<?php
require_once 'Api/Kwick/Config.php';
require_once 'Api/Kwick/Request.php';
require_once 'Api/Log.php';

class Api_Controller {
    private $apiRequest;

    public function  __construct(Api_Kwick_Request $request) {
        $this->apiRequest = $request;
    }

    public function getService() {
        return $this->getRequestParameter('service', Api_Kwick_Request::DEFAULT_SERVICE);
    }

    public function getMethod() {
        return $this->getRequestParameter('method', Api_Kwick_Request::DEFAULT_METHOD);
    }

    public function getSecret() {
        return $this->getRequestParameter('secret');
    }

    public function getRequestParameter($name, $default = null) {
        $parameter = $default;

        if (isset($_GET[$name]) && !empty($_GET[$name])) {
            $parameter = $_GET[$name];
        }

        if (isset($_POST[$name]) && !empty($_POST[$name])) {
            $parameter = $_POST[$name];
        }

        return $parameter;
    }

    public function prepareParametersOnRequest() {
        foreach (array($_GET, $_POST) as $params) {
            foreach ($params as $name => $value) {
                if (in_array($name, array('service', 'method', 'secret')) || empty($value)) {
                    continue;
                }

                $this->apiRequest->setParameter($name, $value);
            }
        }
    }

    public function dispatch() {
        Api_Log::log('Dispatching ' . $this->getService() . '.' . $this->getMethod());
        $this->apiRequest->setService($this->getService());
        $this->apiRequest->setMethod($this->getMethod());
        $secret = $this->getSecret();
        
        if (null !== $secret) {
            Api_Log::log('Setting user secret: ' . $secret);
            $this->apiRequest->setSecret($secret);
        }

        $this->prepareParametersOnRequest();
        
        try {
            $data = array('response' => json_decode($this->apiRequest->send()));
        } catch (Exception $e) {
            $data = array('exception' => $e->__toString());
        }

        $data['log'] = Api_Log::get();
//        echo str_replace('\\', '\\\\', json_encode($data));
        echo json_encode($data);
    }
}