<?php

class WeeklyTimesheet {

    public $standardHours;
    public $holidayHours;
    public $wage;
    
    public function __construct($sHours, $hHours) {
        $this->standardHours = $sHours;
        $this->holidayHours = $hHours;
    }
    
    public function calculatePay($wage) {
        if ($wage < 0)
            throw new Exception("Wage can't be negative");

        if ($this->standardHours < 0 || $this->holidayHours < 0)
            throw new Exception("Hours can't be negative");

        $extra = 0;
        $tempHours = $this->standardHours;
        if ($this->standardHours > 40) {
            $extra = $this->standardHours - 40;
            $tempHours = 40;
        }
        return $wage * ($tempHours + $extra * 1.5 + $this->holidayHours * 2);    

    }
    
    public function getTotalHours() {
        if ($this->standardHours < 0 || $this->holidayHours < 0)
            throw new Exception("Hours can't be negative");
        return $this->standardHours + $this->holidayHours;
    }
    
}

?>