/* AccountData.java */

import sortedlist.*;

/** Implements a customer's account profile for the virtual teller machine.
 */
public class AccountData implements Keyable {

  /**  Ceates a new account for customer `newName' and the acount
   *   number 'num' with a $0 starting balance.
   */
  public AccountData( String newName, int num ) {
    name = newName;
    number = num;
    balance = 0;
  }

  /** Returns true if 'this' account's number is less than the
   *          argument's account number.
   */
  public boolean lessThan(Keyable x) {
    if (number < ((AccountData) x).number) {
      return true;
    }
    else {
      return false;
    }
  }  


  /** Returns the name of this account's owner.
   */
  public String getOwner() {
    return name;
  }

  /** Returns a String of the account's number.
   */
  public String toString() {
    return number + "";
  }

    
  /** Returns the balance on this account.
   */
  public int getBalance() {
    return balance;
  }

  /** Reduces the balance by the withdrawl amount, amt.
   */
  public void withdraw( int amt ) {
    if( amt <= balance ) {
      balance -= amt;
    }
    else {
      System.out.println( "Error:  Insufficient funds: " + amt );
    }
  }

  /** Deposits `amt' into this account.
   */
  public void deposit( int amt ) {
    if( amt >= 0 ) {
      balance += amt;
    }
    else {
      System.out.println( "Error:  Tried to deposit less than 0: " + amt );
    }
  }

  /** Returns this integer account number.
   */
  public int getNumber() {
    return number;
  }

  /** Returns this account's integer account number
   *  as the key to used in sorting and comparisons.
   */
  public int getKey() {
    return number;
  }

  private String name;        // customer name
  private int    balance;     // starting balance
  private int    number;      // account number
}