#pragma once

#include "assets/components/mesh_vertex_components.hpp"
#include "assets/components/point_cloud_vertex_components.hpp"
#include "assets/components/material_components.hpp"
#include "shader_program/attributes/mesh_attributes.hpp"
#include "shader_program/uniforms/mesh_uniforms.hpp"

namespace shader_program::capabilities::mesh
{

struct type
{
	attributes::mesh::flags attributes{
		attributes::mesh::flags::none
	};
	uniforms::mesh::flags uniforms{
		uniforms::mesh::flags::none
	};
};

namespace indices
{
using type = ztu::u8;
constexpr inline type position = 0;
constexpr inline type lit = 1;
constexpr inline type textured = 2;
constexpr inline type uniform_color = 3;
constexpr inline type uniform_alpha = 4;
constexpr inline type point = 5;
}

enum class flags : int
{
	none = 0,
	position = 1 << indices::position,
	lit = 1 << indices::lit,
	textured = 1 << indices::textured,
	uniform_color = 1 << indices::uniform_color,
	uniform_alpha = 1 << indices::uniform_alpha,
	point = 1 << indices::point
};

constexpr inline auto position = type{
	.attributes = attributes::mesh::flags::position,
	.uniforms = uniforms::mesh::flags::mvp
};

constexpr inline auto lit = type{
	.attributes = attributes::mesh::flags::normal,
	.uniforms = (
		uniforms::mesh::flags::model_matrix |
		uniforms::mesh::flags::view_pos |
		uniforms::mesh::flags::point_light_direction |
		uniforms::mesh::flags::point_light_color |
		uniforms::mesh::flags::ambient_light_color |
		uniforms::mesh::flags::ambient_filter |
		uniforms::mesh::flags::diffuse_filter |
		uniforms::mesh::flags::specular_filter |
		uniforms::mesh::flags::shininess
	)
};

constexpr inline auto point = type{
 	.uniforms = uniforms::mesh::flags::point_size
};

constexpr inline auto textured = type{
	.attributes = attributes::mesh::flags::tex_coord,
	.uniforms = uniforms::mesh::flags::tex
};

constexpr inline auto uniform_color  = type{
	.uniforms = uniforms::mesh::flags::color
};

constexpr inline auto uniform_alpha = type{
	.uniforms = uniforms::mesh::flags::alpha
};

constexpr inline auto all = std::array{
	position, lit,  textured, uniform_color, uniform_alpha, point
};

}