//********************************************************
//
// Assignment 5 - Functions
//
// Name: Mamadou Koita
//
// Class: C Programming, Spring 2025
//
// Date: March 02,2025
//
// Description: Program which determines overtime and 
// gross pay for a set of employees with outputs sent 
// to standard output (the screen).
//
// All functions are called by value
//
//********************************************************
 
#include <stdio.h>
 
// constants
#define SIZE 5
#define OVERTIME_RATE 1.5f
#define STD_WORK_WEEK 40.0f
 
// function prototypes
float getHours (long int clockNumber);
void printHeader (void);
void printEmp  (long int clockNumber, float wageRate, float hours,float overtimeHrs, float grossPay);
float calcOvertime(float hours);
float calcGrossPay(float wageRate, float hours, float overtimeHrs);
 
// complete:  Add other function prototypes here as needed
 
int main()
{
 
    /* Variable Declarations */
 
    long  int clockNumber[SIZE] = {98401,526488,765349,34645,127615}; // ID
    float grossPay[SIZE];     // gross pay
    float hours[SIZE];        // hours worked in a given week
    int   i;                  // loop and array index
    float overtimeHrs[SIZE];  // overtime hours
    float wageRate[SIZE] = {10.60,9.75,10.50,12.25,8.35}; // hourly wage rate
 
    // process each employee
    for (i = 0; i < SIZE; ++i){
 
        // Read in hours for employee
        hours[i] = getHours (clockNumber[i]); 
 
		overtimeHrs[i] = calcOvertime(hours[i]);
	
		grossPay[i] = calcGrossPay(wageRate[i], hours[i], overtimeHrs[i]);
 
    }
 
    // print the header info
    printHeader();
 
    // print out each employee
    for (i = 0; i < SIZE; ++i){
 
        // Print all the employees - call by value
        printEmp(clockNumber[i], wageRate[i], hours[i], overtimeHrs[i], grossPay[i]);
  
    }
 
    return (0);
 
} // main
 
//**************************************************************
// Function: getHours 
// 
// Purpose: Obtains input from user, the number of hours worked 
// per employee and stores the result in a local variable 
// that is passed back to the calling function. 
// 
// Parameters: clockNumber - The unique employee ID
// 
// Returns: hoursWorked - hours worked in a given week
//  

 


 
// complete: Add other functions here as needed
// ... remember your comment block headers for each function 

// function to achieve the hours worked from the user
float getHours(long int clockNumber) {
    float hoursWorked;
    printf("\nEnter hours worked by employee # %06li: ", clockNumber);
    scanf("%f", &hoursWorked);
    return hoursWorked;
}
 
// Function to calculate the overtime hours
float calcOvertime(float hours) {
    return (hours > STD_WORK_WEEK) ? (hours - STD_WORK_WEEK) : 0.0f;
}
 
// Function to calculate the gross pay
float calcGrossPay(float wageRate, float hours, float overtimeHrs) {
    float regularPay = (hours - overtimeHrs) * wageRate;
    float overtimePay = overtimeHrs * wageRate * OVERTIME_RATE;
    return regularPay + overtimePay;
}
 
// Function to print the table header
void printHeader(void) {
    printf("\n\n*** Pay Calculator ***\n");
    printf("\n------------------------------------------------\n");
    printf("   Clock#   Wage   Hours   OT     Gross\n");
    printf("------------------------------------------------\n");
}
 
// final Function to print employee results
void printEmp(long int clockNumber, float wageRate, float hours, float overtimeHrs, float grossPay) {
    printf(" %06li   %5.2f   %5.1f   %5.1f   %7.2f\n", clockNumber, wageRate, hours, overtimeHrs, grossPay);
}