syntax = "proto3";
package merkle;

// For more information on gogo.proto, see:
// https://github.com/gogo/protobuf/blob/master/extensions.md
import "gogo.proto";

option (gogoproto.marshaler_all) = true;
option (gogoproto.unmarshaler_all) = true;
option (gogoproto.sizer_all) = true;

option (gogoproto.populate_all) = true;
option (gogoproto.equal_all) = true;

//----------------------------------------
// Message types

// ProofOp defines an operation used for calculating Merkle root
// The data could be arbitrary format, providing nessecary data
// for example neighbouring node hash
message ProofOp {
  string type = 1;
  bytes key = 2;
  bytes data = 3;
}

// Proof is Merkle proof defined by the list of ProofOps
message Proof {
  repeated ProofOp ops = 1 [(gogoproto.nullable)=false];
}