<?php


use Wpae\App\Service\VariationOptions\VariationOptionsFactory;

final class XmlExportCpt
{
	private static $engine = false;

	private static $userData = array();

	public static function prepare_data( $entry, $exportOptions,
                                         $xmlWriter, &$acfs, &$woo, &$woo_order, $implode_delimiter, $preview, $is_item_data = false, $subID = false )
	{
		$variationOptionsFactory = new  VariationOptionsFactory();
		$variationOptions = $variationOptionsFactory->createVariationOptions(PMXE_EDITION);
        if($entry instanceof \WP_Post) {
            $entry = $variationOptions->preprocessPost($entry);
        }
		$article = array();

		if(!isset($entry->ID)) {
			$entryId = $entry->order_id ?? $entry->id;
			$entry->ID = $entry->id;
		} else {
			$entryId = $entry->order_id ?? $entry->ID;
		}

		// associate exported post with import
		if ( ! $is_item_data and wp_all_export_is_compatible() && isset($exportOptions['is_generate_import']) && isset($exportOptions['import_id']) &&
            (!isset($exportOptions['enable_real_time_exports'])
                || !$exportOptions['enable_real_time_exports']))
		{
			$postRecord = new PMXI_Post_Record();
			$postRecord->clear();

			$postRecord->getBy(array(
				'post_id' => $entryId,
				'import_id' => $exportOptions['import_id'],
			));

			if ($postRecord->isEmpty()){
				$postRecord->set(array(
					'post_id' => $entryId,
					'import_id' => $exportOptions['import_id'],
					'unique_key' => $entryId,
					'product_key' => ''
				))->save();
			}
			unset($postRecord);
		}

		$is_xml_export = false;

		if ( ! empty($xmlWriter) && $exportOptions['export_to'] == XmlExportEngine::EXPORT_TYPE_XML && !in_array($exportOptions['xml_template_type'], array('custom', 'XmlGoogleMerchants')) ){
			$is_xml_export = true;
		}

		if(isset($exportOptions['ids']) && is_array($exportOptions['ids'])) {
			foreach ($exportOptions['ids'] as $ID => $value) {
                if(is_array($exportOptions['cpt'] ?? '') && in_array('shop_order', $exportOptions['cpt'])) {
                    $pType = 'shop_order';
                } else {
                    $pType = $entry->post_type;
                }
				if ($is_item_data and $subID != $ID) continue;

				// skip shop order items data
				if ($pType == "shop_order" and strpos($exportOptions['cc_label'][$ID], "item_data__") !== false and !$is_item_data) continue;

				$fieldName = apply_filters('wp_all_export_field_name', wp_all_export_parse_field_name($exportOptions['cc_name'][$ID]), XmlExportEngine::$exportID);
				$fieldValue = str_replace("item_data__", "", $exportOptions['cc_value'][$ID]);
				$fieldLabel = str_replace("item_data__", "", $exportOptions['cc_label'][$ID]);
				$fieldSql = $exportOptions['cc_sql'][$ID];
				$fieldPhp = $exportOptions['cc_php'][$ID];
				$fieldCode = $exportOptions['cc_code'][$ID];
				$fieldType = $exportOptions['cc_type'][$ID];
				$fieldOptions = $exportOptions['cc_options'][$ID];

				if($fieldType !== 'date') {
                    $fieldSettings = empty(XmlExportEngine::$exportOptions['cc_settings'][$ID]) ? $fieldOptions : XmlExportEngine::$exportOptions['cc_settings'][$ID];
                } else {
				    $fieldSettings = XmlExportEngine::$exportOptions['cc_settings'][$ID];
                }

                $fieldSnippet = (!empty($fieldPhp) and !empty($fieldCode)) ? $fieldCode : false;

                if (empty($fieldName) or empty($fieldType) or !is_numeric($ID)) continue;

				$element_name = (!empty($fieldName)) ? $fieldName : 'untitled_' . $ID;
				$element_name_ns = '';

				if ($is_xml_export) {

					// XML 1.0 Fifth Edition allowed characters
					$startCharRegEx = '~^[^:A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\x{2FF}\\x{370}-\\x{37D}\\x{37F}-\\x{1FFF}\\x{200C}-\\x{200D}\\x{2070}-\\x{218F}\\x{2C00}-\\x{2FEF}\\x{3001}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFFD}\\x{10000}-\\x{EFFFF}]+~u';
					$charRegEx = '~[^:A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\x{2FF}\\x{370}-\\x{37D}\\x{37F}-\\x{1FFF}\\x{200C}-\\x{200D}\\x{2070}-\\x{218F}\\x{2C00}-\\x{2FEF}\\x{3001}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFFD}\\x{10000}-\\x{EFFFF}.\\-0-9\\xB7\\x{0300}-\\x{036F}\\x{203F}-\\x{2040}]+~u';

					$element_name = (!empty($fieldName)) ? preg_replace($charRegEx, '', preg_replace($startCharRegEx, '', $fieldName)) : 'untitled_' . $ID;

					if (strpos($element_name, ":") !== false) {
						$element_name_parts = explode(":", $element_name);
						$element_name_ns = (empty($element_name_parts[0])) ? '' : $element_name_parts[0];
						$element_name = (empty($element_name_parts[1])) ? 'untitled_' . $ID : preg_replace('/[^a-z0-9_-]/i', '', $element_name_parts[1]);
					}

					$element_name = empty($element_name) ? 'untitled_' . $ID : $element_name;
				}

				// Use this in simple xml feed
				if (XmlExportEngine::$exportOptions['export_to'] == XmlExportEngine::EXPORT_TYPE_XML && XmlExportEngine::$exportOptions['xml_template_type'] !==  'custom' && isset($exportOptions['cc_combine_multiple_fields'][$ID]) && $exportOptions['cc_combine_multiple_fields'][$ID]) {

				    $combineMultipleFieldsValue = $exportOptions['cc_combine_multiple_fields_value'][$ID];

                    $combineMultipleFieldsValue = stripslashes($combineMultipleFieldsValue);
                    $snippetParser = new \Wpae\App\Service\SnippetParser();
                    $snippets = $snippetParser->parseSnippets($combineMultipleFieldsValue);

                    // Re-use the engine object if we've already initialized it as it's costly.
					if(!is_object(self::$engine)){

						self::$engine = new XmlExportEngine(XmlExportEngine::$exportOptions);
						self::$engine->init_available_data();
						self::$engine->init_additional_data();

					}

                    $snippets = self::$engine->get_fields_options($snippets);

                    $snippets['order_item_per_row'] = isset($exportOptions['order_items_per_row']) ? $exportOptions['order_items_per_row'] : 1;
                    $snippets['xml_template_type'] = $exportOptions['xml_template_type'];
					$articleData = self::prepare_data($entry, $snippets, false, $acfs, $woo, $woo_order, $implode_delimiter, false);

					$wpaeString = new WpaeString();

                    foreach ($articleData as $snippetName => $articleValue) {

                        if($wpaeString->isBetween($combineMultipleFieldsValue, "{".$snippetName."}", '[',']')) {
                            // Replace snippets in functions
                            $combineMultipleFieldsValue = str_replace("{" . $snippetName . "}", '$articleData**OPENARR**"'.$snippetName.'"**CLOSEARR**', $combineMultipleFieldsValue);
                        } else {
                            // Replace snippets not in functions
                            $combineMultipleFieldsValue = str_replace("{" . $snippetName . "}", $articleValue, $combineMultipleFieldsValue);
                        }
                    }

                    $functions = $snippetParser->parseFunctions($combineMultipleFieldsValue);

                    $combineMultipleFieldsValue = \Wpae\App\Service\CombineFields::prepareMultipleFieldsValue($functions, $combineMultipleFieldsValue, $articleData);

                    if($preview) {
                        $combineMultipleFieldsValue = trim(preg_replace('~[\r\n]+~', ' ', htmlspecialchars($combineMultipleFieldsValue)));
                    }

                    wp_all_export_write_article($article, $element_name, pmxe_filter($combineMultipleFieldsValue, $fieldSnippet));
				} else {

					// Run addons export field hooks
					$addons = XmlExportEngine::get_addons();
					$addonFieldOptions = maybe_unserialize($fieldOptions);

					if (in_array($fieldType, $addons)) {
						$article = apply_filters(
							"pmxe_{$fieldType}_addon_export_field",
							$article,
							$addonFieldOptions,
							$exportOptions,
							$ID,
							$entry,
							$entry->ID,
							$xmlWriter,
							$element_name,
							$element_name_ns,
							$fieldSnippet,
							$preview
						);
					}

					switch ($fieldType) {
						case 'id':
							// For ID columns make first element in lowercase for Excel export
							if ($element_name == 'ID' && !$ID && isset($exportOptions['export_to']) && $exportOptions['export_to'] == 'csv' && isset($exportOptions['export_to_sheet']) && $exportOptions['export_to_sheet'] != 'csv') {
								$element_name = 'id';
							}
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_id', pmxe_filter($entry->ID, $fieldSnippet), $entry->ID));
							break;
						case 'permalink':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_guid', pmxe_filter(get_permalink(), $fieldSnippet), $entry->ID));
							break;
						case 'post_type':
							if ($entry->post_type == 'product_variation') $pType = 'product';
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_type', pmxe_filter($pType, $fieldSnippet), $entry->ID));
							break;
						case 'title':
							$val = apply_filters('pmxe_post_title', pmxe_filter($entry->post_title, $fieldSnippet));
							wp_all_export_write_article($article, $element_name, ($preview) ? trim(preg_replace('~[\r\n]+~', ' ', htmlspecialchars($val))) : $val, $entry->ID);
							break;
						case 'content':
							$postContent = $entry->post_content;

                            $field_settings = ( ! empty($fieldSettings) ) ? json_decode($fieldSettings, true) : false;
                            if ( empty($field_settings) or $field_settings['export_images_from_gallery'] )
                            {
                                // search for images in galleries
                                $galleries = array();
                                if (preg_match_all('%\[gallery[^\]]*ids="([^\s\]]*)"[^\]]*\]%is', $postContent, $matches, PREG_PATTERN_ORDER)) {
                                    $galleries = array_unique(array_filter($matches[1]));
                                }
                                if ( ! empty($galleries) ){
                                    foreach ($galleries as $key => $gallery) {
                                        $gallery_images = array();
                                        $imgs = array_unique(array_filter(explode(",", $gallery)));
                                        if (!empty($imgs)){
                                            foreach ($imgs as $img) {
                                                if ( is_numeric($img) ){
                                                    $attachment = get_post($img);
                                                    $gallery_images[] = base64_encode(json_encode(array(
                                                        'url' => wp_get_attachment_url($img),
                                                        'title' => $attachment->post_title,
                                                        'caption' => wp_get_attachment_caption($img),
                                                        'alt' => get_post_meta($img, '_wp_attachment_image_alt', true),
                                                        'description' => $attachment->post_content
                                                    )));
                                                }
                                            }
                                        }
                                        $postContent = str_replace("ids=\"". implode(",", $imgs) ."\"", "ids=\"". implode(",", $gallery_images) ."\"", $postContent);
                                    }
                                }
                            }

							if (isset($exportOptions['export_to']) && $exportOptions['export_to'] == XmlExportEngine::EXPORT_TYPE_XML && $exportOptions['xml_template_type'] == 'custom') {
								$postContent = str_replace('[', '**OPENSHORTCODE**', $postContent);
								$postContent = str_replace(']', '**CLOSESHORTCODE**', $postContent);
							}

							$val = apply_filters('pmxe_post_content', pmxe_filter($postContent, $fieldSnippet), $entry->ID);
							wp_all_export_write_article($article, $element_name, ($preview) ? trim(preg_replace('~[\r\n]+~', ' ', htmlspecialchars($val))) : $val);
							break;

						// Media Attachments
						case 'attachments':
						case 'attachment_id':
						case 'attachment_url':
						case 'attachment_filename':
						case 'attachment_path':
						case 'attachment_title':
						case 'attachment_caption':
						case 'attachment_description':
						case 'attachment_alt':

							XmlExportMediaGallery::getInstance($entry->ID);

							$attachment_data = XmlExportMediaGallery::get_attachments($fieldType);

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_' . $fieldType, pmxe_filter(implode($implode_delimiter, $attachment_data), $fieldSnippet), $entry->ID));

							break;

						// Media Images
						case 'media':
						case 'image_id':
						case 'image_url':
						case 'image_filename':
						case 'image_path':
						case 'image_title':
						case 'image_caption':
						case 'image_description':
						case 'image_alt':
                        case 'image_featured':

							$field_options = json_decode($fieldOptions, true);

							XmlExportMediaGallery::getInstance($entry->ID);

							$images_data = XmlExportMediaGallery::get_images($fieldType, $field_options);

							$images_separator = empty($field_options['image_separator']) ? $implode_delimiter : $field_options['image_separator'];

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_' . $fieldType, pmxe_filter(implode($images_separator, $images_data), $fieldSnippet), $entry->ID));

							break;

						case 'date':
							$post_date = prepare_date_field_value($fieldSettings, get_post_time('U', true, $entry->ID), "Y-m-d H:i:s");
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_date', pmxe_filter($post_date, $fieldSnippet), $entry->ID));
							break;
						case 'post_modified':
							$post_date = prepare_date_field_value($fieldSettings, get_post_modified_time('U', true, $entry->ID), "Y-m-d H:i:s");
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_modified_date', pmxe_filter($post_date, $fieldSnippet), $entry->ID));
							break;
						case 'parent':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_parent', pmxe_filter($entry->post_parent, $fieldSnippet), $entry->ID));
							break;
						case 'parent_slug':
							$val = '';
							if ($entry->post_parent != 0) {
								$pages = get_post_ancestors($entry->ID);
								$slugs = array();
								if (!empty($pages)) {
									foreach ($pages as $page) {
										$the_post = get_post($page);
										$slugs[] = $the_post->post_name;
									}
									$val = implode("/", array_reverse($slugs));
								} else {
									$the_post = get_post($entry->ID);
									$val = $the_post->post_name;
								}
							} else {
								$val = $entry->post_parent;
							}
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_parent_slug', pmxe_filter($val, $fieldSnippet), $entry->ID));
							break;
						case 'comment_status':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_comment_status', pmxe_filter($entry->comment_status, $fieldSnippet), $entry->ID));
							break;
						case 'ping_status':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_ping_status', pmxe_filter($entry->ping_status, $fieldSnippet), $entry->ID));
							break;
						case 'template':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_template', pmxe_filter(get_post_meta($entry->ID, '_wp_page_template', true), $fieldSnippet), $entry->ID));
							break;
						case 'order':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_menu_order', pmxe_filter($entry->menu_order, $fieldSnippet), $entry->ID));
							break;
						case 'status':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_status', pmxe_filter($entry->post_status, $fieldSnippet), $entry->ID));
							break;
						case 'format':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_format', pmxe_filter(get_post_format($entry->ID), $fieldSnippet), $entry->ID));
							break;
						case 'author':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_author', pmxe_filter($entry->post_author, $fieldSnippet), $entry->ID));
							break;
						case 'author_username':
							$userData = self::getUserdata($entry->post_author);
							if(is_object($userData)) {
                                $userDataValue = $userData->user_login;
                            } else {
							    $userDataValue = '';
                            }

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_author', pmxe_filter($userDataValue, $fieldSnippet), $entry->ID));
							break;
						case 'author_email':
							$userData = self::getUserdata($entry->post_author);
							if(is_object($userData)) {
                                $userDataValue = $userData->user_email;
                            } else {
							    $userDataValue = '';
                            }

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_author', pmxe_filter($userDataValue, $fieldSnippet), $entry->ID));
							break;
						case 'author_first_name':
							$userData = self::getUserdata($entry->post_author);
							if(is_object($userData)) {
                                $userDataValue = $userData->first_name;
                            } else {
							    $userDataValue = '';
                            }

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_author', pmxe_filter($userDataValue, $fieldSnippet), $entry->ID));
							break;
						case 'author_last_name':
                            $userData = self::getUserdata($entry->post_author);
                            if(is_object($userData)) {
                                $userDataValue = $userData->last_name;
                            } else {
                                $userDataValue = '';
                            }

                            wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_author', pmxe_filter($userDataValue, $fieldSnippet), $entry->ID));
							break;
						case 'slug':
							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_slug', pmxe_filter($entry->post_name, $fieldSnippet), $entry->ID));
							break;
						case 'excerpt':
							$val = apply_filters('pmxe_post_excerpt', pmxe_filter($entry->post_excerpt, $fieldSnippet), $entry->ID);
							wp_all_export_write_article($article, $element_name, ($preview) ? trim(preg_replace('~[\r\n]+~', ' ', htmlspecialchars($val))) : $val);
							break;
						case 'cf':
							if (!empty($fieldValue)) {

								// Clear the meta values from the previous iteration.
								$cur_meta_values = null;

								$val = "";

								// Retrieve meta from *wc_orders_meta table if order export and HPOS enabled. Ensure a valid order
								// object is returned.
								if ( $pType === 'shop_order' && PMXE_Plugin::hposEnabled() && $order = wc_get_order( $entry->order_id ?? $entry->ID )) {

									$metaName = 'get' . $fieldValue;

									if(method_exists('WC_Order', $metaName)) {
										$cur_meta_values = $order->$metaName();
									}else {
										$cur_meta_values = $order->get_meta( $fieldValue );
									}
								}

								// Retrieve meta from *postmeta table if no value was found above.
								if ( empty( $cur_meta_values ) ) {
									$cur_meta_values = get_post_meta( $entry->order_id ?? $entry->ID, $fieldValue );
								}

								if (!empty($cur_meta_values) and is_array($cur_meta_values)) {
									foreach ($cur_meta_values as $key => $cur_meta_value) {
										if (empty($val)) {
											$val = maybe_serialize($cur_meta_value);
										} else {
											$val = $val . $implode_delimiter . maybe_serialize($cur_meta_value);
										}
									}
									$val = pmxe_filter($val, $fieldSnippet);
									wp_all_export_write_article($article, $element_name, ($preview) ? trim(preg_replace('~[\r\n]+~', ' ', htmlspecialchars($val))) : $val);
								}

								if (empty($cur_meta_values)) {
									if (empty($article[$element_name])) {

										wp_all_export_write_article($article, $element_name, apply_filters('pmxe_custom_field', pmxe_filter('', $fieldSnippet), $fieldValue, $entry->ID));

                                    }
								}

								/** TODO: Refactor logic */
								/** EDGE CASE BUT CAN HAPPEN IN SOME CASES */
								if(!is_array($cur_meta_values) && !empty($cur_meta_values)) {
                                    wp_all_export_write_article($article, $element_name, apply_filters('pmxe_custom_field', pmxe_filter($cur_meta_values, $fieldSnippet), $fieldValue, $entry->ID));
                                }
							}
							break;

						case 'acf':

						    if(XmlExportEngine::get_addons_service()->isAcfAddonActive()) {
                                if (!empty($fieldLabel) and class_exists('acf')) {

                                    $blocks = parse_blocks($entry->post_content);

                                    global $acf;

                                    $field_options = unserialize($fieldOptions);

                                    if (!$is_xml_export) {
                                        switch ($field_options['type']) {
                                            case 'textarea':
                                            case 'oembed':
                                            case 'wysiwyg':
                                            case 'wp_wysiwyg':
                                            case 'date_time_picker':
                                            case 'date_picker':

                                                $field_value = get_field($fieldLabel, $entry->ID, false);

                                                break;

                                            default:

                                                $field_value = get_field($fieldLabel, $entry->ID);

                                                break;
                                        }
                                    } else {
                                        $field_value = get_field($fieldLabel, $entry->ID);
                                    }

                                    if ($blocks) {
                                        foreach ($blocks as $block) {
                                            if ( isset($block['attrs']['id']) && $block['attrs']['id'] == $field_options['key'] ) {
                                                $field_value = $block['data'][$fieldLabel];
                                            }
                                        }
                                    }

									// Explicitly allow a value of 0 regardless if it's int or string.
                                    if (!$field_value && 0 !== $field_value && '0' !== $field_value) {
                                        if (XmlExportEngine::get_addons_service()->isAcfAddonActive()) {
                                            $field_value = XmlExportACF::get_acf_block_value($entry, $field_options['name']);
                                        }
                                    }


                                    if (XmlExportEngine::get_addons_service()->isAcfAddonActive()) {
                                        XmlExportACF::export_acf_field(
                                            $field_value,
                                            $exportOptions,
                                            $ID,
                                            $entry->ID,
                                            $article,
                                            $xmlWriter,
                                            $acfs,
                                            $element_name,
                                            $element_name_ns,
                                            $fieldSnippet,
                                            $field_options['group_id'],
                                            $preview
                                        );
                                    }
                                }
                            }

							break;

						case 'woo':

						if ($is_xml_export) {
						    if(XmlExportEngine::get_addons_service()->isWooCommerceAddonActive() || XmlExportEngine::get_addons_service()->isWooCommerceProductAddonActive()) {
                                XmlExportEngine::$woo_export->export_xml($xmlWriter, $entry, $exportOptions, $ID);
                            }
                        } else {
                            if(XmlExportEngine::get_addons_service()->isWooCommerceAddonActive() || XmlExportEngine::get_addons_service()->isWooCommerceProductAddonActive()) {
                                XmlExportEngine::$woo_export->export_csv($article, $woo, $entry, $exportOptions, $ID);
                            }
						}

							break;

						case 'woo_order':

							if ($is_xml_export) {
                                if(XmlExportEngine::get_addons_service()->isWooCommerceAddonActive() || XmlExportEngine::get_addons_service()->isWooCommerceOrderAddonActive()) {
                                    XmlExportEngine::$woo_order_export->export_xml($xmlWriter, $entry, $exportOptions, $ID, $preview);
                                }
							} else {
                                if(XmlExportEngine::get_addons_service()->isWooCommerceAddonActive() || XmlExportEngine::get_addons_service()->isWooCommerceOrderAddonActive()) {
                                    XmlExportEngine::$woo_order_export->export_csv($article, $woo_order, $entry, $exportOptions, $ID, $preview);
                                }
							}

							break;

						case 'attr':

							if (!empty($fieldValue)) {
								if ($entry->post_type != 'product_variation') {
									$txes_list = get_the_terms($entry->ID, $fieldValue);
									if (!is_wp_error($txes_list) and !empty($txes_list)) {
										$attr_new = array();
										foreach ($txes_list as $t) {
											$attr_new[] = $t->name;
										}
										wp_all_export_write_article($article, $element_name, apply_filters('pmxe_woo_attribute', pmxe_filter(implode($implode_delimiter, $attr_new), $fieldSnippet), $entry->ID, $fieldValue));
									} else {
										// Write empty value (so the functions are still applied)
										wp_all_export_write_article($article, $element_name, pmxe_filter('', $fieldSnippet));
									}
								} else {
									$attribute_pa = apply_filters('pmxe_woo_attribute', get_post_meta($entry->ID, 'attribute_' . strtolower(urlencode($fieldValue)), true), $entry->ID, $fieldValue);
									$term = get_term_by('slug', $attribute_pa, $fieldValue);
									if ($term and !is_wp_error($term)) {
										$attribute_pa = pmxe_filter($term->name, $fieldSnippet);
									} else {
										// Write empty value (so the functions are still applied)
										$attribute_pa = pmxe_filter('', $fieldSnippet);
									}

									wp_all_export_write_article($article, $element_name, $attribute_pa);
								}

								// if ( ! in_array($element_name, $attributes)) $attributes[] = $element_name;
							}
							break;

						case 'cats':

						    if( $fieldLabel == 'product_visibility' ) {
                                $product = wc_get_product( $entry->ID );
                                if($product) {
                                    $value = $product->get_catalog_visibility();
                                    $value = apply_filters('pmxe_woo_field', $value, $element_name, $entry->ID);
                                    wp_all_export_write_article($article, $element_name, $value);
                                }
                            } else {
                                if (!empty($fieldValue)) {

                                    // get categories from parent product in case when variation exported
                                    if ($fieldLabel != 'product_shipping_class') {
                                        // get categories from parent product in case when variation exported
                                        $entry_id = ($entry->post_type == 'product_variation') ? $entry->post_parent : $entry->ID;
                                    } else {
                                        $entry_id = $entry->ID;
                                    }

                                    // switch to post language if WPML installed
                                    if (class_exists('SitePress')) {
                                        $post_type = get_post_type($entry_id);
                                        $post_type = apply_filters('wpml_element_type', $post_type);
                                        $post_language_details = apply_filters('wpml_element_language_details',
                                            null,
                                            array(
                                                'element_id' => $entry_id,
                                                'element_type' => $post_type
                                            )
                                        );
                                        $language_code = empty($post_language_details->language_code) ? '' : $post_language_details->language_code;
                                        $current_language = apply_filters('wpml_current_language', null);
                                        do_action('wpml_switch_language', $language_code);
                                    }

                                    $txes_list = get_the_terms($entry_id, $fieldValue);

                                    $hierarchy_groups = array();

                                    if (!is_wp_error($txes_list) and !empty($txes_list)) {
                                        $txes_ids = array();

                                        foreach ($txes_list as $t) {
                                            $txes_ids[] = $t->term_id;
                                        }

                                        foreach ($txes_list as $t) {
                                            if (wp_all_export_check_children_assign($t->term_id, $fieldValue, $txes_ids)) {
                                                $ancestors = get_ancestors($t->term_id, $fieldValue);
                                                if (count($ancestors) > 0) {
                                                    $hierarchy_group = array();
                                                    for ($i = count($ancestors) - 1; $i >= 0; $i--) {
                                                        $term = get_term_by('id', $ancestors[$i], $fieldValue);
                                                        if ($term) {
                                                            $hierarchy_group[] = $term->name;
                                                        }
                                                    }
                                                    $hierarchy_group[] = $t->name;

                                                    if(isset(XmlExportEngine::$exportOptions['xml_template_type']) && XmlExportEngine::$exportOptions['xml_template_type'] == \XmlExportEngine::EXPORT_TYPE_GOOLE_MERCHANTS) {
                                                        $hierarchy_groups[] = implode(' > ', $hierarchy_group);
                                                    } else {
                                                        $hierarchy_groups[] = implode('>', $hierarchy_group);
                                                    }
                                                } else {
                                                    $hierarchy_groups[] = $t->name;
                                                }
                                            }
                                        }

                                        // if ( empty($hierarchy_groups) ) $hierarchy_groups = '';

                                    }

                                    wp_all_export_write_article($article, $element_name, apply_filters('pmxe_post_taxonomy', pmxe_filter(implode($implode_delimiter, $hierarchy_groups), $fieldSnippet), $entry->ID));

                                    // if ( ! in_array($element_name, $taxes)) $taxes[] = $element_name;

                                    if ($fieldLabel == 'product_type') {

                                        if ($entry->post_type == 'product_variation') $article[$element_name] = 'variable';

                                    }

                                    // swith to current language if WPML installed
                                    if (class_exists('SitePress')) {
                                        do_action('wpml_switch_language', $current_language);
                                    }
                                }
                            }
							break;

						case 'sql':

							if (!empty($fieldSql)) {
								global $wpdb;
								$val = $wpdb->get_var($wpdb->prepare(stripcslashes(str_replace("%%ID%%", "%d", $fieldSql)), $entry->ID));
								if (!empty($fieldPhp) and !empty($fieldCode)) {
									// if shortcode defined
									if (strpos($fieldCode, '[') === 0) {
										$val = do_shortcode(str_replace("%%VALUE%%", $val, $fieldCode));
									} else {
										$val = eval('return ' . stripcslashes(str_replace("%%VALUE%%", $val, $fieldCode)) . ';');
									}
								}
								wp_all_export_write_article($article, $element_name, apply_filters('pmxe_sql_field', $val, $element_name, $entry->ID));
							}
							break;

						case 'wpml_trid':

							$post_type = get_post_type($entry->ID);

							$post_type = apply_filters('wpml_element_type', $post_type);

							$post_language_details = apply_filters('wpml_element_language_details',
								null,
								array(
									'element_id' => $entry->ID,
									'element_type' => $post_type
								)
							);

							$trid = empty($post_language_details->trid) ? '' : $post_language_details->trid;

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_trid_field', $trid, $element_name, $entry->ID));

							break;

						case 'wpml_lang':

							$post_type = get_post_type($entry->ID);

							$post_type = apply_filters('wpml_element_type', $post_type);

							$post_language_details = apply_filters('wpml_element_language_details',
								null,
								array(
									'element_id' => $entry->ID,
									'element_type' => $post_type
								)
							);

							$language_code = empty($post_language_details->language_code) ? '' : $post_language_details->language_code;

							wp_all_export_write_article($article, $element_name, apply_filters('pmxe_trid_field', $language_code, $element_name, $entry->ID));

							break;

						default:
							# code...
							break;
					}
				}
				if ($is_xml_export and isset($article[$element_name])) {
					$element_name_in_file = XmlCsvExport::_get_valid_header_name($element_name);

					$xmlWriter = apply_filters('wp_all_export_add_before_element', $xmlWriter, $element_name_in_file, XmlExportEngine::$exportID, $entry->ID);

					$xmlWriter->beginElement($element_name_ns, $element_name_in_file, null);
					$xmlWriter->writeData($article[$element_name], $element_name_in_file);
					$xmlWriter->closeElement();

					$xmlWriter = apply_filters('wp_all_export_add_after_element', $xmlWriter, $element_name_in_file, XmlExportEngine::$exportID, $entry->ID);
				}
			}
		}

		return $article;
	}	

	public static function prepare_import_template( $exportOptions, &$templateOptions, &$cf_list, &$attr_list, &$taxs_list, $element_name, $ID)
	{
		$options = $exportOptions;

		$element_type = $options['cc_type'][$ID];

		$is_xml_template = $options['export_to'] == 'xml';

		$implode_delimiter = XmlExportEngine::$implode;

        $field_tpl_key = (preg_match('/^[0-9]/', $element_name)) ? 'el_' . $element_name : $element_name;
		switch ($element_type) 
		{
			case 'id':
				// Ensure that combined fields aren't used as the unique_key.
				if( isset($options['cc_combine_multiple_fields'][$ID]) && $options['cc_combine_multiple_fields'][$ID] == 1){
					break;
				}
                if ($field_tpl_key == 'ID' && !$ID && $exportOptions['export_to'] == 'csv' && $exportOptions['export_to_sheet'] != 'csv'){
                    $field_tpl_key = 'id';
                }
				$templateOptions['unique_key'] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['tmp_unique_key'] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['single_product_id'] = '{'. $field_tpl_key .'[1]}';
				break;
			case 'title':
                $templateOptions[$element_type] = '{'. $field_tpl_key .'[1]}';
                $templateOptions['is_update_' . $options['cc_type'][$ID]] = 1;
                $templateOptions['single_product_id_first_is_variation'] = '{'. $field_tpl_key .'[1]}';
                break;
            case 'content':
			case 'author':
                $templateOptions[$element_type] = '{'. $field_tpl_key .'[1]}';
                $templateOptions['is_update_' . $options['cc_type'][$ID]] = 1;
			    break;
			case 'slug':
				$templateOptions['post_slug'] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['is_update_' . $options['cc_type'][$ID]] = 1;
				break;
            case 'parent_slug':
                $templateOptions['is_multiple_page_parent'] = 'no';
                $templateOptions['single_page_parent'] = '{' . $field_tpl_key . '[1]}';
                $templateOptions['is_update_parent'] = 1;
                break;
			case 'parent':
                $templateOptions['single_product_parent_id'] = '{' . $field_tpl_key . '[1]}';
                $templateOptions['single_product_id_first_is_parent_id'] = '{' . $field_tpl_key . '[1]}';
				break;
			case 'excerpt':
				$templateOptions['post_excerpt'] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['is_update_' . $options['cc_type'][$ID]] = 1;
				break;
			case 'status':
				$templateOptions['status_xpath'] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['is_update_status'] = 1;
				break;
			case 'date':
				$templateOptions[$element_type] = '{'. $field_tpl_key .'[1]}';
				$templateOptions['is_update_dates'] = 1;
				break;
            case 'order':
                $templateOptions[$element_type] = '{'. $field_tpl_key .'[1]}';
                $templateOptions['is_update_menu_order'] = 1;
                $templateOptions['single_product_menu_order'] = '{'. $field_tpl_key .'[1]}';
                break;
			case 'comment_status':
				$templateOptions['is_update_comment_status'] = 1;
				$templateOptions['is_product_enable_reviews'] = 'xpath';
				$templateOptions['single_product_enable_reviews'] = '[str_replace("open","yes",{' . $field_tpl_key . '[1]})]';
				break;
			case 'post_type':

				if ( empty($options['cpt']) )
				{
					$templateOptions['is_override_post_type'] = 1;	
					$templateOptions['post_type_xpath'] = '{'. $field_tpl_key .'[1]}';
				}
				break;

			case 'cf':
				
				if ( ! empty($options['cc_value'][$ID]) )
				{																																
					$exclude_cf = array('_thumbnail_id', 'cf_review_verified', 'rating');

					if (strpos($options['cc_value'][$ID], 'attribute_') === 0 and ! in_array($options['cc_value'][$ID], $attr_list))
					{
						$templateOptions['attribute_name'][] = str_replace('attribute_', '', $options['cc_value'][$ID]);
						$templateOptions['attribute_value'][] = '{'. $field_tpl_key .'[1]}';
						$templateOptions['in_variations'][] = "1";
						$templateOptions['is_visible'][] = "1";
						$templateOptions['is_taxonomy'][] = "0";
						$templateOptions['create_taxonomy_in_not_exists'][] = "0";	
						$attr_list[] = $options['cc_value'][$ID];
					}
					elseif ( ! in_array($options['cc_value'][$ID], $cf_list) and ! in_array($options['cc_value'][$ID], $exclude_cf) )
					{
						$cf_list[] = $options['cc_value'][$ID];
						
						$templateOptions['custom_name'][] = $options['cc_value'][$ID];								
						$templateOptions['custom_value'][] = '{'. $field_tpl_key .'[1]}';
						$templateOptions['custom_format'][] = 0;
					} 						
				}

				break;								

			case 'attr':				

				if ( ! empty($options['cc_value'][$ID]) and ! in_array($options['cc_value'][$ID], $attr_list) ) 
				{
					$templateOptions['attribute_name'][] = str_replace('pa_', '', $options['cc_value'][$ID]);
					$templateOptions['attribute_value'][] = '{'. $field_tpl_key .'[1]}';
					$templateOptions['in_variations'][] = "1";
					$templateOptions['is_visible'][] = "1";
					$templateOptions['is_taxonomy'][] = "1";
					$templateOptions['create_taxonomy_in_not_exists'][] = "1";	
					$attr_list[] = $options['cc_value'][$ID];
				}								
				
				break;
			case 'cats':
				if ( ! empty($options['cc_value'][$ID]) )
				{																															
					switch ($options['cc_label'][$ID]) 
					{
						case 'product_type':
							$templateOptions['is_multiple_product_type'] = 'no';
							$templateOptions['single_product_type'] = '{'. $field_tpl_key .'[1]}';
							break;
						case 'product_shipping_class':
							$templateOptions['is_multiple_product_shipping_class'] = 'no';
							$templateOptions['single_product_shipping_class'] = '{'. $field_tpl_key .'[1]}';
							break;
						default:
							$taxonomy = $options['cc_value'][$ID];											
							$templateOptions['tax_assing'][$taxonomy] = 1;

							if (is_taxonomy_hierarchical($taxonomy))
							{								
								$templateOptions['tax_logic'][$taxonomy] = 'hierarchical';
								$templateOptions['tax_hierarchical_logic_entire'][$taxonomy] = 1;
								$templateOptions['multiple_term_assing'][$taxonomy] = 1;
								$templateOptions['tax_hierarchical_delim'][$taxonomy] = '>';
								$templateOptions['is_tax_hierarchical_group_delim'][$taxonomy] = 1;
								$templateOptions['tax_hierarchical_group_delim'][$taxonomy] = $is_xml_template ? '|' : $implode_delimiter;
								$templateOptions['tax_hierarchical_xpath'][$taxonomy] = array('{'. $field_tpl_key .'[1]}');
							}
							else{
								$templateOptions['tax_logic'][$taxonomy] = 'multiple';
								$templateOptions['multiple_term_assing'][$taxonomy] = 1;
								$templateOptions['tax_multiple_xpath'][$taxonomy] = '{'. $field_tpl_key .'[1]}';
								$templateOptions['tax_multiple_delim'][$taxonomy] = $is_xml_template ? '|' : $implode_delimiter;
							}
							$taxs_list[] = $taxonomy;										
						break;
					}
				}
				break;
		}		
	}

	static function getUserdata($userId)
	{
		if(!isset(self::$userData[$userId])) {
			self::$userData[$userId] = get_userdata($userId);
		}
		return self::$userData[$userId];
	}
}
