATION