#include <iostream>
#include <iomanip.h>
#include <fstream.h>
#include <ctype.h>

float commission(float, float, float,float);
void display(char [], float, float);
void main()
{
	char name[20], status;
	float sales, calCom;
	
	cout << "Enter name ";
	cin.getline(name, 20);
	cout << "Enter status ";
	cin.ignore(100,'\n');
	cin>> status;
	cout << "Enter sales ";
	cin>>sales;
	switch (toupper(status))
	{
	case 'J':
		calCom = commission(10,7.5,5.0,sales);
		display(name,sales,calCom);
	break;
	case 'S':
		calCom = commission(12, 9.5, 7.0,sales);
		display(name,sales,calCom);
	}
}
float commission(float a, float b, float c,float sales)
{
	float com;
	if (sales > 10000)
		com = sales * a / 100;
	else if (sales > 5000)
		com = sales * b / 100;
		else if (sales > 0)
			com = sales * c / 100;
			else
			com = -1;
	return com;
}
void display(char name[], float sales, float commission)
{
	ofstream outfile;
	outfile.open("lab09.dat");

	cout<<setprecision(2);
	cout<<setiosflags(ios::fixed|ios::showpoint);
	cout << "\n\nName "<< name<< endl;	
	cout << "Sales $" << sales<<endl;
	if (sales < 0) 
		cout << "Data Error" << endl;
	else
		cout << "Commission $"<<commission<<endl;
//output to file
	outfile<<setprecision(2);
	outfile<<setiosflags(ios::fixed|ios::showpoint);
	outfile << "\n\nName "<< name<< endl;	
	outfile << "Sales $" << sales<<endl;
	if (sales < 0) 
		outfile << "Data Error" << endl;
	else
		outfile << "Commission $"<<commission<<endl;
}