//
// Created by Kirill Zhukov on 20.04.2025.
//

#ifndef HASHSTRUCTURE_H
#define HASHSTRUCTURE_H

#include <cstdint>
#include <cstdlib>
#include <string>

#include "utils/hash/xxhash/xxhash.h"


namespace usub::utils
{
    struct alignas(16) Hash128
    {
        uint64_t low;
        uint64_t high;

        Hash128() : low(0), high(0)
        {
        }

        bool operator<(const Hash128& other) const
        {
            return (this->high == other.high) ? (this->low < other.low) : (this->high < other.high);
        }

        bool operator==(const Hash128& other) const
        {
            return this->low == other.low && this->high == other.high;
        }
    };

    inline Hash128 compute_hash128(const void* data, size_t length)
    {
        Hash128 h;
        XXH128_hash_t hash = XXH3_128bits(data, length);
        h.low = hash.low64;
        h.high = hash.high64;
        return h;
    }

    inline Hash128 compute_hash128(const std::string& s)
    {
        return compute_hash128(s.data(), s.size());
    }
} // namespace usub::utils


#endif //HASHSTRUCTURE_H