syntax = "proto3";

package gosuvpb;

message NopRequest {}

message Response {
  int32 code = 1;
  string message = 2;
}

message Request {
  string name = 1;
}

message TailRequest {
  string name = 1;
  int32 number = 2; // the location of number lines
  bool follow = 3;
}
message ProgramInfo {
  string name = 1;
  string command = 2;
  string dir = 3;
}

message ProgramStatus {
  string name = 1;
  string status = 2;
  string extra = 3;
}

message StatusResponse {
  repeated ProgramStatus programs = 1;
}

message LogLine {
  string line = 1;
}

service GoSuv {
  rpc Shutdown(NopRequest) returns (Response) {}
  rpc Version(NopRequest)  returns (Response) {}
  rpc Status(NopRequest) returns (StatusResponse) {}
}

service Program {
  rpc Start(Request) returns (Response) {}
  rpc Stop(Request) returns (Response) {}
  rpc Tail(TailRequest) returns (stream LogLine) {}
}