package example;


import java.util.Scanner;
import java.text.DecimalFormat;

public class Bank {

    static long accountID;
    static String accountHolder;
    static double accountBalance;
    static String PIN;
    static final double withdrawalTransactionCharge = 0.50; // $0.50 charge for
                                                            // each transaction
    private static DecimalFormat df = new DecimalFormat("#.##");

    public enum Choice{
        DEPOSIT, WITHDRAW, DISPLAY, EXIT
    }
    
    public Bank() {
    	init();
    }
    
    public static void init() {
        accountHolder = "J. Doe";
        accountBalance = 500.00;
        accountID = 555444333;
        PIN = "1234";
    }


    public static void withdraw(double amount) {
        if ((amount + withdrawalTransactionCharge) < accountBalance) {
            accountBalance = accountBalance - amount
                - withdrawalTransactionCharge;
            System.out.println("withdrawing $" + df.format(amount));
        }
        else {
            System.out.println(
                "low account balance, cannot complete withdrawal transaction");
        }
        displayAccountBalance();

    }


    public static void deposit(double amount) {

        accountBalance = accountBalance + amount;
        System.out.println("depositing $" + df.format(amount));
        displayAccountBalance();

    }


    public static void displayMenu() {

        StringBuilder buffer = new StringBuilder();

        buffer.append("*****Welcome to ABC Bank*****");
        buffer.append("\n");
        buffer.append("\n");
        buffer.append("1: Withdraw $20.00");
        buffer.append("\n");
        buffer.append("2: Deposit  $20.00");
        buffer.append("\n");
        buffer.append("3: Display Balance");
        buffer.append("\n");
        buffer.append("\n");
        buffer.append(
            "Please enter your choice of 1, 2, or 3, and press the Enter key");
        buffer.append("\n");
        System.out.println(buffer.toString());
    }


    public static void displayAccountBalance() {

        StringBuilder buffer = new StringBuilder();

        buffer.append("-----Account Details----- ");
        buffer.append("\n");
        buffer.append("Account ID: ");
        buffer.append(accountID);
        buffer.append("\n");
        buffer.append("Holder: ");
        buffer.append(accountHolder);
        buffer.append("\n");
        buffer.append("Balance: $");
        buffer.append(df.format(accountBalance));
        buffer.append("\n");
        buffer.append("-------------------------");
        buffer.append("\n");
        buffer.append("-------------------------");
        buffer.append("\n");
        buffer.append("\n");
        System.out.println( buffer.toString());

    }// end of displayAccountDetails Method


    public static void main(String[] args) {
        init(); // Initializes this account
        displayMenu();

        String response = new Scanner(System.in).nextLine(); // Read user input

        if (response.equals("1")) {
            withdraw(20.00);
        }
        else if (response.equals("2")) {
            deposit(20.00);
        }
        else if (response.equals("3")) {
            displayAccountBalance();
        }
        else {
            System.out.println("You entered an invalid choice.");
        }
        
       

        System.out.println("Thank you for banking with us, goodbye!");
    }

}