<?php

class App_Controller_Plugin_LangSelector extends Zend_Controller_Plugin_Abstract
{
	public function preDispatch(Zend_Controller_Request_Abstract $request)
    {
        $session = new Zend_Session_Namespace('session');

            $lang = $request->getParam('lang','');
            $langLocale = '';

            switch($lang) {
                case "it":
                    $langLocale = 'it'; break;
                case "en":
                    $langLocale = 'en'; break;
                default:
                    $langLocale = isset($session->lang) ? $session->lang : Zend_Registry::get('Zend_Locale')->getLanguage();
            }

            $locale = new Zend_Locale($langLocale);
            Zend_Registry::set('Zend_Locale', $locale);

            $translationPath = dirname( APPLICATION_PATH ) . DIRECTORY_SEPARATOR . 'languages' . DIRECTORY_SEPARATOR . $langLocale;
            $translate = new Zend_Translate('array', $translationPath, $locale);

            $session->lang = $langLocale;

            Zend_Registry::set('Zend_Translate', $translate);
            Zend_Validate_Abstract::setDefaultTranslator($translate);
            Zend_Form::setDefaultTranslator($translate);

    }
}