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#pragma once
#include <compare>
namespace floormat {
struct Ns
{
explicit constexpr Ns(): stamp{0} {}
template<typename T> requires (std::is_integral_v<T> && std::is_unsigned_v<T>) explicit constexpr Ns(T x) : stamp{x} {}
template<typename T> requires (std::is_integral_v<T> && !std::is_unsigned_v<T>) explicit constexpr Ns(T x) : stamp{uint64_t(x)} { fm_assert(x >= T{0}); }
explicit constexpr operator uint64_t() const { return stamp; }
explicit constexpr operator double() const = delete;
explicit constexpr operator float() const = delete;
friend Ns operator*(const Ns&, const Ns&) = delete;
friend constexpr Ns operator+(const Ns& lhs, const Ns& rhs);
friend constexpr Ns operator-(const Ns& lhs, const Ns& rhs);
template<typename T> requires (std::is_same_v<T, double>) friend Ns operator*(const Ns& lhs, T b);
template<typename T> requires (std::is_integral_v<T> && std::is_unsigned_v<T>) friend constexpr Ns operator*(const Ns& lhs, T rhs);
template<typename T> requires (std::is_integral_v<T> && std::is_signed_v<T> && sizeof(T) < sizeof(uint64_t)) friend constexpr Ns operator*(const Ns&, T);
template<typename T> friend constexpr Ns operator*(T lhs, const Ns& rhs);
friend constexpr uint64_t operator/(const Ns& lhs, const Ns& rhs);
friend constexpr Ns operator/(const Ns& lhs, uint64_t b);
friend constexpr uint64_t operator%(const Ns& lhs, const Ns& rhs);
friend constexpr Ns operator%(const Ns& lhs, uint64_t b);
friend constexpr Ns& operator+=(Ns& lhs, const Ns& rhs);
friend constexpr bool operator==(const Ns& lhs, const Ns& rhs) = default;
friend constexpr std::strong_ordering operator<=>(const Ns& lhs, const Ns& rhs);
friend Debug& operator<<(Debug& dbg, const Ns& box);
uint64_t stamp;
};
constexpr inline Ns Minute{60000000000}, Second{1000000000}, Millisecond{1000000}, Microsecond{1000};
constexpr inline const Ns& Minutes{Minute}, Seconds{Second}, Milliseconds{Millisecond}, Microseconds{Microsecond};
} // namespace floormat
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