syntax = "proto3";

import "google/protobuf/empty.proto";

package txpool_control;

message AccountInfoRequest {
  bytes block_hash = 1;
  bytes account = 2;
}
message AccountInfoReply {
  bytes balance = 1;
  bytes nonce = 2;
}

message BlockStreamRequest {
  oneof start_with {
    google.protobuf.Empty latest = 1;
    bytes block_hash = 2;
  }
}

message AccountInfo {
  bytes address = 1;
  bytes balance = 2;
  bytes nonce = 3;
}

message AccountDiff {
  oneof diff {
    AccountInfo changed = 1;
    bytes deleted = 2;
  }
}

message AppliedBlock {
  bytes hash = 1;
  bytes parent_hash = 2;
  repeated AccountDiff account_diffs = 3;
}

message RevertedBlock {
  bytes reverted_hash = 1;
  repeated bytes reverted_transactions = 2;
  bytes new_hash = 3;
  bytes new_parent = 4;
  repeated AccountDiff new_state = 5;
}

message BlockDiff {
  oneof diff {
    AppliedBlock applied = 1;
    RevertedBlock reverted = 2;
  }
}

service TxpoolControl {
  rpc AccountInfo(AccountInfoRequest) returns(AccountInfoReply);
  rpc BlockStream(BlockStreamRequest) returns(stream BlockDiff);
}