//********************************************************
//
// Assignment 11 - Object Oriented Design
//
// Name: Anna Desouza
//
// Class: C Programming, Spring 2026
//
// Date: 4/26/26
//
// Description: An object oriented program design using
// C++ that will process our existing set of employees.
// It utilizes a class called Employee and generates an 
// array of objects that are used to store, calculate,
// and print out a simple report of inputted and calculated
// values.
//
//
// Object Oriented Design (using C++)
//
//********************************************************

#include <iomanip>   // std::setprecision, std::setw
#include <iostream>  // std::cout, std::fixed
#include <string>    // string functions

// define constants
#define EMP_SIZE 5
#define STD_HOURS 40.0
#define OT_RATE 1.5
#define MA_TAX_RATE 0.05
#define NH_TAX_RATE 0.0
#define VT_TAX_RATE 0.06
#define CA_TAX_RATE 0.07
#define DEFAULT_TAX_RATE 0.08
#define NAME_SIZE 20
#define TAX_STATE_SIZE 3
#define FED_TAX_RATE 0.25
#define FIRST_NAME_SIZE 10
#define LAST_NAME_SIZE 10

using namespace std;

// class Employee
class Employee
{
private:

	// private data available only to member functions

	string firstName;     // Employee First Name
	string lastName;      // Employee Last Name
	string taxState;      // Employee Tax State
	int clockNumber;      // Employee Clock Number
	float wageRate;       // Hourly Wage Rate
	float hours;          // Hours worked in a week
	float overTimeHrs;    // Overtime Hours worked
	float grossPay;       // Weekly Gross Pay
	float stateTax;       // State Tax
	float fedTax;         // Fed Tax
	float netPay;         // Net Pay

	// private member function to calculate Overtime Hours
	float calcOverTimeHrs ( )
	{
		// Calculate the overtime hours for the week
		if (hours > STD_HOURS)
			overTimeHrs = hours - STD_HOURS;  // ot hours
		else
			overTimeHrs = 0;  // no ot hours

		// the calculated overtime hours
		return (overTimeHrs);

	} // calcOverTimeHrs

	// private member function to calculate Gross Pay
	float calcGrossPay ( )
	{
		// Process gross pay based on if there is overtime
		if (overTimeHrs > 0)
		{
			// overtime
			grossPay = (STD_HOURS * wageRate) // normal pay
			           + (overTimeHrs * (wageRate * OT_RATE)); // ot pay
		}
		else  // no overtime pay
		{
			grossPay = wageRate * hours;  // normal pay
		}

		// the calculated gross pay
		return (grossPay);

	} // calcGrossPay

	// private member function to calculate State Tax
	float calcStateTax ()
	{

		float theStateTax; // calculated state tax

		theStateTax = grossPay;  // initialize to gross pay

		// calculate state tax based on where employee resides

		if (taxState.compare("MA") == 0)
			theStateTax *= MA_TAX_RATE;
		else if (taxState.compare("VT") == 0)
			theStateTax *= VT_TAX_RATE;
		else if (taxState.compare("NH") == 0)
			theStateTax *= NH_TAX_RATE;
		else if (taxState.compare("CA") == 0)
			theStateTax *= CA_TAX_RATE;
		else
			theStateTax *= DEFAULT_TAX_RATE;  // any other state

		// return the calculated state tax
		return (theStateTax);

	} // calcStateTax

	// private member function to calculate Federal Tax
	float calcFedTax ()
	{

		float theFedTax; // The calculated Federal Tax

		// Federal Tax is the same for all regardless of state
		theFedTax = grossPay * FED_TAX_RATE;

		// return the calculated federal tax
		return (theFedTax);

	} // calcFedTax

	// private member function to calculate Net Pay
	float calcNetPay ()
	{

		float theNetPay;      // total take home pay (minus taxes)
		float theTotalTaxes;  // total taxes owed

		// calculate the total taxes owed
		theTotalTaxes = stateTax + fedTax;

		// calculate the net pay
		theNetPay = grossPay - theTotalTaxes;

		// return the calculated net pay
		return (theNetPay);

	} // calcNetPay

public:

	// public member functions that can be called
	// to access private data member items

	// public no argument constructor with defaults
	Employee() {
		firstName="";
		lastName="";
		taxState="";
		clockNumber=0;
		wageRate=0;
		hours=0;
	}

	// public constructor with arguments passed to it
	Employee (string myFirstName, string myLastName, string myTaxState,
	          int myClockNumber, float myWageRate, float myHours);

	~Employee();  // destructor

	// public getter function prototypes to retrieve private data
	string getFirstName();
	string getLastName();
	string getTaxState();
	int getClockNumber();
	float getWageRate();
	float getHours();
	float getOverTimeHrs();
	float getGrossPay();

	// TODO - Add public getter function prototype to retrieve stateTax
	float getStateTax();
	// TODO - Add public getter function prototype to retrieve fedTax
	float getFedTax();

	// TODO - Add public getter function prototype to retrieve netPay
	float getNetPay();
	// member function prototype to print an Employee object
	void printEmployee(Employee e);  // passes an object

};  // class Employee

// constructor with arguments
Employee::Employee (string myFirstName, string myLastName, string myTaxState,
                    int myClockNumber, float myWageRate, float myHours)
{
	// initialize all member data items
	firstName = myFirstName;           // input
	lastName = myLastName;             // input

	// Convert myTaxState to uppercase if entered in lowercase
	if (std::islower(myTaxState[0]))
		myTaxState[0] = std::toupper(myTaxState[0]);
	if (std::islower(myTaxState[1]))
		myTaxState[1] = std::toupper(myTaxState[1]);

	taxState = myTaxState;             // input
	clockNumber = myClockNumber;       // input
	wageRate = myWageRate;             // input
	hours = myHours;                   // input
	overTimeHrs = calcOverTimeHrs();   // calculated overtime hours
	grossPay = calcGrossPay();         // calculated gross pay

	// TODO - set stateTax as the return from calcStateTax member function
	stateTax = calcStateTax();

	// TODO - set fedTax as the return from calcFedTax member function
	fedTax = calcFedTax();

	// TODO - set netPay as the return from calcNetPay member function
	netPay = calcNetPay();
} // Employee constructor

// Employee's destructor
Employee::~Employee()
{
	// nothing to print here, but could ...
}

// A "getter" function that will retrieve the First Name
string Employee::getFirstName() {
	return firstName;
}

// A "getter" function that will retrieve the employee Last Name
string Employee::getLastName() {
	return lastName;
}

// A "getter" function that will retrieve the employee Tax State
string Employee::getTaxState() {
	return taxState;
}

// A "getter" function that will retrieve the employee Clock Number
int Employee::getClockNumber() {
	return clockNumber;
}

// A "getter" function that will retrieve the employee Wage Rate
float Employee::getWageRate() {
	return wageRate;
}

// A "getter" function that will retrieve the employee Hours Worked
float Employee::getHours() {
	return hours;
}

// A "getter" function that will retrieve the employee Overtime Hours
float Employee::getOverTimeHrs() {
	return overTimeHrs;
}

// A "getter" function that will retrieve the employee Gross Pay
float Employee::getGrossPay() {
	return grossPay;
}

// TODO - Add a "getter" function that will retrieve the employee stateTax
float Employee::getStateTax() {
	return stateTax;
}
// TODO - Add a "getter" function that will retrieve the employee fedTax
float Employee::getFedTax() {
	return fedTax;
}

// TODO - Add a "getter" function that will retrieve the employee netPay
float Employee::getNetPay() {
	return netPay;
}

// a member function to print out the info in a given Employee object
void Employee::printEmployee(Employee e) {

	// Display the entered input on the Employee
	cout<<"\n\n *** Entered Details are *** \n";
	cout<<"\n First Name: "<< e.getFirstName();
	cout<<"\n Last Name: "<< e.getLastName();
	cout<<"\n Tax State: "<< e.getTaxState();
	cout <<"\n Clock Number: "<< e.getClockNumber();
	cout <<"\n Wage Rate: "<< e.getWageRate ();
	cout <<"\n Hours: "<< e.getHours ();

	// Display the calculated values of the Employee
	cout<<"\n\n *** Calculated Values are *** \n";

	// print out overtime hours based on the employee information entered
	cout <<"\n Overtime Hours : " <<  e.getOverTimeHrs();

	// print out gross pay based on the employee information entered
	cout <<"\n Gross Pay : $" <<  e.getGrossPay();

	// TODO - Add cout statement with call to stateTax getter function
	cout << "\n State Tax : $" << e.getStateTax();

	// TODO - Add cout statement with call to fedTax getter function
	cout << "\n Federal Tax : $" << e.getFedTax();

	// TODO - Add cout statement with call to netPay getter function
	cout << "\n Net Pay : $" << e.getNetPay();
	// add a new line to separate the next employee
	cout <<"\n";

} // printEmployee

// main function to start the processing
int main ()
{
	// local variables to collect user input

	string myFirstName;       // First Name to input
	string myLastName;        // Last Name to input
	string myTaxState;        // Tax State to input
	int myClockNumber;        // Clock Number to input
	float myWageRate;         // Wage Rate to input
	float myHours;            // Hours to input

	cout << fixed             // fix the number of decimal digits
	     << setprecision(2);  // to 2

	// Array of Objects to store each of our employees
	Employee e[EMP_SIZE];

	// prompt for information to read in employee information
	for (int i = 0; i < EMP_SIZE; ++i)
	{
		// Enter Employee Information
		cout <<"\n\n Enter Employee First Name: ";
		cin>>myFirstName ;
		cout <<"\n Enter Employee Last Name: ";
		cin>>myLastName ;
		cout <<"\n Enter Employee Tax State: ";
		cin>>myTaxState ;
		cout<<"\n Enter Employee Clock Number: ";
		cin>>myClockNumber;
		cout <<"\n Enter Employee Hourly Wage Rate: ";
		cin>>myWageRate;
		cout <<"\n Enter Employee Hours Worked for the Week: ";
		cin>>myHours;

		// Call our constructor to create an employee object
		// using the input entered above.  The constructor
		// will also put into motion the execution of the
		// various private member functions which will
		// calculate the overtime, gross pay, state tax, federal
		// tax, and net pay for the current employee.

		// The updated object will be returned and placed in the
		// the element of our array of objects named "e", using the index
		// of the current value of our loop index "i" ... thus: e[i]
		e[i] = {myFirstName, myLastName, myTaxState,
		        myClockNumber, myWageRate, myHours
		       };

		// Call the printEmployee public member function to display all
		// the inputted and calculated values for the current employee
		e[i].printEmployee(e[i]);

	} // for

	return 0;

} // main