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<?php

/*
 * This file is part of jwt-auth.
 *
 * (c) Sean Tymon <tymon148@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Tymon\JWTAuth\Support;

use Carbon\Carbon;

class Utils
{
    /**
     * Get the Carbon instance for the current time.
     *
     * @return \Carbon\Carbon
     */
    public static function now()
    {
        return Carbon::now('UTC');
    }

    /**
     * Get the Carbon instance for the timestamp.
     *
     * @param  int  $timestamp
     *
     * @return \Carbon\Carbon
     */
    public static function timestamp($timestamp)
    {
        return Carbon::createFromTimestampUTC($timestamp)->timezone('UTC');
    }

    /**
     * Checks if a timestamp is in the past.
     *
     * @param  int  $timestamp
     * @param  int  $leeway
     *
     * @return bool
     */
    public static function isPast($timestamp, $leeway = 0)
    {
        $timestamp = static::timestamp($timestamp);

        return $leeway > 0
            ? $timestamp->addSeconds($leeway)->isPast()
            : $timestamp->isPast();
    }

    /**
     * Checks if a timestamp is in the future.
     *
     * @param  int  $timestamp
     * @param  int  $leeway
     *
     * @return bool
     */
    public static function isFuture($timestamp, $leeway = 0)
    {
        $timestamp = static::timestamp($timestamp);

        return $leeway > 0
            ? $timestamp->subSeconds($leeway)->isFuture()
            : $timestamp->isFuture();
    }
}