<?php
 
 namespace Illuminate\Support;
 
 use DateInterval;
 use DateTimeInterface;
 
 trait InteractsWithTime
 {
     /**
      * Get the number of seconds until the given DateTime.
      *
      * @param  \DateTimeInterface|\DateInterval|int  $delay
      * @return int
      */
     protected function secondsUntil($delay)
     {
         $delay = $this->parseDateInterval($delay);
 
         return $delay instanceof DateTimeInterface
                             ? max(0, $delay->getTimestamp() - $this->currentTime())
                             : (int) $delay;
     }
 
     /**
      * Get the "available at" UNIX timestamp.
      *
      * @param  \DateTimeInterface|\DateInterval|int  $delay
      * @return int
      */
     protected function availableAt($delay = 0)
     {
         $delay = $this->parseDateInterval($delay);
 
         return $delay instanceof DateTimeInterface
                             ? $delay->getTimestamp()
                             : Carbon::now()->addRealSeconds($delay)->getTimestamp();
     }
 
     /**
      * If the given value is an interval, convert it to a DateTime instance.
      *
      * @param  \DateTimeInterface|\DateInterval|int  $delay
      * @return \DateTimeInterface|int
      */
     protected function parseDateInterval($delay)
     {
         if ($delay instanceof DateInterval) {
             $delay = Carbon::now()->add($delay);
         }
 
         return $delay;
     }
 
     /**
      * Get the current system time as a UNIX timestamp.
      *
      * @return int
      */
     protected function currentTime()
     {
         return Carbon::now()->getTimestamp();
     }
 }