Orders::invoice PHP Method

    public function invoice()
    {
        $this->output->enable_profiler(FALSE);
        $action = $this->uri->rsegment('3');
        $this->template->setStyleTag('css/bootstrap.min.css', 'bootstrap-css', '1');
        $this->template->setStyleTag('css/fonts.css', 'fonts-css', '2');
        $this->load->model('Image_tool_model');
        $data['invoice_logo'] = $this->Image_tool_model->resize($this->config->item('site_logo'));
        $invoice_info = $this->Orders_model->getInvoice($this->uri->rsegment('4'));
        $data['order_id'] = $invoice_info['order_id'];
        $data['invoice_no'] = $invoice_info['invoice_prefix'] . $invoice_info['invoice_no'];
        $data['customer_id'] = $invoice_info['customer_id'];
        $data['first_name'] = $invoice_info['first_name'];
        $data['last_name'] = $invoice_info['last_name'];
        $data['email'] = $invoice_info['email'];
        $data['telephone'] = $invoice_info['telephone'];
        $data['date_added'] = mdate('%F %d, %Y', strtotime($invoice_info['date_added']));
        $data['invoice_date'] = mdate('%F %d, %Y', strtotime($invoice_info['invoice_date']));
        $data['date_modified'] = mdate('%d %M %y', strtotime($invoice_info['date_modified']));
        $data['order_time'] = mdate('%H:%i', strtotime($invoice_info['order_time']));
        $data['order_type'] = $invoice_info['order_type'] === '1' ? $this->lang->line('text_delivery') : $this->lang->line('text_collection');
        $data['comment'] = $invoice_info['comment'];
        $data['check_order_type'] = $invoice_info['order_type'];
        if ($payment = $this->extension->getPayment($invoice_info['payment'])) {
            if ($payment['name'] === 'paypal_express') {
                $this->load->model('paypal_express/Paypal_model');
                $data['paypal_details'] = isset($this->Paypal_model) ? $this->Paypal_model->getPaypalDetails($invoice_info['order_id'], $invoice_info['customer_id']) : '';
            }
            $data['payment'] = !empty($payment['ext_data']['title']) ? $payment['ext_data']['title'] : $payment['title'];
        } else {
            $data['payment'] = 'No Payment';
        }
        $this->load->library('country');
        $data['location_name'] = $data['location_address'] = '';
        if (!empty($invoice_info['location_id'])) {
            $location_address = $this->Locations_model->getAddress($invoice_info['location_id']);
            if ($location_address) {
                $data['location_name'] = $location_address['location_name'];
                $data['location_address'] = $this->country->addressFormat($location_address);
            }
        }
        $data['customer_address'] = '';
        if (!empty($invoice_info['customer_id'])) {
            $customer_address = $this->Addresses_model->getAddress($invoice_info['customer_id'], $invoice_info['address_id']);
            $data['customer_address'] = $this->country->addressFormat($customer_address);
        } else {
            if (!empty($invoice_info['address_id'])) {
                $customer_address = $this->Addresses_model->getGuestAddress($invoice_info['address_id']);
                $data['customer_address'] = $this->country->addressFormat($customer_address);
            }
        }
        $data['cart_items'] = array();
        $cart_items = $this->Orders_model->getOrderMenus($invoice_info['order_id']);
        $menu_options = $this->Orders_model->getOrderMenuOptions($invoice_info['order_id']);
        foreach ($cart_items as $cart_item) {
            $option_data = array();
            if (!empty($menu_options)) {
                foreach ($menu_options as $menu_option) {
                    if ($cart_item['order_menu_id'] === $menu_option['order_menu_id']) {
                        $option_data[] = $menu_option['order_option_name'] . $this->lang->line('text_equals') . $this->currency->format($menu_option['order_option_price']);
                    }
                }
            }
            $data['cart_items'][] = array('id' => $cart_item['menu_id'], 'name' => $cart_item['name'], 'qty' => $cart_item['quantity'], 'price' => $this->currency->format($cart_item['price']), 'subtotal' => $this->currency->format($cart_item['subtotal']), 'comment' => $cart_item['comment'], 'options' => implode(', ', $option_data));
        }
        $data['totals'] = array();
        $order_totals = $this->Orders_model->getOrderTotals($invoice_info['order_id']);
        foreach ($order_totals as $name => $total) {
            if ($total['code'] == 'delivery' and $invoice_info['order_type'] === '2') {
                continue;
            }
            $data['totals'][] = array('code' => $total['code'], 'title' => htmlspecialchars_decode($total['title']), 'value' => $this->currency->format($total['value']), 'priority' => $total['priority']);
        }
        $data['order_total'] = $this->currency->format($invoice_info['order_total']);
        if ($action === 'view') {
            $this->load->view($this->config->item(ADMINDIR, 'default_themes') . 'orders_invoice', $data);
        }
    }