include/odhtdb/InfoHash.hpp


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#pragma once

#include <array>
#include <stdexcept>
#include <sibs/PubsubKey.hpp>
#include <cassert>
#include "types.hpp"

namespace odhtdb
{
    class InfoHashException : public std::runtime_error
    {
    public:
        InfoHashException(const std::string &errMsg) : std::runtime_error(errMsg) {}
    };

    class InfoHash
    {
    public:
        InfoHash();
        InfoHash(const u8 *data, const size_t size);

        // Throws InfoHashException on error
        static InfoHash generateHash(const u8 *data, const size_t size);

        u8& operator [] (size_t index)
        {
            assert(index < key.data.size());
            return key.data[index];
        }

        const sibs::PubsubKey& getKey() const { return key; }

        bool operator == (const InfoHash &other) const;
        bool operator != (const InfoHash &other) const;
    private:
        sibs::PubsubKey key;
    };
}