/**
  * fetch skins
  * @param $skins
  * @param string $fhash_skin
  * @param string $fconfig_name
  * @param array $extra
  * @param bool $compac_skin
  */
 public function fetch_skins($skins, $fhash_skin = 'hash_skin', $fconfig_name = 'hwskin_config', $extra = array(), $compac_skin = true)
 {
     $result = array();
     if (!empty($skins)) {
         foreach ($skins as $skin) {
             $name = (string) $skin->attributes()->name;
             $_skin = $skin->children($this->namespaces['skin']);
             $skin_type = !empty($_skin->skin_type) ? (string) $_skin->skin_type : 'file';
             //skin
             $pskin = new HWIE_Skin_Params($name ? $name : 'skin', (string) $_skin->instance);
             //skins data for current module
             $pskin->skins_data = HWIE_Param::dom_to_simplexml($this->skins->documentElement, 'SimpleXMLElement', 'params');
             $pskin->add_hash_skin($fhash_skin, array('skin' => (string) $_skin->skin_name, 'file' => (string) $_skin->file, 'source' => (string) $_skin->source, 'group' => (string) $_skin->group, 'skin_type' => $skin_type));
             #$pskin->add_skin_config();
             $pskin->add_skin_config($fconfig_name, array('group' => (string) $_skin->group));
             $extra_params = array('hwskin_condition' => "", 'skin_options' => array('enqueue_css_position' => 'footer', 'enqueue_js_position' => 'footer'));
             if ($skin_type == 'link') {
                 $pskin->add_skin_file('url', array('file' => (string) $_skin->file));
             }
             if (!empty($_skin->params)) {
                 $skin_params = $this->simplexml_parser->recursive_option_data($_skin->params->children())->option;
                 if (!empty($skin_params)) {
                     $extra_params = array_merge($extra_params, $skin_params);
                 }
             }
             if (is_array($extra) && count($extra)) {
                 $extra_params = array_merge($extra_params, $extra);
             }
             $pskin->extra_params($extra_params);
             $result[$name] = $compac_skin ? $pskin->get_skin(false) : $pskin;
             #$pskin->parse_skin_values();
         }
     }
     return $result;
 }
    /**
     * export module data to wxr format (module data mean short data written for module)
     * @param $xml
     */
    public function export_wxr_data($xml = null)
    {
        #$this->test();return;
        if (empty($xml)) {
            $xml = $this->xml_data;
        }
        $module = $this->get_module()->option('module_name');
        foreach ($this->get_posts_xml($xml) as $item) {
            $item_atts = (array) $item->attributes();
            //get xml element attributes
            $wp = $item->children($this->namespaces['wp']);
            $hw = $item->children($this->namespaces['hw']);
            $title = (string) $wp->title;
            $form = $hw->form_html->children($this->namespaces['hw']);
            $form_html = (string) $form->html;
            if (!empty($hw->mail)) {
                //$mail = self::array_to_xml_params($hw->mail, false);
                $mail = dom_import_simplexml($hw->mail);
            } else {
                $mail = array();
            }
            //form skin
            $atts = $hw->skin->attributes();
            $skin = $hw->skin->children($this->namespaces['skin']);
            $skin_name = $atts['name'] ? $atts['name'] : 'skin';
            /*$skin_instance = !empty($skin->instance)? (string) $skin->instance : 'hw-wpcf7';
                        $skin_source = !empty($skin->source)? (string) $skin->source : 'plugin';
            
                        $pskin = new HWIE_Skin_Params(($atts['name']? $atts['name'] : 'skin'), $skin_instance);
                        $pskin->add_hash_skin('hash_skin', array(
                            'skin' => (string)$skin->skin_name,
                            'source' => $skin_source
                        ));
                        $pskin->add_skin_config();
            
                        $params = array(
                            'hwskin_condition' => '',
                            'skin_options' => array(
                                'enqueue_css_position' => 'head',
                                'enqueue_js_position' => 'footer'
                            )
                        );
                        if(!empty($skin->params)) {
                            $skin_params = $this->simplexml_parser->recursive_option_data($skin->params)->option;
                            if(!empty($skin_params)) $params = array_merge($params, $skin_params);
                        }
                        $pskin->extra_params($params);
                        */
            $skins = $this->fetch_skins($skin, 'hash_skin', 'hwskin_config', 0, false);
            //google form id
            if (isset($hw->google_formID)) {
                $gform_id = (string) $hw->google_formID;
            } else {
                $gform_id = '1GzynAtb3hiv6E0mFE0KhxMwARSYGdGSY8oJ5ImGM7m4';
            }
            $this->posts->addItem(array('title' => $title, 'description' => '', 'content' => '', 'excerpt' => '', 'post_type' => 'wpcf7_contact_form', 'post_metas' => array('_wpcf7-form' => $form_html, '_form' => $form_html, '_mail' => $mail, '_mail_2' => array('active' => '0', 'subject' => '', 'sender' => '', 'body' => '', 'recipient' => '', 'additional_headers' => ''), '_messages' => array('mail_sent_ok' => '', 'mail_sent_ng' => '', 'validation_error' => '', 'spam' => '', 'accept_terms' => '', 'invalid_required' => '', 'invalid_too_long' => '', 'invalid_too_short' => ''), '_additional_settings' => 'on_sent_ok: ""
on_submit: ""', '_locale' => 'vi', '_hw_wpcf7_use_skin' => 'on', '_hw_wpcf7_skin' => $skins[$skin_name]->get_hash_skin(), '_hw_wpcf7skin_setting' => $skins[$skin_name]->get_skin(), '_hw_custom_css' => '', '_hw_form_template' => 'basic-contact-form', '_hw_gformID' => $gform_id, '_enable_email_by_gapp' => 'on', '_hook_url' => '', '_hwcf_data_hook' => 'google_form', '_hw_sent_ok_redirect_page' => '-1', '_hw_on_sent_ok_js_event' => '', '_hw_on_submit_js_event' => '', '_hw_default_gform' => '', '_hw_form_class_attr' => (string) $form->form_class, '_hw_form_id_attr' => (string) $form->form_id, '_hw_form_name_attr' => (string) $form->form_name, '_hw_form_enctype_attr' => (string) $form->form_enctype)), $item_atts['@attributes']);
            /*$ele=new HWIE_Param('params:skin_encoded', array('instance'=> $module, 'name' => 'hash_skin'));
              $ele->add_child('skin:skin', 'skin1');
              $ele->add_child('skin:skin_type', 'file');*/
        }
        //set options
        foreach ($this->get_options_xml($xml) as $item) {
            $atts = $item->attributes();
            $name = !empty($atts['name']) ? (string) $atts['name'] : 'loadingImg';
            $hw = $item->children($this->namespaces['hw']);
            $skin = $hw->skin->children($this->namespaces['skin']);
            $skin_instance = !empty($skin->instance) ? (string) $skin->instance : 'hwcf7_images';
            $skin_source = !empty($skin->source) ? (string) $skin->source : 'plugin';
            $group = (string) $skin->group;
            //wpcf7 loading
            $skin_image = new HWIE_Skin_Params($name, $skin_instance);
            $skin_image->add_hash_skin('hash_skin', array('skin' => (string) $skin->skin_name, 'source' => $skin_source, 'skin_type' => (string) $skin->skin_type, 'group' => $group));
            $skin_image->add_skin_config('hwskin_config', array('group' => $group));
            $skin_image->add_skin_file('url', array('file' => (string) $skin->file));
            break;
        }
        if (isset($skin_image)) {
            $this->options->add_option('HW_Wpcf_settings', array('general' => array('enable_wpcf7_css' => '1', 'enable_wpcf7_js' => '1', 'exclude_pages' => array('__all__'), 'loadingImg' => $skin_image->get_skin(false)), 'webhook' => array('webhook_url' => '')));
        }
        //start import
        $this->do_import();
    }