package Business::PayPal::SDK;

#$Id: SDK.pm,v 1.7 2005/12/08 18:18:31 jacob Exp $
#
=head1 NAME

Business::PayPal::SDK - An interface to paypals SDK's.

=head1 SYNOPSIS

  use Business::PayPal::SDK;
  my $pp = new Business::PayPal::SDK(
    {
      paypal_apiid => "sdk-seller_api1.sdk.com",
      paypal_apipw => "12345678",
      paypal_cert => "paypal_java_sdk/samples/Cert/sdk-seller.p12",
      paypal_certpw => "password",
      paypal_env => "sandbox",
      java_sdk_dir => "/path/to/paypals/java/sdk",
    }
  );

  my $res = $pp->SetExpressCheckout(
    {
      OrderTotal => '10.00',
      ReturnURL => 'http:://mydomain.com/myreturn',
      CancelURL => 'http:://mydomain.com/mycancel',
    }
  );

  print $res->{token};

=head1 DESCRIPTION

Business::PayPal::SDK is a perl interface to the SDK provided by paypal (http://www.paypal.com/sdk). You can use this module to implement paypal pro and paypal express transactions in perl. On the back end this modules uses Inline::Java to interface directly with the paypals java sdk. Consequently you will need to get a J2SDK and Inline::Java installed.  This was done for 2 reasons. 1) Speed of development, didnt have to deal with all the SOAP stuff. 2) Easier maintanance regarding future changes. That is to say, I only have to make sure I keep this compatiable with paypals SDK, not thier underlying protocol changes.

This document assumes you have an understanding of the java SDK and API provided by PayPal.

All methods take a single hashref as an argument.
All methods return a hashref, or undef if there is an internal failure of some sort. Check $ret->{ack} to see if the call to PayPal was successful. If $ret->{ack} is not 'Success' than you can check the $res->{ErrorCodes}, this will be an hashref with the key being the error code from paypal and the value is the 'getLongMessage' from the error. Check $obj->error for description of failure.

=cut

use strict;
use warnings;

use base qw/Class::Accessor/;
my @REQUIRED = qw/
  paypal_apiid
  paypal_apipw
  paypal_cert
  paypal_certpw
  paypal_env
  java_sdk_dir
/;
my @OTHER = qw/
  jni
  shared_jvm
  paypal
/;
use Data::Dumper;

__PACKAGE__->mk_accessors (@REQUIRED, @OTHER);

our $ERROR = '';
our $VERSION = '0.14';
our $PPCONINFO = undef;

=head1 Public Methods

=head2 new()

All args are pass in as a hash ref.
All the other functions require paypal_apiid, paypal_apipw, payapl_cert, paypal_certpw, paypal_env and java_sdk_dir to be defined.  You can pass them all in the new call, or you can use there accessors. $obj->paypal_apiid.

Additionally, you can use pass jni => 1, or shared_jvm => 1 to have these values passed to Inline::Java. See Inline::Javas docs for more details on JNI and SHARED_JVM.

=cut

sub new {
  my $pkg = shift;
  my $args = shift;

  my $self = {
  };

  my $s = SUPER::new $pkg $self;

  foreach my $ac (@REQUIRED, @OTHER) {
    $s->$ac($args->{$ac}) if ($args->{$ac});
  }

  unless ($s->java_sdk_dir) {
    $s->error("WARNING: java_sdk_dir must be set.");
    return undef;
  }
  return $s;
}

=head2 init_java()

This will 'require' Inline::Java and get the jvm fired up.

Does not take any arguments. However, if you want to use the authentication information and cert that is used in the paypal API docs you can set the $Business::PayPal::SDK::PPCONINFO variable to true and it will use those instead of whatever you may have set.

=cut
sub init_java {
  my $s = shift;

  my @study = qw(
    java.util.HashMap
    com.paypal.sdk.profiles.APIProfile
    com.paypal.sdk.profiles.ProfileFactory
    com.paypal.sdk.services.CallerServices
    com.paypal.sdk.exceptions.PayPalException
    com.paypal.soap.api.AckCodeType
    com.paypal.soap.api.ErrorType
    org.apache.axis.types.Token
    com.paypal.soap.api.CurrencyCodeType
  );

  $ENV{CLASSPATH} = $s->get_classpath;

  ## Terrible hack to make Inline work in a module
  package main;
  require Inline;
  import Inline (
    Java => 'STUDY',
    STUDY => [],
    CLASSPATH => $ENV{CLASSPATH},
    JNI => $s->jni,
    SHARED_JVM => $s->shared_jvm,
    DIRECTORY => "/tmp",
  );
  Inline::Java::study_classes(\@study);
  package Business::PayPal::SDK;

  foreach my $ac (@REQUIRED) {
    if (!$s->$ac and !$PPCONINFO) {
      $s->error("$ac not set.");
    }
    return undef if $s->error;
  }
  my $prof = Inline::Java::cast('com.paypal.sdk.profiles.APIProfile', com::paypal::sdk::profiles::ProfileFactory->createAPIProfile());

  ## Test values from sdk
  if ($PPCONINFO) {
    $prof->setAPIUsername("sdk-seller_api1.sdk.com");
    $prof->setAPIPassword("12345678");
    $prof->setCertificateFile($s->java_sdk_dir . "/samples/Cert/sdk-seller.p12");
    $prof->setPrivateKeyPassword("password");
    $prof->setEnvironment("sandbox");
  } else {
    $prof->setAPIUsername($s->paypal_apiid);
    $prof->setAPIPassword($s->paypal_apipw);
    $prof->setCertificateFile($s->paypal_cert);
    $prof->setPrivateKeyPassword($s->paypal_certpw);
    $prof->setEnvironment($s->paypal_env);
  }

  my $caller = com::paypal::sdk::services::CallerServices->new();

  eval {
    $caller->setAPIProfile($prof);
  };

  if ($@) {
    if (ref $@) {
      $s->error("setAPIProfile failed: [" . $@->getMessage() . '] [' . $@ . ']');
    } else {
      $s->error("setAPIProfile failed: [$@]");
    }
    return undef;
  }

  $s->paypal($caller);
  return 1;
}

=head2 DoDirectPayment()

DoDirectPayment charges a card. Returns a hasref very similar in structure to the object returned by the java jdk

=cut
sub DoDirectPayment {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  my $reqs = [
    qw/
      OrderTotal
      FirstName
      LastName
      CreditCardNumber
      ExpMonth
      ExpYear
      Street1
      CityName
      IPAddress
    /
  ];

  return undef unless ($s->_checkRequires($reqs, $args));

  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.DoDirectPaymentRequestDetailsType
        com.paypal.soap.api.DoDirectPaymentRequestType
        com.paypal.soap.api.DoDirectPaymentResponseType
        com.paypal.soap.api.PaymentActionCodeType
        com.paypal.soap.api.PaymentDetailsType
        com.paypal.soap.api.PaymentCodeType
        com.paypal.soap.api.BasicAmountType
        com.paypal.soap.api.PayerInfoType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $resp;
  eval {
	  my $requestDetails = com::paypal::soap::api::DoDirectPaymentRequestDetailsType->new();
	  $requestDetails->setPaymentAction($com::paypal::soap::api::PaymentActionCodeType::Sale);
	
	  my $paymentDetails = com::paypal::soap::api::PaymentDetailsType->new();
	  my $totalAmount = com::paypal::soap::api::BasicAmountType->new();
	  $totalAmount->set_value($args->{OrderTotal});
	  $totalAmount->setCurrencyID($com::paypal::soap::api::CurrencyCodeType::USD);
	
	  $paymentDetails->setOrderTotal($totalAmount);
	
	  my $creditCard = $s->_getCreditCard($args);
	  my $payerName = $s->_getPersonName($args);
	  
	  my $payerInfo = com::paypal::soap::api::PayerInfoType->new();
	  $payerInfo->setPayerName($payerName);
	
	  my $payerAddress = $s->_getAddress($args);
	  $payerInfo->setAddress($payerAddress);
	  $creditCard->setCardOwner($payerInfo);
	
	  $requestDetails->setCreditCard($creditCard);
	  $requestDetails->setPaymentDetails($paymentDetails);
	  $requestDetails->setIPAddress($args->{IPAddress});
	
	  my $paymentRequest = com::paypal::soap::api::DoDirectPaymentRequestType->new();
	  $paymentRequest->setDoDirectPaymentRequestDetails($requestDetails);
	  
	  $resp = $s->paypal->call("DoDirectPayment", $paymentRequest);
  };
	
  my $ret = {};
  if ($@) {
    if (Inline::Java::caught('java.lang.Exception')) {
      if (ref $@) {
        $s->error("DoDirectPayment failed: [" . $@->getMessage() . '] [' . $@ . ']');
      } else {
        $s->error("DoDirectPayment failed: [" . $@ . ']');
      }
      return undef;
    } else {
      $s->error($@);
      return undef;
    }
  }

  my $ack = $resp->getAck();
  $ret->{ack} = $ack->toString;

  if ($ret->{ack} eq 'Success') {
    my $Amount = $resp->getAmount;
    $ret->{Amount}->{value} = $Amount->get_value;
    $ret->{Amount}->{Currency} = $Amount->getCurrencyID->toString;
    $ret->{TransactionID} = $resp->getTransactionID;
    $ret->{AVSCode} = $resp->getAVSCode;
    $ret->{CVV2Code} = $resp->getCVV2Code;
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  } else {
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  }

  return $ret;
}

sub _getCreditCard {
  my $s = shift;
  my $args = shift;

  my $reqs = [
    qw/
      CreditCardNumber
      ExpMonth
      ExpYear
      CardType
    /
  ];

  return undef unless $s->_checkRequires($reqs, $args);

  $args->{CVV2} ||= 000;
  package main;
  require Inline::Java;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.CreditCardDetailsType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $creditCard;
  eval {
    $creditCard = com::paypal::soap::api::CreditCardDetailsType->new();
    $creditCard->setCreditCardNumber($args->{CreditCardNumber});
    $creditCard->setExpMonth($args->{ExpMonth});
    $creditCard->setExpYear($args->{ExpYear});
    $creditCard->setCVV2($args->{CVV2});
    $creditCard->setCreditCardType($s->_getCardType($args->{CardType}));
  };

  if ($@) {
    $s->error("getCreditCard failed: " . $@->getMessage());
    return undef;
  } else {
    return $creditCard;
  }
}

sub _getPersonName {
  my $s = shift;
  my $args = shift;

  my $reqs = [
    qw/
      FirstName
      LastName
    /
  ];

  return undef unless ($s->_checkRequires($reqs, $args));


  package main;
  require Inline::Java;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.PersonNameType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $payerName;
  eval {
    $payerName = com::paypal::soap::api::PersonNameType->new();
    $payerName->setFirstName($args->{FirstName});
    $payerName->setLastName($args->{LastName});
    $payerName->setMiddleName($args->{MiddleName}) if $args->{MiddleName};
    $payerName->setSalutation($args->{Salutation}) if $args->{Salutation};
    $payerName->setSuffix($args->{Suffix}) if $args->{Suffix};
  };

  if ($@) {
    $s->error("getPersonName failed: [" . $@->getMessage() . ']' . ' [' . $@->toString() . ']');
    return undef;
  } else {
    return $payerName;
  }
}

sub _getCardType {
  my $s = shift;
  my $type = shift;

  unless ($type) {
    $s->error("You must pass a card type to _getCardType");
    return undef;
  }

  package main;
  require Inline::Java;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.CreditCardTypeType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $ccType;
  eval {
    $ccType = com::paypal::soap::api::CreditCardTypeType->fromString($type);
  };

  if ($@) {
    $s->error("getCreditCardType failes: [" . $@->getMessage() . "] [" . $@->toString() . ']');
    return undef;
  } else {
    return $ccType;
  }
}

=head2 DoExpressCheckoutPayment()

DoExpressCheckoutPayment after getting a token

=cut
sub DoExpressCheckoutPayment {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  my $reqs = [
    qw/
      token
      PayerID
      OrderTotal
    /
  ];

  return undef unless ($s->_checkRequires($reqs, $args));

  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.BasicAmountType
        com.paypal.soap.api.DoExpressCheckoutPaymentRequestDetailsType
        com.paypal.soap.api.DoExpressCheckoutPaymentRequestType
        com.paypal.soap.api.DoExpressCheckoutPaymentResponseDetailsType
        com.paypal.soap.api.DoExpressCheckoutPaymentResponseType
        com.paypal.soap.api.PaymentActionCodeType
        com.paypal.soap.api.PaymentCodeType
        com.paypal.soap.api.PaymentDetailsType
        com.paypal.soap.api.PaymentInfoType
        com.paypal.soap.api.PaymentStatusCodeType
        com.paypal.soap.api.PaymentTransactionCodeType
        java.util.Calendar
      )
    ]
  );
  package Business::PayPal::SDK;

  my $resp;
  my $responseDetails;
  eval {
    my $request = com::paypal::soap::api::DoExpressCheckoutPaymentRequestType->new();
    my $requestDetails = com::paypal::soap::api::DoExpressCheckoutPaymentRequestDetailsType->new();
    $requestDetails->setToken($args->{token});
    $requestDetails->setPayerID($args->{PayerID});
    $requestDetails->setPaymentAction($com::paypal::soap::api::PaymentActionCodeType::Sale);
    
    my $paymentDetails = com::paypal::soap::api::PaymentDetailsType->new();
    my $orderTotal = com::paypal::soap::api::BasicAmountType->new();

    $orderTotal->set_value($args->{OrderTotal});
    $orderTotal->setCurrencyID($com::paypal::soap::api::CurrencyCodeType::USD);

    $paymentDetails->setOrderTotal($orderTotal);

    $requestDetails->setPaymentDetails($paymentDetails);

    $request->setDoExpressCheckoutPaymentRequestDetails($requestDetails);

    $resp = $s->paypal->call('DoExpressCheckoutPayment', $request);

    $responseDetails = $resp->getDoExpressCheckoutPaymentResponseDetails();
  };

  if ($@) {
    if (Inline::Java::caught('java.lang.Exception')) {
      if (ref $@) {
        $s->error("DoExpressCheckoutPayment failed: [" . $@->getMessage() . '] [' . $@ . ']');
      } else {
        $s->error("DoExpressCheckoutPayment failed: [" . $@ . ']');
      }
      return undef;
    } else {
      $s->error($@);
      return undef;
    }
  }

  my $ret= {};

  my $ack = $resp->getAck();
  $ret->{ack} = $ack->toString;

  $ret->{Token} = $responseDetails->getToken;

  my $paymentInfo = $responseDetails->getPaymentInfo();

 
  if ($ret->{ack} eq 'Success') {
	  my $feeAmount = $paymentInfo->getFeeAmount();
	  
	  my $settleAmount = $paymentInfo->getSettleAmount();
	  
	  my $taxAmount = $paymentInfo->getTaxAmount();
	  
	  my $grossAmount = $paymentInfo->getGrossAmount();
	  
	  my $paymentStatus = $paymentInfo->getPaymentStatus();
	  
	  my $paymentType = $paymentInfo->getPaymentType();
	  
	  my $transactionType = $paymentInfo->getTransactionType();
	
	  my $paymentDate = Inline::Java::cast('java.util.Calendar', $paymentInfo->getPaymentDate());

	  $ret->{PaymentInfo} = {};
	
	  $ret->{PaymentInfo}->{PaymentStatus} = $paymentStatus->toString;
	  $ret->{PaymentInfo}->{PaymentType} = $paymentType->toString;
	  $ret->{PaymentInfo}->{ExchangeRate} = $paymentInfo->getExchangeRate();
	  $ret->{PaymentInfo}->{ParentTransactionID} = $paymentInfo->getParentTransactionID();
	  $ret->{PaymentInfo}->{TransactionID} = $paymentInfo->getTransactionID();
	  $ret->{PaymentInfo}->{TransactionType} = $transactionType->toString();
	  $ret->{PaymentInfo}->{ReceiptID} = $paymentInfo->getReceiptID();
	
	  $ret->{PaymentInfo}->{PaymentDate} = $s->_getDateString($paymentDate);
	  
	  $ret->{PaymentInfo}->{GrossAmount} = {};
    if ($grossAmount) {
	    $ret->{PaymentInfo}->{GrossAmount}->{value} = $grossAmount->get_value;
  	  $ret->{PaymentInfo}->{GrossAmount}->{CurrencyCode} = "USD";
    }
	
	  $ret->{PaymentInfo}->{FeeAmount} = {};
    if ($feeAmount) {
  	  $ret->{PaymentInfo}->{FeeAmount}->{value} = $feeAmount->get_value;
  	  $ret->{PaymentInfo}->{FeeAmount}->{CurrencyCode} = "USD";
    }
	 
	  $ret->{PaymentInfo}->{SettleAmount} = {};
    if ($settleAmount) {
  	  $ret->{PaymentInfo}->{SettleAmount}->{value} = $settleAmount->get_value;
  	  $ret->{PaymentInfo}->{SettleAmount}->{CurrencyCode} = "USD";
    }
	  
	  $ret->{PaymentInfo}->{TaxAmount} = {};
    if ($taxAmount) {
  	  $ret->{PaymentInfo}->{TaxAmount}->{value} = $taxAmount->get_value;
  	  $ret->{PaymentInfo}->{TaxAmount}->{CurrencyCode} = "USD";
    }
  } else {
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  }

  return $ret;
}

=head2 GetExpressCheckoutDetails()

GetExpressCheckoutDetails to get customer details.

=cut
sub GetExpressCheckoutDetails {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  my $reqs = [
    qw/
      token
    /
  ];

  return undef unless ($s->_checkRequires($reqs, $args));

  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.GetExpressCheckoutDetailsRequestType
        com.paypal.soap.api.GetExpressCheckoutDetailsResponseType
        com.paypal.soap.api.GetExpressCheckoutDetailsResponseDetailsType
        com.paypal.soap.api.PersonNameType
        com.paypal.soap.api.PayerInfoType
        com.paypal.soap.api.AddressType
        com.paypal.soap.api.CountryCodeType
        com.paypal.soap.api.PayPalUserStatusCodeType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $resp;
  my $respDetails;
  my $payerInfo;
  eval {
    my $request = com::paypal::soap::api::GetExpressCheckoutDetailsRequestType->new();
    $request->setToken($args->{token});

    $resp = $s->paypal->call("GetExpressCheckoutDetails", $request);
    $respDetails = $resp->getGetExpressCheckoutDetailsResponseDetails();
    $payerInfo = $respDetails->getPayerInfo();
  };

  if ($@) {
    if (Inline::Java::caught('java.lang.Exception')) {
      if (ref $@) {
        $s->error("GetExpressCheckoutDetails failed: [" . $@->getMessage() . '] [' . $@ . ']');
      } else {
        $s->error("GetExpressCheckoutDetails failed: [" . $@ . ']');
      }
      return undef;
    } else {
      $s->error($@);
      return undef;
    }
  }
 
  my $ret = {};
  my $ack = $resp->getAck();
  $ret->{ack} = $ack->toString;
  if ($ret->{ack} eq 'Success') {
    $ret->{Custom} = $respDetails->getCustom;
    $ret->{InvoiceID} = $respDetails->getInvoiceID;
    $ret->{Token} = $respDetails->getToken;
  
	  $ret->{PayerInfo}->{Payer} = $payerInfo->getPayer;
	  $ret->{PayerInfo}->{PayerID} = $payerInfo->getPayerID;
	  $ret->{PayerInfo}->{PayerBusiness} = $payerInfo->getPayerBusiness;
    if ($payerInfo->getPayerCountry) {
  	  my $CountryCodeType = $payerInfo->getPayerCountry;
      $ret->{PayerInfo}->{PayerCountry} = $CountryCodeType->toString;
    }
	  
    my $PayerStatus = $payerInfo->getPayerStatus;
	  $ret->{PayerInfo}->{PayerStatus} = $PayerStatus->toString;
	  
    my $payerName = $payerInfo->getPayerName();
	
	  $ret->{PayerInfo}->{PayerName}->{FirstName} = $payerName->getFirstName();
	  $ret->{PayerInfo}->{PayerName}->{LastName} = $payerName->getLastName();
	
	  my $payerAddress = $payerInfo->getAddress();
	
	  $ret->{PayerInfo}->{PayerAddress}->{AddressID} = $payerAddress->getAddressID();
	  $ret->{PayerInfo}->{PayerAddress}->{CityName} = $payerAddress->getCityName();
	  my $CountryCodeType = $payerAddress->getCountry;
	  $ret->{PayerInfo}->{PayerAddress}->{Country} = $CountryCodeType->toString() if $CountryCodeType;
	  $ret->{PayerInfo}->{PayerAddress}->{CountryName} = $payerAddress->getCountryName();
	  $ret->{PayerInfo}->{PayerAddress}->{Phone} = $payerAddress->getPhone();
	  $ret->{PayerInfo}->{PayerAddress}->{Name} = $payerAddress->getName();
	  $ret->{PayerInfo}->{PayerAddress}->{PostalCode} = $payerAddress->getPostalCode();
	  $ret->{PayerInfo}->{PayerAddress}->{StateOrProvince} = $payerAddress->getStateOrProvince();
	  $ret->{PayerInfo}->{PayerAddress}->{Street1} = $payerAddress->getStreet1();
	  $ret->{PayerInfo}->{PayerAddress}->{Street2} = $payerAddress->getStreet2();
  } else {
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  }
  return  $ret;
}

=head2 SetExpressCheckout()

SetExpressCheckout to get token

=cut
sub SetExpressCheckout {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  my $reqs = [
    qw/
      OrderTotal
      ReturnURL
      CancelURL
    /
  ];

  return undef unless $s->_checkRequires($reqs, $args);
 
  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.SetExpressCheckoutRequestType
        com.paypal.soap.api.SetExpressCheckoutResponseType
        com.paypal.soap.api.SetExpressCheckoutRequestDetailsType
        com.paypal.soap.api.BasicAmountType
        com.paypal.soap.api.CountryCodeType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $resp;
  eval {
    my $OrderTotalObj = com::paypal::soap::api::BasicAmountType->new($args->{OrderTotal});
    $OrderTotalObj->setCurrencyID($com::paypal::soap::api::CurrencyCodeType::USD);
    my $MaxAmountObj;
    if ($args->{MaxAmount}) {
      $MaxAmountObj = com::paypal::soap::api::BasicAmountType->new($args->{MaxAmount});
      $MaxAmountObj->setCurrencyID($com::paypal::soap::api::CurrencyCodeType::USD);
    }
  
    my $ReqDetails = com::paypal::soap::api::SetExpressCheckoutRequestDetailsType->new();
    $ReqDetails->setReturnURL($args->{ReturnURL});
    $ReqDetails->setCancelURL($args->{CancelURL});
    $ReqDetails->setOrderTotal($OrderTotalObj);
  
    $ReqDetails->setCustom($args->{Custom}) if $args->{Custom};
    $ReqDetails->setInvoiceID($args->{InvoiceID}) if $args->{InvoiceID};

    my $request = com::paypal::soap::api::SetExpressCheckoutRequestType->new();
    $request->setSetExpressCheckoutRequestDetails($ReqDetails);
    $resp = $s->paypal->call("SetExpressCheckout", $request);
  };
  my $ret = {};

  if ($@) {
    if (ref $@) {
      $s->error("SetExpressCheckout failed: [" . $@->getMessage() . '] [' . $@ . ']');
    } else {
      $s->error("SetExpressCheckout failed: [$@]");
    }
    return undef;
  }

  my $ack = $resp->getAck();
  $ret->{ack} = $ack->toString;

  if ($ret->{ack} eq 'Success') {
    $ret->{token} = $resp->getToken();
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  } else {
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  }
  return $ret;
}

=head2 RefundTransaction()

RefundTransaction to do refund. RefundType is defaulted to 'Full'

=cut
sub RefundTransaction {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  $args->{RefundType} ||= 'Full';

  my $reqs = [
    qw/
      TransactionID
      RefundType
    /
  ];

  if ($args->{RefundType} ne 'Full') {
    push @$reqs, 'Amount';
  }

  return undef unless $s->_checkRequires($reqs, $args);

  unless ($args->{RefundType} =~ /^(Full|Partial|Other)$/) {
    $s->error("[$args->{RefundType}] is not a valid RefundType");
    return undef;
  }

  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.RefundTransactionRequestType
        com.paypal.soap.api.RefundTransactionResponseType
        com.paypal.soap.api.RefundPurposeTypeCodeType
        com.paypal.soap.api.BasicAmountType
      )
    ]
  );
  package Business::PayPal::SDK;

  my $resp;
  eval {
  
    my $request = com::paypal::soap::api::RefundTransactionRequestType->new();

    $request->setTransactionID($args->{TransactionID});
    
    my $RefundType = com::paypal::soap::api::RefundPurposeTypeCodeType->fromString($args->{RefundType});
    $request->setRefundType($RefundType);
    if ($args->{Amount}) {
      my $Amount = com::paypal::soap::api::BasicAmountType->new($args->{Amount});
      $Amount->setCurrencyID($com::paypal::soap::api::CurrencyCodeType::USD);
      $request->setAmount($Amount);
    }
    $request->setMemo($args->{Memo}) if $args->{Memo};
    $resp = $s->paypal->call("RefundTransaction", $request);
  };
  my $ret = {};

  if ($@) {
    my $var = $@;
    if (ref $@) {
      $s->error("RefundTransaction failed: [" . $var->getMessage() . '] [' . $var . ']');
    } else {
      $s->error("RefundTransaction failed: [$var]");
    }
    return undef;
  }
  
  my $ack = $resp->getAck();
  $ret->{ack} = $ack->toString;

  if ($ret->{ack} eq "Success") {
    my $FeeRefundAmount = $resp->getFeeRefundAmount();
    my $GrossRefundAmount = $resp->getGrossRefundAmount();
    my $NetRefundAmount = $resp->getNetRefundAmount();
    $ret->{RefundTransactionID} = $resp->getRefundTransactionID();
    $ret->{FeeRefundAmount}->{value} = $FeeRefundAmount->get_value() if $FeeRefundAmount;
    $ret->{GrossRefundAmount}->{value} = $GrossRefundAmount->get_value() if $GrossRefundAmount;
    $ret->{NetRefundAmount}->{value} = $NetRefundAmount->get_value() if $NetRefundAmount;
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  } else {
    $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  }
  return $ret;
}



sub _getAddress {
  my $s = shift;
  my $args = shift;

  my @requires = qw/
    Street1
    CityName
    PostalCode
    Country
  /;
  return undef unless $s->_checkRequires(\@requires, $args);
  package main;
  require Inline::Java;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.AddressType
      )
    ]
  );
  package Business::PayPal::SDK;
 
  my $AddressObj;
  eval { 
    $AddressObj = com::paypal::soap::api::AddressType->new();
    $AddressObj->setStreet1($args->{Street1});
    $AddressObj->setStreet2($args->{Street2}) if $args->{Street2};
    $AddressObj->setCityName($args->{CityName});
    $AddressObj->setStateOrProvince($args->{StateOrProvince});
    $AddressObj->setPostalCode($args->{PostalCode});
    $AddressObj->setCountry($s->_getCountryCode($args->{Country}));
  };

  if ($@) {
    $s->error("getAddress failed: [" . $@->getMessage() . '] [' . $@->toString() . ']');
    return undef;
  } else {
    return $AddressObj;
  }
}

sub _getCountryCode {
  my $s = shift;
  my $cc = shift;

  $cc ||= '';
  unless ($cc && $cc =~ /^[A-Z]{2}$/) {
    $s->error("You must pass a valid code to _getCountryCode. [$cc]");
    return 
  }
  package main;
  require Inline::Java;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.CountryCodeType
      )
    ]
  );
  package Business::PayPal::SDK;
  
  my $code;
  eval {
   $code = com::paypal::soap::api::CountryCodeType->fromString($cc);
  };

  if ($@) {
    if ((ref $@) eq 'main::java::lang::IllegalArgumentException') {
      $s->error("getCountryCode failed: [$cc] is not a valid country code.");
    } elsif (ref $@) {
      $s->error("getCountryCode failed: [" . $@->getMessage() . '] [' . $@ . ']');
    } else {
      $s->error("getCountryCode failed: [$@]");
    }
    return undef;
  } else {
    return $code;
  }
}

sub _checkRequires {
  my $s = shift;
  my $reqs = shift;
  my $args = shift;

  unless (ref $reqs) {
    $s->error('You must pass an arrayref to check_requires.');
    return undef;
  }

  foreach my $req (@$reqs) {
    unless ($args->{$req}) {
      my @stack = caller(1);
      $s->error("$req is required for method $stack[3]");
      return undef;
    }
  }
  return 1;
}

=head2 TransactionSearch()

This is not really completed yet.

=cut
sub TransactionSearch {
  my $s = shift;
  my $args = shift;

  unless ($s->paypal) {
    unless ($s->init_java) {
      $s->error("could not init_java.");
      return undef;
    }
  }

  package main;
  Inline::Java::study_classes(
    [
      qw(
        com.paypal.soap.api.TransactionSearchRequestType
        com.paypal.soap.api.TransactionSearchResponseType
        com.paypal.sdk.exceptions.TransactionException
        java.util.Calendar
        java.lang.String
      )
    ]
  );
  package Business::PayPal::SDK;
  
  my $resp;
  eval {
    my $request = com::paypal::soap::api::TransactionSearchRequestType->new();
    my $jcal = Inline::Java::cast('java.util.Calendar', java::util::Calendar->getInstance());
    $jcal->set(@{$args->{date}});
    $request->setStartDate($jcal);

    my $resp = $s->paypal->call("TransactionSearch", $request);
  };

  my $ackcode = $resp->getAck();

  if ($@) {
    my $var = $@;
    if (ref $@) {
      $s->error("RefundTransaction failed: [" . $var->getMessage() . '] [' . $var . ']');
    } else {
      $s->error("RefundTransaction failed: [$var]");
    }
    return undef;
  }

  my $ret = {};
  $ret->{ack} = $ackcode->toString;
  if ($args->{ack} eq 'Success') {
    1;
  } else {
    1;
  }
  $ret->{ErrorCodes} = $s->_getErrorHash($resp->getErrors);
  return $ret;
}

sub _getDateString {
  my $s = shift;
  my $dateObj = shift;

  return sprintf(
    "%04d-%02d-%02d %02d:%02d:%02d",
    $dateObj->get($dateObj->{YEAR}),
    $dateObj->get($dateObj->{MONTH}),
    $dateObj->get($dateObj->{DAY_OF_MONTH}),
    $dateObj->get($dateObj->{HOUR}),
    $dateObj->get($dateObj->{MINUTE}),
    $dateObj->get($dateObj->{SECOND}),
  );
}

sub error {
  my $s = shift;
  my $msg = shift;

  if ($msg) {
    $ERROR .= "$msg\n";
  }

  return $ERROR;
}

sub _getErrorHash {
  my $s = shift;
  my $errors = shift;

  my $ErrorCodes = {};
  foreach my $err (@$errors) {
    my $token = $err->getErrorCode;
    $s->error($err->getLongMessage) if $err;
    $ErrorCodes->{$token->toString} = $err->getLongMessage if ($err && $token);
  }
  return $ErrorCodes;
}

sub get_classpath {
  my $s = shift;

  my $pplibdir = $s->java_sdk_dir . "/lib";

  opendir DIR, "$pplibdir";
  my @jars;
  foreach my $jar (grep { /\.jar$/ } readdir(DIR)) {
    push @jars, "$pplibdir/$jar";
  }
  closedir DIR;
  return join ":", @jars;
}

sub dumper {
  my $s = shift;
  my $thing = shift;

  require Data::Dumper;
  return Data::Dumper::Dumper($thing);
}

1;

__END__

=head1 NOTES

This modules is currently in development, not all methods in the paypal SDK are implemented yet.

=head1 BUGS

Non that I am aware of yet. :) Please email if you find any.

=head1 AUTHOR

Jacob Boswell <jacob@s56.net>

Also thanks to Rob Brown for assistance.

=head1 COPYRIGHT

Business::PayPal::SDK is Copyright(c) 2005 Jacob Boswell. All rights reserved
You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.