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//
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// An integration test service that covers all the method signature permutations
// of unary/streaming requests/responses.
syntax = "proto3";

import "test/proto/messages.proto";
import "test/proto/perf_tests/perf_stats.proto";

package grpc.testing;

enum ClientType {
  SYNCHRONOUS_CLIENT = 0;
  ASYNC_CLIENT = 1;
}

enum ServerType {
  SYNCHRONOUS_SERVER = 0;
  ASYNC_SERVER = 1;
}

enum RpcType {
  UNARY = 0;
  STREAMING = 1;
}

message PoissonParams {
  double offered_load = 1;
}

message UniformParams {
  double interarrival_lo = 1;
  double interarrival_hi = 2;
}

message DeterministicParams {
  double offered_load = 1;
}

message ParetoParams {
  double interarrival_base = 1;
  double alpha = 2;
}

message LoadParams {
  oneof load {
    PoissonParams poisson = 1;
    UniformParams uniform = 2;
    DeterministicParams determ = 3;
    ParetoParams pareto = 4;
    // No need to separately specify Closed-Loop as that
    // will just be the absence of any of the above
  };
}

message ClientConfig {
  repeated string server_targets = 1;
  ClientType client_type = 2;
  bool use_tls = 3;
  int32 outstanding_rpcs_per_channel = 4;
  int32 client_channels = 5;
  int32 payload_size = 6;
  // only for async client:
  int32 async_client_threads = 7;
  RpcType rpc_type = 8;
  string host = 9;
  LoadParams load_params = 11;
}

message ClientStatus {
  ClientStats stats = 1;
}

// Request current stats
message Mark {
}

message ClientArgs {
  oneof argtype {
    ClientConfig setup = 1;
    Mark mark = 2;
  }
}

message ServerConfig {
  ServerType server_type = 1;
  int32 threads = 2;
  bool use_tls = 3;
  string host = 4;
}

message ServerArgs {
  oneof argtype {
    ServerConfig setup = 1;
    Mark mark = 2;
  }
}

message ServerStatus {
  ServerStats stats = 1;
  int32 port = 2;
}

service TestService {
  // One request followed by one response.
  // The server returns the client payload as-is.
  rpc UnaryCall(SimpleRequest) returns (SimpleResponse);

  // One request followed by one response.
  // The server returns the client payload as-is.
  rpc StreamingCall(stream SimpleRequest) returns (stream SimpleResponse);
}

service Worker {
  // Start server with specified workload
  rpc RunServer(stream ServerArgs) returns (stream ServerStatus);

  // Start client with specified workload
  rpc RunClient(stream ClientArgs) returns (stream ClientStatus);
}