src/main/java/design/controller/userinput/Menu.java


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package design.controller.userinput;

import java.util.*;

public class Menu {
    private final String title;
    private final List<MenuOption> menuOptions;

    public Menu(String title, List<MenuOption> menuOptions) {
        this.title = title;
        this.menuOptions = menuOptions;
    }

    public Menu(String title) {
        this.title = title;
        this.menuOptions = new ArrayList<>();
    }

    public boolean remove(MenuOption menuOption) {
        return menuOptions.remove(menuOption);
    }

    public boolean addAll(List<MenuOption> c) {
        return menuOptions.addAll(c);
    }

    public boolean addAll(MenuOption... c) {
        return addAll(Arrays.stream(c).toList());
    }

    public boolean add(MenuOption menuOption) {
        return menuOptions.add(menuOption);
    }

    public void present() {
        System.out.printf("-- %s --\n", title.toUpperCase());
        for (int i = 0; i < menuOptions.size(); i++) {
            MenuOption menuOption = menuOptions.get(i);
            System.out.printf("%s: %s\n", i, menuOption.getName());
        }
        Scanner sc = new Scanner(System.in);
        var line = sc.nextLine();
        var split = line.split(" ");

        try {
            int i = Integer.parseInt(split[0]);
            menuOptions.get(i).onCommand(Arrays.copyOfRange(split, 1, split.length));
        } catch (Exception ex) {
            System.err.printf("Invalid option \"%s\"\n", line);
            present();
        }
    }

}