weekday_indexed.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2023 Tobias Hienzsch
 
#ifndef TETL_CHRONO_WEEKDAY_INDEXED_HPP
#define TETL_CHRONO_WEEKDAY_INDEXED_HPP
 
#include <etl/_chrono/weekday.hpp>
 
namespace etl::chrono {
 
/// \ingroup chrono
struct weekday_indexed {
    weekday_indexed() = default;
 
    constexpr weekday_indexed(etl::chrono::weekday const& wd, unsigned index) noexcept
        : _wd{wd}
        , _index{static_cast<etl::uint8_t>(index)}
    {
    }
 
    [[nodiscard]] constexpr auto weekday() const noexcept -> etl::chrono::weekday
    {
        return _wd;
    }
 
    [[nodiscard]] constexpr auto index() const noexcept -> unsigned
    {
        return _index;
    }
 
    [[nodiscard]] constexpr auto ok() const noexcept -> bool
    {
        return weekday().ok() and ((_index >= 1) and (_index <= 5));
    }
 
    friend constexpr auto operator==(weekday_indexed const& lhs, weekday_indexed const& rhs) noexcept -> bool
    {
        return lhs.weekday() == rhs.weekday() and lhs.index() == rhs.index();
    }
 
private:
    etl::chrono::weekday _wd;
    etl::uint8_t _index;
};
 
constexpr auto weekday::operator[](unsigned index) const noexcept -> weekday_indexed
{
    return {*this, index};
}
 
} // namespace etl::chrono
 
#endif // TETL_CHRONO_WEEKDAY_INDEXED_HPP