display_info.hpp

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#pragma once
 
 
#include <commons/color.hpp>
#include <commons/icon.hpp>
 
#include <concepts>
#include <optional>
#include <string>
 
namespace comms {
 
struct DisplayInfo {
    std::optional<std::string> name = std::nullopt;         
    std::optional<std::string> description = std::nullopt;  
    std::optional<Icon> icon = std::nullopt;                
    std::optional<Color> color = std::nullopt;              
    bool operator==(const DisplayInfo&) const = default;    
};
 
namespace detail {
template <typename T>
concept HasMemberDisplayInfo = requires {
    { T::display_info() } -> std::same_as<const DisplayInfo&>;
};
}  // namespace detail
 
template <typename T>
struct HasDisplayInfo {
    [[nodiscard]] static const DisplayInfo& display_info()
        requires detail::HasMemberDisplayInfo<T>
    {
        return T::display_info();
    }
};
 
template <typename T>
[[nodiscard]] const DisplayInfo& display_info() {
    return HasDisplayInfo<T>::display_info();
}
 
template <typename T>
concept Displayable = requires {
    { HasDisplayInfo<T>::display_info() } -> std::same_as<const DisplayInfo&>;
};
 
}  // namespace comms