/*
 * @topic T00839 Using DicePair with rollSeries() Nov 10 2015
 * @brief Menu class
 */
package diceroll;

import java.util.Scanner;

public class Menu {
    public static Scanner sc = new Scanner(System.in);

    public static final int CHOICE_UNKNOWN = 0;
    public static final int CHOICE_ROLL = 1;
    public static final int CHOICE_ROLL_SERIES = 2;
    public static final int CHOICE_QUIT = 3;

    private String strChoices;
    private int choice;
    private int choice_range;

    // constructors
    public Menu() {
        strChoices = "Make your choice:\n";
        choice = CHOICE_UNKNOWN;
        choice_range = 0;
    }

    // operations
    public void attach(String aChoice) {
        strChoices += aChoice;
        strChoices += "\n";
        ++choice_range;
    }

    public int getUserChoice() {
        System.out.print(strChoices);
        //return Validator.getInt(sc, ">>> ");
        System.out.print(">>> ");
        for (;;) {
            try {
                choice = sc.nextInt();
                if ( choice < 1 || choice > choice_range ) {
                    System.out.print(
                            "Sorry, the input should be [1-"
                                    +choice_range+
                                    "], try again: ");
                    continue;
                }
                return choice;
            } catch (java.util.InputMismatchException ex) {
                sc.nextLine();
                //ex.printStackTrace();
                System.out.print("Sorry, bad input, try again: ");
            } finally {
                //System.out.print("this silly message is always printed! ");
            }
        }//forever

        // TODO -- validate user selection
    }
}//class Menu