base.hpp

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#pragma once
 
 
#include <dimval/descriptor.hpp>
 
#include <commons/color.hpp>
#include <commons/icon.hpp>
 
#include <optional>
#include <string_view>
 
namespace dimval {
 
struct UnitTag {};
 
struct MeasureTag {};
 
template <typename Self>
struct UnitBase : UnitTag {
    using self_t = Self;
 
    static constexpr double offset = 0.0;
    static constexpr std::string_view formatter = "default";
    static constexpr int default_precision = -1;
    static constexpr bool no_space_before_symbol = false;
    static constexpr std::optional<comms::Icon> icon = std::nullopt;
    static constexpr std::optional<comms::Color> color = std::nullopt;
 
    [[nodiscard]] static constexpr UnitDescriptor descriptor() noexcept {
        return UnitDescriptor{
            .id = Self::id,
            .symbol = Self::symbol,
            .short_name = Self::short_name,
            .long_name = Self::long_name,
            .kind = Self::kind,
            .factor = Self::factor,
            .offset = Self::offset,
            .formatter = Self::formatter,
            .default_precision = Self::default_precision,
            .no_space_before_symbol = Self::no_space_before_symbol,
            .icon = Self::icon,
            .color = Self::color,
        };
    }
};
 
template <typename Self, typename BaseUnit>
struct MeasureBase : MeasureTag {
    using self_t = Self;
    using base_unit_t = BaseUnit;
 
    static constexpr std::string_view base_unit_id = BaseUnit::id;
 
    static constexpr std::string_view formatter = {};
    static constexpr int default_precision = -1;
    static constexpr std::optional<comms::Icon> icon = std::nullopt;
    static constexpr std::optional<comms::Color> color = std::nullopt;
 
    [[nodiscard]] static constexpr MeasureDescriptor descriptor() noexcept {
        return MeasureDescriptor{
            .id = Self::id,
            .base_unit_id = BaseUnit::id,
            .name = Self::name,
            .formatter = Self::formatter,
            .default_precision = Self::default_precision,
            .icon = Self::icon,
            .color = Self::color,
        };
    }
};
 
}  // namespace dimval