syntax = "proto3";
package cosmos.upgrade.v1beta1;

import "google/protobuf/any.proto";
import "google/api/annotations.proto";
import "cosmos/upgrade/v1beta1/upgrade.proto";

option go_package = "github.com/cosmos/cosmos-sdk/x/upgrade/types";

// Query defines the gRPC upgrade querier service.
service Query {
  // CurrentPlan queries the current upgrade plan.
  rpc CurrentPlan(QueryCurrentPlanRequest) returns (QueryCurrentPlanResponse) {
    option (google.api.http).get = "/cosmos/upgrade/v1beta1/current_plan";
  }

  // AppliedPlan queries a previously applied upgrade plan by its name.
  rpc AppliedPlan(QueryAppliedPlanRequest) returns (QueryAppliedPlanResponse) {
    option (google.api.http).get = "/cosmos/upgrade/v1beta1/applied_plan/{name}";
  }

  // UpgradedConsensusState queries the consensus state that will serve
  // as a trusted kernel for the next version of this chain. It will only be
  // stored at the last height of this chain.
  // UpgradedConsensusState RPC not supported with legacy querier
  // This rpc is deprecated now that IBC has its own replacement
  // (https://github.com/cosmos/ibc-go/blob/2c880a22e9f9cc75f62b527ca94aa75ce1106001/proto/ibc/core/client/v1/query.proto#L54)
  rpc UpgradedConsensusState(QueryUpgradedConsensusStateRequest) returns (QueryUpgradedConsensusStateResponse) {
    option deprecated            = true;
    option (google.api.http).get = "/cosmos/upgrade/v1beta1/upgraded_consensus_state/{last_height}";
  }

  // ModuleVersions queries the list of module versions from state.
  rpc ModuleVersions(QueryModuleVersionsRequest) returns (QueryModuleVersionsResponse) {
    option (google.api.http).get = "/cosmos/upgrade/v1beta1/module_versions";
  }
}

// QueryCurrentPlanRequest is the request type for the Query/CurrentPlan RPC
// method.
message QueryCurrentPlanRequest {}

// QueryCurrentPlanResponse is the response type for the Query/CurrentPlan RPC
// method.
message QueryCurrentPlanResponse {
  // plan is the current upgrade plan.
  Plan plan = 1;
}

// QueryCurrentPlanRequest is the request type for the Query/AppliedPlan RPC
// method.
message QueryAppliedPlanRequest {
  // name is the name of the applied plan to query for.
  string name = 1;
}

// QueryAppliedPlanResponse is the response type for the Query/AppliedPlan RPC
// method.
message QueryAppliedPlanResponse {
  // height is the block height at which the plan was applied.
  int64 height = 1;
}

// QueryUpgradedConsensusStateRequest is the request type for the Query/UpgradedConsensusState
// RPC method.
message QueryUpgradedConsensusStateRequest {
  option deprecated = true;

  // last height of the current chain must be sent in request
  // as this is the height under which next consensus state is stored
  int64 last_height = 1;
}

// QueryUpgradedConsensusStateResponse is the response type for the Query/UpgradedConsensusState
// RPC method.
message QueryUpgradedConsensusStateResponse {
  option deprecated = true;
  reserved 1;

  bytes upgraded_consensus_state = 2;
}

// QueryModuleVersionsRequest is the request type for the Query/ModuleVersions
// RPC method.
message QueryModuleVersionsRequest {
  // module_name is a field to query a specific module
  // consensus version from state. Leaving this empty will
  // fetch the full list of module versions from state
  string module_name = 1;
}

// QueryModuleVersionsResponse is the response type for the Query/ModuleVersions
// RPC method.
message QueryModuleVersionsResponse {
  // module_versions is a list of module names with their consensus versions.
  repeated ModuleVersion module_versions = 1;
}
