peer_id.h

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#pragma once
 
#include "core/bytes.h"
 
#include <array>
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
 
namespace librats {
 
class PeerId {
public:
    static constexpr size_t kSize = 32;  
 
    PeerId() = default;
 
    static PeerId from_public_key(const uint8_t* key, size_t len);
    static PeerId from_public_key(ByteView key) { return from_public_key(key.data(), key.size()); }
 
    static std::optional<PeerId> from_bytes(ByteView raw);
 
    static std::optional<PeerId> from_hex(std::string_view hex);
 
    std::string to_hex() const;
    std::string short_hex() const;  
 
    const std::array<uint8_t, kSize>& bytes() const noexcept { return bytes_; }
    bool is_zero() const noexcept;
 
    bool operator==(const PeerId& o) const noexcept { return bytes_ == o.bytes_; }
    bool operator!=(const PeerId& o) const noexcept { return bytes_ != o.bytes_; }
    bool operator<(const PeerId& o) const noexcept { return bytes_ < o.bytes_; }
 
    struct Hash {
        size_t operator()(const PeerId& id) const noexcept;
    };
 
private:
    std::array<uint8_t, kSize> bytes_{};
};
 
} // namespace librats