#pragma once

#include <array>
#include <optional>
#include <vector>

#include "cbt/opengl/buffer.hpp"
#include "cbt/opengl/texture.hpp"

namespace cbt::opengl {

struct descriptor_binding {
    GLuint texture_unit = 0;
    std::optional<texture> tex;
    std::optional<buffer> buf;
};

class descriptor_set {
public:
    descriptor_set();
    auto add_texture(texture tex, GLuint unit = 0) -> void;
    auto add_buffer(buffer buf, GLuint unit = 0) -> void;
    auto bind_all() -> void;
    auto count() const -> size_t;

private:
    std::vector<descriptor_binding> m_bindings;
};

}