//********************************************************
//
// Assignment 6 - Structures
//
// Name: Raissa Almeida Beckenkamp
//
// Class: C Programming, Fall 2025
//
// Date: October 19, 2025
//
// Description: Program which determines overtime and 
// gross pay for a set of employees with outputs sent 
// to standard output (the screen).
//
// Call by reference design
//
//********************************************************
 
// Define and Includes
 
#include <stdio.h>
 
// Define Constants
#define SIZE 5
#define STD_HOURS 40.0
#define OT_RATE 1.5
 
// Define a global structure to pass employee data between functions
// Note that the structure type is global, but you don't want a variable
// of that type to be global. Best to declare a variable of that type
// in a function like main or another function and pass as needed.
 
struct employee
{
    long clockNumber;
    float wageRate;
    float hours;
    float overtimeHrs;
    float grossPay;
};
 
// define prototypes here for each function except main
 
void getHours (struct employee employeeData[], int theSize );
void printHeader (void);
void printEmp (struct employee emp [ ], int theSize);
 
// TODO: add your function prototypes here
void calcOT (struct employee employeeData [], int theSize);
void calcGross (struct employee employeeData [], int theSize);
 
int main ()
{
    // Set up a local variable and initialize the clock and wages of my employees
    struct employee employeeData [SIZE] = {
        { 98401, 10.60 },
        { 526488, 9.75 },
        { 765349, 10.50 },
        { 34645, 12.25 },
        { 127615, 8.35 }
    };
 
    // Call function needed to read hours
    getHours (employeeData, SIZE);
 
    // TODO: Call functions calculate ot hours and gross pay
 
	//Function call to calculate the overtime hours
	calcOT (employeeData, SIZE);
 
	//Function call to calculate the gross pay
	calcGross (employeeData, SIZE);
 
    // TODO: Call function to print the table column headers
 
 
    // Print a table header
    printHeader();
 
    // Function call to output results to the screen in table format
    printEmp (employeeData, SIZE);
 
    return(0); // success
 
} // main
 
//**************************************************************
// Function: getHours 
// 
// Purpose: Obtains input from user, the number of hours worked 
// per employee and stores the result in an array of structures
// that is passed back to the calling function by reference. 
// 
// Parameters:
// 
//     employeeData - an array of structures containing Employees
//     theSize - number of employees to process
//
// Returns: Nothing (void)
//  
//**************************************************************
 
void getHours (struct employee employeeData[], int theSize ) 
{
 
    int i; // loop and array index
 
    // read hours in for each employee
    for (i = 0; i < theSize ; ++i)
    {
        printf("\nEnter hours worked by emp # %06li: ",                 employeeData[i].clockNumber);
        scanf ("%f", &employeeData
[i
].
hours);     } // for
 
} // getHours
 
//**************************************************************
// Function: printHeader
// 
// Purpose: Prints the initial table header information.
// 
// Parameters: none
// 
// Returns: void
//  
//**************************************************************
 
void printHeader (void) 
{ 
 
    printf ("\n\n*** Pay Calculator ***\n");  
    // print the table header
    printf("\nClock# Wage  Hours  OT      Gross\n");     printf("------------------------------------------------\n");  
} // printHeader
 
// ********************************************************************
// Function: printEmp
//
// Purpose: Outputs to screen in a table format the following
// information about an employee: Clock, Wage,
// Hours, Overtime Hours, and Gross Pay.
//
// Parameters:
//
//     employeeData - an array of structures containing Employees
//     theSize - number of employees to process
//
// Returns: Nothing (void)
//
// *********************************************************************
 
void printEmp ( struct employee employeeData[], int theSize )
{
    int i; // loop and array index
 
    // print information about each employee
    for (i = 0; i < theSize ; ++i)
    {
        printf("\n %06li %5.2f %4.1f %4.1f %8.2f",         employeeData[i].clockNumber, employeeData[i].wageRate, employeeData[i].hours,
        employeeData[i].overtimeHrs, employeeData[i].grossPay);
    } /* for */
 
} // printEmp
 
// TODO: add your functions here
 
//**************************************************************
// Function: calcOT (Call by Reference)
// Purpose : Computes overtime hours (> 40.0) for each employee.
// Parameters  : employeeData (array of structs), theSize (count)
// Returns : Nothing (void)
//**************************************************************
// function definition for calcOT
void calcOT (struct employee employeeData[],
int theSize)
{
	//declare local variables
	int i;
	float overtimeHrs;
 
	//add in code
	for (i = 0; i < theSize; ++i)
	{
		overtimeHrs = 0.0;
 
		if (employeeData[i].hours > STD_HOURS)
		{
			overtimeHrs = employeeData[i].hours - STD_HOURS;
		}
			employeeData[i].overtimeHrs = overtimeHrs;
	}
} //calcOT
 
//**************************************************************
// Function: calcGross (Call by Reference)
/// Purpose : Computes gross pay for each employee using 
//  wage rate, hours worked, and overtime hours.
// Parameters  : employeeData (array of structs), theSize (count)
// Returns : Nothing (void)
//**************************************************************
// function definition for calcGross
void calcGross (struct employee employeeData[],
int theSize)
{
	//declare local variables
	int i;
	float grossPay;
	float normalPay;
	float overtimePay;
 
	// add in code
	for (i = 0; i < theSize; ++i)
	{
		if (employeeData[i].hours < employeeData[i].overtimeHrs)
		{
			normalPay = 0.0;
		}
		else
		{
			normalPay = (employeeData[i].hours - employeeData[i].overtimeHrs) * employeeData[i].wageRate;
		}
 
		overtimePay = employeeData[i].overtimeHrs * employeeData[i].wageRate * OT_RATE;
		grossPay = normalPay + overtimePay;
 
		employeeData[i].grossPay = grossPay;
	}
} //CalcGross