Current File : /home/resuelf/www/wp-content/plugins/nitropack/classes/WordPress/Notifications.php

<?php
namespace NitroPack\WordPress;
use NitroPack\HttpClient\HttpClient;
use \NitroPack\SDK\Filesystem;

class Notifications {
    private $cacheTtl = 3600;
    private $nitro;
    private $notifications;

    public function __construct($nitro) {
        $this->nitro = $nitro;
        $this->notifications = NULL;
    }

    public function get($type = NULL) {
	    if ($this->notifications === NULL) {
		    $this->load();
	    }

	    if (isset($this->notifications[$this->nitro->getSiteId()])) {
		    $result = $this->notifications[$this->nitro->getSiteId()];
		    if ($type) {
			    $notifications = isset($result['notifications'][$type]) ? $result['notifications'][$type] : [];
		    } else {
			    $notifications = $result['notifications'];
		    }
	    } else {
		    $notifications = [];
	    }

	    return apply_filters('get_nitropack_notifications', $notifications, $type);
    }

    private function load() {
        $this->notifications = [];

        $notificationsFile = nitropack_trailingslashit(NITROPACK_DATA_DIR) . 'notifications.json';
        if(Filesystem::fileExists($notificationsFile)) {
            $this->notifications = json_decode(Filesystem::fileGetContents($notificationsFile), true);
            if (!empty($this->notifications) && isset($this->notifications[$this->nitro->getSiteId()])) {
                $result = $this->notifications[$this->nitro->getSiteId()];
                if ($result['last_modified'] + $this->cacheTtl > time()) { // The cache is still fresh
                    $this->removeExpiredSystemNotifications();
                    return;
                }
            }
        }

        if ($this->nitro->isConnected()) {
            try {
                $result = $this->fetch();
                $this->notifications[$this->nitro->getSiteId()] = [
                    'last_modified' => time(),
                    'notifications' => $result
                ];
                Filesystem::filePutContents($notificationsFile, json_encode($this->notifications));
            } catch (\Exception $e) {
                $this->notifications[$this->nitro->getSiteId()] = [ // We need this entry in order to make use of the cache logic
                    'last_modified' => time(),
                    'error' => $e->getMessage(),
                    'notifications' => []
                ];
                Filesystem::filePutContents($notificationsFile, json_encode($this->notifications));
            }
        }
    }

    private function fetch() {
        $notificationsUrl = get_nitropack_integration_url('notifications_json');
        $client = new HttpClient($notificationsUrl);
        $client->setHeader("x-nitro-platform", "wordpress");
        $client->fetch();
        $resp = $client->getStatusCode() == 200 ? json_decode($client->getBody(), true) : false;
        return $resp ? $resp['notifications'] : [];
    }
    
    private function removeExpiredSystemNotifications()
    {
        if (isset($this->notifications[$this->nitro->getSiteId()]['notifications']['system'])) {
            date_default_timezone_set('UTC');
            foreach ($this->notifications[$this->nitro->getSiteId()]['notifications']['system'] as $key => $notification) {
                if (strtotime($notification['end_date']) < time()) {
                    unset($this->notifications[$this->nitro->getSiteId()]['notifications']['system'][$key]);
                }
            }
        }
    }
}