package one;

import java.util.Scanner;

public class JavaBikes1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		System.out.println("WELCOME");

		Scanner input = new Scanner(System.in);

		// Prompts user's names
		System.out.print("Enter your first and last name: ");
		String name = input.nextLine();

		// Prompts post code
		System.out.print("Enter your postal code: ");
		int postCode = input.nextInt();
		while (postCode > 2501 || postCode < 1000) {
			System.out.println("Please enter a valid 4 digit postal code for the Copenhagen area: ");
			postCode = input.nextInt();
		}

		// Prompts phone number
		System.out.print("Enter your phone number: ");
		int phoneNumber = input.nextInt();
		String phoneNumber1 = Integer.toString(phoneNumber);
		int length = phoneNumber1.length();
		while (length != 8)  {
			System.out.println("Please enter a valid 8 digit phone number: ");
			phoneNumber = input.nextInt();
		}

		// Prompts date of birth
		System.out.print("Enter your date of birth (i.e. dd-mm-yyyy): ");
		String dateOfBirth = input.nextLine();
		int dobLenght = dateOfBirth.length();
		input.nextLine();
		while (dobLenght != 9) {
			System.out.println("Please enter a valid date of birth in the format mm-dd-yyyy: ");
			dateOfBirth = input.nextLine();
		}

		// Prompts CPR
		System.out.print("Enter your CPR (i.e. XXXXXX-XXXX): ");
		String cpr = input.nextLine();
		int cprLenght = cpr.length();
		while (cprLenght < 11 || cprLenght < 10) {
			System.out.println("Please enter a valid CPR in the format XXXXXX-XXXX: ");
			cpr = input.nextLine();
			}

		// Creates and displays username and password
		String username = createUsername(name);
		String password = createPassword(name, cpr);

		System.out.println("Your username is \"" + username + "\" and your password is \"" + password + "\"");

		System.out.print("Your profile is stored. Press 1 for exit and 2 for login: ");
		int menu = input.nextInt();

		switch (menu) {
		case 1:
			System.exit(0);
			break;
		case 2:
			System.out.println("You chose too login");
			break;
		}

		int count1 = 1;
		int count2 = 0;

		// Returns to the top when bottom is reached
		while (true) {

			if (true) {
				System.out.println("Enter your username: ");
				String usernameAttempt = input.nextLine();
				input.nextLine();
				System.out.println("Enter your password: ");
				String passwordAttempt = input.nextLine();

				while (usernameAttempt != username || passwordAttempt != password) {
					count2++;
					int triesLeft = 3 - count2;
					System.out.println("Wrong username or password. " + triesLeft + " tries left.");
					System.out.println("Enter your username: ");
					usernameAttempt = input.nextLine();
					System.out.print("Enter your password: ");
					passwordAttempt = input.nextLine();
					if (count2 == 3) {
						break;
					}
				}
			}

			// Ends loop at three failed login attempts
			if (count2 >= 3) {
				System.out.println("Too many login attempts. Try again later.");
				break;
			} else if (count2 <= 3) {
				System.out.println("You are now logged in!");
			}

			count1++;

		}
	}

	// Creates method for generating username (initials)
	public static String createUsername(String name) {
		String[] parts = name.split(" ");
		String firstName = parts[0];
		String lastName = parts[1];
		char a = firstName.charAt(0);
		char b = lastName.charAt(0);
		char c = lastName.charAt(1);
		char d = lastName.charAt(2);
		String username = Character.toString(a) + Character.toString(b) + Character.toString(c) + Character.toString(d);
		return username;
	}

	// Crates method for generating password (first three last name chars + last
	// four cpr digits)
	public static String createPassword(String name, String cpr) {
		String[] parts = name.split(" ");
		String firstName = parts[0];
		String lastName = parts[1];
		char a = lastName.charAt(0);
		char b = lastName.charAt(1);
		char c = lastName.charAt(2);
		char d = cpr.charAt(7);
		char e = cpr.charAt(8);
		char f = cpr.charAt(9);
		char g = cpr.charAt(10);

		String password = Character.toString(a) + Character.toString(b) + Character.toString(c) + Character.toString(d)
				+ Character.toString(e) + Character.toString(f) + Character.toString(g);
		return password;
	}

}