// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package spanner_bench;
option java_multiple_files = true;
option java_package = "com.google.cloud.benchwrapper";

message Singer {
  int64 id = 1;
  string first_name = 2;
  string last_name = 3;
  string singer_info = 4;
}

message Album {
  int64 id = 1;
  int64 singer_id = 2;
  string album_title = 3;
}

message ReadQuery {
  // The query to use in the read call.
  string query = 1;
}

message InsertQuery {
  // The query to use in the insert call.
  repeated Singer singers = 1;
  repeated Album albums = 2;
}

message UpdateQuery {
  // The queries to use in the update call.
  repeated string queries = 1;
}

message EmptyResponse {}

service SpannerBenchWrapper {
  // Read represents operations like Go's ReadOnlyTransaction.Query, Java's
  // ReadOnlyTransaction.executeQuery, Python's snapshot.read, and Node's
  // Transaction.Read.
  //
  // It will typically be used to read many items.
  rpc Read(ReadQuery) returns (EmptyResponse) {}

  // Insert represents operations like Go's Client.Apply, Java's
  // DatabaseClient.writeAtLeastOnce, Python's transaction.commit, and Node's
  // Transaction.Commit.
  //
  // It will typically be used to insert many items.
  rpc Insert(InsertQuery) returns (EmptyResponse) {}

  // Update represents operations like Go's ReadWriteTransaction.BatchUpdate,
  // Java's TransactionRunner.run, Python's Batch.update, and Node's
  // Transaction.BatchUpdate.
  //
  // It will typically be used to update many items.
  rpc Update(UpdateQuery) returns (EmptyResponse) {}
}