71 lines
1.8 KiB
Dart
71 lines
1.8 KiB
Dart
import 'dart:io';
|
|
|
|
import 'dart_tutorial/addressbook.pb.dart';
|
|
|
|
// This function fills in a Person message based on user input.
|
|
Person promptForAddress() {
|
|
Person person = Person();
|
|
|
|
print('Enter person ID: ');
|
|
String input = stdin.readLineSync();
|
|
person.id = int.parse(input);
|
|
|
|
print('Enter name');
|
|
person.name = stdin.readLineSync();
|
|
|
|
print('Enter email address (blank for none) : ');
|
|
String email = stdin.readLineSync();
|
|
if (email.isNotEmpty) {
|
|
person.email = email;
|
|
}
|
|
|
|
while (true) {
|
|
print('Enter a phone number (or leave blank to finish): ');
|
|
String number = stdin.readLineSync();
|
|
if (number.isEmpty) break;
|
|
|
|
Person_PhoneNumber phoneNumber = Person_PhoneNumber();
|
|
|
|
phoneNumber.number = number;
|
|
print('Is this a mobile, home, or work phone? ');
|
|
|
|
String type = stdin.readLineSync();
|
|
switch (type) {
|
|
case 'mobile':
|
|
phoneNumber.type = Person_PhoneType.MOBILE;
|
|
break;
|
|
case 'home':
|
|
phoneNumber.type = Person_PhoneType.HOME;
|
|
break;
|
|
case 'work':
|
|
phoneNumber.type = Person_PhoneType.WORK;
|
|
break;
|
|
default:
|
|
print('Unknown phone type. Using default.');
|
|
}
|
|
person.phones.add(phoneNumber);
|
|
}
|
|
|
|
return person;
|
|
}
|
|
|
|
// Reads the entire address book from a file, adds one person based
|
|
// on user input, then writes it back out to the same file.
|
|
main(List<String> arguments) {
|
|
if (arguments.length != 1) {
|
|
print('Usage: add_person ADDRESS_BOOK_FILE');
|
|
exit(-1);
|
|
}
|
|
|
|
File file = File(arguments.first);
|
|
AddressBook addressBook;
|
|
if (!file.existsSync()) {
|
|
print('File not found. Creating new file.');
|
|
addressBook = AddressBook();
|
|
} else {
|
|
addressBook = AddressBook.fromBuffer(file.readAsBytesSync());
|
|
}
|
|
addressBook.people.add(promptForAddress());
|
|
file.writeAsBytes(addressBook.writeToBuffer());
|
|
}
|