lse
                            $time['start_time']['current_day'] = "00:00";

                        $time['type']=$schedule_value['type'];
                        $next_timestamp = WPvivid_Schedule_addon::get_start_time($time);
                    }
                    $current_timestamp = time();
                    if ($current_timestamp - $next_timestamp >= 86400) {
                        echo '<div class="notice notice-warning is-dismissible"><p>' . esc_html__('We have detected that a backup was not triggered as scheduled. Please check whether your server-level cron is working properly.', 'wpvivid-backup-pro') . '</p></div>';
                        break;
                    }
                }
            }
        }
    }

    public function check_extensions()
    {
        $common_setting = get_option('wpvivid_common_setting');
        $db_connect_method = isset($common_setting['options']['wpvivid_common_setting']['db_connect_method']) ? $common_setting['options']['wpvivid_common_setting']['db_connect_method'] : 'wpdb';
        $need_php_extensions = array();
        $need_extensions_count = 0;
        $extensions=get_loaded_extensions();
        if(!function_exists("curl_init")){
            $need_php_extensions[$need_extensions_count] = 'curl';
            $need_extensions_count++;
        }
        if(!class_exists('PDO')){
            $need_php_extensions[$need_extensions_count] = 'PDO';
            $need_extensions_count++;
        }
        if(!function_exists("gzopen"))
        {
            $need_php_extensions[$need_extensions_count] = 'zlib';
            $need_extensions_count++;
        }
        if(!array_search('pdo_mysql',$extensions) && $db_connect_method === 'pdo')
        {
            $need_php_extensions[$need_extensions_count] = 'pdo_mysql';
            $need_extensions_count++;
        }
        if(!array_search('mbstring',$extensions))
        {
            $need_php_extensions[$need_extensions_count] = 'mbstring';
            $need_extensions_count++;
        }
        if(!empty($need_php_extensions)){
            $msg = '';
            $figure = 0;
            foreach ($need_php_extensions as $extension){
                $figure++;
                if($figure == 1){
                    $msg .= $extension;
                }
                else if($figure < $need_extensions_count) {
                    $msg .= ', '.$extension;
                }
                else if($figure == $need_extensions_count){
                    $msg .= ' and '.$extension;
                }
            }
            if($figure == 1){
                echo '<div class="notice notice-error"><p>'.sprintf(__('The %s extension is not detected. Please install the extension first.', 'wpvivid-backup-pro'), $msg).'</p></div>';
            }
            else{
                echo '<div class="notice notice-error"><p>'.sprintf(__('The %s extensions are not detected. Please install the extensions first.', 'wpvivid-backup-pro'), $msg).'</p></div>';
            }
        }

        if (!class_exists('PclZip')) include_once(ABSPATH.'/wp-admin/includes/class-pclzip.php');
        if (!class_exists('PclZip')) {
            echo '<div class="notice notice-error"><p>'.__('Class PclZip is not detected. Please update or reinstall your WordPress.', 'wpvivid-backup-pro').'</p></div>';
        }

        $hide_notice = get_option('wpvivid_hide_wp_cron_notice', false);
        if(defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON && $hide_notice === false){
            echo '<div class="notice notice-error notice-wp-cron is-dismissible"><p>'.__('In order to execute the scheduled backups properly, please set the DISABLE_WP_CRON constant to false.', 'wpvivid-backup-pro').'</p></div>';
        }
    }

    public function check_custom_backup_default_exclude()
    {
        $custom_backup_history = get_option('wpvivid_custom_backup_history');

        $default_exclude = array();
        $uploads_exclude = get_option('wpvivid_custom_backup_default_exclude_uploads', $default_exclude);
        $upload_dir = wp_upload_dir();
        $upload_path = str_replace('\\','/', $upload_dir['basedir']);
        $upload_path = explode('/', $upload_path);
        $upload_path = implode(DIRECTORY_SEPARATOR, $upload_path);

        $check_upload_array = array('backwpup', 'ShortpixelBackups', 'backup', 'backup-guard');
        foreach ($check_upload_array as $upload_folder){
            if(file_exists($upload_path.DIRECTORY_SEPARATOR.$upload_folder)){
                if(!in_array($upload_folder, $uploads_exclude)){
                    $uploads_exclude[] = $upload_folder;
                    $need_push_array = true;
                    if(!empty($custom_backup_history['uploads_option']['exclude_uploads_list'])){
                        foreach ($custom_backup_history['uploads_option']['exclude_uploads_list'] as $key => $value){
                            if($key === $upload_folder){
                                $need_push_array = false;
                            }
                        }
                    }
                    if($need_push_array){
                        $temp_array = array();
                        $temp_array['name'] = $upload_folder;
                        $temp_array['type'] = 'wpvivid-custom-li-folder-icon';
                        $custom_backup_history['uploads_option']['exclude_uploads_list'][$upload_folder] = $temp_array;
                    }
                }
            }
        }

        update_option('wpvivid_custom_backup_history', $custom_backup_history, 'no');
        update_option('wpvivid_custom_backup_default_exclude_uploads', $uploads_exclude, 'no');
    }

    public function ajax_check_security($role='administrator')
    {
        check_ajax_referer( 'wpvivid_ajax', 'nonce' );

        if(is_admin()&&current_user_can('administrator'))
        {
            return;
        }
        else
        {
            $check=is_admin()&&current_user_can($role);
            $check=apply_filters('wpvivid_ajax_check_security',$check);
            if(!$check)
            {
                die();
            }
        }
    }

    public function is_plugin_enabled($is_enabled, $plugin_slug)
    {
        if ( ! function_exists( 'is_plugin_active' ) ) {
            require_once ABSPATH . 'wp-admin/includes/plugin.php';
        }
        if ( ! function_exists( 'get_plugins' ) ) {
            require_once ABSPATH . 'wp-admin/includes/plugin.php';
        }

        $is_installed=false;
        $is_actived=false;

        $all_plugins = get_plugins();
        if ( isset( $all_plugins[ $plugin_slug ] ) ) {
            $is_installed = true;
        }

        if ( is_plugin_active( $plugin_slug ) ) {
            $is_actived = true;
        }

        if($is_installed && $is_actived)
        {
            $is_enabled=true;
        }
        else
        {
            $is_enabled=false;
        }

        return $is_enabled;
    }

    public function dismiss_remote_password_crypt_import_notice()
    {
        global $wpvivid_backup_pro;
        $wpvivid_backup_pro->ajax_check_security('manage_options');

        delete_option('wpvivid_remote_password_crypt_import_notice');

        echo json_encode(array('result' => 'success'));
        die();
    }
}