<?php
/**
 * HttpProxyController
 * @author Erik Amaru Ortiz <erik@colosa.com, aortiz.erik@gmail.com>
 * @package gulliver.system
 * @access private
 */
class HttpProxyController {
    
    
    /**
     * @var array - private array to store proxy data
     */
    private $__data__ = array();
    
    /**
     * @var object - private object to store the http request data 
     */
    private $__request__;

    public $jsonResponse = true;
    
    private $sendResponse = true;
    /**
     * Magic setter method
     * 
     * @param string $name
     * @param string $value
     */
    public function __set($name, $value) {
        //echo "Setting '$name' to '$value'\n";
        $this->__data__[$name] = $value;
    }

    /**
     * Magic getter method
     * 
     * @param string $name
     * @return string or NULL if the internal var doesn't exist
     */
    public function __get($name) {
        //echo "Getting '$name'\n";
        if (array_key_exists($name, $this->__data__)) {
            return $this->__data__[$name];
        }

        /*$trace = debug_backtrace();
        trigger_error(
            'Undefined property via __get(): ' . $name .
            ' in ' . $trace[0]['file'] .
            ' on line ' . $trace[0]['line'],
            E_USER_NOTICE);
        return null;*/
    }

    /**
     * Magic isset method
     * 
     * @param string $name
     */
    public function __isset($name) {
        //echo "Is '$name' set?\n";
        return isset($this->__data__[$name]);
    }

    
    /**
     * Magic unset method
     * 
     * @param string $name
     */
    public function __unset($name) {
        //echo "Unsetting '$name'\n";
        unset($this->__data__[$name]);
    }
    
    /**
     * call to execute a internal proxy method and handle its exceptions
     * 
     * @param string $name
     */
    public function call($name) 
    {
        try {
            $result = $this->$name($this->__request__);

            if (!$this->jsonResponse) {
                return null;
            }
            
            if( ! $result ) 
              $result = $this->__data__;
              
        } catch (Exception $e) {
            $result->success = false;
            $result->message = $result->msg = $e->getMessage();
            switch(get_class($e)) {
                case 'Exception':       $error = "SYSTEM ERROR"; break;
                case 'PMException':     $error = "PROCESSMAKER ERROR"; break;
                case 'PropelException': $error = "DATABASE ERROR"; break;
                case 'UserException':   $error = "USER ERROR"; break;
            }
            $result->error = $e->getMessage();
            
            $result->exception->class = get_class($e);
            $result->exception->code = $e->getCode();
            $result->exception->trace = $e->getTraceAsString();
        }

        if ($this->sendResponse) {
            print G::json_encode($result);
        }
    }
    
    /**
     * Set the http request data
     * 
     * @param array $data
     */
    public function setHttpRequestData($data)
    {
        if( is_array($data) ) {
            while( $var = each($data) )
                $this->__request__->$var['key'] = $var['value'];   
        } else 
            $this->__request__ = $data;
    }

    public function setJsonResponse($bool)
    {
        $this->jsonResponse = $bool;
    }

    /**
     * Send response to client
     * 
     * @param boolean $val
     */
    public function setSendResponse($val)
    {
        $this->sendResponse = $val;
    }
}