<?php
/**
 * Class Mobilpay_Payment_Request_Card
 * This class can be used for accessing mobilpay.ro payment interface for your configured online services
 * @copyright NETOPIA
 * @author Claudiu Tudose
 * @version 1.0
 * 
 */
class Mobilpay_Payment_Request_Card extends Mobilpay_Payment_Request_Abstract  
{
	const ERROR_LOAD_FROM_XML_ORDER_INVOICE_ELEM_MISSING	= 0x30000001;
	
	public $invoice	= null;
	 
	function __construct()
	{
		parent::__construct();
		$this->type = self::PAYMENT_TYPE_CARD;
	}
	
	protected function _loadFromXml(DOMElement $elem)
	{
		parent::_parseFromXml($elem);
		
		//card request specific data
		$elems = $elem->getElementsByTagName('invoice');
		if($elems->length != 1)
		{
			throw new Exception('Mobilpay_Payment_Request_Card::loadFromXml failed; invoice element is missing', self::ERROR_LOAD_FROM_XML_ORDER_INVOICE_ELEM_MISSING);
		}
		
		$this->invoice = new Mobilpay_Payment_Invoice($elems->item(0));

		return $this;
	}
	
	protected function _prepare()
	{
		if(is_null($this->signature) || is_null($this->orderId) || !($this->invoice instanceof Mobilpay_Payment_Invoice))
		{
			throw new Exception('One or more mandatory properties are invalid!', self::ERROR_PREPARE_MANDATORY_PROPERTIES_UNSET);
		}
		
		$this->_xmlDoc 		= new DOMDocument('1.0', 'utf-8');
		$rootElem 			= $this->_xmlDoc->createElement('order');

		//set payment type attribute
		$xmlAttr 			= $this->_xmlDoc->createAttribute('type');
		$xmlAttr->nodeValue	= $this->type;
		$rootElem->appendChild($xmlAttr);
		
		//set id attribute
		$xmlAttr 			= $this->_xmlDoc->createAttribute('id');
		$xmlAttr->nodeValue	= $this->orderId;
		$rootElem->appendChild($xmlAttr);
		
		//set timestamp attribute
		$xmlAttr 			= $this->_xmlDoc->createAttribute('timestamp');
		$xmlAttr->nodeValue	= date('YmdHis');
		$rootElem->appendChild($xmlAttr);
		
		$xmlElem			= $this->_xmlDoc->createElement('signature');
		$xmlElem->nodeValue	= $this->signature;
		$rootElem->appendChild($xmlElem);
		
		$xmlElem			= $this->invoice->createXmlElement($this->_xmlDoc);
		$rootElem->appendChild($xmlElem);
		
		if(is_array($this->params) && sizeof($this->params) > 0)
		{
			$xmlParams = $this->_xmlDoc->createElement('params');
			foreach ($this->params as $key=>$value)
			{
				$xmlParam 	= $this->_xmlDoc->createElement('param');
				
				$xmlName			= $this->_xmlDoc->createElement('name');
				$xmlName->nodeValue = trim($key);
				$xmlParam->appendChild($xmlName);
				
				$xmlValue			= $this->_xmlDoc->createElement('value');
				$xmlValue->appendChild($this->_xmlDoc->createCDATASection($value));
				$xmlParam->appendChild($xmlValue);
				
				$xmlParams->appendChild($xmlParam);
			}
			
			$rootElem->appendChild($xmlParams);
		}
		
		if(!is_null($this->returnUrl) || !is_null($this->confirmUrl))
		{
			$xmlUrl = $this->_xmlDoc->createElement('url');
			if(!is_null($this->returnUrl))
			{
				$xmlElem = $this->_xmlDoc->createElement('return');
				$xmlElem->nodeValue = $this->returnUrl;
				$xmlUrl->appendChild($xmlElem); 
			}
			if(!is_null($this->confirmUrl))
			{
				$xmlElem = $this->_xmlDoc->createElement('confirm');
				$xmlElem->nodeValue = $this->confirmUrl;
				$xmlUrl->appendChild($xmlElem); 
			}
			
			$rootElem->appendChild($xmlUrl);
		}
		
		$this->_xmlDoc->appendChild($rootElem);

		return $this;
	}
	
}
