public function getTemplateVarsOPC($only_register, $show_authentication)
    {
        $language = $this->context->language;

        $countries = Country::getCountries($this->context->language->id, true);
        $countries_js = [];
        $countriesNeedIDNumber = [];
        $countriesNeedZipCode = [];
        $countriesIsoCode = [];

        foreach ($countries as $country) {
            $countriesIsoCode[$country['id_country']] = $country['iso_code'];
            $countriesNeedIDNumber[$country['id_country']] = $country['need_identification_number'];

            if (! empty($country['zip_code_format'])) {
                $countriesNeedZipCode[$country['id_country']] = $country['zip_code_format'];
            }

            if ($country['contains_states'] == 1 && isset($country['states']) && count($country['states']) > 0) {
                foreach ($country['states'] as $state) {
                    if ($state['active'] == 1) {
                        $countries_js[$country['id_country']][] = [
                            'id' => $state['id_state'],
                            'name' => $state['name'],
                            'iso_code' => $state['iso_code'],
                        ];
                    }
                }
            }
        }

        $newsletter = false;
        if (Module::isInstalled('blocknewsletter')) {
            $newsletter = (int) Module::getInstanceByName('blocknewsletter')->active;
        }

        $is_set_invoice = false;
        if (isset($this->context->cookie->is_set_invoice)) {
            $is_set_invoice = $this->context->cookie->is_set_invoice;
        }

        $date_format_language = $this->dateFormartPHPtoJqueryUI($language->date_format_lite);

        $opc_social_networks = $this->config_vars['OPC_SOCIAL_NETWORKS'];
        $opc_social_networks = Tools::jsonDecode($opc_social_networks);

        $id_country_delivery_default = FieldClass::getDefaultValue('delivery', 'id_country');
        $iso_code_country_delivery_default = Country::getIsoById($id_country_delivery_default);

        $id_country_invoice_default = FieldClass::getDefaultValue('invoice', 'id_country');
        $iso_code_country_invoice_default = Country::getIsoById($id_country_invoice_default);

        $sql_payment_module = 'SELECT * FROM '._DB_PREFIX_.'opc_ship_to_pay';
        $have_ship_to_pay = false;

        //grid steps
        $position_steps = [
            0 => [
                'classes' => ($only_register ? '' : 'col-md-4 col-sm-5').' col-xs-12 col-12',
                'rows' => [
                    0 => [
                        'name_step' => 'customer',
                        'classes' => 'col-xs-12 col-12',
                    ],
                ],
            ],
            1 => [
                'classes' => 'col-md-8 col-sm-7 col-xs-12 col-12',
                'rows' => [
                    0 => [
                        'name_step' => 'carrier',
                        'classes' => 'col-xs-12 col-12 col-md-6',
                    ],
                    1 => [
                        'name_step' => 'payment',
                        'classes' => 'col-xs-12 col-12 '.($this->context->cart->isVirtualCart() ? 'col-md-12' : 'col-md-6'),
                    ],
                    2 => [
                        'name_step' => 'review',
                        'classes' => 'col-xs-12 col-12',
                    ],
                ],
            ],
        ];

        $messageValidate = [
            'errorGlobal' => $this->l('This is not a valid.'),
            'errorIsName' => $this->l('This is not a valid name.'),
            'errorIsEmail' => $this->l('This is not a valid email address.'),
            'errorIsPostCode' => $this->l('This is not a valid post code.'),
            'errorIsAddress' => $this->l('This is not a valid address.'),
            'errorIsCityName' => $this->l('This is not a valid city.'),
            'isMessage' => $this->l('This is not a valid message.'),
            'errorIsDniLite' => $this->l('This is not a valid document identifier.'),
            'errorIsPhoneNumber' => $this->l('This is not a valid phone.'),
            'errorIsPasswd' => $this->l('This is not a valid password. Minimum 5 characters.'),
            'errorisBirthDate' => $this->l('This is not a valid birthdate.'),
            'errorisDate' => $this->l('This is not a valid date.'),
            'badUrl' => $this->l('This is not a valid url.').'ex: http://www.domain.com',
            'badInt' => $this->l('This is not a valid.'),
            'notConfirmed' => $this->l('The values do not match.'),
            'lengthTooLongStart' => $this->l('It is only possible enter'),
            'lengthTooShortStart' => $this->l('The input value is shorter than '),
            'lengthBadEnd' => $this->l('characters.'),
            'requiredField' => $this->l('This is a required field.'),
        ];

        $register_customer = (bool) Tools::getValue('rc', false);
        if (($register_customer == 1 && ! $this->context->customer->isLogged()) || ($show_authentication && ! $this->context->customer->isLogged())) {
            $register_customer = true;
        }

        $templateVars = [
            'messageValidate' => $messageValidate,
            'pts_static_token' => Tools::encrypt('onepagecheckoutps/index'),
            'static_token' => Tools::getToken(false),
            'countries' => $countries_js,
            'countriesNeedIDNumber' => $countriesNeedIDNumber,
            'countriesNeedZipCode' => $countriesNeedZipCode,
            'countriesIsoCode' => $countriesIsoCode,
            'position_steps' => $position_steps,
            'payment_modules_fee' => $this->addModulesExtraFee(),
            'is_virtual_cart' => $this->context->cart->isVirtualCart(),
            'hook_create_account_top' => Hook::exec('displayCustomerAccountFormTop'),
            'hook_create_account_form' => Hook::exec('displayCustomerAccountForm'),
            'have_ship_to_pay' => (int) empty($have_ship_to_pay),
            'opc_social_networks' => $opc_social_networks,
            'newsletter' => $newsletter,
            'is_set_invoice' => $is_set_invoice,
            'register_customer' => $register_customer,
            'OnePageCheckoutPS' => [
                'date_format_language' => $date_format_language,
                'id_country_delivery_default' => $id_country_delivery_default,
                'id_country_invoice_default' => $id_country_invoice_default,
                'iso_code_country_delivery_default' => $iso_code_country_delivery_default,
                'iso_code_country_invoice_default' => $iso_code_country_invoice_default,
                'IS_GUEST' => (bool) $this->context->customer->isGuest(),
                'IS_LOGGED' => (bool) $this->context->customer->isLogged(),
                'iso_code_country_invoice_default' => $iso_code_country_invoice_default,
                'LANG_ISO_ALLOW' => ['es', 'en', 'ca', 'br', 'eu', 'pt', 'eu', 'mx'],
                'ONEPAGECHECKOUTPS_DIR' => $this->onepagecheckoutps_dir,
                'ONEPAGECHECKOUTPS_IMG' => $this->onepagecheckoutps_dir.'views/img/',
                'PRESTASHOP' => [
                    'CONFIGS' => [
                        'PS_TAX_ADDRESS_TYPE' => Configuration::get('PS_TAX_ADDRESS_TYPE'),
                        'PS_GUEST_CHECKOUT_ENABLED' => Configuration::get('PS_GUEST_CHECKOUT_ENABLED'),
                    ],
                ],
                'Msg' => [
                    'there_are' => $this->l('There are'),
                    'there_is' => $this->l('There is'),
                    'error' => $this->l('Error'),
                    'errors' => $this->l('Errors'),
                    'field_required' => $this->l('Required'),
                    'dialog_title' => $this->l('Confirm Order'),
                    'no_payment_modules' => $this->l('There are no payment methods available.'),
                    'validating' => $this->l('Validating, please wait'),
                    'error_zipcode' => $this->l('The Zip / Postal code is invalid'),
                    'error_registered_email' => $this->l('An account is already registered with this e-mail'),
                    'error_registered_email_guest' => $this->l('This email is already registered, you can login or fill form again.'),
                    'delivery_billing_not_equal' => $this->l('Delivery address alias cannot be the same as billing address alias'),
                    'errors_trying_process_order' => $this->l('The following error occurred while trying to process the order'),
                    'agree_terms_and_conditions' => $this->l('You must agree to the terms of service before continuing.'),
                    'agree_privacy_policy' => $this->l('You must agree to the privacy policy before continuing.'),
                    'fields_required_to_process_order' => $this->l('You must complete the required information to process your order.'),
                    'check_fields_highlighted' => $this->l('Check the fields that are highlighted and marked with an asterisk.'),
                    'error_number_format' => $this->l('The format of the number entered is not valid.'),
                    'oops_failed' => $this->l('Oops! Failed'),
                    'continue_with_step_3' => $this->l('Continue with step 3.'),
                    'email_required' => $this->l('Email address is required.'),
                    'email_invalid' => $this->l('Invalid e-mail address.'),
                    'password_required' => $this->l('Password is required.'),
                    'password_too_long' => $this->l('Password is too long.'),
                    'password_invalid' => $this->l('Invalid password.'),
                    'addresses_same' => $this->l('You must select a different address for shipping and billing.'),
                    'create_new_address' => $this->l('Are you sure you wish to add a new delivery address? You can use the current address and modify the information.'),
                    'cart_empty' => $this->l('Your shopping cart is empty. You need to refresh the page to continue.'),
                    'dni_spain_invalid' => $this->l('DNI/CIF/NIF is invalid.'),
                    'payment_method_required' => $this->l('Please select a payment method to proceed.'),
                    'shipping_method_required' => $this->l('Please select a shipping method to proceed.'),
                    'select_pickup_point' => $this->l('To select a pick up point is necessary to complete your information and delivery address in the first step.'),
                    'need_select_pickup_point' => $this->l('You need to select on shipping a pickup point to continue with the purchase.'),
                    'select_date_shipping' => $this->l('Please select a date for shipping.'),
                    'confirm_payment_method' => $this->l('Confirmation payment'),
                    'to_determinate' => $this->l('To determinate'),
                    'login_customer' => $this->l('Login'),
                    'processing_purchase' => $this->l('Processing purchase'),
                ],
            ],
        ];

        return $templateVars;
    }