<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Tag
 * @subpackage Cloud
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id$
 */

/**
 * Abstract class for cloud decorators
 *
 * @category  Zend
 * @package   Zend_Tag
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Tag_Cloud_Decorator_Cloud
{
    /**
     * Option keys to skip when calling setOptions()
     *
     * @var array
     */
    protected $_skipOptions = array(
        'options',
        'config',
    );

    /**
     * Create a new cloud decorator with options
     *
     * @param mixed $options
     */
    public function __construct($options = null)
    {
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        }

        if (is_array($options)) {
            $this->setOptions($options);
        }
    }

    /**
     * Set options from array
     *
     * @param  array $options Configuration for the decorator
     * @return Zend_Tag_Cloud
     */
    public function setOptions(array $options)
    {
        foreach ($options as $key => $value) {
            if (in_array(strtolower($key), $this->_skipOptions)) {
                continue;
            }

            $method = 'set' . $key;
            if (method_exists($this, $method)) {
                $this->$method($value);
            }
        }

        return $this;
    }

    /**
     * Render a list of formatted tags
     *
     * @param  array $tags
     * @return string
     */
    abstract public function render(array $tags);
}
