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import 'dart:io';
import 'dart_tutorial/addressbook.pb.dart';
/// This function fills in a Person message based on user input.
Person promptForAddress() {
final person = Person();
print('Enter person ID: ');
final input = stdin.readLineSync();
person.id = int.parse(input);
print('Enter name');
person.name = stdin.readLineSync();
print('Enter email address (blank for none) : ');
final email = stdin.readLineSync();
if (email.isNotEmpty) person.email = email;
while (true) {
print('Enter a phone number (or leave blank to finish): ');
final number = stdin.readLineSync();
if (number.isEmpty) break;
final phoneNumber = Person_PhoneNumber()..number = number;
print('Is this a mobile, home, or work phone? ');
final 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.
void main(List<String> arguments) {
if (arguments.length != 1) {
print('Usage: add_person ADDRESS_BOOK_FILE');
exit(-1);
}
final 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());
}
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