package tutorial;
option java_package = "com.example.tutorial";
option java_outer_classname = "AddressBookProtos";
message Person {
  string name = 1;
  int32 id = 2;  // Unique ID number for this person.
  string email = 3;
  enum PhoneType {
    MOBILE = 0;
    HOME = 1;
    WORK = 2;
  }
  message PhoneNumber {
    string number = 1;
    PhoneType type = 2;
  }
  repeated PhoneNumber phones = 4;
}
// Our address book file is just one of these.
message AddressBook {
  repeated Person people = 1;
}

AddressBook.Builder addressBook = AddressBook.newBuilder();
try {
  FileInputStream input = new FileInputStream(args[0]);
  try {
    addressBook.mergeFrom(input);
  } finally {
    try { input.close(); } catch (Throwable ignore) {}
  }
} catch (FileNotFoundException e) {
  System.out.println(args[0] + ": File not found.  Creating a new file.");
}
addressBook.addPeople(
  PromptForAddress(new BufferedReader(new InputStreamReader(System.in)),
                   System.out));
FileOutputStream output = new FileOutputStream(args[0]);
try {
  addressBook.build().writeTo(output);
} finally {
  output.close();
}

for (Person person: addressBook.getPeopleList()) {
  System.out.println("Person ID: " + person.getId());
  System.out.println("  Name: " + person.getName());
  if (!person.getEmail().isEmpty()) {
    System.out.println("  E-mail address: " + person.getEmail());
  }
  for (Person.PhoneNumber phoneNumber : person.getPhonesList()) {
    switch (phoneNumber.getType()) {
      case MOBILE:
        System.out.print("  Mobile phone #: ");
        break;
      case HOME:
        System.out.print("  Home phone #: ");
        break;
      case WORK:
        System.out.print("  Work phone #: ");
        break;
    }
    System.out.println(phoneNumber.getNumber());
  }
}