<?php
/**
 * @property App_Service_Shipping_Ups_Response $_response
 */
class App_Service_Shipping_Ups extends App_Service_Shipping_Abstract
{
    protected $_xml;

    /** @var string */
    protected $_serviceLocation;

    function __construct($options = array())
    {
        parent::__construct($options);
        $this->_serviceLocation = ($this->getConfig()->testMode)
            ? $this->getConfig()->locationTest : $this->getConfig()->location;
        return $this;
    }

    public function getRate()
    {
        return $this->_getServiceResponse();
    }

    protected function _getServiceResponse()
    {
        if (null == $this->_response->getData()) {
            if (true === ($errors = $this->_validateRequiredRateFields())) {
                try {
                    $this->_prepareXml();
                    if (!($serviceResponse = $this->_callService()) instanceof Qs_Exception) {
                        $this->_response->prepareServiceResponse($serviceResponse);
                    } else {
                        $this->_response->setIsSuccess(false)->setData(array(
                            'errorCode' => self::ERROR_SERVICE_CONNECTION,
                            'errorText' => sprintf(
                                $this->_errorMap[self::ERROR_SERVICE_CONNECTION],
                                $this->getServiceName()
                            )
                        ));
                    }
                } catch (App_Service_Shipping_Ups_Exception $e) {
                    $this->_response->setIsSuccess(false)->setData(array(
                        'errorCode' => $e->getCode(),
                        'errorText' => $e->getMessage()
                    ));
                }
            } else {
                $this->_response->setIsSuccess(false)->setData(array(
                    'errorCode' => self::ERROR_VALIDATE_REQUIRED_PARAMS,
                    'errorText' => implode('<br />', $errors)
                ));
            }
        }
        return $this->_response;
    }

    /**
     * Documentation search there http://www.ups.com/content/us/en/resources/techsupport/integrating_apis.html
     *
     * @return App_Service_Shipping_Ups
     */
    protected function _prepareXml()
    {
        $authWriter = new SimpleXMLElement('<AccessRequest xml:lang="en-US" />');

        $authWriter->addChild('AccessLicenseNumber', $this->getConfig()->accessKey);
        $authWriter->addChild('UserId', $this->getConfig()->userName);
        $authWriter->addChild('Password', $this->getConfig()->password);

        $mainWriter = new SimpleXMLElement('<RatingServiceSelectionRequest xml:lang="en-US" />');

        $requestWriter = $mainWriter->addChild('Request');

        $transactionReferenceWriter = $requestWriter->addChild('TransactionReference');
        $transactionReferenceWriter->addChild('CustomerContext', 'Rate Request');
        $transactionReferenceWriter->addChild('XpciVersion', $this->getConfig()->version);

        $requestWriter->addChild('RequestAction', $this->getConfig()->requestAction);
        $requestWriter->addChild('RequestOption', $this->getConfig()->requestOption);

        $pickupTypeWriter = $mainWriter->addChild('PickupType');
        $pickupTypeWriter->addChild('Code', $this->getConfig()->pickupType);

        if ($this->getOption('shipperCountry') == self::COUNTRY_CODE_US) {
            $customerClassificationWriter = $mainWriter->addChild('CustomerClassification');
            $customerClassificationWriter->addChild('Code', $this->getConfig()->classification);
        }

        $shipmentWriter = $mainWriter->addChild('Shipment');

        $shipperWriter = $shipmentWriter->addChild('Shipper');
        $shipperAddressWriter = $shipperWriter->addChild('Address');

        if ($this->getOption('shipperCity')) {
            $shipperAddressWriter->addChild('City', $this->getOption('shipperCity'));
        }

        $shipperAddressWriter->addChild('StateProvinceCode', $this->getOption('shipperState'));
        $shipperAddressWriter->addChild('CountryCode', $this->getOption('shipperCountry'));
        $shipperAddressWriter->addChild('PostalCode', $this->getOption('shipperPostalCode'));

        $shipToWriter = $shipmentWriter->addChild('ShipTo');
        $shipToAddressWriter = $shipToWriter->addChild('Address');

        if ($this->getOption('shipToCity')) {
            $shipToAddressWriter->addChild('City', $this->getOption('shipToCity'));
        }

        $shipToAddressWriter->addChild('StateProvinceCode', $this->getOption('shipToState'));
        $shipToAddressWriter->addChild('CountryCode', $this->getOption('shipToCountry'));
        $shipToAddressWriter->addChild('PostalCode', $this->getOption('shipToPostalCode'));

        if ($this->getOption('addressType') == self::ADDRESS_TYPE_RESIDENTIAL) {
            $shipToAddressWriter->addChild('ResidentialAddressIndicator');
        }

        $shipFromWriter = $shipmentWriter->addChild('ShipFrom');
        $shipFromAddressWriter = $shipFromWriter->addChild('Address');

        if ($this->getOption('shipperCity')) {
            $shipFromAddressWriter->addChild('City', $this->getOption('shipperCity'));
        }

        $shipFromAddressWriter->addChild('StateProvinceCode', $this->getOption('shipperState'));
        $shipFromAddressWriter->addChild('CountryCode', $this->getOption('shipperCountry'));
        $shipFromAddressWriter->addChild('PostalCode', $this->getOption('shipperPostalCode'));

        $service = $shipmentWriter->addChild('Service');
        $service->addChild('Code', $this->getOption('serviceCode'));

        foreach ($this->_getPackagesInformation() as $packageInformation) {
            $packageWriter = $shipmentWriter->addChild('Package');
            $packagingTypeWriter = $packageWriter->addChild('PackagingType');
            $packagingTypeWriter->addChild('Code', $this->getConfig()->packagingType);

            /* Required if Packaging Type in not Letter, Express Tube,
             * or Express Box; Required for GB to GB and Poland to Poland shipments
             *
             *
             * $dimensionsWriter = $packageWriter->addChild('Dimensions');
             * $unitOfMeasurementWriter = $dimensionsWriter->addChild('UnitOfMeasurement');
             *
             * $unitOfMeasurementWriter->addChild('Code', $this->getConfig()->unitOfMeasurementCode);
             *
             * $dimensionsWriter->addChild('Description', $this->getOption('dimensionsDescription'));
             *
             * //Length of the package used to determine dimensional weight
             * $dimensionsWriter->addChild('Length', $this->getOption('dimensionsLength'));
             *
             * //Width of the package used to determine dimensional weight
             * $dimensionsWriter->addChild('Width', $this->getOption('dimensionsWidth'));
             *
             * //Height of the package used to determine dimensional weight
             * $dimensionsWriter->addChild('Height', $this->getOption('dimensionsHeight'));
             *
             */

            $packageWeightWriter = $packageWriter->addChild('PackageWeight');
            $unitOfMeasurementWriter = $packageWeightWriter->addChild('UnitOfMeasurement');
            $unitOfMeasurementWriter->addChild('Code', $this->getConfig()->unitOfMeasurementCode);

            $packageWeightWriter->addChild('Weight', $this->_prepareWeight($packageInformation['weight']));

            if ($this->getConfig()->insurance) {
                $packageServiceOptionsWriter = $packageWriter->addChild('PackageServiceOptions');
                $insuredValueWriter = $packageServiceOptionsWriter->addChild('InsuredValue');

                $insuredValueWriter->addChild('CurrencyCode', $this->getOption('currencyCode'));
                $insuredValueWriter->addChild('MonetaryValue', $this->getOption('cartTotal'));
            }

        }
        $this->_xml = $authWriter->asXML() . $mainWriter->asXML();
        return $this;
    }

    protected function _callService()
    {
        try {
            $ch = curl_init($this->_serviceLocation);

            curl_setopt($ch, CURLOPT_HEADER, $this->getConfig()->CURLOPT_HEADER);
            curl_setopt($ch, CURLOPT_POST, $this->getConfig()->CURLOPT_POST);
            curl_setopt($ch, CURLOPT_TIMEOUT, $this->getConfig()->CURLOPT_TIMEOUT);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, $this->getConfig()->CURLOPT_RETURNTRANSFER);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->getConfig()->CURLOPT_SSL_VERIFYPEER);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $this->_xml);

            $response = curl_exec($ch);
            if (curl_getinfo($ch, CURLINFO_HTTP_CODE) != self::HTTP_CODE_OK) {
                $response = new App_Service_Shipping_Ups_Exception();
            }
            curl_close($ch);
        } catch (Qs_Exception $e) {
            return $e;
        }

        return $response;
    }
}