/* Four essential ingredients for having a polymorphic method call:
 * 1) Inheritance
 * 2) Virtual method (base class)
 * 3) Virtual method overridden in derived class
 * 4) Pointer or reference of the base class type, but pointing to/referencing the derived class
*/

#include <iostream>
#include <string>

#include "Account.h"
#include "SavingsAccount.h"
#include "CheckingAccount.h"

using std::cout;
using std::endl;
using std::string;

const double INTEREST_RATE = 1.2; // interest rate for savings account

// display the header and then the account details
void displayAccount( Account* acct, string header ){
    cout << header << endl;
    acct->display();
    cout << endl;
}

int main(){
    SavingsAccount firstHome( 1234.56, INTEREST_RATE);
    CheckingAccount gasMoney( 78.90);

    displayAccount( &firstHome, "After initialization:");
    displayAccount( &gasMoney, "After initialization:");

    firstHome.deposit( 987.65);
    gasMoney.deposit( 12.34);

    firstHome.withdraw( 2000.00);
    int checkNumber = 234;
    gasMoney.processCheck( 55.55, checkNumber);

    Account& acctRef1 = firstHome;
    Account& acctRef2 = gasMoney;
    
    acctRef1.deposit( 3333.33 );
    acctRef2.deposit( 66.66 );
    
    acctRef1.withdraw( 3555.00 );
    acctRef2.withdraw( 66.66 );

    acctRef1.display();
    acctRef2.display();

    return 0;
}