utils.hpp

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#ifndef IROHA_VALIDATION_UTILS
#define IROHA_VALIDATION_UTILS

#include <string>
#include <vector>

#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/any_range.hpp>

#include "interfaces/common_objects/types.hpp"

namespace iroha {
  namespace validation {
    template <typename PublicKeys>
    inline bool signaturesSubset(
        const shared_model::interface::types::SignatureRangeType &signatures,
        const PublicKeys &public_keys) {
      return std::all_of(
          signatures.begin(),
          signatures.end(),
          [&public_keys](auto const &signature) {
            return std::find_if(public_keys.begin(),
                                public_keys.end(),
                                [&signature](auto const &public_key) {
                                  return signature.publicKey() == public_key;
                                })
                != public_keys.end();
          });
    }

    template <typename Peers>
    inline bool peersSubset(
        const shared_model::interface::types::SignatureRangeType &signatures,
        const Peers &peers) {
      using shared_model::interface::types::PublicKeyHexStringView;
      return signaturesSubset(
          signatures, peers | boost::adaptors::transformed([](auto const &p) {
                        return PublicKeyHexStringView{p->pubkey()};
                      }));
    }

  }  // namespace validation
}  // namespace iroha

#endif  // IROHA_VALIDATION_UTILS