import java.text.*;

/**
 * A savings account that does not allow withdrawals
 * (except upon graduation) and does not earn interest.
 *
 * @author  Prof. David Bernstein, James Madison University
 * @version 1.0
 */
public class FixedTermSavingsAccount
{
    private         double           balance;
    private final   int              accountNumber;
    private         NumberFormat     accountFormatter;

    private         String           userName;

    private static  int              nextAccountNumber;


    /**
     * Explicit Value Constructor
     *
     * @param userName   The JMU username of the account holder
     */
    public FixedTermSavingsAccount(String user)
    {
	userName    = user;

	accountNumber    = nextAccountNumber;
	nextAccountNumber++;


	accountFormatter = NumberFormat.getInstance();
	accountFormatter.setMinimumIntegerDigits(10);
	accountFormatter.setMaximumIntegerDigits(10);
	accountFormatter.setGroupingUsed(false);

	setBalance(0.0);
    }


    /**
     * Compare the account number on this account to the
     * account number on a given account
     *
     * @param other The given account
     * @return      -1/1 if this account comes before/after the given account
     */
    public int compareTo(FixedTermSavingsAccount other)
    {
	int       relation;

	relation = 0;
	if (this.accountNumber < other.accountNumber) {

	    relation = -1;

	} else if (this.accountNumber > other.accountNumber) {

	    relation = 1;
	}

	return relation;
    }


    /**
     * Deposit money into this account
     *
     * @param amount  The amount of the deposit (should be positive)
     * @return        A message describing the deposit       
     */
    public String deposit(double amount)
    {
	double         temp;
	NumberFormat    moneyFormatter;
	String         message;

	temp = getBalance();
	message = "";
	if (amount <= 0.0) {

	    message = "Deposits should be positive.";

	} else {

	    moneyFormatter = NumberFormat.getCurrencyInstance();
	    message = "Deposited " + moneyFormatter.format(amount);
	    temp += amount;
	}

	setBalance(temp);

	return message;
    }


    /**
     * Get the ID associated with this account
     *
     * @return  The ID
     */
    public String getAccountID()
    {
	String        s;

	s = "FT-"+getAccountNumber();

	return s;
    }


    /**
     * Get the number associated with this account
     *
     * @return  The account number
     */
    public String getAccountNumber()
    {
	String        s;

	s = accountFormatter.format(accountNumber);

	return s;
    }


    /**
     * Get the current balance
     *
     * @return   The balance
     */
    public double getBalance()
    {
	return balance;
    }



    /**
     * Get a textual description of the current balance
     *
     * @return   The description of the balance
     */
    public String getBalanceMessage()
    {
	NumberFormat    moneyFormatter;
	String          s;

	moneyFormatter = NumberFormat.getCurrencyInstance();
	s = "Balance: " + moneyFormatter.format(getBalance());

	return s;
    }


    /**
     * Get the JMU username of the account holder
     *
     * @return   The username
     */
    public String getUserName()
    {
	return userName + "@jmu.edu";
    }



    /**
     * Set the current balance
     * Note: This method should be used with caution
     *       (We'll learn how to fix this later)
     *
     * @param balance   The new balance
     */
    public void setBalance(double balance)
    {
	this.balance = balance;
    }


}