syntax = "proto3";

import "google/protobuf/empty.proto";
import "types/types.proto";

package txpool_control;

option go_package = "./txpool;txpool";

message AccountInfoRequest {
  types.H256 block_hash = 1;
  types.H160 account = 2;
}

message AccountInfoReply {
  types.H256 balance = 1;
  uint64 nonce = 2;
}

message BlockStreamRequest {
  oneof start_with {
    google.protobuf.Empty latest = 1;
    types.H256 block_hash = 2;
  }
}

message AccountInfo {
  types.H160 address = 1;
  types.H256 balance = 2;
  uint64 nonce = 3;
}

message AppliedBlock {
  types.H256 hash = 1;
  types.H256 parent_hash = 2;
  repeated AccountInfo changed_accounts = 3;
}

message RevertedBlock {
  types.H256 reverted_hash = 1;
  repeated bytes reverted_transactions = 2;
  types.H256 new_hash = 3;
  types.H256 new_parent = 4;
  repeated AccountInfo reverted_accounts = 5;
}

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

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