package Project;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.Scanner;

public class Customer {

	private final Scanner sc = new Scanner(System.in);

	private String customerFirstName;
	private String customerLastName;
	private String customerAddress;
	private Date customerDateOfBirth;
	private int customerPhoneNumber;
	private int customerCPR;
	private int customerPostCode;
	private String customerUsername = "";
	private String customerPassword = "";

	public Customer createAccount()
	{
		System.out.println("-- Account creator --");
		Customer c = new Customer();

		//Prompts the user to enter their first name and checks if it contains numbers.
			System.out.println("Please enter your first name:");
			String temp = sc.next();

			while(!isNameValid(temp))
			{
				System.out.println("Your name should not contain numbers. Please try again.");
				temp = sc.next();
			}
			c.customerFirstName = temp;

		//Prompts the user to enter their last name and checks if it contains numbers.
			System.out.println("Please enter your last name:");
			temp = sc.next();

			while(!isNameValid(temp))
			{
				System.out.println("Your name should not contain numbers. Please try again");
				temp = sc.next();
			}
			c.customerLastName = temp;

		//Prompts the user to enter their address with no checks.
			System.out.println("Please enter your address:");
			c.customerAddress = sc.next();

		//Prompts the user to enter their postal code and check if it's within it's boundaries.
			System.out.println("Please enter your 4-digit postal code. The code has to be less or equal to 2500.");
			temp = sc.next();

			while(!isPostCodeValid(temp))
			{
				System.out.println("Invalid postal code. Please try again.");
				temp = sc.next();
			}
			c.customerPostCode = Integer.parseInt(temp);

		//Prompts the user to enter their date of birth and checks if it's a valid date.
			System.out.println("Please enter your date of birth in the format: dd-mm-yyyy. Please be PRECISE:");
			SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy", Locale.ENGLISH);
			Date date = null;
			while (date == null)
			{
				try
				{
					date = format.parse(sc.next());
					c.customerDateOfBirth = date;
				}
				catch (ParseException e)
				{
					System.out.println("You entered an invalid day of birth. Please try again with the format dd-mm-yyyy");

				}
			}

		//Prompts the user to enter their phone number and check if it's valid.
			System.out.println("Please enter your 8-digit phone number. Only numbers are accepted");
			temp = sc.next();

			while(!isPhoneNumberValid(temp))
			{
				System.out.println("Your number was either too long, too short or had characters in it. Please try again.");
				temp = sc.next();
			}
			c.customerPhoneNumber = Integer.parseInt(temp);

		//Prompts the user to enter their CPR number and check if it's valid.
			System.out.println("Please enter your 10-digit CPR number in the format ddmmyy-XXXX");
			temp = sc.next();

			while(!isCPRValid(temp))
			{
				System.out.println("You entered an invalid CPR. Please try again in the proper format");
				temp = sc.next();

			}
			String[] parts = temp.split("-");
			String ddmmyy = parts[0];
			String security = parts[1];
			c.customerCPR = Integer.parseInt((ddmmyy + security));

		//Creates a username and password for the customer.
			String tempUsername = createUsername(c);
			String tempPassword = createPassword(c);

			if((tempUsername == null || tempPassword == null))
			{
				System.out.println("Something went wrong when creating your password and username. Most likely you see this error because your name is too special to create a login.");
				return null;
			}

			c.customerUsername = tempUsername;
			c.customerPassword = tempPassword;

		//Prints a recipe for the customer with his/her account details
			printRecipe(c);

			System.out.println("");

			return c;


	}

	// create methods
	private String createPassword(Customer c)
	{
		if(!(c.customerLastName.length() < 3))
		{
			String last = c.customerLastName.substring(0 , 3);
			String pass = Integer.toString(c.customerCPR);

			pass = pass.substring(pass.length() - 4, pass.length());



			return last + pass;
		}
		return null;
	}

	private String createUsername(Customer c)
	{
		if(!(c.customerFirstName.length() == 0 || c.customerLastName.length() < 3))
		{
			String first = c.customerFirstName.substring(0, 1);
			String last = c.customerLastName.substring(0, 3);
			return first + last;
		}

		return null;
	}


	// isValid methods
		private boolean isPostCodeValid(String s)
		{
			String n = ".*[0-9].*";
			if(s.matches(n) && s.length() == 4)
			{
				int temp = Integer.parseInt(s);

				if (temp <= 2500)
				{
					return true;
				}

				return false;
			}

			return false;
		}

		private boolean isCPRValid(String s)
		{
			if (!s.contains("-"))
			{
				return false;
			}

			String[] parts = s.split("-");
			String ddmmyy = parts[0];
			String security = parts[1];

			if (!(ddmmyy.length() != 6 || security.length() != 4))
			{
				String n = ".*[0-9].*";
			    if(ddmmyy.matches(n) && security.matches(n))
			    {
			    	return true;
			    }
			}
			return false;
		}

		private boolean isPhoneNumberValid(String s)
		{
			if (s.length() != 8)
			{
				return false;
			}
			String n = ".*[0-9].*";
		    return (s.matches(n));
		}

		private boolean isNameValid(String s)
		{
			if(s.isEmpty())
			{
				return false;
			}
		    String n = ".*[0-9].*";
		    return !(s.matches(n));
		}


		private void printRecipe(Customer c)
		{
			System.out.println("");
			System.out.println("Your account has succesfully been created with the following details: ");
			System.out.println("");
			System.out.println("------ Account details ------");
			System.out.println("Customer name: " + customerFirstName + " " + c.customerLastName);
			System.out.println("Customer DOB (Date of birth): " + (c.customerDateOfBirth.getDate()) + "-" + (c.customerDateOfBirth.getMonth() + 1) + "-" + c.customerDateOfBirth.getYear());
			System.out.println("Customer address: " + c.customerAddress);
			System.out.println("Customer post code: " + c.customerPostCode);
			System.out.println("Customer phone number: " + c.customerPhoneNumber);
			System.out.println("Customer CPR: " + c.customerCPR);

			System.out.println("");
			System.out.println("Please use the below information to login into our webshop: ");
			System.out.println("");
			System.out.println("##### Login Details #####");
			System.out.println("#-----------------------#");
			System.out.println("# Username: " + c.customerUsername + "        #");
			System.out.println("# Password: " + c.customerPassword + "     #");
			System.out.println("#########################");
			System.out.println("");
		}


	public String getCustomerFirstName() {
		return customerFirstName;
	}
	public void setCustomerFirstName(String customerFirstName) {
		this.customerFirstName = customerFirstName;
	}
	public String getCustomerLastName() {
		return customerLastName;
	}
	public void setCustomerLastName(String customerLastName) {
		this.customerLastName = customerLastName;
	}
	public String getCustomerAddress() {
		return customerAddress;
	}
	public void setCustomerAddress(String customerAddress) {
		this.customerAddress = customerAddress;
	}
	public Date getCustomerDateOfBirth() {
		return customerDateOfBirth;
	}
	public void setCustomerDateOfBirth(Date customerDateOfBirth) {
		this.customerDateOfBirth = customerDateOfBirth;
	}
	public int getCustomerPhoneNumber() {
		return customerPhoneNumber;
	}
	public void setCustomerPhoneNumber(int customerPhoneNumber) {
		this.customerPhoneNumber = customerPhoneNumber;
	}
	public int getCustomerCPR() {
		return customerCPR;
	}
	public void setCustomerCPR(int customerCPR) {
		this.customerCPR = customerCPR;
	}
	public int getCustomerPostCode() {
		return customerPostCode;
	}
	public void setCustomerPostCode(int customerPostCode) {
		this.customerPostCode = customerPostCode;
	}
	public String getCustomerUsername() {
		return customerUsername;
	}
	public void setCustomerUsername(String customerUsername) {
		this.customerUsername = customerUsername;
	}
	public String getCustomerPassword() {
		return customerPassword;
	}
	public void setCustomerPassword(String customerPassword) {
		this.customerPassword = customerPassword;
	}


}