<?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_Controller

 * @subpackage Router

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

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

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

 */

/** Zend_Controller_Router_Route_Abstract */

require_once 'Zend/Controller/Router/Route/Abstract.php';

/**

 * Module Route

 *

 * Default route for module functionality

 *

 * @package    Zend_Controller

 * @subpackage Router

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

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

 * @see        http://manuals.rubyonrails.com/read/chapter/65

 */

class Zend_Controller_Router_Route_Module extends Zend_Controller_Router_Route_Abstract

{

    /**

     * URI delimiter

     */

    const URI_DELIMITER = '/';

    /**

     * Default values for the route (ie. module, controller, action, params)

     * @var array

     */

    protected $_defaults;

    protected $_values      = array();

    protected $_moduleValid = false;

    protected $_keysSet     = false;

    /**#@+

     * Array keys to use for module, controller, and action. Should be taken out of request.

     * @var string

     */

    protected $_moduleKey     = 'module';

    protected $_controllerKey = 'controller';

    protected $_actionKey     = 'action';

    /**#@-*/

    /**

     * @var Zend_Controller_Dispatcher_Interface

     */

    protected $_dispatcher;

    /**

     * @var Zend_Controller_Request_Abstract

     */

    protected $_request;

    public function getVersion() {

        return 1;

    }

    /**

     * Instantiates route based on passed Zend_Config structure

     */

    public static function getInstance(Zend_Config $config)

    {

        $frontController = Zend_Controller_Front::getInstance();

        $defs       = ($config->defaults instanceof Zend_Config) ? $config->defaults->toArray() : array();

        $dispatcher = $frontController->getDispatcher();

        $request    = $frontController->getRequest();

        return new self($defs, $dispatcher, $request);

    }

    /**

     * Constructor

     *

     * @param array $defaults Defaults for map variables with keys as variable names

     * @param Zend_Controller_Dispatcher_Interface $dispatcher Dispatcher object

     * @param Zend_Controller_Request_Abstract $request Request object

     */

    public function __construct(array $defaults = array(),

                Zend_Controller_Dispatcher_Interface $dispatcher = null,

                Zend_Controller_Request_Abstract $request = null)

    {

        $this->_defaults = $defaults;

        if (isset($request)) {

            $this->_request = $request;

        }

        if (isset($dispatcher)) {

            $this->_dispatcher = $dispatcher;

        }

    }

    /**

     * Set request keys based on values in request object

     *

     * @return void

     */

    protected function _setRequestKeys()

    {

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

            $this->_moduleKey     = $this->_request->getModuleKey();

            $this->_controllerKey = $this->_request->getControllerKey();

            $this->_actionKey     = $this->_request->getActionKey();

        }

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

            $this->_defaults += array(

                $this->_controllerKey => $this->_dispatcher->getDefaultControllerName(),

                $this->_actionKey     => $this->_dispatcher->getDefaultAction(),

                $this->_moduleKey     => $this->_dispatcher->getDefaultModule()

            );

        }

        $this->_keysSet = true;

    }

    /**

     * Matches a user submitted path. Assigns and returns an array of variables

     * on a successful match.

     *

     * If a request object is registered, it uses its setModuleName(),

     * setControllerName(), and setActionName() accessors to set those values.

     * Always returns the values as an array.

     *

     * @param string $path Path used to match against this routing map

     * @return array An array of assigned values or a false on a mismatch

     */

    public function match($path, $partial = false)

    {

        $this->_setRequestKeys();

        $values = array();

        $params = array();

        if (!$partial) {

            $path = trim($path, self::URI_DELIMITER);

        } else {

            $matchedPath = $path;

        }

        if ($path != '') {

            $path = explode(self::URI_DELIMITER, $path);

            if ($this->_dispatcher && $this->_dispatcher->isValidModule($path[0])) {

                $values[$this->_moduleKey] = array_shift($path);

                $this->_moduleValid = true;

            }

            if (count($path) && !empty($path[0])) {

                $values[$this->_controllerKey] = array_shift($path);

            }

            if (count($path) && !empty($path[0])) {

                $values[$this->_actionKey] = array_shift($path);

            }

            if ($numSegs = count($path)) {

                for ($i = 0; $i < $numSegs; $i = $i + 2) {

                    $key = urldecode($path[$i]);

                    $val = isset($path[$i + 1]) ? urldecode($path[$i + 1]) : null;

                    $params[$key] = (isset($params[$key]) ? (array_merge((array) $params[$key], array($val))): $val);

                }

            }

        }

        if ($partial) {

            $this->setMatchedPath($matchedPath);

        }

        $this->_values = $values + $params;

        return $this->_values + $this->_defaults;

    }

    /**

     * Assembles user submitted parameters forming a URL path defined by this route

     *

     * @param array $data An array of variable and value pairs used as parameters

     * @param bool $reset Weither to reset the current params

     * @return string Route path with user submitted parameters

     */

    public function assemble($data = array(), $reset = false, $encode = true, $partial = false)

    {

        if (!$this->_keysSet) {

            $this->_setRequestKeys();

        }

        $params = (!$reset) ? $this->_values : array();

        foreach ($data as $key => $value) {

            if ($value !== null) {

                $params[$key] = $value;

            } elseif (isset($params[$key])) {

                unset($params[$key]);

            }

        }

        $params += $this->_defaults;

        $url = '';

        if ($this->_moduleValid || array_key_exists($this->_moduleKey, $data)) {

            if ($params[$this->_moduleKey] != $this->_defaults[$this->_moduleKey]) {

                $module = $params[$this->_moduleKey];

            }

        }

        unset($params[$this->_moduleKey]);

        $controller = $params[$this->_controllerKey];

        unset($params[$this->_controllerKey]);

        $action = $params[$this->_actionKey];

        unset($params[$this->_actionKey]);

        foreach ($params as $key => $value) {

            $key = ($encode) ? urlencode($key) : $key;

            if (is_array($value)) {

                foreach ($value as $arrayValue) {

                    $arrayValue = ($encode) ? urlencode($arrayValue) : $arrayValue;

                    $url .= '/' . $key;

                    $url .= '/' . $arrayValue;

                }

            } else {

                if ($encode) $value = urlencode($value);

                $url .= '/' . $key;

                $url .= '/' . $value;

            }

        }

        if (!empty($url) || $action !== $this->_defaults[$this->_actionKey]) {

            if ($encode) $action = urlencode($action);

            $url = '/' . $action . $url;

        }

        if (!empty($url) || $controller !== $this->_defaults[$this->_controllerKey]) {

            if ($encode) $controller = urlencode($controller);

            $url = '/' . $controller . $url;

        }

        if (isset($module)) {

            if ($encode) $module = urlencode($module);

            $url = '/' . $module . $url;

        }

        return ltrim($url, self::URI_DELIMITER);

    }

    /**

     * Return a single parameter of route's defaults

     *

     * @param string $name Array key of the parameter

     * @return string Previously set default

     */

    public function getDefault($name) {

        if (isset($this->_defaults[$name])) {

            return $this->_defaults[$name];

        }

    }

    /**

     * Return an array of defaults

     *

     * @return array Route defaults

     */

    public function getDefaults() {

        return $this->_defaults;

    }

}