// ATM.h
// ATM class definition. Represents an automated teller machine.
#ifndef ATM_H
#define ATM_H

#include "Screen.h" // Screen class definition
#include "Keypad.h" // Keypad class definition
#include "CashDispenser.h" // CashDispenser class definition
#include "DepositSlot.h" // DepositSlot class definition
#include "BankDatabase.h" // BankDatabase class definition
class Transaction; // forward declaration of class Transaction

class ATM
{
public:
   ATM(); // constructor initializes data members
   void run(); // start the ATM
private:
   bool userAuthenticated; // whether user is authenticated
   int currentAccountNumber; // current user's account number
   Screen screen; // ATM's screen
   Keypad keypad; // ATM's keypad
   CashDispenser cashDispenser; // ATM's cash dispenser
   DepositSlot depositSlot; // ATM's deposit slot
   BankDatabase bankDatabase; // account information database

   // private utility functions
   void authenticateUser(); // attempts to authenticate user
   void performTransactions(); // performs transactions
   int displayMainMenu() const; // displays main menu

   // return object of specified Transaction derived class
   Transaction *createTransaction( int ); 
}; // end class ATM

#endif // ATM_H


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