OpenCart 🇺🇦

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

if (!$this->user->hasPermission('modify', 'payment/amazon_checkout')) {
	$this->errors[] = $this->language->get('error_permission');
}

if (empty($this->request->post['amazon_checkout_merchant_id'])) {
	$this->errors[] = $this->language->get('error_empty_merchant_id');
}

if (empty($this->request->post['amazon_checkout_access_key'])) {
	$this->errors[] = $this->language->get('error_empty_access_key');
}

if (empty($this->request->post['amazon_checkout_access_secret'])) {
	$this->errors[] = $this->language->get('error_empty_access_secret');
}

switch ($this->request->post['amazon_checkout_marketplace']) {
	case 'uk':
		$currency_code = 'GBP';
		break;

	case 'de':
		$currency_code = 'EUR';
		break;
}

$currency = $this->model_localisation_currency->getCurrency($this->currency->getId($currency_code));

if (empty($currency) || $currency['status'] != '1') {
	$this->errors[] = sprintf($this->language->get('error_curreny'), $currency_code);
}

return empty($this->errors);