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<?php
/**
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @package       Cake.Core
 * @since         CakePHP(tm) v 0.2.9
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

App::uses('CakeLog', 'Log');
App::uses('Dispatcher', 'Routing');
App::uses('Router', 'Routing');
App::uses('Set', 'Utility');
App::uses('CakeLog', 'Log');

/**
 * Object class provides a few generic methods used in several subclasses.
 *
 * Also includes methods for logging and the special method RequestAction,
 * to call other Controllers' Actions from anywhere.
 *
 * @package       Cake.Core
 */
class Object {

/**
 * Constructor, no-op
 *
 */
        public function __construct() {
        }

/**
 * Object-to-string conversion.
 * Each class can override this method as necessary.
 *
 * @return string The name of this class
 */
        public function toString() {
                $class = get_class($this);
                return $class;
        }

/**
 * Calls a controller's method from any location. Can be used to connect controllers together
 * or tie plugins into a main application. requestAction can be used to return rendered views
 * or fetch the return value from controller actions.
 *
 * Under the hood this method uses Router::reverse() to convert the $url parameter into a string
 * URL. You should use URL formats that are compatible with Router::reverse()
 *
 * #### Passing POST and GET data
 *
 * POST and GET data can be simulated in requestAction. Use `$extra['url']` for
 * GET data. The `$extra['data']` parameter allows POST data simulation.
 *
 * @param string|array $url String or array-based URL. Unlike other URL arrays in CakePHP, this
 *    URL will not automatically handle passed and named arguments in the $url parameter.
 * @param array $extra if array includes the key "return" it sets the AutoRender to true. Can
 *    also be used to submit GET/POST data, and named/passed arguments.
 * @return mixed Boolean true or false on success/failure, or contents
 *    of rendered action if 'return' is set in $extra.
 */
        public function requestAction($url, $extra = array()) {
                if (empty($url)) {
                        return false;
                }
                if (($index = array_search('return', $extra)) !== false) {
                        $extra['return'] = 0;
                        $extra['autoRender'] = 1;
                        unset($extra[$index]);
                }
                $arrayUrl = is_array($url);
                if ($arrayUrl && !isset($extra['url'])) {
                        $extra['url'] = array();
                }
                if ($arrayUrl && !isset($extra['data'])) {
                        $extra['data'] = array();
                }
                $extra += array('autoRender' => 0, 'return' => 1, 'bare' => 1, 'requested' => 1);
                $data = isset($extra['data']) ? $extra['data'] : null;
                unset($extra['data']);

                if (is_string($url) && strpos($url, Router::fullBaseUrl()) === 0) {
                        $url = Router::normalize(str_replace(Router::fullBaseUrl(), '', $url));
                }
                if (is_string($url)) {
                        $request = new CakeRequest($url);
                } elseif (is_array($url)) {
                        $params = $url + array('pass' => array(), 'named' => array(), 'base' => false);
                        $params = $extra + $params;
                        $request = new CakeRequest(Router::reverse($params));
                }
                if (isset($data)) {
                        $request->data = $data;
                }

                $dispatcher = new Dispatcher();
                $result = $dispatcher->dispatch($request, new CakeResponse(), $extra);
                Router::popRequest();
                return $result;
        }

/**
 * Calls a method on this object with the given parameters. Provides an OO wrapper
 * for `call_user_func_array`
 *
 * @param string $method Name of the method to call
 * @param array $params Parameter list to use when calling $method
 * @return mixed Returns the result of the method call
 */
        public function dispatchMethod($method, $params = array()) {
                switch (count($params)) {
                        case 0:
                                return $this->{$method}();
                        case 1:
                                return $this->{$method}($params[0]);
                        case 2:
                                return $this->{$method}($params[0], $params[1]);
                        case 3:
                                return $this->{$method}($params[0], $params[1], $params[2]);
                        case 4:
                                return $this->{$method}($params[0], $params[1], $params[2], $params[3]);
                        case 5:
                                return $this->{$method}($params[0], $params[1], $params[2], $params[3], $params[4]);
                        default:
                                return call_user_func_array(array(&$this, $method), $params);
                }
        }

/**
 * Stop execution of the current script. Wraps exit() making
 * testing easier.
 *
 * @param int|string $status see http://php.net/exit for values
 * @return void
 */
        protected function _stop($status = 0) {
                exit($status);
        }

/**
 * Convenience method to write a message to CakeLog. See CakeLog::write()
 * for more information on writing to logs.
 *
 * @param string $msg Log message
 * @param int $type Error type constant. Defined in app/Config/core.php.
 * @param null|string|array $scope The scope(s) a log message is being created in.
 *    See CakeLog::config() for more information on logging scopes.
 * @return bool Success of log write
 */
        public function log($msg, $type = LOG_ERR, $scope = null) {
                if (!is_string($msg)) {
                        $msg = print_r($msg, true);
                }

                return CakeLog::write($type, $msg, $scope);
        }

/**
 * Allows setting of multiple properties of the object in a single line of code. Will only set
 * properties that are part of a class declaration.
 *
 * @param array $properties An associative array containing properties and corresponding values.
 * @return void
 */
        protected function _set($properties = array()) {
                if (is_array($properties) && !empty($properties)) {
                        $vars = get_object_vars($this);
                        foreach ($properties as $key => $val) {
                                if (array_key_exists($key, $vars)) {
                                        $this->{$key} = $val;
                                }
                        }
                }
        }

/**
 * Merges this objects $property with the property in $class' definition.
 * This classes value for the property will be merged on top of $class'
 *
 * This provides some of the DRY magic CakePHP provides. If you want to shut it off, redefine
 * this method as an empty function.
 *
 * @param array $properties The name of the properties to merge.
 * @param string $class The class to merge the property with.
 * @param bool $normalize Set to true to run the properties through Hash::normalize() before merging.
 * @return void
 */
        protected function _mergeVars($properties, $class, $normalize = true) {
                $classProperties = get_class_vars($class);
                foreach ($properties as $var) {
                        if (
                                isset($classProperties[$var]) &&
                                !empty($classProperties[$var]) &&
                                is_array($this->{$var}) &&
                                $this->{$var} != $classProperties[$var]
                        ) {
                                if ($normalize) {
                                        $classProperties[$var] = Hash::normalize($classProperties[$var]);
                                        $this->{$var} = Hash::normalize($this->{$var});
                                }
                                $this->{$var} = Hash::merge($classProperties[$var], $this->{$var});
                        }
                }
        }

}