package com.gnarly;

import java.util.Scanner;

public class Main {

	private static final Scanner scanner = new Scanner(System.in);

	private static final String USERNAME = "Gnarly";
	private static final String PASSWORD = "123";

	private String username;
	private String password;

	public static void main(String[] args) {
		new Main();
	}

	public Main() {
		askForUsername();
		askForPassword();
		welcomeUser();
	}

	private void askForUsername() {
		do {
			System.out.print("Type your username : ");
			username = scanner.nextLine();
			if (!username.equalsIgnoreCase(USERNAME)) {
				System.out.println("You have entered an invalid username. Try again.");
			}
		} while (!username.equalsIgnoreCase(USERNAME));
	}

	private void askForPassword() {
		do {
			System.out.print("Type your password : ");
			password = scanner.nextLine();
			if (!password.equalsIgnoreCase(PASSWORD)) {
				System.out.println("You have entered an invalid password. Try again.");
			}
		} while (!password.equalsIgnoreCase(PASSWORD));
	}

	private void welcomeUser() {
		System.out.println("Hello, " + username);
		System.out.println("Type .changepassword to change your password.");
		String command = scanner.nextLine();
		if (command.equalsIgnoreCase(".changepassword")) {
			do {
				System.out.println("Please type in your new password : ");
				String newPassword = scanner.nextLine();
				System.out.println("Please retype your new password : ");
				String newPasswordVerify = scanner.nextLine();
				if (newPassword.equalsIgnoreCase(newPasswordVerify)) {
					password = newPassword;
					System.out.println("Your new password has been set.");
				} else {
					System.out.println("The two passwords you entered didn't match. Try again.");
				}
			} while (password.equalsIgnoreCase(PASSWORD));
		}
	}

}