//********************************************************************
//
//  hourly.cpp
//  CSCI 241 Inheritance and Polymorphism Example
//
//********************************************************************

#include <iostream>
#include <string>
#include "hourly.h"

using std::cout;
using std::endl;
using std::string;

/**
 * Constructor for hourly employee.
 *
 * @param first_name The employee's first name.
 * @param last_name The employee's last name.
 * @param ssn The employee's Social Security Number.
 * @param wage The employee's hourly wage.
 * @param hours The employee's number of hours worked.
 *
 * @note The first name, last name, and ssn are passed to the base
 *       class constructor.
 ********************************************************************/
hourly::hourly(const string& first_name, const string& last_name,
               const string& ssn, double wage, double hours) :
               employee(first_name, last_name, ssn)
{
    set_wage(wage);
    set_hours(hours);
}

/**
 * Accessor function for hourly wage data member.
 *
 * @return The employee's hourly wage.
 ********************************************************************/
double hourly::get_wage() const
{
    return wage;
}

/**
 * Mutator function for hourly wage data member.
 *
 * @param wage The new hourly wage.
 *
 * @note If an attempt is made to set the wage to a negative value,
 *       the wage will instead be set to 0.
 ********************************************************************/
void hourly::set_wage(double wage)
{
    this->wage = (wage < 0.0) ? 0.0 : wage;
}

/**
 * Accessor function for hours worked data member.
 *
 * @return The employee's hours worked.
 ********************************************************************/
double hourly::get_hours() const
{
    return hours;
}

/**
 * Mutator function for hours worked data member.
 *
 * @param wage The new hours worked.
 *
 * @note If an attempt is made to set the hours worked to an
 *       impossible value, the hours worked will instead be set to 0.
 ********************************************************************/
void hourly::set_hours(double hours)
{
    this->hours = (hours >= 0.0 && hours <= 168.0) ? hours : 0.0;
}

/**
 * Computes the employee's earnings for the week.
 *
 * @return The computed earnings.
 *
 * @note Hours worked over 40 are paid at time and a half.
 ********************************************************************/
double hourly::earnings() const
{
    if (hours <= 40)    // No overtime.
        return wage * hours;
    else                // Overtime is paid at time and a half.
        return 40 * wage + (hours - 40) * wage * 1.5;
}

/**
 * Prints information for hourly employee.
 ********************************************************************/
void hourly::print() const
{
    cout << "Hourly employee:\n";
    
    // Call employee version of print() to print name and ssn.
    employee::print();
    
    // Print remaining information.
    cout << "Hours worked: " << hours << endl;
    cout << "Hourly wage: $" << wage << endl;
}