public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $order = $observer->getEvent()->getOrder();

        //verify pagseguro transaction
        if ($order->getStatus() == 'pagseguro_iniciado') {
            $orderId = $order->getId();
            $environment = $this->_scopeConfig->getValue('payment/pagseguro/environment');
            
            //save order in pagseguro_orders table
            $this->saveOrderAndEnvironment($orderId, $environment);

            //$this->getEnvironmentName($environment);
            $this->updateSalesOrderGridEnvironment($orderId, $environment);
        }

        return $this;
    }