mport javax.swing.*;
import java.io.*;
import java.util.Scanner;

public class Account
{

    public static int attempts;

    public static String adminNum;

    /** createAccount() method allows the user to create a new account
     * it stores the admin number, username and password in a file
     *
     *
     */
    public static void createAccount() throws IOException
    {
        FileWriter aFileWriter = new FileWriter("Admins.txt",true);
        PrintWriter out = new PrintWriter(aFileWriter);
        String adminUserName,adminPassword;
        adminNum = JOptionPane.showInputDialog(null,"Enter administrator number");
        adminUserName = JOptionPane.showInputDialog(null,"Enter username");
        String msg1 = "Welcome " + adminUserName + " your administrator account has been created";
        adminPassword = JOptionPane.showInputDialog(null,"Enter password");
        String errorM = "Invalid entry";
        if((adminUserName !=  null) || (adminPassword != null))
        {
            JOptionPane.showMessageDialog(null, msg1);
            out.print(adminNum + "," + adminUserName + "," + adminPassword + "\n");
            out.close();
            aFileWriter.close();
        }
        else
            JOptionPane.showMessageDialog(null,errorM);
    }

    /** adminLogin() method checks the username and password the user inputs and compares it to
     * those stored in the file. If it is found the user can access their account , else an
     * error message is displayed
     *
     *
     */
    public static void adminLogin() throws IOException
    {
        File aFile = new File("Admins.txt");
        String adminUserName,adminPassword;
        Scanner in;
        String fileElements[];
        boolean found;

        if (aFile.exists())
        {
            adminUserName = JOptionPane.showInputDialog(null,"Enter your username");
            adminPassword = JOptionPane.showInputDialog(null,"Enter your password");
            in = new Scanner(aFile);
            found = false;

            while(in.hasNext() && !found)
            {
                fileElements = (in.nextLine()).split(",");
                if (adminUserName.equals(fileElements[1]) && adminPassword.equals(fileElements[2]))
                    found = true;
                else
                    attempts++;
            }
            in.close();
            if(found)
                JOptionPane.showMessageDialog(null,"Welcome " + adminUserName);
            else
                if (attempts >= 3)
                    JOptionPane.showMessageDialog(null, "You have exceeded the limit of login attempts");
                else
                    {
                    JOptionPane.showMessageDialog(null, "Incorrect username and/or incorrect password");
                    adminLogin();
                    }
        }

    }
}