<?php

/**
 * Card class
 * 
 * @package Sabre
 * @subpackage CardDAV
 * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
 * @author Evert Pot (http://www.rooftopsolutions.nl/) 
 * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
 *
 /
/**
 * The Card object represents a single Card from an addressbook
 */ 
class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard {

    /**
     * CardDAV backend
     * 
     * @var Sabre_CardDAV_Backend_Abstract 
     */
    private $carddavBackend;

    /**
     * Array with information about this Card
     * 
     * @var array 
     */
    private $cardData;

    /**
     * Array with information about the containing addressbook 
     * 
     * @var array 
     */
    private $addressBookInfo;

    /**
     * Constructor 
     * 
     * @param Sabre_CardDAV_Backend_Abstract $carddavBackend 
     * @param array $addressBookInfo
     * @param array $cardData
     */
    public function __construct(Sabre_CardDAV_Backend_Abstract $carddavBackend,array $addressBookInfo,array $cardData) {

        $this->carddavBackend = $carddavBackend;
        $this->addressBookInfo = $addressBookInfo;
        $this->cardData = $cardData;

    }

    /**
     * Returns the uri for this object 
     * 
     * @return string 
     */
    public function getName() {

        return $this->cardData['uri'];

    }

    /**
     * Returns the VCard-formatted object 
     * 
     * @return string 
     */
    public function get() {

        $cardData = $this->cardData['carddata'];
        $s = fopen('php://temp','r+');
        fwrite($s, $cardData);
        rewind($s);
        return $s;

    }

    /**
     * Updates the VCard-formatted object 
     * 
     * @param string $cardData 
     * @return void 
     */
    public function put($cardData) {

        if (is_resource($cardData))
            $cardData = stream_get_contents($cardData);

        $this->carddavBackend->updateCard($this->addressBookInfo['id'],$this->cardData['uri'],$cardData);
        $this->cardData['carddata'] = $cardData;

    }

    /**
     * Deletes the card
     * 
     * @return void
     */
    public function delete() {

        $this->carddavBackend->deleteCard($this->addressBookInfo['id'],$this->cardData['uri']);

    }

    /**
     * Returns the mime content-type 
     * 
     * @return string 
     */
    public function getContentType() {

        return 'text/x-vcard';

    }

    /**
     * Returns an ETag for this object 
     * 
     * @return string 
     */
    public function getETag() {

        return md5($this->cardData['carddata']);

    }

    /**
     * Returns the last modification date as a unix timestamp
     * 
     * @return time 
     */
    public function getLastModified() {

        return isset($this->cardData['lastmodified'])?$this->cardData['lastmodified']:null;

    }

    /**
     * Returns the size of this object in bytes 
     * 
     * @return int
     */
    public function getSize() {

        return strlen($this->cardData['carddata']);

    }
}