VQMOD OPENCART 3 - Extension Port from 1.5 to 3.x modification

I need to port this extension from 1.5x to 3.x. somebody can help?! <modification> <id>Product sale countdown Timer</id> <version>1.0</version> <vqmver>2.1.7</vqmver> <author>[login to view URL]</author> <file name="catalog/model/catalog/[login to view URL]"> <operation> <search position="before"><![CDATA[ public function getTotalProductSpecials() { ]]></search> <add><![CDATA[ /* Nikita_SP MOD FOR COUNTER */ public function getProductSpecialData($product_id) { if ($this->customer->isLogged()) { $customer_group_id = $this->customer->getCustomerGroupId(); } else { $customer_group_id = $this->config->get('config_customer_group_id'); } $query = $this->db->query("SELECT `price`, `date_end`, `date_start` FROM " . DB_PREFIX . "product_special WHERE product_id = '" . (int)$product_id . "' AND customer_group_id = '" . (int)$customer_group_id . "' AND ((date_start = '0000-00-00' OR date_start < NOW()) AND (date_end = '0000-00-00' OR date_end > NOW())) ORDER BY priority ASC, price ASC LIMIT 1"); if ($query->num_rows) { return $query->row; } else { return FALSE; } } ]]></add> </operation> </file> <file name="catalog/controller/product/[login to view URL]"> <operation> <search position="after"><![CDATA[ $data['special'] = $this->currency->format($this->tax->calculate($product_info['special'], $product_info['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']); ]]></search> <add><![CDATA[ $special = $this->model_catalog_product->getProductSpecialData($this->request->get['product_id']); if($special['date_end'] && $this->config->get('countdowntimer_product') && time() < strtotime($special['date_end'])){ $this->load->language('module/countdowntimer'); $this->data['special_end'] = $special['date_end']; $this->data['special_start'] = $special['date_start']; }else{ $data['special_end'] = false; } ]]></add> </operation> <operation> <search position="after"><![CDATA[ $data['special'] = false; ]]></search> <add><![CDATA[ $data['special_end'] = false; ]]></add> </operation> </file> <file name="catalog/view/theme/*/template/product/[login to view URL]"> <operation> <search><![CDATA[ <span class="price-old" id="price-old"><?php echo $price; ?></span> ]]></search> <add position="replace"><![CDATA[ <?php if (!$special_end) { ?> <?php } else { ?> <span class="price-old" id="price-old"><?php echo $price; ?></span> <?php if ($price) { ?> <?php if ($special) { if (isset($priceISO) && isset($specialISO)) { $floatPrice = $priceISO; $floatSpecial = $specialISO; } else { $floatPrice = floatval(preg_replace('/[\.\s+]/is','',$price)); $floatSpecial = floatval(preg_replace('/[\.\s]/is','',$special)); } $priceDiff = $floatPrice - $floatSpecial; if ((int)$priceDiff - $priceDiff != 0) { // make it in percent $discount = round((($floatPrice-$floatSpecial)/$floatPrice)*100, 1).'%'; } else { //make it in euros $discount = $priceDiff.'€'; } ?> <span class="container-discoutn-percentage">Desconto: <?php echo $discount; ?> </span> <div class="promo" style="border-top: 1px solid #e6e6e6;font-size: 10px; line-height: 10px;text-transform; font-weight:normal;text-transform:none;padding-top: 30px; margin-top: 30px;"> <span class="label-promo"> * Promoção válida de <span class="data-promo"><?php echo $special_start; ?></span> a <span class="data-promo"><?php echo $special_end; ?></span>. Limitado ao stock existente. </span> </div> <?php } ?> <?php } ?> <?php } ?> ]]></add> </operation> </file> </modification>