uuid.hpp

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#ifndef NEFORCE_CORE_UTILITY_UUID_HPP__
#define NEFORCE_CORE_UTILITY_UUID_HPP__

 
#include "NeForce/core/interface/istringify.hpp"
#include "NeForce/core/memory/memory_view.hpp"
#include "NeForce/core/numeric/random.hpp"
#include "NeForce/core/utility/optional.hpp"
NEFORCE_BEGIN_NAMESPACE__


class NEFORCE_API uuid : public istringify<uuid>, public ihashable<uuid> {
private:
    array<byte_t, 16> data_; 
 
    static random_mt& tl_rng() noexcept;
 
public:
    uuid() noexcept { memory_zero(data_.data(), data_.size()); }

    explicit uuid(memory_view<const byte_t, 16> bytes) noexcept;

    explicit uuid(string_view bytes);

    void generate_v4() noexcept;

    void generate_v7() noexcept;

    NEFORCE_NODISCARD int version() const noexcept { return (data_[6] >> 4) & 0x0F; }

    NEFORCE_NODISCARD bool is_v4() const noexcept { return version() == 4; }

    NEFORCE_NODISCARD bool is_v7() const noexcept { return version() == 7; }

    NEFORCE_NODISCARD optional<uint64_t> timestamp_v7() const noexcept;

    NEFORCE_NODISCARD string to_string() const;

    NEFORCE_NODISCARD memory_view<const byte_t, 16> bytes() const noexcept { return {data_}; }

    NEFORCE_NODISCARD auto begin() const noexcept { return data_.begin(); }

    NEFORCE_NODISCARD auto end() const noexcept { return data_.end(); }

    static uuid v4() noexcept;

    static uuid v7() noexcept;
 
    NEFORCE_NODISCARD size_t to_hash() const noexcept { return FNV_hash(data_.data(), data_.size()); }
};
 // UUID
 
 
NEFORCE_BEGIN_LITERALS__


NEFORCE_NODISCARD inline uuid operator""_uuid(const char* str, size_t len) { return uuid(string_view(str, len)); }
 // UserLiterals
 
NEFORCE_END_LITERALS__
 
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_CORE_UTILITY_UUID_HPP__