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

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

import "third_party/proto/gogoproto/gogo.proto";
import "google/protobuf/duration.proto";

// ConsensusParams contains consensus critical parameters that determine the
// validity of blocks.
message ConsensusParams {
  BlockParams     block     = 1 [(gogoproto.nullable) = false];
  EvidenceParams  evidence  = 2 [(gogoproto.nullable) = false];
  ValidatorParams validator = 3 [(gogoproto.nullable) = false];
}

// BlockParams contains limits on the block size.
message BlockParams {
  // Note: must be greater than 0
  int64 max_bytes = 1;
  // Note: must be greater or equal to -1
  int64 max_gas = 2;
  // Minimum time increment between consecutive blocks (in milliseconds)
  // Not exposed to the application.
  int64 time_iota_ms = 3;
}

// EvidenceParams determine how we handle evidence of malfeasance.
message EvidenceParams {
  option (gogoproto.populate) = true;
  option (gogoproto.equal)    = true;
  // Note: must be greater than 0
  int64                    max_age_num_blocks = 1;
  google.protobuf.Duration max_age_duration   = 2
      [(gogoproto.nullable) = false, (gogoproto.stdduration) = true];
}

// ValidatorParams restrict the public key types validators can use.
// NOTE: uses ABCI pubkey naming, not Amino names.
message ValidatorParams {
  option (gogoproto.populate) = true;
  option (gogoproto.equal)    = true;

  repeated string pub_key_types = 1;
}

// HashedParams is a subset of ConsensusParams.
// It is amino encoded and hashed into
// the Header.ConsensusHash.
message HashedParams {
  int64 block_max_bytes = 1;
  int64 block_max_gas   = 2;
}