<?php

namespace Models;

final class Cookie {

    const Session = null;
    const OneDay = 86400;
    const SevenDays = 604800;
    const ThirtyDays = 2592000;
    const SixMonths = 15811200;
    const OneYear = 31536000;
    const Lifetime = -1;

    private function __construct() {

    }

    public static function exists($name) {
        return isset($_COOKIE[$name]);
    }

    public static function isEmpty($name) {
        return empty($_COOKIE[$name]);
    }

    public static function get($name, $default = '') {
        return (isset($_COOKIE[$name]) ? $_COOKIE[$name] : $default);
    }

    public static function set($name, $value, $expiry = self::OneYear, $path = '/', $domain = false) {
        $retval = false;
        if (!headers_sent()) {
            if ($domain === false)
                $domain = $_SERVER['HTTP_HOST'];

            if ($expiry === -1)
                $expiry = 1893456000;
            elseif (is_numeric($expiry))
                $expiry += time();
            else
                $expiry = strtotime($expiry);

            $retval = @setcookie($name, $value, $expiry, $path, $domain);
            if ($retval)
                $_COOKIE[$name] = $value;
        }
        return $retval;
    }

    public static function delete($name, $path = '/', $domain = false, $remove_from_global = false) {
        $retval = false;
        if (!headers_sent()) {
            if ($domain === false)
                $domain = $_SERVER['HTTP_HOST'];
            $retval = setcookie($name, '', time() - 3600, $path, $domain);

            if ($remove_from_global)
                unset($_COOKIE[$name]);
        }
        return $retval;
    }

}