syntax = "proto3";

package foo;

message Person {
  string name = 1;
  int32 id = 2;
  string email = 3;

  enum PhoneType {
    MOBILE = 0;
    HOME = 1;
    WORK = 2;
  }

  message PhoneNumber {
    message Comment {
      string comment = 1;
    }

    string number = 1;
    PhoneType type = 2;
    Comment comment = 3;
  }

  repeated PhoneNumber phone = 4;
}

message LookupResult
{
  Person person = 1;
}

message Name {
  string name = 1;
};

service DirLookup {
  rpc ByName (Name) returns (LookupResult);
}