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wyatt-packages/packages/wyatt_cli_toolbox/lib/src/prompt/boolean_question.dart
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2022-05-22 23:28:23 +02:00

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1.9 KiB
Dart

// Copyright (C) 2022 WYATT GROUP
// Please see the AUTHORS file for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
import 'dart:convert';
import 'dart:io';
import 'package:wyatt_cli_toolbox/src/prompt/question.dart';
import 'package:wyatt_cli_toolbox/src/sequences/sequences.dart';
import 'package:wyatt_cli_toolbox/src/stylish/stylish.dart';
class BooleanQuestion extends Question<bool> {
BooleanQuestion(
String question, {
this.defaultTo = false,
String? comment,
required String identifier,
}) : super(QuestionType.booleanQuestion, identifier, question, comment);
bool? answer;
final bool defaultTo;
@override
String formatComment() => (super.formatComment().trim().isEmpty)
? defaultTo
? ' (Y/n) '.dim()
: ' (y/N) '.dim()
: super.formatComment();
@override
bool ask() {
stdout.write(formatQuestion());
String input = '';
input = stdin.readLineSync(encoding: utf8)!.trim();
stdout.write(Sequences.escMoveUp(1) + formatQuestion());
if (input.isEmpty) {
answer = defaultTo;
} else {
answer = input[0] == 'y' || input[0] == 'Y';
}
String replaceStr =
'\r${formatQuestion()}${Sequences.escClearLineFromCursorToEnd()}';
replaceStr += answer! ? 'Yes'.blue() : 'No'.blue();
stdout.writeln(replaceStr);
return answer!;
}
}