syntax = "proto3";
package ibc.client;

option go_package = "github.com/cosmos/cosmos-sdk/x/ibc/02-client/types";

import "gogoproto/gogo.proto";
import "google/protobuf/any.proto";

// IdentifiedClientState defines a client state with additional client
// identifier field.
message IdentifiedClientState {
  // client identifier
  string client_id = 1 [(gogoproto.moretags) = "yaml:\"client_id\""];
  // client state
  google.protobuf.Any client_state = 2
      [(gogoproto.moretags) = "yaml:\"client_state\""];
}

// ClientConsensusStates defines all the stored consensus states for a given
// client.
message ClientConsensusStates {
  // client identifier
  string client_id = 1 [(gogoproto.moretags) = "yaml:\"client_id\""];
  // consensus states associated with the client
  repeated google.protobuf.Any consensus_states = 2
      [(gogoproto.moretags) = "yaml:\"consensus_states\""];
}

// MsgCreateClient defines a message to create an IBC client
message MsgCreateClient {
  // client unique identifier
  string client_id = 1 [(gogoproto.moretags) = "yaml:\"client_id\""];
  // light client state
  google.protobuf.Any client_state = 2
      [(gogoproto.moretags) = "yaml:\"client_state\""];
  // consensus state associated with the client that corresponds to a given
  // height.
  google.protobuf.Any consensus_state = 3
      [(gogoproto.moretags) = "yaml:\"consensus_state\""];
  // signer address
  bytes signer = 4
      [(gogoproto.casttype) = "github.com/cosmos/cosmos-sdk/types.AccAddress"];
}

// MsgUpdateClient defines an sdk.Msg to update a IBC client state using
// the given header.
message MsgUpdateClient {
  // client unique identifier
  string client_id = 1 [(gogoproto.moretags) = "yaml:\"client_id\""];
  // header to update the light client
  google.protobuf.Any header = 2;
  // signer address
  bytes signer = 3
      [(gogoproto.casttype) = "github.com/cosmos/cosmos-sdk/types.AccAddress"];
}

// MsgSubmitMisbehaviour defines an sdk.Msg type that submits Evidence for
// light client misbehaviour.
message MsgSubmitMisbehaviour {
  // client unique identifier
  string client_id = 1 [(gogoproto.moretags) = "yaml:\"client_id\""];
  // misbehaviour used for freezing the light client
  google.protobuf.Any misbehaviour = 2;
  // signer address
  bytes signer = 3
      [(gogoproto.casttype) = "github.com/cosmos/cosmos-sdk/types.AccAddress"];
}

// Height is a monotonically increasing data type
// that can be compared against another Height for the purposes of updating and
// freezing clients
//
// Normally the EpochHeight is incremented at each height while keeping epoch
// number the same However some consensus algorithms may choose to reset the
// height in certain conditions e.g. hard forks, state-machine breaking changes
// In these cases, the epoch number is incremented so that height continues to
// be monitonically increasing even as the EpochHeight gets reset
message Height {
  option (gogoproto.goproto_stringer) = false;

  // the epoch that the client is currently on
  uint64 epoch_number = 1 [(gogoproto.moretags) = "yaml:\"epoch_number\""];
  // the height within the given epoch
  uint64 epoch_height = 2 [(gogoproto.moretags) = "yaml:\"epoch_height\""];
}