// BalanceInquiry.cpp
// Member-function definitions for class BalanceInquiry.
#include "BalanceInquiry.h" // BalanceInquiry class definition
#include "Screen.h" // Screen class definition
#include "BankDatabase.h" // BankDatabase class definition

// BalanceInquiry constructor initializes base-class data members
BalanceInquiry:: BalanceInquiry( int userAccountNumber, Screen &atmScreen, 
   BankDatabase &atmBankDatabase )
   : Transaction( userAccountNumber, atmScreen, atmBankDatabase )
{
   // empty body
} // end BalanceInquiry constructor

// performs transaction; overrides Transaction's pure virtual function
void BalanceInquiry::execute()
{
   // get references to bank database and screen
   BankDatabase &bankDatabase = getBankDatabase();
   Screen &screen = getScreen();

   // get the available balance for the current user's Account
   double availableBalance = 
      bankDatabase.getAvailableBalance( getAccountNumber() );

   // get the total balance for the current user's Account
   double totalBalance = 
      bankDatabase.getTotalBalance( getAccountNumber() );
   
   // display the balance information on the screen
   screen.displayMessageLine( "\nBalance Information:" );
   screen.displayMessage( " - Available balance: " ); 
   screen.displayDollarAmount( availableBalance );
   screen.displayMessage( "\n - Total balance:     " );
   screen.displayDollarAmount( totalBalance );
   screen.displayMessageLine( "" );
} // end function execute


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