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<?php
/**
 * @table paysystems
 * @id paypal-pro
 * @title PayPal Pro
 * @visible_link http://www.paypal.com/
 * @recurring cc
 * @logo_url paypal.png
 */
/**
 * @todo do not save free trial $1 as real payment
 * 
 */

class Am_Paysystem_PaypalPro extends Am_Paysystem_CreditCard
{
    const PLUGIN_STATUS = self::STATUS_PRODUCTION;
    /** key in invoice data */
    const PAYPAL_PROFILE_ID = 'paypal-profile-id';
    
    protected $defaultTitle = "PayPal Pro";
    protected $defaultDescription = "accepts Visa, MasterCard";
    protected $_canResendPostback = true;

    
    public function getRecurringType()
    {
        return self::REPORTS_REBILL;
    }

    public function getFormOptions()
    {
        $ret = parent::getFormOptions();
        $ret[] = self::CC_PHONE;
        return $ret;
    }

    public function storesCcInfo()
    {
        return false;
    }
    
    public function getSupportedCurrencies()
    {
        return array(
            'AUD', 'BRL', 'CAD', 'CZK', 'DKK', 'EUR', 'HKD', 'HUF', 'ILS', 'JPY',
            'MYR', 'MXN', 'NOK', 'NZD', 'PHP', 'PLN', 'GBP', 'SGD', 'SEK', 'CHF',
            'TWD', 'THB', 'USD', 'TRY', 'RUB');
    }
    /**
     * For UK, only Maestro, Solo, MasterCard, Discover, and Visa are 
     * allowable. For Canada, only MasterCard and Visa are allowable; Interac debit cards are not supported
     * NOTE: If the credit card type is Maestro or Solo, the currencyId must be GBP. 
     * In addition, either StartMonth and StartYear or IssueNumber must be specified.
     */
    public function getCreditCardTypeOptions()
    {
        return array(
            'Visa' => 'Visa', 
            'MasterCard' => 'MasterCard',
            'Discover' => 'Discover',
            'Amex' => 'Amex',
//            'Maestro' => 'Maestro',
//            'Solo' => 'Solo',
        );
    }
    public function _doBill(Invoice $invoice, $doFirst, CcRecord $cc, Am_Paysystem_Result $result)
    {
        if(!$doFirst) return; // Recurring payments should not be handled by cron. 
        
        if (!$invoice->rebill_times)
        {
            $request = new Am_Paysystem_PaypalApiRequest($this);
            $request->doSale($invoice, $cc);
        } else {
            $request = new Am_Paysystem_PaypalApiRequest($this);
            $request->createRecurringPaymentProfile($invoice, $cc);
        }
        $tr = new Am_Paysystem_Transaction_PaypalPro_CreateRecurringPaymentsProfile($this, $invoice, $request, $doFirst);
        $tr->run($result); // send payment request and check response
    }
    public function _initSetupForm(Am_Form_Setup $form)
    {
        Am_Paysystem_PaypalApiRequest::initSetupForm($form);
        $form->addAdvCheckbox('send_shipping')->setLabel("Send user's address as shipping address to PayPal");
    }
    public function onSetupForms(Am_Event_SetupForms $event)
    {
        parent::onSetupForms($event);
        $event->getForm('paypal-pro')->removeElementByName('payment.'.$this->getId().'.reattempt');
    }
    
    
    public function createTransaction(Am_Mvc_Request $request, Am_Mvc_Response $response, array $invokeArgs)
    {
        return new Am_Paysystem_Transaction_Incoming_PaypalPro($this, $request, $response, $invokeArgs);
    }
    
    public function cancelInvoice(Invoice $invoice)
    {
        $log = Am_Di::getInstance()->invoiceLogRecord;
        $log->title = "cancelRecurringPaymentProfile";
        $log->paysys_id = $this->getId();
        
        $apireq = new Am_Paysystem_PaypalApiRequest($this);
        $apireq->cancelRecurringPaymentProfile($invoice, $invoice->data()->get(self::PAYPAL_PROFILE_ID));
        $result = $apireq->sendRequest($log);
        $log->setInvoice($invoice);
        $log->update();
        if($result['ACK'] != 'Success')
            throw new Am_Exception_InputError('Transaction was not cancelled. Got error from paypal: '.$result['L_SHORTMESSAGE0']);
        
    }
    
    function processRefund(InvoicePayment $payment, Am_Paysystem_Result $result, $amount)
    {
        $log = Am_Di::getInstance()->invoiceLogRecord;
        $log->title = "refundTransaction";
        $log->paysys_id = $this->getId();
        
        $apireq = new Am_Paysystem_PaypalApiRequest($this);
        $apireq->refundTransaction($payment);
        $res = $apireq->sendRequest($log);
        $log->setInvoice($payment->getInvoice());
        $log->update();
        
        if($res['ACK'] != 'Success')
            throw new Am_Exception_InputError('Transaction was not refunded. Got error from paypal: '.$res['L_SHORTMESSAGE0']);

        $trans = new Am_Paysystem_Transaction_Manual($this);
        $trans->setAmount($amount);
        $trans->setReceiptId($res['REFUNDTRANSACTIONID']);
        $result->setSuccess();
    }

    public function ccRebill($date = null) {
        
        /* Disable cron rebill process 
         * Rebills will be handled through IPN.
         */
    }
    public function getReadme()
    {
        $url = $this->getPluginUrl('ipn');
return <<<CUT
<b>PayPal PRO payment plugin installation</b>

Up to date instructions how to enable and configure PayPal PRO plugin you  may find at 
<a href='http://www.amember.com/docs/Payment/PaypalPro'>http://www.amember.com/docs/Payment/PaypalPro</a>

<b>IMPORTANT:</b> You <b>MUST</b> set IPN url in your Paypal Profile to: 
        
  <b><i>$url</i></b>

CUT;
        
    }

    public function getUpdateCcLink($user)
    {
        return $this->getPluginUrl('update');
    }
    
    public function storeCreditCard(CcRecord $cc, Am_Paysystem_Result $result)
    {
        $profiles = array();
        //Find all profiles which should be updated. 
        foreach($this->getDi()->db->selectPage($total, "
            SELECT d.value, i.invoice_id 
            FROM ?_data d LEFT JOIN ?_invoice i 
            ON d.`table` = 'invoice' AND d.`key` = ? AND  d.id = i.invoice_id 
            WHERE i.user_id = ? AND i.status = ?", self::PAYPAL_PROFILE_ID, $cc->user_id, Invoice::RECURRING_ACTIVE) as $profile)
        {
            $profiles[$profile['value']] = $profile['invoice_id'];
        }
        
        $failures = array();
        foreach($profiles as $profile_id=>$invoice_id)
        {
            $request = new Am_Paysystem_PaypalApiRequest($this);
            $request->setCc($invoice = $this->getDi()->invoiceTable->load($invoice_id), $cc);
            $request->addPostParameter('METHOD', 'UpdateRecurringPaymentsProfile');
            $request->addPostParameter('PROFILEID', $profile_id);
            $request->addPostParameter('NOTE', 'Update CC info, customer IP: '.$this->getDi()->request->getHttpHost());
            $log = Am_Di::getInstance()->invoiceLogRecord;
            $log->title = "updateRecurringPaymentsProfile";
            $log->paysys_id = $this->getId();
        
            $res = $request->sendRequest($log);
            $log->setInvoice($invoice);
            $log->update();
            if($res['ACK'] != 'Success')
                $failures[] = sprintf('CC info was not updated for profile: %s. Got error from paypal: %s', $profile_id, $res['L_SHORTMESSAGE0']);
        }
        
        
        if(count($failures))
            $result->setFailed ($failures);
        else 
            $result->setSuccess();
    }

}

class Am_Paysystem_Transaction_PaypalPro extends Am_Paysystem_Transaction_CreditCard
{
    
    public function validate()
    {
        if (empty($this->vars['ACK']))
            return $this->result->setFailed(___("Payment failed"));
        if (!in_array($this->vars['ACK'], array('Success', 'SuccessWithWarning')))
            return $this->result->setFailed(___("Payment failed") . " : " . $this->vars['ACK']);
        
// The next check is unnecessary. and it lead to an issue when paypal returns SuccessWithWarning response. 
// In this situation L_SHORTMESSAGE0 will have value.
// 
//         if (!empty($this->vars['L_SHORTMESSAGE0']))
//            return $this->result->setFailed(___("Payment failed") . " : " . $this->vars['L_SHORTMESSAGE0']);
        
        $this->result->setSuccess();
    }
    public function getUniqId()
    {
        return @$this->vars['TRANSACTIONID'];
    }
    public function parseResponse()
    {
        parse_str($this->response->getBody(), $this->vars);
        if (get_magic_quotes_gpc())
            $this->vars = Am_Mvc_Request::ss($this->vars);
    }
    public function processValidated()
    {
        if ($this->invoice->first_total > 0)
            $this->invoice->addPayment($this); 
        else
            $this->invoice->addAccessPeriod($this); // start free trial
        if (!empty($this->vars['PROFILEID']))
            $this->invoice->data()->set(Am_Paysystem_PaypalPro::PAYPAL_PROFILE_ID, $this->vars['PROFILEID'])->update();
    }
}

class Am_Paysystem_Transaction_PaypalPro_CreateRecurringPaymentsProfile extends Am_Paysystem_Transaction_PaypalPro
{
    public function validate()
    {
        parent::validate();
        
        // Need to do additional validations. 
        // Sometimes paypal return transacton with ACK = Success ProfileStatus= PendingProfile and without transactionid. 
        // In most situations this means that profile won't be created. So need to wait for IPN message to be sure. 
        
        if(
            $this->result->isSuccess() && 
            ($this->vars['PROFILESTATUS'] == 'PendingProfile') && 
            empty($this->vars['TRANSACTIONID'])
            )
        {
            $this->invoice->data()->set(
                Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_KEY, 
                Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_WAITING
                )->update();
            
            $sleep = 15; // Wait for 15 seconds;
            
            do{
                sleep(1);
                $status = $this->invoice->data()->get(Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_KEY);
            }while((--$sleep) && ($status == Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_WAITING));
            
            switch($status){
                case Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_CANCELLED : 
                case Am_Paysystem_Transaction_Incoming_PaypalPro::IPN_STATUS_WAITING :
                    $this->result->reset();
                    $this->result->setFailed(___("Payment failed"));
                    break;
                default: 
                    $this->vars['TRANSACTIONID'] = $status;
            }
        }
        return $this->result;
    }
}

class Am_Paysystem_Transaction_Incoming_PaypalPro  extends Am_Paysystem_Transaction_Paypal
{
    const TXN_RECURRING_PAYMENT_PROFILE_CREATED = "recurring_payment_profile_created";
    const IPN_STATUS_KEY = 'paypal-ipn-status';
    const IPN_STATUS_CANCELLED = 'cancelled';
    const IPN_STATUS_WAITING = 'waiting';
    
    function processValidated()
    {
        switch($this->txn_type){
            
            case self::TXN_RECURRING_PAYMENT_PROFILE_CREATED : 
                $this->invoice->data()->set(self::IPN_STATUS_KEY, $this->request->get('initial_payment_txn_id'))->update();
            break;
            
            case self::TXN_RECURRING_PAYMENT_PROFILE_CANCEL : 
                $this->invoice->data()->set(self::IPN_STATUS_KEY, self::IPN_STATUS_CANCELLED)->update();
            break;
        }
        parent::processValidated();
    }
}