/*
 * Copyright (C)2005-2016 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
package haxelib.client;

class Cli {
	public static var defaultAnswer:Null<Bool>;

	public static function ask(question:String):Bool {
		if (defaultAnswer != null)
			return defaultAnswer;

		while (true) {
			Sys.print(question + " [y/n/a] ? ");
			try {
				switch (Sys.stdin().readLine()) {
					case "n": return false;
					case "y": return true;
					case "a": return defaultAnswer = true;
				}
			} catch (e:haxe.io.Eof) {
				Sys.println("n");
				return false;
			}
		}
		return false;
	}
}
