OpenCart 🇺🇦

if (!$this->user->hasPermission('modify', 'sale/customer')) {
	$this->error['warning'] = $this->language->get('error_permission');
}

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');
}

$customer_info = $this->model_sale_customer->getCustomerByEmail($this->request->post['email']);

if (!isset($this->request->get['customer_id'])) {
	if ($customer_info) {
		$this->error['warning'] = $this->language->get('error_exists');
	}
} else {
	if ($customer_info && ($this->request->get['customer_id'] != $customer_info['customer_id'])) {
		$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');
}

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

if (isset($this->request->post['address'])) {
	foreach ($this->request->post['address'] as $key => $value) {
		if ((utf8_strlen($value['firstname']) < 1) || (utf8_strlen($value['firstname']) > 32)) {
			$this->error['address_firstname'][$key] = $this->language->get('error_firstname');
		}

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

		if ((utf8_strlen($value['address_1']) < 3) || (utf8_strlen($value['address_1']) > 128)) {
			$this->error['address_address_1'][$key] = $this->language->get('error_address_1');
		}

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

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

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

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

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

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

		if ($value['country_id'] == '') {
			$this->error['address_country'][$key] = $this->language->get('error_country');
		}

		if (!isset($value['zone_id']) || $value['zone_id'] == '') {
			$this->error['address_zone'][$key] = $this->language->get('error_zone');
		}	
	}
}

if ($this->error && !isset($this->error['warning'])) {
	$this->error['warning'] = $this->language->get('error_warning');
}

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