<?php

namespace common\components;


class StopWatch
{

    public $start;

    public $splits = [];

    public $stop;

//    public function _(){
//        $this->start();
//    }
    public function __construct()
    {
                $this->start();
    }


    public function start()
    {
        $this->start = $this->time();
    }

    public function split()
    {
        $this->splits[] = $this->time();
        return $this->getSplit();
    }

    public function stop()
    {
        $this->stop = $this->time();
    }

    function time()
    {
        return time();
    }

    function diff($start, $end)
    {
        if (!isset($start) || !isset($end)) {
            return -1;
        }
        return $end - $start;
    }

    function getSplit()
    {
        $lastSplit = null;
        if (isset($this->stop)) {
            $lastSplit = $this->stop;
        } else {
            $count = count($this->splits);
            if ($count > 0) {
                $lastSplit = $this->splits[$count - 1];
            }
        }
        return $this->diff($this->start, $lastSplit);
    }
    function getTotal(){
        return $this->diff($this->start, $this->stop);

    }


}