<?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_Tool

 * @subpackage Framework

 * @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: SearchConstraints.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * This class is an iterator that will iterate only over enabled resources

 *

 * @category   Zend

 * @package    Zend_Tool

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 */

class Zend_Tool_Project_Profile_Resource_SearchConstraints

{

    /**

     * @var array

     */

    protected $_constraints = array();

    /**

     * __construct()

     *

     * @param array|string $options

     */

    public function __construct($options = null)

    {

        if (is_string($options)) {

            $this->addConstraint($options);

        } elseif (is_array($options)) {

            $this->setOptions($options);

        }

    }

    /**

     * setOptions()

     *

     * @param array $option

     * @return Zend_Tool_Project_Profile_Resource_SearchConstraints

     */

    public function setOptions(Array $option)

    {

        foreach ($option as $optionName => $optionValue) {

            if (is_int($optionName)) {

                $this->addConstraint($optionValue);

            } elseif (is_string($optionName)) {

                $this->addConstraint(array('name' => $optionName, 'params' => $optionValue));

            }

        }

        return $this;

    }

    /**

     * addConstraint()

     *

     * @param string|array $constraint

     * @return Zend_Tool_Project_Profile_Resource_SearchConstraints

     */

    public function addConstraint($constraint)

    {

        if (is_string($constraint)) {

            $name   = $constraint;

            $params = array();

        } elseif (is_array($constraint)) {

            $name   = $constraint['name'];

            $params = $constraint['params'];

        }

        $constraint = $this->_makeConstraint($name, $params);

        array_push($this->_constraints, $constraint);

        return $this;

    }

    /**

     * getConstraint()

     *

     * @return ArrayObject

     */

    public function getConstraint()

    {

        return array_shift($this->_constraints);

    }

    /**

     * _makeConstraint

     *

     * @param string $name

     * @param mixed $params

     * @return ArrayObject

     */

    protected function _makeConstraint($name, $params)

    {

        $value = array('name' => $name, 'params' => $params);

        return new ArrayObject($value, ArrayObject::ARRAY_AS_PROPS);

    }

}