Ekdant-Online-Store/admininistrator/controller/mail/voucher.php

<?php
namespace Opencart\Admin\Controller\Mail;
/**
 * Class Voucher
 *
 * @package Opencart\Admin\Controller\Mail
 */
class Voucher extends \Opencart\System\Engine\Controller {
	/**
	 * @param int $voucher_id
	 *
	 * @return void
	 * @throws \Exception
	 */
	public function index(int $voucher_id): void {
		$this->load->model('sale/order');

		$voucher_info = $this->model_sale_voucher->getVoucher($voucher_id);

		if ($voucher_info) {
			// If voucher does not belong to an order
			$this->load->language('mail/voucher');

			if ($voucher_info['order_id']) {
				$order_id = $voucher_info['order_id'];
			} else {
				$order_id = 0;
			}

			$order_info = $this->model_sale_order->getOrder($order_id);

			// If voucher belongs to an order
			if ($order_info) {
				$this->load->model('localisation/language');

				$language_info = $this->model_localisation_language->getLanguage($order_info['language_id']);

				if ($language_info) {
					$language_code = $language_info['code'];
				} else {
					$language_code = $this->config->get('config_language');
				}

				$this->load->language('default', 'mail', $language_code);
				$this->load->language('mail/voucher', 'mail', $language_code);

				$store_name = html_entity_decode($order_info['store_name'], ENT_QUOTES, 'UTF-8');

				// Add language vars to the template folder
				$results = $this->language->all('mail');

				foreach ($results as $key => $value) {
					$data[$key] = $value;
				}

				$from_name = html_entity_decode($voucher_info['from_name'], ENT_QUOTES, 'UTF-8');

				$subject = sprintf($this->language->get('mail_text_subject'), $from_name);

				// HTML Mail
				$data['title'] = sprintf($this->language->get('mail_text_subject'), $from_name);

				$data['text_greeting'] = sprintf($this->language->get('mail_text_greeting'), $this->currency->format($voucher_info['amount'], (!empty($order_info['currency_code']) ? $order_info['currency_code'] : $this->config->get('config_currency')), (!empty($order_info['currency_value']) ? $order_info['currency_value'] : $this->currency->getValue($this->config->get('config_currency')))));
				$data['text_from'] = sprintf($this->language->get('mail_text_from'), $from_name);
				$data['text_redeem'] = sprintf($this->language->get('mail_text_redeem'), $voucher_info['code']);

				$this->load->model('sale/voucher_theme');

				$voucher_theme_info = $this->model_sale_voucher_theme->getVoucherTheme($voucher_info['voucher_theme_id']);

				if ($voucher_theme_info && is_file(DIR_IMAGE . $voucher_theme_info['image'])) {
					$data['image'] = HTTP_CATALOG . 'image/' . $voucher_theme_info['image'];
				} else {
					$data['image'] = '';
				}

				$data['message'] = nl2br($voucher_info['message']);

				$data['store_name'] = $store_name;
				$data['store_url'] = $order_info['store_url'];
			} else {
				$store_name = html_entity_decode($this->config->get('config_name'), ENT_QUOTES, 'UTF-8');

				$from_name = html_entity_decode($voucher_info['from_name'], ENT_QUOTES, 'UTF-8');

				$subject = html_entity_decode(sprintf($this->language->get('text_subject'), $from_name), ENT_QUOTES, 'UTF-8');

				$data['title'] = sprintf($this->language->get('text_subject'), $from_name);

				$data['text_greeting'] = sprintf($this->language->get('text_greeting'), $this->currency->format($voucher_info['amount'], $this->config->get('config_currency')));
				$data['text_from'] = sprintf($this->language->get('text_from'), $from_name);
				$data['text_redeem'] = sprintf($this->language->get('text_redeem'), $voucher_info['code']);

				$this->load->model('sale/voucher_theme');

				$voucher_theme_info = $this->model_sale_voucher_theme->getVoucherTheme($voucher_info['voucher_theme_id']);

				if ($voucher_theme_info && is_file(DIR_IMAGE . $voucher_theme_info['image'])) {
					$data['image'] = HTTP_CATALOG . 'image/' . $voucher_theme_info['image'];
				} else {
					$data['image'] = '';
				}

				$data['message'] = nl2br($voucher_info['message']);

				$data['store_name'] = $store_name;
				$data['store_url'] = HTTP_CATALOG;
			}

			if ($this->config->get('config_mail_engine')) {
				$mail_option = [
					'parameter'     => $this->config->get('config_mail_parameter'),
					'smtp_hostname' => $this->config->get('config_mail_smtp_hostname'),
					'smtp_username' => $this->config->get('config_mail_smtp_username'),
					'smtp_password' => html_entity_decode($this->config->get('config_mail_smtp_password'), ENT_QUOTES, 'UTF-8'),
					'smtp_port'     => $this->config->get('config_mail_smtp_port'),
					'smtp_timeout'  => $this->config->get('config_mail_smtp_timeout')
				];

				$mail = new \Opencart\System\Library\Mail($this->config->get('config_mail_engine'), $mail_option);
				$mail->setTo($voucher_info['to_email']);
				$mail->setFrom($this->config->get('config_email'));
				$mail->setSender($store_name);
				$mail->setSubject($subject);
				$mail->setHtml($this->load->view('mail/voucher', $data));
				$mail->send();
			}
		}
	}
}