<?php
/**
 * Simple AJAX stub: Rating
 *
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage base
 */

WBClass::load('WBAjax');

/**
 * Simple AJAX stub: Rating
 *
 * Allow to call method via AJAX request
 *
 * @version 0.1.1
 * @package WB
 * @subpackage base
 */
class WBAjax_Rate extends WBAjax
{

    /**
     * Rating
     * @var WBDatasource_Rate
     */
    protected $rate;

    /**
     * second construcotr
     *
     * Called by constructer of super class.
     *
     * @see include/WB/WBAjax#init()
     */
    protected function init()
    {
        $this->rate  =   WBClass::create('WBDatasource_Rate');
    }

    /**
     * Add rating
     *
     * Save rating and optionally render current rating
     *
     * @see display()
     * @return string HTML
     */
    protected function add()
    {
        $namespace  =   $this->req->get('namespace', '');
        $xid        =   $this->req->get('xid', 0);
        $value      =   $this->req->get('value', 0);
        $display    =   intval($this->req->get('display', 0));

        try{
            $this->rate->setNamespace($namespace);
            $this->rate->setXId($xid);
            $this->rate->add($value);
        }
        catch (WBException $e) {
            if (1 <= $display) {
                return $this->display();
            }
            return 'failed';
        }
        if (1 <= $display) {
            return $this->display();
        }
        return 'OK';
    }

    /**
     * Render current rating
     *
     * Load templates, set rates as variables and get parsed template
     */
    private function display()
    {
        $ns     =   $this->rate->getNamespace();
        $xid    =   $this->rate->getXid();

        $this->loadTemplates($ns);

        $rate   =   array();
        if (!empty($xid) && !empty($ns)) {
            $rate   =   $this->rate->get();
        }

        $rate['avg']    =   sprintf('%0.1f', $rate['average']);
        for ($i = 1; $i <= $rate['average']; ++$i) {
            $rate[$i . '_set']   =   'set';
        }

        $this->tmpl->addGlobalVars($rate, 'rate_');
        return $this->tmpl->getParsedTemplate('snippet');
    }
}