syntax = "proto3";
package tendermint.privval;

option go_package = "github.com/tendermint/tendermint/proto/privval";

import "third_party/proto/gogoproto/gogo.proto";
import "proto/crypto/keys/types.proto";
import "proto/types/types.proto";

message RemoteSignerError {
  int32  code        = 1;
  string description = 2;
}

// PubKeyRequest requests the consensus public key from the remote signer.
message PubKeyRequest {}

// PubKeyResponse is a response message containing the public key.
message PubKeyResponse {
  tendermint.crypto.keys.PublicKey pub_key = 1;
  RemoteSignerError                error   = 2;
}

// SignVoteRequest is a request to sign a vote
message SignVoteRequest {
  tendermint.types.Vote vote = 1;
}

// SignedVoteResponse is a response containing a signed vote or an error
message SignedVoteResponse {
  tendermint.types.Vote vote  = 1;
  RemoteSignerError     error = 2;
}

// SignProposalRequest is a request to sign a proposal
message SignProposalRequest {
  tendermint.types.Proposal proposal = 1 [(gogoproto.nullable) = false];
}

// SignedProposalResponse is response containing a signed proposal or an error
message SignedProposalResponse {
  tendermint.types.Proposal proposal = 1;
  RemoteSignerError         error    = 2;
}

// PingRequest is a request to confirm that the connection is alive.
message PingRequest {}

// PingResponse is a response to confirm that the connection is alive.
message PingResponse {}

message Message {
  oneof sum {
    PubKeyRequest          pub_key_request          = 1;
    PubKeyResponse         pub_key_response         = 2;
    SignVoteRequest        sign_vote_request        = 3;
    SignedVoteResponse     signed_vote_response     = 4;
    SignProposalRequest    sign_proposal_request    = 5;
    SignedProposalResponse signed_proposal_response = 6;
    PingRequest            ping_request             = 7;
    PingResponse           ping_response            = 8;
  }
}