From 769907d81290a1292dc81c8e3ac1644c550603f0 Mon Sep 17 00:00:00 2001
From: Dima Uryvskiy <uryvskiydima@gmail.com>
Date: Fri, 30 Sep 2022 17:50:15 +0300
Subject: [PATCH] Add generators in the ICML generation process

---
 CHANGELOG.md                                  |   6 +
 README.md                                     |   2 +-
 VERSION                                       |   2 +-
 composer.json                                 |   3 +-
 resources/pot/retailcrm-es_ES.pot             |   3 +
 resources/pot/retailcrm-ru_RU.pot             |   4 +
 .../class-wc-retailcrm-abstract-builder.php   |   3 +-
 .../class-wc-retailcrm-abstracts-address.php  |   3 +-
 .../class-wc-retailcrm-abstracts-data.php     |   3 +-
 .../class-wc-retailcrm-abstracts-settings.php |   3 +-
 .../api/class-wc-retailcrm-client-v5.php      |  23 +-
 .../api/class-wc-retailcrm-exception-curl.php |   3 +-
 .../api/class-wc-retailcrm-exception-json.php |   3 +-
 src/include/api/class-wc-retailcrm-proxy.php  |  22 +-
 .../api/class-wc-retailcrm-request.php        |  22 +-
 .../api/class-wc-retailcrm-response.php       |  12 +-
 src/include/class-wc-retailcrm-base.php       |  23 +-
 src/include/class-wc-retailcrm-customers.php  |  22 +-
 .../class-wc-retailcrm-daemon-collector.php   |  12 +-
 src/include/class-wc-retailcrm-ga.php         |  22 +-
 src/include/class-wc-retailcrm-history.php    |  23 +-
 src/include/class-wc-retailcrm-icml.php       | 562 +++++-------------
 .../class-wc-retailcrm-inventories.php        |  22 +-
 src/include/class-wc-retailcrm-orders.php     |  22 +-
 src/include/class-wc-retailcrm-plugin.php     |   9 +-
 src/include/class-wc-retailcrm-uploader.php   |  22 +-
 .../class-wc-retailcrm-customer-switcher.php  |   3 +-
 .../class-wc-retailcrm-history-assembler.php  |   3 +-
 .../components/class-wc-retailcrm-logger.php  |  21 +-
 .../class-wc-retailcrm-customer-address.php   |   3 +-
 ...c-retailcrm-customer-corporate-address.php |   3 +-
 ...class-wc-retailcrm-wc-customer-builder.php |   2 +-
 .../icml/class-wc-retailcrm-icml-writer.php   | 253 ++++++++
 .../class-wc-retailcrm-builder-interface.php  |   3 +-
 ...-wc-retailcrm-customer-switcher-result.php |   6 +-
 ...s-wc-retailcrm-customer-switcher-state.php |  10 +-
 .../class-wc-retailcrm-order-address.php      |   3 +-
 .../order/class-wc-retailcrm-order-item.php   |   2 +-
 .../class-wc-retailcrm-order-payment.php      |   2 +-
 .../order/class-wc-retailcrm-order.php        |   3 +-
 src/languages/retailcrm-es_ES.mo              | Bin 9947 -> 9983 bytes
 src/languages/retailcrm-ru_RU.mo              | Bin 12280 -> 12337 bytes
 src/readme.txt                                |  10 +-
 src/retailcrm.php                             |  13 +-
 src/uninstall.php                             |   2 +-
 .../test-wc-retailcrm-abstract-builder.php    |   3 +-
 .../test-wc-retailcrm-customer-address.php    |   3 +-
 ...c-retailcrm-customer-corporate-address.php |   3 +-
 .../test-wc-retailcrm-wc-customer-builder.php |   3 +-
 tests/datasets/data-base-retailcrm.php        |   2 +-
 tests/datasets/data-customers-retailcrm.php   |   2 +-
 tests/datasets/data-history-retailcrm.php     |   2 +-
 tests/datasets/data-inventories-retailcrm.php |   2 +-
 .../class-wc-retailcrm-log-handler-stdout.php |  12 +-
 .../class-wc-retailcrm-response-helper.php    |  12 +-
 .../class-wc-retailcrm-test-case-helper.php   |   2 +-
 ...-wc-retailcrm-customer-switcher-result.php |   3 +-
 ...t-wc-retailcrm-customer-switcher-state.php |   3 +-
 .../order/test-wc-retailcrm-order-address.php |   3 +-
 tests/order/test-wc-retailcrm-order-item.php  |   3 +-
 .../order/test-wc-retailcrm-order-payment.php |   3 +-
 tests/order/test-wc-retailcrm-order.php       |   3 +-
 tests/test-wc-retailcrm-base.php              |   2 +-
 tests/test-wc-retailcrm-customers.php         |   2 +-
 tests/test-wc-retailcrm-daemon-collector.php  |   3 +-
 tests/test-wc-retailcrm-ga.php                |   3 +-
 tests/test-wc-retailcrm-history.php           |   2 +-
 tests/test-wc-retailcrm-icml.php              |   3 +-
 tests/test-wc-retailcrm-inventories.php       |   2 +-
 tests/test-wc-retailcrm-orders.php            |   3 +-
 tests/test-wc-retailcrm-plugin.php            |   3 +-
 tests/test-wc-retailcrm-uploader.php          |   3 +-
 72 files changed, 672 insertions(+), 616 deletions(-)
 create mode 100644 src/include/icml/class-wc-retailcrm-icml-writer.php

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 496c79f..e5983d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 2022-09-30 4.5.0
+* Fix path for js scripts
+* Migrating to PHP 7.0.
+* Change logic work with ICML catalog: added streaming generation, added generators in the ICML generation process.
+* Change logic work with address
+
 ## 2022-09-05 4.4.9
 * Fix bug with product tax
 
diff --git a/README.md b/README.md
index 663d82d..2473833 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 [![Build Status](https://github.com/retailcrm/woocommerce-module/workflows/woo/badge.svg)](https://github.com/retailcrm/woocommerce-module/actions)
 [![Coverage](https://img.shields.io/codecov/c/gh/retailcrm/woocommerce-module/master.svg?logo=github)](https://codecov.io/gh/retailcrm/woocommerce-module)
 [![GitHub release](https://img.shields.io/github/release/retailcrm/woocommerce-module.svg?logo=codecov)](https://github.com/retailcrm/woocommerce-module/releases)
-[![PHP version](https://img.shields.io/badge/PHP->=5.4-blue.svg?logo=php)](https://php.net/)
+[![PHP version](https://img.shields.io/badge/PHP->=7.0-blue.svg?logo=php)](https://php.net/)
 
 Woocommerce-module
 ==================
diff --git a/VERSION b/VERSION
index e49188c..ae15394 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.4.9
\ No newline at end of file
+4.5.0
\ No newline at end of file
diff --git a/composer.json b/composer.json
index c287da6..afcdb46 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,8 @@
     ],
     "minimum-stability": "dev",
     "require": {
-      "ext-simplexml": "*"
+      "ext-simplexml": "*",
+      "ext-xmlwriter": "*"
     },
     "require-dev": {
         "ext-json": "*",
diff --git a/resources/pot/retailcrm-es_ES.pot b/resources/pot/retailcrm-es_ES.pot
index 36b5a15..dcab8f6 100644
--- a/resources/pot/retailcrm-es_ES.pot
+++ b/resources/pot/retailcrm-es_ES.pot
@@ -339,3 +339,6 @@ msgstr "Borrar"
 
 msgid "Cron tasks cleared"
 msgstr "Trabajos cron borrados"
+
+msgid "Untitled"
+msgstr "Intitulado"
\ No newline at end of file
diff --git a/resources/pot/retailcrm-ru_RU.pot b/resources/pot/retailcrm-ru_RU.pot
index b40b676..375680b 100644
--- a/resources/pot/retailcrm-ru_RU.pot
+++ b/resources/pot/retailcrm-ru_RU.pot
@@ -348,3 +348,7 @@ msgstr "Очистить"
 
 msgid "Cron tasks cleared"
 msgstr "Cron задачи очищены"
+
+msgid "Untitled"
+msgstr "Без названия"
+
diff --git a/src/include/abstracts/class-wc-retailcrm-abstract-builder.php b/src/include/abstracts/class-wc-retailcrm-abstract-builder.php
index 1c6ad5f..a3651e9 100644
--- a/src/include/abstracts/class-wc-retailcrm-abstract-builder.php
+++ b/src/include/abstracts/class-wc-retailcrm-abstract-builder.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Abstract_Builder - Builds data for CRM.
  *
diff --git a/src/include/abstracts/class-wc-retailcrm-abstracts-address.php b/src/include/abstracts/class-wc-retailcrm-abstracts-address.php
index 14099e4..f56b0aa 100644
--- a/src/include/abstracts/class-wc-retailcrm-abstracts-address.php
+++ b/src/include/abstracts/class-wc-retailcrm-abstracts-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Abstracts_Address - Builds data for addresses orders/customers.
  *
diff --git a/src/include/abstracts/class-wc-retailcrm-abstracts-data.php b/src/include/abstracts/class-wc-retailcrm-abstracts-data.php
index 67908a2..878d93c 100644
--- a/src/include/abstracts/class-wc-retailcrm-abstracts-data.php
+++ b/src/include/abstracts/class-wc-retailcrm-abstracts-data.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Abstracts_Data - Class manage different data.
  *
diff --git a/src/include/abstracts/class-wc-retailcrm-abstracts-settings.php b/src/include/abstracts/class-wc-retailcrm-abstracts-settings.php
index 865090d..841c92c 100644
--- a/src/include/abstracts/class-wc-retailcrm-abstracts-settings.php
+++ b/src/include/abstracts/class-wc-retailcrm-abstracts-settings.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Abstracts_Settings - Settings plugin Simla.
  *
diff --git a/src/include/api/class-wc-retailcrm-client-v5.php b/src/include/api/class-wc-retailcrm-client-v5.php
index e51aa18..a988b21 100644
--- a/src/include/api/class-wc-retailcrm-client-v5.php
+++ b/src/include/api/class-wc-retailcrm-client-v5.php
@@ -1,17 +1,5 @@
 <?php
 
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Client_V5 - Api Client V5 class.
- *
- * @category Integration
- * @package  WC_Retailcrm_Client
- * @author   RetailCRM <dev@retailcrm.ru>
- * @license  https://opensource.org/licenses/MIT MIT License
- * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
- */
-
 if (!class_exists('WC_Retailcrm_Request')) {
     include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-request.php'));
 }
@@ -20,6 +8,17 @@ if (!class_exists('WC_Retailcrm_Response')) {
     include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-response.php'));
 }
 
+/**
+ * PHP version 7.0
+ *
+ * Class WC_Retailcrm_Client_V5 - Api Client V5 class.
+ *
+ * @category Integration
+ * @package  WC_Retailcrm_Client
+ * @author   RetailCRM <dev@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
+ */
 class WC_Retailcrm_Client_V5
 {
     protected $client;
diff --git a/src/include/api/class-wc-retailcrm-exception-curl.php b/src/include/api/class-wc-retailcrm-exception-curl.php
index 9e53624..0117de4 100644
--- a/src/include/api/class-wc-retailcrm-exception-curl.php
+++ b/src/include/api/class-wc-retailcrm-exception-curl.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Exception_Curl.
  *
diff --git a/src/include/api/class-wc-retailcrm-exception-json.php b/src/include/api/class-wc-retailcrm-exception-json.php
index e74ae43..e941ee6 100644
--- a/src/include/api/class-wc-retailcrm-exception-json.php
+++ b/src/include/api/class-wc-retailcrm-exception-json.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Exception_Json.
  *
diff --git a/src/include/api/class-wc-retailcrm-proxy.php b/src/include/api/class-wc-retailcrm-proxy.php
index 3c35aef..8670f8e 100644
--- a/src/include/api/class-wc-retailcrm-proxy.php
+++ b/src/include/api/class-wc-retailcrm-proxy.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Proxy - RetailCRM Integration.
- *
- * @category Integration
- * @package  WC_Retailcrm_Proxy
- * @author   RetailCRM <dev@retailcrm.ru>
- * @license  https://opensource.org/licenses/MIT MIT License
- * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
- */
 
 if (!class_exists('WC_Retailcrm_Proxy')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Proxy - RetailCRM Integration.
+     *
+     * @category Integration
+     * @package  WC_Retailcrm_Proxy
+     * @author   RetailCRM <dev@retailcrm.ru>
+     * @license  https://opensource.org/licenses/MIT MIT License
+     * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
+     */
     class WC_Retailcrm_Proxy
     {
         protected $retailcrm;
diff --git a/src/include/api/class-wc-retailcrm-request.php b/src/include/api/class-wc-retailcrm-request.php
index 9fdb45b..82d14d3 100644
--- a/src/include/api/class-wc-retailcrm-request.php
+++ b/src/include/api/class-wc-retailcrm-request.php
@@ -1,15 +1,4 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Request - Request class.
- *
- * @category Integration
- * @package  WC_Retailcrm_Request
- * @author   RetailCRM <dev@retailcrm.ru>
- * @license  https://opensource.org/licenses/MIT MIT License
- * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
- */
 
 if (!class_exists('WC_Retailcrm_Exception_Curl')) {
     include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-exception-curl.php'));
@@ -19,6 +8,17 @@ if (!class_exists('WC_Retailcrm_Response')) {
     include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-response.php'));
 }
 
+/**
+ * PHP version 7.0
+ *
+ * Class WC_Retailcrm_Request - Request class.
+ *
+ * @category Integration
+ * @package  WC_Retailcrm_Request
+ * @author   RetailCRM <dev@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
+ */
 class WC_Retailcrm_Request
 {
     const METHOD_GET = 'GET';
diff --git a/src/include/api/class-wc-retailcrm-response.php b/src/include/api/class-wc-retailcrm-response.php
index 6b2576f..48e4c9a 100644
--- a/src/include/api/class-wc-retailcrm-response.php
+++ b/src/include/api/class-wc-retailcrm-response.php
@@ -1,6 +1,11 @@
 <?php
+
+if (!class_exists('WC_Retailcrm_Exception_Json')) {
+    include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-exception-json.php'));
+}
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Response -  Response class.
  *
@@ -10,11 +15,6 @@
  * @license  https://opensource.org/licenses/MIT MIT License
  * @link     http://retailcrm.ru/docs/Developers/ApiVersion5
  */
-
-if (!class_exists('WC_Retailcrm_Exception_Json')) {
-    include_once(WC_Integration_Retailcrm::checkCustomFile('include/api/class-wc-retailcrm-exception-json.php'));
-}
-
 class WC_Retailcrm_Response implements \ArrayAccess
 {
     // HTTP response status code
diff --git a/src/include/class-wc-retailcrm-base.php b/src/include/class-wc-retailcrm-base.php
index 3140893..d3b0553 100644
--- a/src/include/class-wc-retailcrm-base.php
+++ b/src/include/class-wc-retailcrm-base.php
@@ -1,22 +1,21 @@
 <?php
 
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Base - Main settings plugin.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
-
 if (!class_exists('WC_Retailcrm_Base')) {
     if (!class_exists('WC_Retailcrm_Abstracts_Settings')) {
         include_once(WC_Integration_Retailcrm::checkCustomFile('include/abstracts/class-wc-retailcrm-abstracts-settings.php'));
     }
 
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Base - Main settings plugin.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Base extends WC_Retailcrm_Abstracts_Settings
     {
         /** @var WC_Retailcrm_Proxy|WC_Retailcrm_Client_V5|bool */
diff --git a/src/include/class-wc-retailcrm-customers.php b/src/include/class-wc-retailcrm-customers.php
index f0a4211..c6c34a3 100644
--- a/src/include/class-wc-retailcrm-customers.php
+++ b/src/include/class-wc-retailcrm-customers.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Customers - Allows transfer data customers with CMS.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (!class_exists('WC_Retailcrm_Customers')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Customers - Allows transfer data customers with CMS.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Customers
     {
         /** @var bool | WC_Retailcrm_Proxy | \WC_Retailcrm_Client_V5 */
diff --git a/src/include/class-wc-retailcrm-daemon-collector.php b/src/include/class-wc-retailcrm-daemon-collector.php
index cca9b53..670c5a3 100644
--- a/src/include/class-wc-retailcrm-daemon-collector.php
+++ b/src/include/class-wc-retailcrm-daemon-collector.php
@@ -1,6 +1,11 @@
 <?php
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Daemon_Collector - Integration with Daemon Collector.
  *
@@ -10,11 +15,6 @@
  * @link     http://retailcrm.ru
  * @see      http://help.retailcrm.ru
  */
-
-if (!defined('ABSPATH')) {
-    exit;
-}
-
 class WC_Retailcrm_Daemon_Collector {
     /** @var self $instance */
     private static $instance;
diff --git a/src/include/class-wc-retailcrm-ga.php b/src/include/class-wc-retailcrm-ga.php
index edb0e47..53c9848 100644
--- a/src/include/class-wc-retailcrm-ga.php
+++ b/src/include/class-wc-retailcrm-ga.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Google_Analytics - Integration with Google Analytics.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (!class_exists('WC_Retailcrm_Google_Analytics')) {
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Google_Analytics - Integration with Google Analytics.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Google_Analytics {
         private static $instance;
         private $options;
diff --git a/src/include/class-wc-retailcrm-history.php b/src/include/class-wc-retailcrm-history.php
index 0157a86..96cc2e9 100644
--- a/src/include/class-wc-retailcrm-history.php
+++ b/src/include/class-wc-retailcrm-history.php
@@ -1,18 +1,17 @@
 <?php
 
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_History - Allows transfer data orders/customers with CRM.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
-
 if (!class_exists('WC_Retailcrm_History')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_History - Allows transfer data orders/customers with CRM.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_History
     {
         const PAGE_LIMIT = 25;
diff --git a/src/include/class-wc-retailcrm-icml.php b/src/include/class-wc-retailcrm-icml.php
index 4dbbc8a..31d486a 100644
--- a/src/include/class-wc-retailcrm-icml.php
+++ b/src/include/class-wc-retailcrm-icml.php
@@ -1,25 +1,20 @@
 <?php
 
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Icml - Generate ICML file (catalog).
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
-
 if (!class_exists('WC_Retailcrm_Icml')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Icml - Generate ICML file (catalog).
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Icml
     {
-        protected $shop;
-        protected $file;
-        protected $tmpFile;
-
-        protected $properties = [
+        const OFFER_PROPERTIES = [
             'name',
             'productName',
             'price',
@@ -31,19 +26,11 @@ if (!class_exists('WC_Retailcrm_Icml')) :
             'productActivity'
         ];
 
-        protected $xml;
-
-        /** @var SimpleXMLElement $categories */
-        protected $categories;
-
-        /** @var SimpleXMLElement $categories */
-        protected $offers;
-
-        protected $chunk = 500;
-        protected $fileLifeTime = 3600;
-
-        /** @var array */
+        protected $shop;
+        protected $file;
+        protected $tmpFile;
         protected $settings;
+        protected $icmlWriter;
 
         /**
          * WC_Retailcrm_Icml constructor.
@@ -51,410 +38,125 @@ if (!class_exists('WC_Retailcrm_Icml')) :
          */
         public function __construct()
         {
-            $this->settings = get_option(WC_Retailcrm_Base::$option_key);
-            $this->shop = get_bloginfo('name');
-            $this->file = ABSPATH . 'simla.xml';
-            $this->tmpFile = sprintf('%s.tmp', $this->file);
+            $this->shop       = get_bloginfo('name');
+            $this->file       = ABSPATH . 'simla.xml';
+            $this->tmpFile    = sprintf('%s.tmp', $this->file);
+            $this->settings   = get_option(WC_Retailcrm_Base::$option_key);
+            $this->icmlWriter = new WC_Retailcrm_Icml_Writer($this->tmpFile);
         }
 
         /**
-         * Generate file
+         * Generate ICML catalog.
          */
         public function generate()
         {
-            $categories = $this->get_wc_categories_taxonomies();
+            $this->icmlWriter->writeHead($this->shop);
 
-            if (file_exists($this->tmpFile)) {
-                if (filectime($this->tmpFile) + $this->fileLifeTime < time()) {
-                    unlink($this->tmpFile);
-                    $this->writeHead();
-                }
-            } else {
-                $this->writeHead();
+            $categories = $this->prepareCategories();
+
+            if (empty($categories)) {
+                writeBaseLogs('Can`t get categories!');
+                return;
             }
 
-            try {
-                if (!empty($categories)) {
-                    $this->writeCategories($categories);
-                    unset($categories);
-                }
+            $this->icmlWriter->writeCategories($categories);
 
-                $status_args = $this->checkPostStatuses();
-                $this->get_wc_products_taxonomies($status_args);
+            $offers = $this->prepareOffers();
 
-                $dom = dom_import_simplexml(simplexml_load_file($this->tmpFile))->ownerDocument;
-
-                $dom->formatOutput = true;
-
-                $formatted = $dom->saveXML();
-
-                unset($dom, $this->xml);
-
-                file_put_contents($this->tmpFile, $formatted);
-                rename($this->tmpFile, $this->file);
-            } catch (Exception $e) {
-                unlink($this->tmpFile);
-            }
-        }
-
-        /**
-         * Load tmp data
-         *
-         * @return \SimpleXMLElement
-         */
-        private function loadXml()
-        {
-            return new SimpleXMLElement(
-                $this->tmpFile,
-                LIBXML_NOENT | LIBXML_NOCDATA | LIBXML_COMPACT | LIBXML_PARSEHUGE,
-                true
-            );
-        }
-
-        /**
-         * Generate xml header
-         */
-        private function writeHead()
-        {
-            $string = sprintf(
-                '<?xml version="1.0" encoding="UTF-8"?><yml_catalog date="%s"><shop><name>%s</name><categories/><offers/></shop></yml_catalog>',
-                current_time('Y-m-d H:i:s'),
-                html_entity_decode($this->shop)
-            );
-
-            file_put_contents($this->tmpFile, $string, LOCK_EX);
-        }
-
-        /**
-         * Write categories in file
-         *
-         * @param $categories
-         */
-        private function writeCategories($categories)
-        {
-            $chunkCategories = array_chunk($categories, $this->chunk);
-            foreach ($chunkCategories as $categories) {
-                $this->xml = $this->loadXml();
-
-                $this->categories = $this->xml->shop->categories;
-                $this->addCategories($categories);
-
-                $this->xml->asXML($this->tmpFile);
+            if (empty($offers)) {
+                writeBaseLogs('Can`t get offers!');
+                return;
             }
 
-            unset($this->categories);
+            $this->icmlWriter->writeOffers($offers);
+
+            $this->icmlWriter->writeEnd();
+            $this->icmlWriter->formatXml($this->tmpFile);
+
+            rename($this->tmpFile, $this->file);
         }
 
         /**
-         * Write products in file
-         *
-         * @param $offers
-         */
-        private function writeOffers($offers)
-        {
-            $chunkOffers = array_chunk($offers, $this->chunk);
-            foreach ($chunkOffers as $offers) {
-                $this->xml = $this->loadXml();
-
-                $this->offers = $this->xml->shop->offers;
-                $this->addOffers($offers);
-
-                $this->xml->asXML($this->tmpFile);
-            }
-
-            unset($this->offers);
-        }
-
-        /**
-         * Add categories
-         *
-         * @param $categories
-         */
-        private function addCategories($categories)
-        {
-            $categories = self::filterRecursive($categories);
-
-            foreach ($categories as $category) {
-                if (!array_key_exists('name', $category) || !array_key_exists('id', $category)) {
-                    continue;
-                }
-
-                /** @var SimpleXMLElement $e */
-                /** @var SimpleXMLElement $cat */
-
-                $cat = $this->categories;
-                $e = $cat->addChild('category');
-
-                $e->addAttribute('id', $category['id']);
-
-                if (array_key_exists('parentId', $category) && $category['parentId'] > 0) {
-                    $e->addAttribute('parentId', $category['parentId']);
-                }
-
-                $e->addChild('name', $category['name']);
-
-                if (array_key_exists('picture', $category)) {
-                    $e->addChild('picture', $category['picture']);
-                }
-            }
-        }
-
-        /**
-         * Add offers
-         *
-         * @param $offers
-         */
-        private function addOffers($offers)
-        {
-            $offers = self::filterRecursive($offers);
-
-            foreach ($offers as $key => $offer) {
-                if (!array_key_exists('id', $offer)) {
-                    continue;
-                }
-
-                $e = $this->offers->addChild('offer');
-
-                $e->addAttribute('id', $offer['id']);
-
-                if (!array_key_exists('productId', $offer) || empty($offer['productId'])) {
-                    $offer['productId'] = $offer['id'];
-                }
-                $e->addAttribute('productId', $offer['productId']);
-
-                if (!empty($offer['quantity'])) {
-                    $e->addAttribute('quantity', (int) $offer['quantity']);
-                } else {
-                    $e->addAttribute('quantity', 0);
-                }
-
-                if (isset($offer['categoryId']) && $offer['categoryId']) {
-                    if (is_array($offer['categoryId'])) {
-                        foreach ($offer['categoryId'] as $categoryId) {
-                            $e->addChild('categoryId', $categoryId);
-                        }
-                    } else {
-                        $e->addChild('categoryId', $offer['categoryId']);
-                    }
-                }
-
-                if (!array_key_exists('name', $offer) || empty($offer['name'])) {
-                    $offer['name'] = 'Без названия';
-                }
-
-                if (!array_key_exists('productName', $offer) || empty($offer['productName'])) {
-                    $offer['productName'] = $offer['name'];
-                }
-
-                if (array_key_exists('picture', $offer) && !empty($offer['picture'])) {
-                    foreach ($offer['picture'] as $urlImage) {
-                        $e->addChild('picture', $urlImage);
-                    }
-                }
-
-                unset($offer['id'], $offer['productId'], $offer['categoryId'], $offer['quantity'], $offer['picture']);
-                array_walk($offer, [$this, 'setOffersProperties'], $e);
-
-                if (array_key_exists('params', $offer) && !empty($offer['params'])) {
-                    array_walk($offer['params'], [$this, 'setOffersParams'], $e);
-                }
-
-                if (array_key_exists('dimensions', $offer)) {
-                    $e->addChild('dimensions', $offer['dimensions']);
-                }
-
-                if (array_key_exists('weight', $offer)) {
-                    $e->addChild('weight', $offer['weight']);
-                }
-
-                if (array_key_exists('tax', $offer)) {
-                    $e->addChild('vatRate', $offer['tax']);
-                }
-
-                unset($offers[$key]);
-            }
-        }
-
-        /**
-         * Set offer properties
-         *
-         * @param $value
-         * @param $key
-         * @param $e
-         */
-        private function setOffersProperties($value, $key, &$e)
-        {
-            if (in_array($key, $this->properties) && $key != 'params') {
-                /** @var SimpleXMLElement $e */
-                $e->addChild($key, htmlspecialchars($value));
-            }
-        }
-
-        /**
-         * Set offer params
-         *
-         * @param $value
-         * @param $key
-         * @param $e
-         */
-        private function setOffersParams($value, $key, &$e)
-        {
-            if (
-                array_key_exists('code', $value) &&
-                array_key_exists('name', $value) &&
-                array_key_exists('value', $value) &&
-                !empty($value['code']) &&
-                !empty($value['name']) &&
-                !empty($value['value'])
-            ) {
-                /** @var SimpleXMLElement $e */
-                $param = $e->addChild('param', htmlspecialchars($value['value']));
-                $param->addAttribute('code', $value['code']);
-                $param->addAttribute('name', substr(htmlspecialchars($value['name']), 0, 200));
-                unset($key);
-            }
-        }
-
-        /**
-         * Filter result array
-         *
-         * @param $haystack
-         *
-         * @return mixed
-         */
-        public static function filterRecursive($haystack)
-        {
-            foreach ($haystack as $key => $value) {
-                if (is_array($value)) {
-                    $haystack[$key] = self::filterRecursive($haystack[$key]);
-                }
-
-                if (
-                    is_null($haystack[$key])
-                    || $haystack[$key] === ''
-                    || (is_array($haystack[$key]) && count($haystack[$key]) == 0)
-                ) {
-                    unset($haystack[$key]);
-                } elseif (!is_array($value)) {
-                    $haystack[$key] = trim($value);
-                }
-            }
-
-            return $haystack;
-        }
-
-        /**
-         * Get WC products
+         * Prepare WC offers for write.
          *
          * @return void
          */
-        private function get_wc_products_taxonomies($status_args)
+        private function prepareOffers()
         {
-            if (!$status_args) {
-                $status_args = ['publish'];
+            $productStatuses = $this->getProductStatuses();
+
+            if (!$productStatuses) {
+                $productStatuses = ['publish'];
             }
 
-            $attribute_taxonomies = wc_get_attribute_taxonomies();
-            $product_attributes = [];
+            $page = 1;
+            $offerAttributes = $this->getOfferAttributes();
 
-            foreach ($attribute_taxonomies as $product_attribute) {
-                $attribute_id = wc_attribute_taxonomy_name_by_id(intval($product_attribute->attribute_id));
-                $product_attributes[$attribute_id] = $product_attribute->attribute_label;
-            }
+            do {
+                $products = wc_get_products(
+                    [
+                        'limit'    => 1000,
+                        'status'   => $productStatuses,
+                        'page'     => $page,
+                        'paginate' => true,
+                    ]
+                );
 
-            $full_product_list = [];
-
-            $products = wc_get_products(
-                [
-                    'limit' => -1,
-                    'status' => $status_args
-                ]
-            );
-
-            foreach ($products as $offer) {
-                $type = $offer->get_type();
-
-                if (strpos($type, 'variable') !== false || strpos($type, 'variation') !== false) {
-                    foreach ($offer->get_children() as $child_id) {
-                        $child_product = wc_get_product($child_id);
-                        if (!$child_product) {
-                            continue;
-                        }
-
-                        $this->setOffer($full_product_list, $product_attributes, $child_product, $offer);
-                    }
-                } else {
-                    $this->setOffer($full_product_list, $product_attributes, $offer);
+                if (empty($products)) {
+                    writeBaseLogs('Can`t get products!');
+                    return;
                 }
-            }
 
-            if (isset($full_product_list) && $full_product_list) {
-                $this->writeOffers($full_product_list);
-                unset($full_product_list);
-            }
+                foreach ($products->products as $offer) {
+                    $type = $offer->get_type();
+
+                    if (strpos($type, 'variable') !== false || strpos($type, 'variation') !== false) {
+                        foreach ($offer->get_children() as $childId) {
+                            $childProduct = wc_get_product($childId);
+
+                            if (!$childProduct) {
+                                continue;
+                            }
+
+                            yield $this->getOffer($offerAttributes, $childProduct, $offer);
+                        }
+                    } else {
+                        yield $this->getOffer($offerAttributes, $offer);
+                    }
+                }
+
+                $page++;
+            } while ($page <= $products->max_num_pages);
         }
 
         /**
-         * Get WC categories
+         * Get WC offer attributes.
          *
          * @return array
          */
-        private function get_wc_categories_taxonomies()
+        private function getOfferAttributes()
         {
-            $categories   = [];
-            $taxonomy     = 'product_cat';
-            $orderby      = 'parent';
-            $show_count   = 0;      // 1 for yes, 0 for no
-            $pad_counts   = 0;      // 1 for yes, 0 for no
-            $hierarchical = 1;      // 1 for yes, 0 for no
-            $title        = '';
-            $empty        = 0;
+            $offerAttributes   = [];
+            $attributeTaxonomies = wc_get_attribute_taxonomies();
 
-            $args = [
-                'taxonomy'     => $taxonomy,
-                'orderby'      => $orderby,
-                'show_count'   => $show_count,
-                'pad_counts'   => $pad_counts,
-                'hierarchical' => $hierarchical,
-                'title_li'     => $title,
-                'hide_empty'   => $empty
-            ];
-
-            $wcatTerms = get_categories($args);
-
-            foreach ($wcatTerms as $term) {
-                $category = [
-                    'id' => $term->term_id,
-                    'parentId' => $term->parent,
-                    'name' => $term->name
-                ];
-
-                $thumbnail_id = function_exists('get_term_meta')
-                    ? get_term_meta($term->term_id, 'thumbnail_id', true)
-                    : get_woocommerce_term_meta($term->term_id, 'thumbnail_id', true);
-                $picture = wp_get_attachment_url($thumbnail_id);
-
-                if ($picture) {
-                    $category['picture'] = $picture;
-                }
-
-                $categories[] = $category;
+            foreach ($attributeTaxonomies as $productAttribute) {
+                $attributeId = wc_attribute_taxonomy_name_by_id(intval($productAttribute->attribute_id));
+                $offerAttributes[$attributeId] = $productAttribute->attribute_label;
             }
 
-            return $categories;
+            return $offerAttributes;
         }
 
         /**
-         * Set offer for icml catalog
+         * Get offer for ICML catalog
          *
-         * @param array $full_product_list
-         * @param array $product_attributes
+         * @param array $productAttributes
          * @param WC_Product $product
          * @param bool | WC_Product_Variable $parent
          *
-         * @return void
+         * @return array
          */
-        private function setOffer(&$full_product_list, $product_attributes, $product, $parent = false)
+        private function getOffer(array $productAttributes, WC_Product $product, $parent = false)
         {
             $idImages = array_merge([$product->get_image_id()], $product->get_gallery_image_ids());
 
@@ -482,12 +184,12 @@ if (!class_exists('WC_Retailcrm_Icml')) :
             $params = [];
 
             if (!empty($attributes)) {
-                foreach ($attributes as $attribute_name => $attribute) {
-                    $attributeValue = $product->get_attribute($attribute_name);
+                foreach ($attributes as $attributeName => $attribute) {
+                    $attributeValue = $product->get_attribute($attributeName);
                     if ($attribute['is_visible'] == 1 && !empty($attributeValue)) {
                         $params[] = [
-                            'code' => $attribute_name,
-                            'name' => $product_attributes[$attribute_name],
+                            'code'  => $attributeName,
+                            'name'  => $productAttributes[$attributeName],
                             'value' => $attributeValue
                         ];
                     }
@@ -550,10 +252,10 @@ if (!class_exists('WC_Retailcrm_Icml')) :
             }
 
             if (isset($this->settings['product_description'])) {
-                $productDescription = $this->getDescription($product);
+                $productDescription = $this->getOfferDescription($product);
 
                 if (empty($productDescription) && $parent instanceof WC_Product_Variable) {
-                    $this->getDescription($parent);
+                    $this->getOfferDescription($parent);
                 }
 
                 if ($productDescription != '') {
@@ -572,43 +274,91 @@ if (!class_exists('WC_Retailcrm_Icml')) :
             );
 
             if (isset($productData)) {
-                $full_product_list[] = $productData;
+                return $productData;
             }
-
-            unset($productData);
         }
 
         /**
-         * Get product statuses
+         * Get product statuses.
          *
          * @return array
          */
-        private function checkPostStatuses()
+        private function getProductStatuses()
         {
-            $status_args = [];
+            $statuses = [];
 
             foreach (get_post_statuses() as $key => $value) {
                 if (isset($this->settings['p_' . $key]) && $this->settings['p_' . $key] == WC_Retailcrm_Base::YES) {
-                    $status_args[] = $key;
+                    $statuses[] = $key;
                 }
             }
 
-            return $status_args;
+            return $statuses;
         }
 
         /**
-         * Get product description
+         * Get offer description.
          *
          * @param WC_Product | WC_Product_Variable $product WC product.
          *
          * @return string
          */
-        private function getDescription($product)
+        private function getOfferDescription($product)
         {
             return $this->settings['product_description'] == 'full'
                 ? $product->get_description()
                 : $product->get_short_description();
         }
-    }
 
+        /**
+         * Prepare WC categories for write.
+         *
+         * @return array
+         */
+        private function prepareCategories()
+        {
+            $categories   = [];
+            $taxonomy     = 'product_cat';
+            $orderby      = 'parent';
+            $show_count   = 0;      // 1 for yes, 0 for no
+            $pad_counts   = 0;      // 1 for yes, 0 for no
+            $hierarchical = 1;      // 1 for yes, 0 for no
+            $title        = '';
+            $empty        = 0;
+
+            $args = [
+                'taxonomy'     => $taxonomy,
+                'orderby'      => $orderby,
+                'show_count'   => $show_count,
+                'pad_counts'   => $pad_counts,
+                'hierarchical' => $hierarchical,
+                'title_li'     => $title,
+                'hide_empty'   => $empty
+            ];
+
+            $wcTerms = get_categories($args);
+
+            foreach ($wcTerms as $term) {
+                $category = [
+                    'id' => $term->term_id,
+                    'parentId' => $term->parent,
+                    'name' => $term->name
+                ];
+
+                $thumbnailId = function_exists('get_term_meta')
+                    ? get_term_meta($term->term_id, 'thumbnail_id', true)
+                    : get_woocommerce_term_meta($term->term_id, 'thumbnail_id', true);
+
+                $picture = wp_get_attachment_url($thumbnailId);
+
+                if ($picture) {
+                    $category['picture'] = $picture;
+                }
+
+                $categories[] = $category;
+            }
+
+            return $categories;
+        }
+    }
 endif;
diff --git a/src/include/class-wc-retailcrm-inventories.php b/src/include/class-wc-retailcrm-inventories.php
index ccccc65..d526d96 100644
--- a/src/include/class-wc-retailcrm-inventories.php
+++ b/src/include/class-wc-retailcrm-inventories.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Inventories - Allows manage stocks.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (!class_exists('WC_Retailcrm_Inventories')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Inventories - Allows manage stocks.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Inventories
     {
         /** @var WC_Retailcrm_Client_V5 */
diff --git a/src/include/class-wc-retailcrm-orders.php b/src/include/class-wc-retailcrm-orders.php
index 6ee45b8..1977b9d 100644
--- a/src/include/class-wc-retailcrm-orders.php
+++ b/src/include/class-wc-retailcrm-orders.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Orders - Allows transfer data orders with CMS.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (!class_exists('WC_Retailcrm_Orders')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Orders - Allows transfer data orders with CMS.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Orders
     {
         /** @var bool|WC_Retailcrm_Proxy|WC_Retailcrm_Client_V5 */
diff --git a/src/include/class-wc-retailcrm-plugin.php b/src/include/class-wc-retailcrm-plugin.php
index d307268..1e9bdac 100644
--- a/src/include/class-wc-retailcrm-plugin.php
+++ b/src/include/class-wc-retailcrm-plugin.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Plugin - Internal plugin settings.
  *
@@ -79,7 +80,7 @@ class WC_Retailcrm_Plugin
     public function activate()
     {
         if (!class_exists('WC_Integration')) {
-            add_action('admin_notices', array(new WC_Integration_Retailcrm(), 'woocommerce_missing_notice'));
+            add_action('admin_notices', [new WC_Integration_Retailcrm(), 'woocommerce_missing_notice']);
 
             return;
         }
@@ -88,6 +89,10 @@ class WC_Retailcrm_Plugin
             require_once(WC_Integration_Retailcrm::checkCustomFile('include/class-wc-retailcrm-icml.php'));
         }
 
+        if (!class_exists('WC_Retailcrm_Icml_Writer')) {
+            require_once(WC_Integration_Retailcrm::checkCustomFile('include/icml/class-wc-retailcrm-icml-writer.php'));
+        }
+
         if (!class_exists('WC_Retailcrm_Base')) {
             require_once(WC_Integration_Retailcrm::checkCustomFile('include/class-wc-retailcrm-base.php'));
         }
diff --git a/src/include/class-wc-retailcrm-uploader.php b/src/include/class-wc-retailcrm-uploader.php
index 8e97d04..b4822be 100644
--- a/src/include/class-wc-retailcrm-uploader.php
+++ b/src/include/class-wc-retailcrm-uploader.php
@@ -1,17 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Uploader - Allows upload archival orders/customers in CRM.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (class_exists('WC_Retailcrm_Uploader') === false) {
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Uploader - Allows upload archival orders/customers in CRM.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
     class WC_Retailcrm_Uploader
     {
         const RETAILCRM_COUNT_OBJECT_UPLOAD = 50;
diff --git a/src/include/components/class-wc-retailcrm-customer-switcher.php b/src/include/components/class-wc-retailcrm-customer-switcher.php
index 3b4fe77..6afd466 100644
--- a/src/include/components/class-wc-retailcrm-customer-switcher.php
+++ b/src/include/components/class-wc-retailcrm-customer-switcher.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Switcher - This component provides builder-like interface in order to make it easier to
  * change customer & customer data in the order via retailCRM history.
diff --git a/src/include/components/class-wc-retailcrm-history-assembler.php b/src/include/components/class-wc-retailcrm-history-assembler.php
index 788f176..f2eb389 100644
--- a/src/include/components/class-wc-retailcrm-history-assembler.php
+++ b/src/include/components/class-wc-retailcrm-history-assembler.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_History_Assembler - Assembles history records into list which closely resembles
  * orders & customers list output from API.
diff --git a/src/include/components/class-wc-retailcrm-logger.php b/src/include/components/class-wc-retailcrm-logger.php
index 9ea0fe1..c7e85a4 100644
--- a/src/include/components/class-wc-retailcrm-logger.php
+++ b/src/include/components/class-wc-retailcrm-logger.php
@@ -1,18 +1,17 @@
 <?php
-/**
- * PHP version 5.6
- *
- * Class WC_Retailcrm_Logger - Allows display important debug information.
- *
- * @category Integration
- * @author   RetailCRM <integration@retailcrm.ru>
- * @license  http://retailcrm.ru Proprietary
- * @link     http://retailcrm.ru
- * @see      http://help.retailcrm.ru
- */
 
 if (!class_exists('WC_Retailcrm_Logger') && class_exists('WC_Log_Levels')) :
+
     /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Logger - Allows display important debug information.
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
      * @codeCoverageIgnore
      */
     class WC_Retailcrm_Logger
diff --git a/src/include/customer/class-wc-retailcrm-customer-address.php b/src/include/customer/class-wc-retailcrm-customer-address.php
index 0e85f96..2d191bb 100644
--- a/src/include/customer/class-wc-retailcrm-customer-address.php
+++ b/src/include/customer/class-wc-retailcrm-customer-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Address - Builds a billing address for a customer.
  *
diff --git a/src/include/customer/class-wc-retailcrm-customer-corporate-address.php b/src/include/customer/class-wc-retailcrm-customer-corporate-address.php
index b22aab6..8b2af5d 100644
--- a/src/include/customer/class-wc-retailcrm-customer-corporate-address.php
+++ b/src/include/customer/class-wc-retailcrm-customer-corporate-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Corporate_Address - Builds a billing address for a corporate customer.
  *
diff --git a/src/include/customer/woocommerce/class-wc-retailcrm-wc-customer-builder.php b/src/include/customer/woocommerce/class-wc-retailcrm-wc-customer-builder.php
index a11408a..a3052e5 100644
--- a/src/include/customer/woocommerce/class-wc-retailcrm-wc-customer-builder.php
+++ b/src/include/customer/woocommerce/class-wc-retailcrm-wc-customer-builder.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_WC_Customer_Builder - It converts retailCRM customer data (array) into WC_Customer.
  *
diff --git a/src/include/icml/class-wc-retailcrm-icml-writer.php b/src/include/icml/class-wc-retailcrm-icml-writer.php
new file mode 100644
index 0000000..5980223
--- /dev/null
+++ b/src/include/icml/class-wc-retailcrm-icml-writer.php
@@ -0,0 +1,253 @@
+<?php
+
+if (!class_exists('WC_Retailcrm_Icml_Writer')) :
+    /**
+     * PHP version 7.0
+     *
+     * Class WC_Retailcrm_Icml - Generate ICML file (catalog).
+     *
+     * @category Integration
+     * @author   RetailCRM <integration@retailcrm.ru>
+     * @license  http://retailcrm.ru Proprietary
+     * @link     http://retailcrm.ru
+     * @see      http://help.retailcrm.ru
+     */
+    class WC_Retailcrm_Icml_Writer
+    {
+        private $writer;
+
+        public function __construct($tmpFile)
+        {
+            $this->writer = new \XMLWriter();
+            $this->writer->openUri($tmpFile);
+        }
+
+        /**
+         * Write HEAD in ICML catalog.
+         *
+         * @param string $shop
+         *
+         * @return void
+         */
+        public function writeHead(string $shop)
+        {
+            $this->writer->startDocument('1.0', 'UTF-8');
+            $this->writer->startElement('yml_catalog'); // start <yml_catalog>
+            $this->writer->writeAttribute('date', date('Y-m-d H:i:s'));
+            $this->writer->startElement('shop'); // start <shop>
+            $this->writer->WriteElement('name', $shop);
+        }
+
+        /**
+         * Write categories in ICML catalog.
+         *
+         * @param array $categories
+         *
+         * @return void
+         */
+        public function writeCategories(array $categories)
+        {
+            $this->writer->startElement('categories'); // start <categories>
+
+            $this->addCategories($categories);
+
+            $this->writer->endElement(); // end </categories>
+        }
+
+        /**
+         * Add category in ICML catalog.
+         *
+         * @param array $categories
+         *
+         * @return void
+         */
+        private function addCategories(array $categories)
+        {
+            foreach ($categories as $category) {
+                if (!array_key_exists('name', $category) || !array_key_exists('id', $category)) {
+                    continue;
+                }
+
+                $this->writer->startElement('category'); // start <category>
+
+                $this->writer->writeAttribute('id', $category['id']);
+
+                if (array_key_exists('parentId', $category) && 0 < $category['parentId']) {
+                    $this->writer->writeAttribute('parentId', $category['parentId']);
+                }
+
+                $this->writer->writeElement('name', $category['name']);
+
+                if (array_key_exists('picture', $category) && $category['picture']) {
+                    $this->writer->writeElement('picture', $category['picture']);
+                }
+
+                $this->writer->endElement(); // end </category>
+            }
+        }
+
+        /**
+         * Write offers in ICML catalog.
+         *
+         * @return void
+         */
+        public function writeOffers($offers)
+        {
+            $this->writer->startElement('offers'); // start <offers>
+
+            $this->addOffers($offers);
+
+            $this->writer->endElement(); // end </offers>
+        }
+
+        /**
+         * Add offer in ICML catalog.
+         *
+         * @return void
+         */
+        private function addOffers($offers)
+        {
+            foreach ($offers as $offer) {
+                if (!array_key_exists('id', $offer)) {
+                    continue;
+                }
+
+                $this->writer->startElement('offer'); // start <offer>
+
+                if (!array_key_exists('productId', $offer) || empty($offer['productId'])) {
+                    $offer['productId'] = $offer['id'];
+                }
+
+                $this->writer->writeAttribute('id', $offer['id']);
+                $this->writer->writeAttribute('productId', $offer['productId']);
+                $this->writer->writeAttribute('quantity', (int) $offer['quantity'] ?? 0);
+
+                if (isset($offer['categoryId'])) {
+                    if (is_array($offer['categoryId'])) {
+                        foreach ($offer['categoryId'] as $categoryId) {
+                            $this->writer->writeElement('categoryId', $categoryId);
+                        }
+                    } else {
+                        $this->writer->writeElement('categoryId', $offer['$categoryId']);
+                    }
+                }
+
+                if (!empty($offer['picture'])) {
+                    foreach ($offer['picture'] as $urlImage) {
+                        $this->writer->writeElement('picture', $urlImage);
+                    }
+                }
+
+                if (empty($offer['name'])) {
+                    $offer['name'] = __('Untitled', 'retailcrm');
+                }
+
+                if (empty($offer['productName'])) {
+                    $offer['productName'] = $offer['name'];
+                }
+
+                unset($offer['id'], $offer['productId'], $offer['categoryId'], $offer['quantity'], $offer['picture']);
+
+                $this->writeOffersProperties($offer);
+
+                if (!empty($offer['params'])) {
+                    $this->writeOffersParams($offer['params']);
+                }
+
+                if (!empty($offer['dimensions'])) {
+                    $this->writer->writeElement('dimensions', $offer['dimensions']);
+                }
+
+                if (!empty($offer['weight'])) {
+                    $this->writer->writeElement('weight', $offer['weight']);
+                }
+
+                if (!empty($offer['tax'])) {
+                    $this->writer->writeElement('vatRate', $offer['tax']);
+                }
+
+                $this->writer->endElement(); // end </offer>
+            }
+        }
+
+        /**
+         * Set offer properties.
+         *
+         * @param array $offerProperties
+         *
+         * @return void
+         */
+        private function writeOffersProperties(array $offerProperties)
+        {
+            foreach ($offerProperties as $key => $value) {
+                if (!in_array($key, WC_Retailcrm_Icml::OFFER_PROPERTIES)) {
+                    continue;
+                }
+
+                if (is_array($value)) {
+                    foreach ($value as $element) {
+                        $this->writer->writeElement($key, $element);
+                    }
+                } else {
+                    $this->writer->writeElement($key, $value);
+                }
+            }
+        }
+
+        /**
+         * Set offer params.
+         *
+         * @param array $offerParams
+         *
+         * @return void
+         */
+        private function writeOffersParams(array $offerParams)
+        {
+            foreach ($offerParams as $param) {
+                if (
+                    empty($param['code'])
+                    || empty($param['name'])
+                    || empty($param['value'])
+                ) {
+                    continue;
+                }
+
+                $this->writer->startElement('param'); // start <param>
+
+                $this->writer->writeAttribute('code', $param['code']);
+                $this->writer->writeAttribute('name', $param['name']);
+                $this->writer->text($param['value']);
+
+                $this->writer->endElement(); // end </param>
+            }
+        }
+
+        /**
+         * Write end tags in ICML catalog.
+         *
+         * @return void
+         */
+        public function writeEnd()
+        {
+            $this->writer->endElement(); // end </yml_catalog>
+            $this->writer->endElement(); // end </shop>
+            $this->writer->endDocument();
+        }
+
+        /**
+         * Save ICML catalog.
+         *
+         * @return void
+         */
+        public function formatXml($tmpfile)
+        {
+            $dom = dom_import_simplexml(simplexml_load_file($tmpfile))->ownerDocument;
+            $dom->formatOutput = true;
+            $formatted = $dom->saveXML();
+
+            unset($dom, $this->writer);
+
+            file_put_contents($tmpfile, $formatted);
+        }
+    }
+endif;
diff --git a/src/include/interfaces/class-wc-retailcrm-builder-interface.php b/src/include/interfaces/class-wc-retailcrm-builder-interface.php
index d3abfb9..8b27fb6 100644
--- a/src/include/interfaces/class-wc-retailcrm-builder-interface.php
+++ b/src/include/interfaces/class-wc-retailcrm-builder-interface.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Interface WC_Retailcrm_Builder_Interface - Main interface for builders. All builders.
  *
diff --git a/src/include/models/class-wc-retailcrm-customer-switcher-result.php b/src/include/models/class-wc-retailcrm-customer-switcher-result.php
index d6a7995..25e4070 100644
--- a/src/include/models/class-wc-retailcrm-customer-switcher-result.php
+++ b/src/include/models/class-wc-retailcrm-customer-switcher-result.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Switcher_Result - Holds modified order and customer which was set in the order.
  * If customer is null, then only order props was updated. Previous customer (if it was registered)
@@ -31,7 +32,8 @@ class WC_Retailcrm_Customer_Switcher_Result
         $this->wcCustomer = $wcCustomer;
         $this->wcOrder = $wcOrder;
 
-        if ((!is_null($this->wcCustomer) && !($this->wcCustomer instanceof WC_Customer))
+        if (
+            (!is_null($this->wcCustomer) && !($this->wcCustomer instanceof WC_Customer))
             || !($this->wcOrder instanceof WC_Order)
         ) {
             throw new \InvalidArgumentException(sprintf('Incorrect data provided to %s', __CLASS__));
diff --git a/src/include/models/class-wc-retailcrm-customer-switcher-state.php b/src/include/models/class-wc-retailcrm-customer-switcher-state.php
index 26a69ce..b323175 100644
--- a/src/include/models/class-wc-retailcrm-customer-switcher-state.php
+++ b/src/include/models/class-wc-retailcrm-customer-switcher-state.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Switcher_State - Holds WC_Retailcrm_Customer_Switcher state.
  * It exists only because we need to comply with builder interface.
@@ -14,13 +15,13 @@
 class WC_Retailcrm_Customer_Switcher_State
 {
     /** @var \WC_Order $wcOrder */
-   private $wcOrder;
+    private $wcOrder;
 
     /** @var array */
-   private $newCustomer;
+    private $newCustomer;
 
     /** @var array */
-   private $newContact;
+    private $newContact;
 
     /** @var string $newCompanyName */
     private $newCompanyName;
@@ -183,4 +184,3 @@ class WC_Retailcrm_Customer_Switcher_State
         }
     }
 }
-
diff --git a/src/include/order/class-wc-retailcrm-order-address.php b/src/include/order/class-wc-retailcrm-order-address.php
index 7b6300e..e59b796 100644
--- a/src/include/order/class-wc-retailcrm-order-address.php
+++ b/src/include/order/class-wc-retailcrm-order-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Address - Build address for CRM order.
  *
diff --git a/src/include/order/class-wc-retailcrm-order-item.php b/src/include/order/class-wc-retailcrm-order-item.php
index 7b984d1..b6186b5 100644
--- a/src/include/order/class-wc-retailcrm-order-item.php
+++ b/src/include/order/class-wc-retailcrm-order-item.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Item - Build items for CRM order.
  *
diff --git a/src/include/order/class-wc-retailcrm-order-payment.php b/src/include/order/class-wc-retailcrm-order-payment.php
index a221371..5f1dc38 100644
--- a/src/include/order/class-wc-retailcrm-order-payment.php
+++ b/src/include/order/class-wc-retailcrm-order-payment.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Payment - Build payments for CRM order.
  *
diff --git a/src/include/order/class-wc-retailcrm-order.php b/src/include/order/class-wc-retailcrm-order.php
index b9b71cf..c5877a0 100644
--- a/src/include/order/class-wc-retailcrm-order.php
+++ b/src/include/order/class-wc-retailcrm-order.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order - Build main data for CRM order.
  *
diff --git a/src/languages/retailcrm-es_ES.mo b/src/languages/retailcrm-es_ES.mo
index 44b7a355f5d2b6dd2ec3aad733dbd11df2ad6daa..8c7c8b19d6e031231ecd81b4b5e419edae4ec495 100644
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diff --git a/src/languages/retailcrm-ru_RU.mo b/src/languages/retailcrm-ru_RU.mo
index c4ddf79656e730eb1b057fd47f321d4eec90d11e..9b8246da7b7df77d70d3aa186f79e7f38f607ed2 100644
GIT binary patch
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diff --git a/src/readme.txt b/src/readme.txt
index 972897c..dd61ec5 100644
--- a/src/readme.txt
+++ b/src/readme.txt
@@ -2,10 +2,10 @@
 Contributors: Simla.com
 Donate link: https://www.simla.com
 Tags: Интеграция, Simla.com, simla
-Requires PHP: 5.6
+Requires PHP: 7.0
 Requires at least: 5.3
 Tested up to: 6.0
-Stable tag: 4.4.9
+Stable tag: 4.5.0
 License: GPLv1 or later
 License URI: http://www.gnu.org/licenses/gpl-1.0.html
 
@@ -82,6 +82,12 @@ Asegúrate de tener una clave API específica para cada tienda. Las siguientes i
 
 
 == Changelog ==
+= 4.5.0 =
+* Fix path for js scripts
+* Migrating to PHP 7.0.
+* Change logic work with ICML catalog: added streaming generation, added generators in the ICML generation process.
+* Change logic work with address
+
 = 4.4.9 =
 * Fix bug with product tax
 
diff --git a/src/retailcrm.php b/src/retailcrm.php
index fe53261..6c5dfa7 100644
--- a/src/retailcrm.php
+++ b/src/retailcrm.php
@@ -5,7 +5,7 @@
  * Description: Integration plugin for WooCommerce & Simla.com
  * Author: RetailDriver LLC
  * Author URI: http://retailcrm.pro/
- * Version: 4.4.9
+ * Version: 4.5.0
  * Tested up to: 6.0
  * WC requires at least: 5.4
  * WC tested up to: 6.7
@@ -45,9 +45,9 @@ if (!class_exists( 'WC_Integration_Retailcrm')) :
 
             if (class_exists( 'WC_Integration' )) {
                 self::load_module();
-                add_filter('woocommerce_integrations', array( $this, 'add_integration'));
+                add_filter('woocommerce_integrations', [$this, 'add_integration']);
             } else {
-                add_action('admin_notices', array($this, 'woocommerce_missing_notice'));
+                add_action('admin_notices', [$this, 'woocommerce_missing_notice']);
             }
         }
 
@@ -117,6 +117,7 @@ if (!class_exists( 'WC_Integration_Retailcrm')) :
             require_once(self::checkCustomFile('include/customer/class-wc-retailcrm-customer-address.php'));
             require_once(self::checkCustomFile('include/customer/class-wc-retailcrm-customer-corporate-address.php'));
             require_once(self::checkCustomFile('include/class-wc-retailcrm-icml.php'));
+            require_once(self::checkCustomFile('include/icml/class-wc-retailcrm-icml-writer.php'));
             require_once(self::checkCustomFile('include/class-wc-retailcrm-orders.php'));
             require_once(self::checkCustomFile('include/class-wc-retailcrm-customers.php'));
             require_once(self::checkCustomFile('include/class-wc-retailcrm-inventories.php'));
@@ -186,10 +187,10 @@ if (!class_exists( 'WC_Integration_Retailcrm')) :
 
             return wp_nonce_url(
                 add_query_arg(
-                    array(
+                    [
                         'action' => $action,
                         'plugin' => $pluginSlug
-                    ),
+                    ],
                     admin_url( 'update.php' )
                 ),
                 $action.'_'.$pluginSlug
@@ -205,5 +206,5 @@ if (!class_exists( 'WC_Integration_Retailcrm')) :
     $plugin->register_activation_hook();
     $plugin->register_deactivation_hook();
 
-    add_action('plugins_loaded', array('WC_Integration_Retailcrm', 'get_instance'), 0);
+    add_action('plugins_loaded', ['WC_Integration_Retailcrm', 'get_instance'], 0);
 endif;
diff --git a/src/uninstall.php b/src/uninstall.php
index e7878dc..62e7508 100644
--- a/src/uninstall.php
+++ b/src/uninstall.php
@@ -16,7 +16,7 @@
  *
  * @link       https://wordpress.org/plugins/woo-retailcrm/
  *
- * @version    4.4.9
+ * @version    4.5.0
  *
  * @package    RetailCRM
  */
diff --git a/tests/abstracts/test-wc-retailcrm-abstract-builder.php b/tests/abstracts/test-wc-retailcrm-abstract-builder.php
index 5d0a476..15ae18f 100644
--- a/tests/abstracts/test-wc-retailcrm-abstract-builder.php
+++ b/tests/abstracts/test-wc-retailcrm-abstract-builder.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Abstracts_Settings_Test - Testing WC_Retailcrm_Abstracts_Settings.
  *
diff --git a/tests/customer/test-wc-retailcrm-customer-address.php b/tests/customer/test-wc-retailcrm-customer-address.php
index 8b0faee..b3cf0e7 100644
--- a/tests/customer/test-wc-retailcrm-customer-address.php
+++ b/tests/customer/test-wc-retailcrm-customer-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Address_Test - Testing WC_Retailcrm_Customer_Address.
  *
diff --git a/tests/customer/test-wc-retailcrm-customer-corporate-address.php b/tests/customer/test-wc-retailcrm-customer-corporate-address.php
index 7dafc26..b09a8c8 100644
--- a/tests/customer/test-wc-retailcrm-customer-corporate-address.php
+++ b/tests/customer/test-wc-retailcrm-customer-corporate-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Corporate_Address_Test - Testing WC_Retailcrm_Customer_Corporate_Address.
  *
diff --git a/tests/customer/woocommerce/test-wc-retailcrm-wc-customer-builder.php b/tests/customer/woocommerce/test-wc-retailcrm-wc-customer-builder.php
index 7f2b58f..e9e1ea9 100644
--- a/tests/customer/woocommerce/test-wc-retailcrm-wc-customer-builder.php
+++ b/tests/customer/woocommerce/test-wc-retailcrm-wc-customer-builder.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_WC_Customer_Builder_Test - Testing WC_Retailcrm_WC_Customer_Builder.
  *
diff --git a/tests/datasets/data-base-retailcrm.php b/tests/datasets/data-base-retailcrm.php
index e70e6b4..bc2f880 100644
--- a/tests/datasets/data-base-retailcrm.php
+++ b/tests/datasets/data-base-retailcrm.php
@@ -3,7 +3,7 @@
 namespace datasets;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class DataBaseRetailCrm - Data set for WC_Retailcrm_Base.
  *
diff --git a/tests/datasets/data-customers-retailcrm.php b/tests/datasets/data-customers-retailcrm.php
index 7df9ae3..8a14387 100644
--- a/tests/datasets/data-customers-retailcrm.php
+++ b/tests/datasets/data-customers-retailcrm.php
@@ -3,7 +3,7 @@
 namespace datasets;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class DataCustomersRetailCrm - Data set for WC_Retailcrm_Customers.
  *
diff --git a/tests/datasets/data-history-retailcrm.php b/tests/datasets/data-history-retailcrm.php
index 7a03a64..33c7228 100644
--- a/tests/datasets/data-history-retailcrm.php
+++ b/tests/datasets/data-history-retailcrm.php
@@ -3,7 +3,7 @@
 namespace datasets;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class DataHistoryRetailCrm - Data set for WC_Retailcrm_History.
  *
diff --git a/tests/datasets/data-inventories-retailcrm.php b/tests/datasets/data-inventories-retailcrm.php
index ef18936..4925e2a 100644
--- a/tests/datasets/data-inventories-retailcrm.php
+++ b/tests/datasets/data-inventories-retailcrm.php
@@ -3,7 +3,7 @@
 namespace datasets;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class DataInventoriesRetailCrm - Data set for WC_Retailcrm_Inventories.
  *
diff --git a/tests/helpers/class-wc-retailcrm-log-handler-stdout.php b/tests/helpers/class-wc-retailcrm-log-handler-stdout.php
index 44c8528..abfb5e9 100644
--- a/tests/helpers/class-wc-retailcrm-log-handler-stdout.php
+++ b/tests/helpers/class-wc-retailcrm-log-handler-stdout.php
@@ -1,6 +1,11 @@
 <?php
+
+if (!defined( 'ABSPATH')) {
+    exit;
+}
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Log_Handler_Stdout - Handles log entries by writing to a stdout.
  *
@@ -10,11 +15,6 @@
  * @link     http://retailcrm.ru
  * @see      http://help.retailcrm.ru
  */
-
-if (!defined( 'ABSPATH')) {
-    exit;
-}
-
 class WC_Retailcrm_Log_Handler_Stdout extends WC_Log_Handler
 {
     /**
diff --git a/tests/helpers/class-wc-retailcrm-response-helper.php b/tests/helpers/class-wc-retailcrm-response-helper.php
index 1356fd9..733bf99 100644
--- a/tests/helpers/class-wc-retailcrm-response-helper.php
+++ b/tests/helpers/class-wc-retailcrm-response-helper.php
@@ -1,6 +1,11 @@
 <?php
+
+if (!class_exists('WC_Retailcrm_Response')) {
+    require_once dirname(__FILE__) . '/../../src/include/api/class-wc-retailcrm-response.php';
+}
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Response_Helper - Set response for mock object.
  *
@@ -10,11 +15,6 @@
  * @link     http://retailcrm.ru
  * @see      http://help.retailcrm.ru
  */
-
-if (!class_exists('WC_Retailcrm_Response')) {
-    require_once dirname(__FILE__) . '/../../src/include/api/class-wc-retailcrm-response.php';
-}
-
 class WC_Retailcrm_Response_Helper extends WC_Retailcrm_Response
 {
     public function setResponse($response)
diff --git a/tests/helpers/class-wc-retailcrm-test-case-helper.php b/tests/helpers/class-wc-retailcrm-test-case-helper.php
index 69ba518..a1f2a4c 100644
--- a/tests/helpers/class-wc-retailcrm-test-case-helper.php
+++ b/tests/helpers/class-wc-retailcrm-test-case-helper.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Test_Case_Helper - Helper for testing.
  *
diff --git a/tests/models/test-wc-retailcrm-customer-switcher-result.php b/tests/models/test-wc-retailcrm-customer-switcher-result.php
index 43f1237..a14c9e1 100644
--- a/tests/models/test-wc-retailcrm-customer-switcher-result.php
+++ b/tests/models/test-wc-retailcrm-customer-switcher-result.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Switcher_Result_Test - Testing WC_Retailcrm_Customer_Switcher_Result.
  *
diff --git a/tests/models/test-wc-retailcrm-customer-switcher-state.php b/tests/models/test-wc-retailcrm-customer-switcher-state.php
index 8cff38c..ce2183f 100644
--- a/tests/models/test-wc-retailcrm-customer-switcher-state.php
+++ b/tests/models/test-wc-retailcrm-customer-switcher-state.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customer_Switcher_State_Test - Testing WC_Retailcrm_Customer_Switcher_State.
  *
diff --git a/tests/order/test-wc-retailcrm-order-address.php b/tests/order/test-wc-retailcrm-order-address.php
index 5c1c478..e036281 100644
--- a/tests/order/test-wc-retailcrm-order-address.php
+++ b/tests/order/test-wc-retailcrm-order-address.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Address_Test - Testing WC_Retailcrm_Order_Address.
  *
diff --git a/tests/order/test-wc-retailcrm-order-item.php b/tests/order/test-wc-retailcrm-order-item.php
index 4c5184a..27d0086 100644
--- a/tests/order/test-wc-retailcrm-order-item.php
+++ b/tests/order/test-wc-retailcrm-order-item.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Item_Test - Testing WC_Retailcrm_Order_Item.
  *
diff --git a/tests/order/test-wc-retailcrm-order-payment.php b/tests/order/test-wc-retailcrm-order-payment.php
index 21b23f9..984dd69 100644
--- a/tests/order/test-wc-retailcrm-order-payment.php
+++ b/tests/order/test-wc-retailcrm-order-payment.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Payment_Test - Testing WC_Retailcrm_Order_Payment.
  *
diff --git a/tests/order/test-wc-retailcrm-order.php b/tests/order/test-wc-retailcrm-order.php
index a0906f5..c546979 100644
--- a/tests/order/test-wc-retailcrm-order.php
+++ b/tests/order/test-wc-retailcrm-order.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Order_Test - Testing WC_Retailcrm_Order.
  *
diff --git a/tests/test-wc-retailcrm-base.php b/tests/test-wc-retailcrm-base.php
index d3ba7f8..4a81fcc 100644
--- a/tests/test-wc-retailcrm-base.php
+++ b/tests/test-wc-retailcrm-base.php
@@ -3,7 +3,7 @@
 use datasets\DataBaseRetailCrm;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Base_Test - Testing WC_Retailcrm_Base.
  *
diff --git a/tests/test-wc-retailcrm-customers.php b/tests/test-wc-retailcrm-customers.php
index 7b4315a..7d0db15 100644
--- a/tests/test-wc-retailcrm-customers.php
+++ b/tests/test-wc-retailcrm-customers.php
@@ -3,7 +3,7 @@
 use datasets\DataCustomersRetailCrm;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Customers_Test - Testing WC_Retailcrm_Customers.
  *
diff --git a/tests/test-wc-retailcrm-daemon-collector.php b/tests/test-wc-retailcrm-daemon-collector.php
index 9e93791..1eb86d5 100644
--- a/tests/test-wc-retailcrm-daemon-collector.php
+++ b/tests/test-wc-retailcrm-daemon-collector.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Daemon_Collector_Test - Testing WC_Retailcrm_Daemon_Collector.
  *
diff --git a/tests/test-wc-retailcrm-ga.php b/tests/test-wc-retailcrm-ga.php
index bd4264f..f964ecf 100644
--- a/tests/test-wc-retailcrm-ga.php
+++ b/tests/test-wc-retailcrm-ga.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Google_Analytics_Test - Testing WC_Retailcrm_Google_Analytics.
  *
diff --git a/tests/test-wc-retailcrm-history.php b/tests/test-wc-retailcrm-history.php
index d403294..0e825be 100644
--- a/tests/test-wc-retailcrm-history.php
+++ b/tests/test-wc-retailcrm-history.php
@@ -3,7 +3,7 @@
 use datasets\DataHistoryRetailCrm;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_History_Test - Testing WC_Retailcrm_History.
  *
diff --git a/tests/test-wc-retailcrm-icml.php b/tests/test-wc-retailcrm-icml.php
index 322b42a..ff751c6 100644
--- a/tests/test-wc-retailcrm-icml.php
+++ b/tests/test-wc-retailcrm-icml.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Icml_Test - Testing WC_Retailcrm_Icml.
  *
diff --git a/tests/test-wc-retailcrm-inventories.php b/tests/test-wc-retailcrm-inventories.php
index 00fefcc..79a5360 100644
--- a/tests/test-wc-retailcrm-inventories.php
+++ b/tests/test-wc-retailcrm-inventories.php
@@ -3,7 +3,7 @@
 use datasets\DataInventoriesRetailCrm;
 
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Inventories_Test - Testing WC_Retailcrm_Inventories.
  *
diff --git a/tests/test-wc-retailcrm-orders.php b/tests/test-wc-retailcrm-orders.php
index 04a8bc5..2107226 100644
--- a/tests/test-wc-retailcrm-orders.php
+++ b/tests/test-wc-retailcrm-orders.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Orders_Test - Testing WC_Retailcrm_Orders.
  *
diff --git a/tests/test-wc-retailcrm-plugin.php b/tests/test-wc-retailcrm-plugin.php
index 977fb1e..f233730 100644
--- a/tests/test-wc-retailcrm-plugin.php
+++ b/tests/test-wc-retailcrm-plugin.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Plugin_Test - Testing WC_Retailcrm_Plugin.
  *
diff --git a/tests/test-wc-retailcrm-uploader.php b/tests/test-wc-retailcrm-uploader.php
index ce88770..11f631e 100644
--- a/tests/test-wc-retailcrm-uploader.php
+++ b/tests/test-wc-retailcrm-uploader.php
@@ -1,6 +1,7 @@
 <?php
+
 /**
- * PHP version 5.6
+ * PHP version 7.0
  *
  * Class WC_Retailcrm_Uploader_Test - Testing WC_Retailcrm_Uploader.
  *