syntax = "proto3";
package tendermint.proto.blockchain;

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

import "third_party/proto/gogoproto/gogo.proto";
import "proto/types/block.proto";

// BlockRequest requests a block for a specific height
message BlockRequest {
  int64 height = 1;
}

// NoBlockResponse informs the node that the peer does not have block at the requested height
message NoBlockResponse {
  int64 height = 1;
}

// BlockResponse returns block to the requested
message BlockResponse {
  tendermint.proto.types.Block block = 1 [(gogoproto.nullable) = false];
}

// StatusRequest requests the status of a node (Height & Base)
message StatusRequest {
  int64 height = 1;
  int64 base   = 2;
}

// StatusResponse is a peer response to infrom their status
message StatusResponse {
  int64 height = 1;
  int64 base   = 2;
}

message Message {
  oneof sum {
    BlockRequest    block_request     = 1;
    NoBlockResponse no_block_response = 2;
    BlockResponse   block_response    = 3;
    StatusRequest   status_request    = 4;
    StatusResponse  status_response   = 5;
  }
}