/* Name: checking.cpp 
 * Purpose: Implementation File for Bank Checking Account Class            
 * Author: Dr. Michael A. Redmond
 * Date Written: 05/04/98
 * Date Revised:
 * NOTES: 
*/






// in checking.cpp
#include "account.h"
#include <assert.h>
#include "checking.h"
#include <string>
using namespace std;

Checking::Checking() : Account(), numChecksWritten(0), lowestBalanceThisMonth(0) {
  }


// bal defaults to 0.0 
// currNumChecks defaults to 0
Checking::Checking(const string& numb, double bal, int currNumChecks) :
                       Account(numb,bal), numChecksWritten(currNumChecks), 
                       lowestBalanceThisMonth(bal) {
   }


double Checking::ProcessCheck(double amount) {
   assert (amount > 0);
   Withdraw(amount);
   if (GetBal() < lowestBalanceThisMonth) {
      lowestBalanceThisMonth = GetBal();
     }
   // charging waits for month end
   numChecksWritten++;
   return GetBal();
 }


double Checking::ProcessMonthEnd() {
   if (lowestBalanceThisMonth < minBal) {
      double charge = numChecksWritten * perCheckCharge;
      Withdraw(charge);
     }
   return GetBal();
  }