/*
	Course Number   : ISYS 116
	Student Name    : Jason Gradziel
	Student Number  : 826-135-535
	Professors Name : Gene Rychlewski
	Class Name      : Thursday
	Lab Title       : PAYROL2
	*/

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <dos.h>

float hours,
      rphr,
      grosspay,
      taxrate,
      netpay,
      taxdeduction;
int   dependents,
      counter;

int setup(char IDcode[6],char fname[16],char lname[21],
					int cntr,int employees);
int process();
int wrapup(char IDcode[6],char fname[16],char lname[21]);
int data_item();
int tax_rate();

void main(void)
{
	char  IDcode[6],
	      fname[16],
	      lname[21],
	      *num;
	int   employees,
	      flag=1,
	      cntr=0;

	while(flag==1)
	{
		clrscr();
		gotoxy(20,10);
		printf("Enter in a number :");
		gotoxy(25,11);
		printf("1. Run Pay Roll Program");
		gotoxy(25,12);
		printf("2. Exit");
		gotoxy(40,10);
		*num = getch();
		*num = atoi(num);

		if (*num == 1)
		{
			gotoxy(10,15);
			printf("How many times do you want to run the program ? : ");
			scanf("%d",&employees);
			fflush(stdin);
			for(cntr=1; cntr<=employees; cntr++)
			{
				setup(IDcode,fname,lname,cntr,employees);
				process();
				wrapup(IDcode,fname,lname);
			}
		}
		else
			flag = 0;
	}
}

int setup(char IDcode[6],char fname[16],
			 char lname[21],int cntr,int employees)
{
	clrscr();
	counter=0;
	gotoxy(35,2);
	printf("PAY ROLL");
	gotoxy(70,2);
	printf("%d of %d",cntr,employees);
	gotoxy(4,7);
	printf("Please enter in the following");
	data_item();
	gotoxy(16,8);
	printf("Employee ID code (A-001) : ");
	gets(IDcode);
	data_item();
	gotoxy(21,9);
	printf("First name (max 15) : ");
	gets(fname);
	data_item();
	gotoxy(22,10);
	printf("Last name (max 20) : ");
	gets(lname);
	data_item();
	gotoxy(16,11);
	printf("The number of dependents : ");
	scanf("%d",&dependents);
	fflush(stdin);
	data_item();
	gotoxy(9,12);
	printf("Number of hours worked (week) ? : ");
	scanf("%f",&hours);
	data_item();
	gotoxy(25,13);
	printf("Rate per hour ? : ");
	scanf("%f",&rphr);
	data_item();

	gotoxy(25,14);
	printf("Scanning");
	for (int a=0; a<10; a++)
		{
		delay(200);
		printf(".");
		}

	gotoxy(25,14);
	printf("                      ");

	return 0;
}

int process()
{
	tax_rate();
	grosspay = hours * rphr;
	taxdeduction = taxrate * grosspay;
	netpay = grosspay - taxdeduction;
	return 0;
}

int wrapup(char IDcode[6], char fname[16], char lname[21])
{
	gotoxy(20,15);
	printf("%s %s  %s",fname,lname,IDcode);
	gotoxy(20,16);
	printf("Gross pay      $ %7.2f",grosspay);
	gotoxy(20,17);
	printf("Tax deduction  $ %7.2f",taxdeduction);
	gotoxy(20,18);
	printf("Net pay        $ %7.2f",netpay);

	gotoxy(20,20);
	printf("PROGRAM COMPLETE");

	getch();
	fflush(stdin);
	return 0;
}

int data_item()
{
	gotoxy(1,25);
	printf("Data item # %d",counter);
	counter++;
	return 0;
}

tax_rate()
{
	if (dependents<3)
		taxrate=35.0/100.0;
	else
		taxrate=25.0/100.0;

	return 0;
}