<?php

/**
 * @method App_Service_Payment_PayPalExpressCheckout getPayment()
 */

class App_ECommerce_Checkout_Adapter_Payment_PayPalExpressCheckout extends App_ECommerce_Checkout_Adapter_Payment_Abstract
{
    const MSG_ERROR_VALIDATE = 'msgErrorValidate';

    protected $_paymentService = 'PayPalExpressCheckout';
    protected $_errors;
    protected $_errorMessages = array(
        self::MSG_ERROR_VALIDATE => 'Error validating payment, payment not completed!'
    );

    protected function _prepareData($orderData, $cartData)
    {
        $data = array();

        if (!empty($orderData)) {
            $subtotal = Zend_Locale_Math::Sub($orderData['subtotal'], $orderData['promo'], 4);
            $subtotal = Zend_Locale_Math::Sub($subtotal, $orderData['giftCard'], 4);

            $returnUrl = BASE_URL . '/' . CURRENT_PAGE . '?type=' . $this->_paymentService
                       . '&id=' . $orderData['invoice'] . '&action=';

            $data = array(
                'invoice'   => $orderData['invoice'],
                'amount'    => Zend_Locale_Math::round($orderData['total'], 2),
                'subtotal'  => Zend_Locale_Math::round($subtotal, 2),
                'tax'       => Zend_Locale_Math::round($orderData['tax'], 2),
                'promo'     => Zend_Locale_Math::round($orderData['promo'], 2),
                'giftCard'  => Zend_Locale_Math::round($orderData['giftCard'], 2),
                'itemList'  => array(),
                'cancelUrl' => $returnUrl . 'cancelOrder',
                'returnUrl' => $returnUrl . 'completeOrder',
                'custom'    => array(
                    'ADDROVERRIDE' => true,
                    'ALLOWNOTE'    => false,

                )
            );

            if ($orderData['shippingCity'] && $orderData['shippingAddress']) {
                $data['custom'] = $data['custom'] + [
                    'PAYMENTREQUEST_0_SHIPTOSTREET'      => $orderData['shippingAddress'] ? $orderData['shippingAddress'] : '',
                    'PAYMENTREQUEST_0_SHIPTOCITY'        => $orderData['shippingCity'] ? : $orderData['shippingCity'],
                    'PAYMENTREQUEST_0_SHIPTOSTATE'       => $orderData['shippingState'] ? $orderData['shippingState'] : '',
                    'PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE' => $orderData['shippingZip'] ? 'US' : '',
                    'PAYMENTREQUEST_0_SHIPTOZIP'         => $orderData['shippingZip'] ? $orderData['shippingZip'] : ''
                ];
            }

            $data['shipping'] = Zend_Locale_Math::round($orderData['shippingRate'], 2);
            $data['handling'] = Zend_Locale_Math::round($orderData['shippingHandling'], 2);
        }

        foreach ($cartData as $cartItem) {
            $data['itemList'][] = array(
                'L_PAYMENTREQUEST_0_AMT'  => Zend_Locale_Math::round($cartItem['price'], 2),
                'L_PAYMENTREQUEST_0_NAME' => $cartItem['title'],
                'L_PAYMENTREQUEST_0_QTY'  => $cartItem['quantity'],
            );
            if (!empty($cartItem['promoValuePrice'])) {
                $data['promo'] = Zend_Locale_Math::round($cartItem['promoValuePrice'], 2);
            }
        }

        return $data;
    }

    public function getErrors()
    {
        if (empty($this->_errors)) {
            $paymentData = $this->getProcessResponse()->getData();
            $error = $paymentData['L_LONGMESSAGE0'];
        } else {
            $error = $this->_errors;
            $this->_errors = null;
        }
        return $error;
    }

    protected function _setCustomErrors($errorMap)
    {
        $this->_errors = $this->_errorMessages[$errorMap];
        return $this;
    }

    protected function _refundTransaction($id)
    {
        $this->process(array('transactionId' => $id), App_Service_Payment_PayPalExpressCheckout::REFUND_TRANSACTION);
        return $this;
    }

    public function verifyOrder()
    {
        $this->process(
            array('token' => Qs_Request::getGetValue('token')),
            App_Service_Payment_PayPalExpressCheckout::GET_EXPRESS_CHECKOUT_DETAILS_TYPE
        );

        if (!$this->getProcessResponse()->isSuccess()) {
            return false;
        }

        $result = $this->getPayment()->verifyOrder(
            Qs_Request::getRequestValue('id'),
            $this->getProcessResponse()->getData('AMT')
        );
        if (!$result) {
            $this->_setCustomErrors(self::MSG_ERROR_VALIDATE);
            return false;
        }

        $paymentResponse = $this->getProcessResponse();

        $data = array(
            'token'    => Qs_Request::getGetValue('token'),
            'amount'   => $paymentResponse->getData('PAYMENTREQUEST_0_AMT'),
            'currency' => $paymentResponse->getData('PAYMENTREQUEST_0_CURRENCYCODE'),
            'payerId'  => $paymentResponse->getData('PAYERID')
        );
        $this->process($data, App_Service_Payment_PayPalExpressCheckout::DO_EXPRESS_CHECKOUT_PAYMENT_TYPE);

        if ($this->getProcessResponse()->isSuccess()) {
            $this->getPayment()->updateOrder(Qs_Request::getRequestValue('id'));
            return true;
        }

        $this->_refundTransaction($this->getProcessResponse()->getData('TRANSACTIONID'));
        return false;
    }
}