oct_stock_notifier.php
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<?php
/**
 * @copyright    OCTemplates
 * @support      https://octemplates.net/
 * @license      LICENSE.txt
 */
class ControllerOctemplatesModuleOctStockNotifier extends Controller {
    private $error = array();
    public function index()
    {
        $this->load->language('octemplates/module/oct_stock_notifier');
        //Add Codemirror Styles && Scripts
        $this->document->addScript('view/javascript/codemirror/lib/codemirror.js');
        $this->document->addScript('view/javascript/codemirror/lib/xml.js');
        $this->document->addScript('view/javascript/codemirror/lib/formatting.js');
        $this->document->addStyle('view/javascript/codemirror/lib/codemirror.css');
        $this->document->addStyle('view/javascript/codemirror/theme/monokai.css');
        //Add Summernote Styles && Scripts
        $this->document->addScript('view/javascript/summernote/summernote.js');
        $this->document->addScript('view/javascript/summernote/summernote-image-attributes.js');
        $this->document->addScript('view/javascript/summernote/opencart.js');
        $this->document->addStyle('view/javascript/summernote/summernote.css');
        $this->document->addScript('view/javascript/octemplates/bootstrap-notify/bootstrap-notify.min.js');
        $this->document->addScript('view/javascript/octemplates/oct_main.js');
        $this->document->addStyle('view/stylesheet/oct_deals.css');
        $this->document->setTitle($this->language->get('heading_title'));
        $this->load->model('setting/setting');
        $this->load->model('localisation/language');
        $this->load->model('octemplates/module/oct_stock_notifier');
        $oct_stock_notifier_info = $this->model_setting_setting->getSetting('oct_stock_notifier');
        if (!$oct_stock_notifier_info) {
            $this->response->redirect($this->url->link('octemplates/module/oct_stock_notifier/install', 'user_token=' . $this->session->data['user_token'], true));
        }
        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validate()) {
            $this->model_setting_setting->editSetting('oct_stock_notifier', $this->request->post);
            if (isset($this->request->post['oct_stock_notifier_status']) && $this->request->post['oct_stock_notifier_status'] == "on") {
                $this->addEvent();
            } else {
                $this->deleteEvent();
            }
            $this->session->data['success'] = $this->language->get('text_success');
            $this->response->redirect($this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'] . '&type=module', true));
        }
        $data['heading_title'] = $this->language->get('heading_title');
        if (isset($this->error['warning'])) {
            $data['error_warning'] = $this->error['warning'];
        } else {
            $data['error_warning'] = '';
        }
        if (isset($this->session->data['success'])) {
            $data['success'] = $this->session->data['success'];
            unset($this->session->data['success']);
        } else {
            $data['success'] = '';
        }
        $url = '';
        if (isset($this->request->get['filter_email'])) {
            $url .= '&filter_email=' . $this->request->get['filter_email'];
        }
        if (isset($this->request->get['filter_product'])) {
            $url .= '&filter_product=' . $this->request->get['filter_product'];
        }
        if (isset($this->request->get['filter_phone'])) {
            $url .= '&filter_phone=' . $this->request->get['filter_phone'];
        }
        if (isset($this->request->get['filter_status'])) {
            $url .= '&filter_status=' . $this->request->get['filter_status'];
        }
        if (isset($this->request->get['filter_email']) || isset($this->request->get['filter_product']) || isset($this->request->get['filter_phone']) || isset($this->request->get['filter_status'])) {
            $url .= '&tab=subscribers';
        }
        $filter_email = isset($this->request->get['filter_email']) ? $this->request->get['filter_email'] : null;
        $filter_product = isset($this->request->get['filter_product']) ? $this->request->get['filter_product'] : null;
        $filter_phone = isset($this->request->get['filter_phone']) ? $this->request->get['filter_phone'] : null;
        $filter_status = isset($this->request->get['filter_status']) ? $this->request->get['filter_status'] : null;
        // Breadcrumbs
        $data['breadcrumbs'] = array();
        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('text_home'),
            'href' => $this->url->link('common/dashboard', 'user_token=' . $this->session->data['user_token'], true)
        );
        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('heading_title'),
            'href' => $this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'] . $url, true)
        );
        $data['action'] = $this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'], true);
        $data['cancel'] = $this->url->link('common/dashboard', 'user_token=' . $this->session->data['user_token'], true);
        $data['user_token'] = $this->session->data['user_token'];
        $data['languages'] = $this->model_localisation_language->getLanguages();
        if (isset($this->request->post['oct_stock_notifier_status'])) {
            $data['oct_stock_notifier_status'] = $this->request->post['oct_stock_notifier_status'];
        } else {
            $data['oct_stock_notifier_status'] = $this->config->get('oct_stock_notifier_status');
        }
        if (isset($this->request->post['oct_stock_notifier_data'])) {
            $data['oct_stock_notifier_data'] = $this->request->post['oct_stock_notifier_data'];
        } else {
            $data['oct_stock_notifier_data'] = $this->config->get('oct_stock_notifier_data');
        }
        if (isset($data['oct_stock_notifier_data']['cron_secret']) && $data['oct_stock_notifier_data']['cron_secret']) {
            $site_link = $this->request->server['HTTPS'] ? HTTP_CATALOG : HTTPS_CATALOG;
            $data['cron_url'] = $site_link . "index.php?route=octemplates/module/oct_stock_notifier/cron&cron_secret=" . $data['oct_stock_notifier_data']['cron_secret'];
        }
        $filter_data = array(
            'filter_email' => $filter_email,
            'filter_product' => $filter_product,
            'filter_phone' => $filter_phone,
            'filter_status' => $filter_status
        );
        $data['filter_email'] = $filter_email;
        $data['filter_product'] = $filter_product;
        $data['filter_phone'] = $filter_phone;
        $data['filter_status'] = $filter_status;
        $total_subscribers = $this->model_octemplates_module_oct_stock_notifier->getTotalSubscribers($filter_data);
        $start = isset($this->request->get['page']) ? ($this->request->get['page'] - 1) * 20 : 0;
        $filter_data['start'] = $start;
        $filter_data['limit'] = 20;
        $subscribers = $this->model_octemplates_module_oct_stock_notifier->getSubscribers($filter_data);
        foreach ($subscribers as &$subscriber) {
            $product_id = $subscriber['product_id'];
            $customer_id = $subscriber['customer_id'];
            $user_link = false;
            $product_link = $this->url->link('catalog/product/edit', 'user_token=' . $this->session->data['user_token'] . '&product_id=' . (int)$product_id, true);
            if(!empty($customer_id)) {
                $user_link = $this->url->link('customer/customer/edit', 'user_token=' . $this->session->data['user_token'] . '&customer_id=' . (int)$customer_id, true);
            }
            $subscriber['product_link'] = $product_link;
            $subscriber['user_link'] = $user_link;
        }
        $data['subscribers'] = $subscribers;
        $current_page = (isset($this->request->get['page']) ? (int)$this->request->get['page'] : 1);
        $start_item = (($current_page - 1) * 20) + 1;
        $end_item = ($current_page * 20 < $total_subscribers) ? $current_page * 20 : $total_subscribers;
        $total_pages = ceil($total_subscribers / 20);
        $data['results'] = sprintf($this->language->get('text_pagination'), $start_item, $end_item, $total_subscribers, $total_pages);
        $pagination = new Pagination();
        $pagination->total = $total_subscribers;
        $pagination->page = $start / 20 + 1;
        $pagination->limit = 20;
        $pagination->url = $this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'] . $url . '&page={page}&tab=subscribers', true);
        $data['pagination'] = $pagination->render();
        $data['base'] = $this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'] . '&tab=subscribers', true);
        $data['error_message'] = array();
        if (!empty($this->error['oct_stock_notifier_data_subject'])) {
			$data['error_message']['subject'] = $this->error['oct_stock_notifier_data_subject'];
		} 
        
        if (!empty($this->error['oct_stock_notifier_data_message'])) {
            $data['error_message']['message'] = $this->error['oct_stock_notifier_data_message'];
        }
        if (!empty($this->error['email'])) {
            $data['error_message']['email'] = $this->error['email'];
        }
        $data['header'] = $this->load->controller('common/header');
        $data['column_left'] = $this->load->controller('common/column_left');
        $data['footer'] = $this->load->controller('common/footer');
        $this->response->setOutput($this->load->view('octemplates/module/oct_stock_notifier', $data));
    }
    public function deleteSelected() {
        $this->load->language('octemplates/module/oct_stock_notifier');
        $json = [];
        $this->load->model('octemplates/module/oct_stock_notifier');
        $info = $this->model_octemplates_module_oct_stock_notifier->checkSubscriber((int) $this->request->get['delete']);
        if ($info) {
            $this->model_octemplates_module_oct_stock_notifier->deleteSubscriber((int) $this->request->get['delete']);
            $this->session->data['success'] = $this->language->get('text_success_deleted');
        }
        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }
    public function notify(&$route, &$data, &$output) {
        $notify_on_edit = $this->config->get('oct_stock_notifier_data');
        if ($this->config->get('oct_stock_notifier_status') && (isset($notify_on_edit['notify_on_edit']) && $notify_on_edit['notify_on_edit'])) {
            $this->load->language('octemplates/module/oct_stock_notifier');
            $this->load->model('octemplates/module/oct_stock_notifier');
            $this->load->model('catalog/product');
            $product_id = $data[0];
            $site_link = $this->request->server['HTTPS'] ? HTTP_CATALOG : HTTPS_CATALOG;
            $subscribers = $this->model_octemplates_module_oct_stock_notifier->getSubscribersByProductId((int) $product_id);
            if ($subscribers && $data[1]['quantity'] > 0) {
                $product_info = $this->model_catalog_product->getProduct((int) $product_id);
                $product_info['name'] = trim($product_info['name']);
                foreach ($subscribers as $subscriber) {
                    if (!empty($subscriber['email'])) {
                        $email_data = array();
                        $email_data['email']        = $subscriber['email'];
                        $email_data['product_name'] = isset($data[1]['product_description'][$subscriber['language_id']]['name']) ? $data[1]['product_description'][$subscriber['language_id']]['name'] :   $product_info['name'];
                        $email_data['product_id']   = $product_info['product_id'];
                        $email_data['store_name']   = $this->config->get('config_name');
                        $email_data['product_link'] = $site_link . 'index.php?route=product/product&product_id=' . (int)$product_info['product_id'];
                        $email_data['type']         = 0;
                        $module_data                = $this->config->get('oct_stock_notifier_data');
                        if (isset($module_data['custom_message']) && $module_data['custom_message'] == "on") {
                            $email_data['subject']  = $module_data['subject'][$subscriber['language_id']];
                            $email_data['message']  = $module_data['message'][$subscriber['language_id']];
                            $email_data['type']     = 1;
                            $this->convertHtmlMailData($email_data);
                        } else {
                            $email_data['subject'] = sprintf($this->language->get('mail_subject'), html_entity_decode($this->config->get('config_name'), ENT_QUOTES, 'UTF-8'), $product_info['name']);
                        }
                        $this->sendMail($email_data);
                        $this->model_octemplates_module_oct_stock_notifier->updateSubscriptionStatus((int) $subscriber['subscription_id']);
                    }
                }
            }
        }    
    }
    private function convertHtmlMailData(&$data) {
        $data = str_replace(
            array(
                '[store]',
                '[product_name]',
                '[product_link]'
            ),
            array(
                $data['store_name'],
                $data['product_name'],
                $data['product_link']
            ),
            $data
        );
        return $data;
    }
    private function sendMail($data) {
        $this->load->language('octemplates/module/oct_stock_notifier');
        $site_link = $this->request->server['HTTPS'] ? HTTP_CATALOG : HTTPS_CATALOG;
        $store_name = $this->config->get('config_name');
        $message = sprintf($this->language->get('mail_welcome'), html_entity_decode($store_name, ENT_QUOTES, 'UTF-8')) . "<br><br>";
        $message .= sprintf($this->language->get('mail_body'), $data['product_name'], $site_link . 'index.php?route=product/product&product_id=' . (int)$data['product_id']) . "<br><br>";
        $message .= html_entity_decode($store_name, ENT_QUOTES, 'UTF-8');
        $mail                 = new Mail($this->config->get('config_mail_engine'));
        $mail->protocol      = $this->config->get('config_mail_protocol');
        $mail->parameter     = $this->config->get('config_mail_parameter');
        $mail->smtp_hostname = $this->config->get('config_mail_smtp_hostname');
        $mail->smtp_username = $this->config->get('config_mail_smtp_username');
        $mail->smtp_password = html_entity_decode($this->config->get('config_mail_smtp_password'), ENT_QUOTES, 'UTF-8');
        $mail->smtp_port     = $this->config->get('config_mail_smtp_port');
        $mail->smtp_timeout  = $this->config->get('config_mail_smtp_timeout');
        $mail->setTo($data['email']);
        $mail->setFrom($this->config->get('config_email'));
        $mail->setSender(html_entity_decode($store_name, ENT_QUOTES, 'UTF-8'));
        $mail->setSubject($data['subject']);
        $mail->setHtml($data['type'] ? html_entity_decode($data['message'], ENT_QUOTES, 'UTF-8') : $message);
        $mail->send();
    }
    public function deleteAllSelected() {
        $this->load->language('octemplates/module/oct_stock_notifier');
        $json = [];
        $this->load->model('octemplates/module/oct_stock_notifier');
        if (isset($this->request->request['selected'])) {
            foreach ($this->request->request['selected'] as $subscription_id) {
                $info = $this->model_octemplates_module_oct_stock_notifier->checkSubscriber((int) $subscription_id);
                if ($info) {
                    $this->model_octemplates_module_oct_stock_notifier->deleteSubscriber((int) $subscription_id);
                    $this->session->data['success'] = $this->language->get('text_success_deleted');
                }
            }
        }
        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }
    public function addEvent() {
        $this->load->model('setting/event');
        if ($this->model_setting_event->getEventByCode('octemplates-deals-stock-notifier')) {
            return;
        }
        $this->deleteEvent();
        $events = [
            [
                'code' => 'octemplates-deals-stock-notifier',
                'trigger' => 'admin/model/catalog/product/editProduct/after',
                'action' => 'octemplates/module/oct_stock_notifier/notify'
            ]
        ];
        foreach ($events as $event) {
            if (!$this->model_setting_event->getEventByCode($event['code'])) {
                $this->model_setting_event->addEvent($event['code'], $event['trigger'], $event['action'], 1, 550);
            }
        }
	}
	public function deleteEvent() {
        $this->load->model('setting/event');
        $eventCodes = [
            'octemplates-deals-stock-notifier'
        ];
        foreach ($eventCodes as $code) {
            if ($this->model_setting_event->getEventByCode($code)) {
                $this->model_setting_event->deleteEventByCode($code);
            }
        }
	}
    public function install() {
        $this->load->language('octemplates/module/oct_stock_notifier');
        $this->load->model('setting/setting');
        $this->load->model('user/user_group');
        $this->load->model('octemplates/module/oct_stock_notifier');
        $this->model_octemplates_module_oct_stock_notifier->install();
        $this->addEvent();
        $this->model_user_user_group->addPermission($this->user->getGroupId(), 'access', 'octemplates/module/oct_stock_notifier');
        $this->model_user_user_group->addPermission($this->user->getGroupId(), 'modify', 'octemplates/module/oct_stock_notifier');
        $this->model_setting_setting->editSetting('oct_stock_notifier', [
            'oct_stock_notifier_status' => '1',
            'oct_stock_notifier_data' => [
                'email' => $this->config->get('config_email'),
                'admin_alert' => 1,
                'cron_secret' => '',
                'name' => '2',
                'phone' => '2',
                'notify_on_edit' => 1,
                'custom_message' => 0,
                'mask' => '+38 (999) 999-99-99'
            ]
        ]);
        $this->session->data['success'] = $this->language->get('text_success_install');
        $this->response->redirect($this->url->link('octemplates/module/oct_stock_notifier', 'user_token=' . $this->session->data['user_token'], true));
    }
    public function uninstall() {
        $this->load->model('setting/setting');
        $this->load->model('user/user_group');
        $this->load->model('octemplates/module/oct_stock_notifier');
        $this->model_octemplates_module_oct_stock_notifier->uninstall();
        $this->model_user_user_group->removePermission($this->user->getGroupId(), 'access', 'octemplates/module/oct_stock_notifier');
        $this->model_user_user_group->removePermission($this->user->getGroupId(), 'modify', 'octemplates/module/oct_stock_notifier');
        $this->model_setting_setting->deleteSetting('oct_stock_notifier');
        $this->deleteEvent();
        $this->response->redirect($this->url->link('common/dashboard', 'user_token=' . $this->session->data['user_token'], true));
    }    
    protected function validate() {
        if (!$this->user->hasPermission('modify', 'octemplates/module/oct_stock_notifier')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }
        foreach ($this->request->post['oct_stock_notifier_data'] as $key => $field) {
            if ($key === "email" && empty($field)) {
                $this->error['warning'] = $this->language->get('error_email');
                $this->error['email'] = $this->language->get('error_email');
            }
        }
        if (isset($this->request->post['oct_stock_notifier_data']['custom_message'])) {
            foreach ($this->request->post['oct_stock_notifier_data']['subject'] as $language_id=>$value) {
                if (!$value) {
                    $this->error['oct_stock_notifier_data_subject'][$language_id] = $this->language->get('error_subject_empty');
                    $this->error['warning'] = $this->language->get('text_warning');
                }
            }        
            
            foreach ($this->request->post['oct_stock_notifier_data']['message'] as $language_id=>$value) {
                if (!$value || strlen($value) < 30) {
                    $this->error['oct_stock_notifier_data_message'][$language_id] = $this->language->get('error_message_empty');
                    $this->error['warning'] = $this->language->get('text_warning');
                }
            }
        }
        return !$this->error;
    }
}