<?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_Gdata

 * @subpackage Gdata

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

 */

/**

 * Zend_Gdata_App_Util

 */

require_once 'Zend/Gdata/App/Util.php';

/**

 * Provides a mechanism to build a query URL for Gdata services.

 * Queries are not defined for APP, but are provided by Gdata services

 * as an extension.

 *

 * @category   Zend

 * @package    Zend_Gdata

 * @subpackage Gdata

 * @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_Gdata_Query

{

    /**

     * Query parameters.

     *

     * @var array

     */

    protected $_params = array();

    /**

     * Default URL

     *

     * @var string

     */

    protected $_defaultFeedUri = null;

    /**

     * Base URL

     * TODO: Add setters and getters

     *

     * @var string

     */

    protected $_url = null;

    /**

     * Category for the query

     *

     * @var string

     */

    protected $_category = null;

    /**

     * Create Gdata_Query object

     */

    public function __construct($url = null)

    {

        $this->_url = $url;

    }

    /**

     * @return string querystring

     */

    public function getQueryString()

    {

        $queryArray = array();

        foreach ($this->_params as $name => $value) {

            if (substr($name, 0, 1) == '_') {

                continue;

            }

            $queryArray[] = urlencode($name) . '=' . urlencode($value);

        }

        if (count($queryArray) > 0) {

            return '?' . implode('&', $queryArray);

        } else {

            return '';

        }

    }

    /**

     *

     */

    public function resetParameters()

    {

        $this->_params = array();

    }

    /**

     * @return string url

     */

    public function getQueryUrl()

    {

        if ($this->_url == null) {

            $url = $this->_defaultFeedUri;

        } else {

            $url = $this->_url;

        }

        if ($this->getCategory() !== null) {

            $url .= '/-/' . $this->getCategory();

        }

        $url .= $this->getQueryString();

        return $url;

    }

    /**

     * @param string $name

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setParam($name, $value)

    {

        $this->_params[$name] = $value;

        return $this;

    }

    /**

     * @param string $name

     */

    public function getParam($name)

    {

        return $this->_params[$name];

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setAlt($value)

    {

        if ($value != null) {

            $this->_params['alt'] = $value;

        } else {

            unset($this->_params['alt']);

        }

        return $this;

    }

    /**

     * @param int $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setMaxResults($value)

    {

        if ($value != null) {

            $this->_params['max-results'] = $value;

        } else {

            unset($this->_params['max-results']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setQuery($value)

    {

        if ($value != null) {

            $this->_params['q'] = $value;

        } else {

            unset($this->_params['q']);

        }

        return $this;

    }

    /**

     * @param int $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setStartIndex($value)

    {

        if ($value != null) {

            $this->_params['start-index'] = $value;

        } else {

            unset($this->_params['start-index']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setUpdatedMax($value)

    {

        if ($value != null) {

            $this->_params['updated-max'] = Zend_Gdata_App_Util::formatTimestamp($value);

        } else {

            unset($this->_params['updated-max']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setUpdatedMin($value)

    {

        if ($value != null) {

            $this->_params['updated-min'] = Zend_Gdata_App_Util::formatTimestamp($value);

        } else {

            unset($this->_params['updated-min']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setPublishedMax($value)

    {

        if ($value !== null) {

            $this->_params['published-max'] = Zend_Gdata_App_Util::formatTimestamp($value);

        } else {

            unset($this->_params['published-max']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setPublishedMin($value)

    {

        if ($value != null) {

            $this->_params['published-min'] = Zend_Gdata_App_Util::formatTimestamp($value);

        } else {

            unset($this->_params['published-min']);

        }

        return $this;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setAuthor($value)

    {

        if ($value != null) {

            $this->_params['author'] = $value;

        } else {

            unset($this->_params['author']);

        }

        return $this;

    }

    /**

     * @return string rss or atom

     */

    public function getAlt()

    {

        if (array_key_exists('alt', $this->_params)) {

            return $this->_params['alt'];

        } else {

            return null;

        }

    }

    /**

     * @return int maxResults

     */

    public function getMaxResults()

    {

        if (array_key_exists('max-results', $this->_params)) {

            return intval($this->_params['max-results']);

        } else {

            return null;

        }

    }

    /**

     * @return string query

     */

    public function getQuery()

    {

        if (array_key_exists('q', $this->_params)) {

            return $this->_params['q'];

        } else {

            return null;

        }

    }

    /**

     * @return int startIndex

     */

    public function getStartIndex()

    {

        if (array_key_exists('start-index', $this->_params)) {

            return intval($this->_params['start-index']);

        } else {

            return null;

        }

    }

    /**

     * @return string updatedMax

     */

    public function getUpdatedMax()

    {

        if (array_key_exists('updated-max', $this->_params)) {

            return $this->_params['updated-max'];

        } else {

            return null;

        }

    }

    /**

     * @return string updatedMin

     */

    public function getUpdatedMin()

    {

        if (array_key_exists('updated-min', $this->_params)) {

            return $this->_params['updated-min'];

        } else {

            return null;

        }

    }

    /**

     * @return string publishedMax

     */

    public function getPublishedMax()

    {

        if (array_key_exists('published-max', $this->_params)) {

            return $this->_params['published-max'];

        } else {

            return null;

        }

    }

    /**

     * @return string publishedMin

     */

    public function getPublishedMin()

    {

        if (array_key_exists('published-min', $this->_params)) {

            return $this->_params['published-min'];

        } else {

            return null;

        }

    }

    /**

     * @return string author

     */

    public function getAuthor()

    {

        if (array_key_exists('author', $this->_params)) {

            return $this->_params['author'];

        } else {

            return null;

        }

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Query Provides a fluent interface

     */

    public function setCategory($value)

    {

        $this->_category = $value;

        return $this;

    }

    /*

     * @return string id

     */

    public function getCategory()

    {

        return $this->_category;

    }

    public function __get($name)

    {

        $method = 'get'.ucfirst($name);

        if (method_exists($this, $method)) {

            return call_user_func(array(&$this, $method));

        } else {

            require_once 'Zend/Gdata/App/Exception.php';

            throw new Zend_Gdata_App_Exception('Property ' . $name . '  does not exist');

        }

    }

    public function __set($name, $val)

    {

        $method = 'set'.ucfirst($name);

        if (method_exists($this, $method)) {

            return call_user_func(array(&$this, $method), $val);

        } else {

            require_once 'Zend/Gdata/App/Exception.php';

            throw new Zend_Gdata_App_Exception('Property ' . $name . '  does not exist');

        }

    }

}