network_identity_interface.h

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the Apache 2.0 License.
#pragma once
 
#include "ccf/node_subsystem_interface.h"
 
#include <optional>
#include <string>
#include <vector>
 
namespace ccf
{
  struct NetworkIdentity;
 
  using RawCoseEndorsement = std::vector<uint8_t>;
  using CoseEndorsementsChain = std::vector<RawCoseEndorsement>;
 
  enum class FetchStatus : uint8_t
  {
    Retry,
    Done,
    Failed
  };
 
  class NetworkIdentitySubsystemInterface : public ccf::AbstractNodeSubSystem
  {
  public:
    ~NetworkIdentitySubsystemInterface() override = default;
 
    static char const* get_subsystem_name()
    {
      return "NetworkIdentity";
    }
 
    virtual const std::unique_ptr<NetworkIdentity>& get() = 0;
 
    [[nodiscard]] virtual FetchStatus endorsements_fetching_status() const = 0;
 
    [[nodiscard]] virtual std::optional<CoseEndorsementsChain>
    get_cose_endorsements_chain(ccf::SeqNo seqno) const = 0;
  };
}