OpenCart 🇺🇦

if ((utf8_strlen($this->request->post['firstname']) < 1) || (utf8_strlen($this->request->post['firstname']) > 32)) {
	$this->error['firstname'] = $this->language->get('error_firstname');
}

if ((utf8_strlen($this->request->post['lastname']) < 1) || (utf8_strlen($this->request->post['lastname']) > 32)) {
	$this->error['lastname'] = $this->language->get('error_lastname');
}

if ((utf8_strlen($this->request->post['email']) > 96) || !preg_match('/^[^\@]+@.*\.[a-z]{2,6}$/i', $this->request->post['email'])) {
	$this->error['email'] = $this->language->get('error_email');
}

if ($this->model_account_customer->getTotalCustomersByEmail($this->request->post['email'])) {
	$this->error['warning'] = $this->language->get('error_exists');
}

if ((utf8_strlen($this->request->post['telephone']) < 3) || (utf8_strlen($this->request->post['telephone']) > 32)) {
	$this->error['telephone'] = $this->language->get('error_telephone');
}

// Customer Group
$this->load->model('account/customer_group');

if (isset($this->request->post['customer_group_id']) && is_array($this->config->get('config_customer_group_display')) && in_array($this->request->post['customer_group_id'], $this->config->get('config_customer_group_display'))) {
	$customer_group_id = $this->request->post['customer_group_id'];
} else {
	$customer_group_id = $this->config->get('config_customer_group_id');
}

$customer_group = $this->model_account_customer_group->getCustomerGroup($customer_group_id);

if ($customer_group) {	
	// Company ID
	if ($customer_group['company_id_display'] && $customer_group['company_id_required'] && empty($this->request->post['company_id'])) {
		$this->error['company_id'] = $this->language->get('error_company_id');
	}

	// Tax ID 
	if ($customer_group['tax_id_display'] && $customer_group['tax_id_required'] && empty($this->request->post['tax_id'])) {
		$this->error['tax_id'] = $this->language->get('error_tax_id');
	}						
}

if ((utf8_strlen($this->request->post['address_1']) < 3) || (utf8_strlen($this->request->post['address_1']) > 128)) {
	$this->error['address_1'] = $this->language->get('error_address_1');
}

if ((utf8_strlen($this->request->post['city']) < 2) || (utf8_strlen($this->request->post['city']) > 128)) {
	$this->error['city'] = $this->language->get('error_city');
}

$this->load->model('localisation/country');

$country_info = $this->model_localisation_country->getCountry($this->request->post['country_id']);

if ($country_info) {
	if ($country_info['postcode_required'] && (utf8_strlen($this->request->post['postcode']) < 2) || (utf8_strlen($this->request->post['postcode']) > 10)) {
		$this->error['postcode'] = $this->language->get('error_postcode');
	}

	// VAT Validation
	$this->load->helper('vat');

	if ($this->config->get('config_vat') && $this->request->post['tax_id'] && (vat_validation($country_info['iso_code_2'], $this->request->post['tax_id']) == 'invalid')) {
		$this->error['tax_id'] = $this->language->get('error_vat');
	}
}

if ($this->request->post['country_id'] == '') {
	$this->error['country'] = $this->language->get('error_country');
}

if (!isset($this->request->post['zone_id']) || $this->request->post['zone_id'] == '') {
	$this->error['zone'] = $this->language->get('error_zone');
}

if ((utf8_strlen($this->request->post['password']) < 4) || (utf8_strlen($this->request->post['password']) > 20)) {
	$this->error['password'] = $this->language->get('error_password');
}

if ($this->request->post['confirm'] != $this->request->post['password']) {
	$this->error['confirm'] = $this->language->get('error_confirm');
}

if ($this->config->get('config_account_id')) {
	$this->load->model('catalog/information');

	$information_info = $this->model_catalog_information->getInformation($this->config->get('config_account_id'));

	if ($information_info && !isset($this->request->post['agree'])) {
		$this->error['warning'] = sprintf($this->language->get('error_agree'), $information_info['title']);
	}
}

if (!$this->error) {
	return true;
} else {
	return false;
}