#include "glad/glad.h"

#include "cbt/opengl/descriptor.hpp"

namespace cbt::opengl {

descriptor_set::descriptor_set() {}

auto descriptor_set::add_texture(texture tex, GLuint unit) -> void {
    m_bindings.push_back({unit, std::move(tex), std::nullopt});
}

auto descriptor_set::add_buffer(buffer buf, GLuint unit) -> void {
    m_bindings.push_back({unit, std::nullopt, std::move(buf)});
}

auto descriptor_set::bind_all() -> void {
    for (auto& binding : m_bindings) {
        if (binding.tex) {
            binding.tex->bind(binding.texture_unit);
        }
        if (binding.buf) {
            binding.buf->bind();
        }
    }
}

auto descriptor_set::count() const -> size_t {
    return m_bindings.size();
}

}