syntax = "proto3";
package ibc.client;

import "cosmos/base/query/v1beta1/pagination.proto";
import "ibc/client/client.proto";
import "google/protobuf/any.proto";
import "google/api/annotations.proto";

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

// Query provides defines the gRPC querier service
service Query {
  // ClientState queries an IBC light client.
  rpc ClientState(QueryClientStateRequest) returns (QueryClientStateResponse) {
    option (google.api.http).get = "/ibc/client/v1beta1/client_states/{client_id}";
  }

  // ClientStates queries all the IBC light clients of a chain.
  rpc ClientStates(QueryClientStatesRequest) returns (QueryClientStatesResponse) {
    option (google.api.http).get = "/ibc/client/v1beta1/client_states";
  }

  // ConsensusState queries a consensus state associated with a client state at a given height.
  rpc ConsensusState(QueryConsensusStateRequest) returns (QueryConsensusStateResponse) {
    option (google.api.http).get = "/ibc/client/v1beta1/consensus_states/{client_id}/{height}";
  }

  // ConsensusStates queries all the consensus state associated with a given client.
  rpc ConsensusStates(QueryConsensusStatesRequest) returns (QueryConsensusStatesResponse) {
    option (google.api.http).get = "/ibc/client/v1beta1/consensus_states/{client_id}";
  }
}

// QueryClientStateRequest is the request type for the Query/ClientState RPC
// method
message QueryClientStateRequest {
  // client state unique identifier
  string client_id = 1;
}

// QueryClientStateResponse is the response type for the Query/ClientState RPC
// method. Besides the client state, it includes a proof and the height from
// which the proof was retrieved.
message QueryClientStateResponse {
  // client state associated with the request identifier
  google.protobuf.Any client_state = 1;
  // merkle proof of existence
  bytes proof = 2;
  // merkle proof path
  string proof_path = 3;
  // height at which the proof was retrieved
  uint64 proof_height = 4;
}

// QueryClientStatesRequest is the request type for the Query/ClientStates RPC
// method
message QueryClientStatesRequest {
  // pagination request
  cosmos.base.query.v1beta1.PageRequest pagination = 1;
}

// QueryClientStatesResponse is the response type for the Query/ClientStates RPC
// method.
message QueryClientStatesResponse {
  // list of stored ClientStates of the chain.
  repeated IdentifiedClientState client_states = 1;
  // pagination response
  cosmos.base.query.v1beta1.PageResponse pagination = 2;
}

// QueryConsensusStateRequest is the request type for the Query/ConsensusState RPC method. Besides
// the consensus state, it includes a proof and the height from which the proof was retrieved.
message QueryConsensusStateRequest {
  // client identifier
  string client_id = 1;
  // consensus state height
  uint64 height = 2;
  // latest_height overrrides the height field and queries the latest stored ConsensusState
  bool latest_height = 3;
}

// QueryConsensusStateResponse is the response type for the Query/ConsensusState RPC method
message QueryConsensusStateResponse {
  // consensus state associated with the client identifier at the given height
  google.protobuf.Any consensus_state = 1;
  // merkle proof of existence
  bytes proof = 2;
  // merkle proof path
  string proof_path = 3;
  // height at which the proof was retrieved
  uint64 proof_height = 4;
}

// QueryConsensusStatesRequest is the request type for the Query/ConsensusStates RPC method.
message QueryConsensusStatesRequest {
  // client identifier
  string client_id = 1;
  // pagination request
  cosmos.base.query.v1beta1.PageRequest pagination = 2;
}

// QueryConsensusStatesResponse is the response type for the Query/ConsensusStates RPC method
message QueryConsensusStatesResponse {
  // consensus states associated with the identifier
  repeated google.protobuf.Any consensus_states = 1;
  // pagination response
  cosmos.base.query.v1beta1.PageResponse pagination = 2;
}