<?php

/**

 * @category   Zend

 * @package    Zend_Cloud

 * @subpackage Infrastructure

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

/**

 * Instance of an infrastructure service

 * 

 * @package    Zend_Cloud

 * @subpackage Infrastructure

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Cloud_Infrastructure_Image 

{

    const IMAGE_ID           = 'imageId';

    const IMAGE_OWNERID      = 'ownerId';

    const IMAGE_NAME         = 'name';

    const IMAGE_DESCRIPTION  = 'description';

    const IMAGE_PLATFORM     = 'platform';

    const IMAGE_ARCHITECTURE = 'architecture';

    const ARCH_32BIT         = 'i386';

    const ARCH_64BIT         = 'x86_64';

    const IMAGE_WINDOWS      = 'windows';

    const IMAGE_LINUX        = 'linux';

    /**

     * Image's attributes

     * 

     * @var array

     */

    protected $attributes = array();

    /**

     * The Image adapter (if exists)

     * 

     * @var object

     */

    protected $adapter;

    /**

     * Required attributes

     * 

     * @var array

     */

    protected $attributeRequired = array(

        self::IMAGE_ID, 

        self::IMAGE_DESCRIPTION, 

        self::IMAGE_PLATFORM, 

        self::IMAGE_ARCHITECTURE,

    );

    /**

     * Constructor

     * 

     * @param array $data

     * @param object $adapter 

     */

    public function __construct($data, $adapter = null) 

    {

        if (is_object($data)) {

            if (method_exists($data, 'toArray')) {

                $data= $data->toArray();

            } elseif ($data instanceof Traversable) {

                $data = iterator_to_array($data);

            }

        }

        if (empty($data) || !is_array($data)) {

            require_once 'Zend/Cloud/Infrastructure/Exception.php';

            throw new Zend_Cloud_Infrastructure_Exception('You must pass an array of parameters');

        }

        foreach ($this->attributeRequired as $key) {

            if (empty($data[$key])) {

                require_once 'Zend/Cloud/Infrastructure/Exception.php';

                throw new Zend_Cloud_Infrastructure_Exception(sprintf(

                    'The param "%s" is a required parameter for class %s',

                    $key,

                    __CLASS__

                ));

            }

        }

        $this->attributes = $data;

        $this->adapter    = $adapter;

    }

    /**

     * Get Attribute with a specific key

     *

     * @param array $data

     * @return misc|boolean

     */

    public function getAttribute($key) 

    {

        if (!empty($this->attributes[$key])) {

            return $this->attributes[$key];

        }

        return false;

    }

    /**

     * Get all the attributes

     * 

     * @return array

     */

    public function getAttributes()

    {

        return $this->attributes;

    }

    /**

     * Get the image ID

     * 

     * @return string

     */

    public function getId()

    {

        return $this->attributes[self::IMAGE_ID];

    }

    /**

     * Get the Owner ID

     * 

     * @return string

     */

    public function getOwnerId()

    {

        return $this->attributes[self::IMAGE_OWNERID];

    }

    /**

     * Get the name

     * 

     * @return string 

     */

    public function getName()

    {

        return $this->attributes[self::IMAGE_NAME];

    }

    /**

     * Get the description

     * 

     * @return string 

     */

    public function getDescription()

    {

        return $this->attributes[self::IMAGE_DESCRIPTION];

    }

    /**

     * Get the platform

     * 

     * @return string 

     */

    public function getPlatform()

    {

        return $this->attributes[self::IMAGE_PLATFORM];

    }

    /**

     * Get the architecture

     * 

     * @return string 

     */

    public function getArchitecture()

    {

        return $this->attributes[self::IMAGE_ARCHITECTURE];

    }

}