#include <iostream> 
#include<sstream>
#include <string>
 
#include <iomanip> 
 
using namespace std;
 
const float HOURLYPAYRATE=18.75;
 const float COMMISSIONRATE=1000.00;
 
enum PayType {salary, hourly, commission};
 
union PayRate{
	long salary;
	float hours;
	int commission;
};
 
struct Employee {
 
	char id[4];
    char name[80]; 
 
   PayType type;
   PayRate rate; 
 
float grossPay;
 
};
 
 
int getEmployeeData(Employee* e, int size);
float calculateGrossPay(Employee [], int);
void displayEmployeeInfo(Employee [], int size);
int maxPayIndex(Employee[], int size);
 
 
 
int main()
{
 
 
 
 int MAX=0;
 
 
 
 cout<<"Enter maximum number of employees to enter?"<<endl;
 cin>>MAX;
 
 Employee* emp;
 
  emp=new Employee[MAX];
    if(emp==NULL)
  {
	  cerr<<"couldn't allocate memory"<<endl;
	  return 1;
  }
 
MAX=getEmployeeData(emp,MAX);
emp->grossPay=calculateGrossPay(emp,MAX);
displayEmployeeInfo(emp,MAX);
delete [] emp;
return 0;
}
 
 
int getEmployeeData(Employee* e, int size)
{
 
  bool test=true;
  int count=0;
 
 
 
  for(int i=0; i<size && test ; i++)
	{
    count++;
 
	stringbuf buffer;
	cout << "Enter the employee's id (Enter to quit):  ";
	cin.get(buffer);
	cout << buffer.str() << endl;
   if ( buffer.str().empty() )
   {
    return count;
   }
	else 
	{
    cout << "Enter name: ";
	cin.ignore();
	cin.getline((e+i)->name, 80);
	cout << "Enter payroll status:  ";
	char input;
	cin >> input;
	cin.ignore();
    if (input=='h'|| input=='H')
		{
		(e+i)->type=hourly;
		cout<<"Enter number of hours worked this month:  ";
	    cin>>(e+i)->rate.hours;
		}
   else if ( input== 's' || input =='S')
		 {
		(e+i)->type=salary;
		cout<<"Enter monthly salary:  ";
		cin>>(e+i)->rate.salary;
		 }
 
		  else if( input=='c'|| input=='C')
		  {
			  (e+i)->type=commission;
			  cout<<"Enter total sales this month: ";
			  cin>>(e+i)->rate.commission;
		  }
	}
  }
 
  return count;
}
 
 
float calculateGrossPay(Employee e[], int size)
{
	for(int i=0; i<size; i++)
	{
 
		if(e[i].type==salary)
		{  
			e[i].grossPay= (float(e[i].rate.salary));
 
		}
        else if(e[i].type==hourly)
		{
			e[i].grossPay=(HOURLYPAYRATE * e[i].rate.hours);	
		}
		else if(e[i].type==commission)
		{                                                 
			e[i].grossPay=float(COMMISSIONRATE + (0.06 * e[i].rate.commission));
		}
	}
 
	return e->grossPay;
 
}
 
 
void displayEmployeeInfo(Employee e[], int size)
{
cout<<"  ID   Name   PayrollStatus  GrossPay\n";
cout<<endl;
for(int i=0; i<size; i++)
{
cout <<setw(4)<<e[i].id<<setw(10)<<"  "<<e[i].name;
  if(e[i].type==hourly)
  {
    cout<<setw(10)<<"Hourly";
    cout << fixed << showpoint << setprecision(2);
    cout<<setw(10)<< e[i].grossPay<< endl;
   }
else if(e[i].type==salary)
   {
	   cout<<setw(10)<<"Salaried";
	   cout<<fixed<<showpoint<<setprecision(2);
	   cout<<setw(10)<<e[i].grossPay<<endl;
 
  }
else if(e[i].type==commission)
  {      
	   cout<<setw(10)<<"Commisioned";
	   cout<<fixed<<showpoint<<setprecision(2);
	   cout<<setw(10)<<e[i].grossPay<<endl;
   }
 
 
 
  }
  int max =maxPayIndex(e,size);
	  cout<<"the employee with maxium gross pay is"<<e[max].name<<endl;
}
 
int maxPayIndex(Employee e[], int size)
{
	float largest=e[0].grossPay;
	int count=0;
	for(int i=1; i<size; i++)
	{   
		count++;
		if(e[i].grossPay>largest)
			largest=e[i].grossPay;
	}
 
	return count+1;
}