/**
 * jQuery Ajax Rater Plugin
 *
 * This rater is based on the code Ritesh Agrawal did. Unfortunatly his CSS and the hover technique breaks in some browsers.
 * So i thought, why not use the best CSS star-rater known to man kind and throw it in the mix.
 * I have used the CSS and technique from Komodo Media since it is stable and tested on many, many browsers.
 *
 * This rater compared, has no cancel button. But i think we can live with that :)
 * To avoid conflicts i have changed the function name.
 * 
 * Licensed under The MIT License
 * 
 * @version     1.0
 * @since       03.01.2007
 * @author      Kjell Bublitz <m3nt0r.de@gmail.com
 * @link        http://www.m3nt0r.de/devel/raterDemo/ Demonstration and Documentation
 * @link        http://php.scripts.psu.edu/rja171/widgets/rating.php Based on Ritesh Agrawal Star Rating System
 * @link        http://komodomedia.com/blog/index.php/2007/01/20/css-star-rating-redux/ The Komodo Media CSS Rater Blogpost
 * @license     http://www.opensource.org/licenses/mit-license.php MIT 
 * @package     jQuery Plugins
 * @subpackage  Rater
 */ 

/**
 * Usage: $('#rating').rater('your_servlet', {style:'basic', maxvalue:5, curvalue:0});
 *  
 * @param url The address you want to post the result to. 
 * @param options The style and value attributes
 *
 * Valid options:
 * ---------------------------------------
 *       style:       'basic', 'inline' OR 'small'
 *       maxvalue:    the maximum value / number of stars
 *       curvalue:    the initial value / selected stars
 */ 
jQuery.fn.rater = function(url, options)
{
	if(url == null) return;
	var settings = {
		url       : url, // post changes to 
		maxvalue  : 5,   // max number of stars
		curvalue  : 0,    // number of selected stars
		locked    : 0	// возможность голосовать
	};
	
	if(options) { jQuery.extend(settings, options); };
	jQuery.extend(settings, {cancel: (settings.maxvalue > 1) ? true : false});
	
	var container = jQuery(this);
	jQuery.extend(container, { averageRating: settings.curvalue, url: settings.url });

	if(!settings.style || settings.style == null || settings.style == 'basic') {
		var raterwidth = settings.maxvalue * 25;
//		if(settings.locked == 0)
			var ratingparent = '<ul class="star-rating" style="width:'+raterwidth+'px">';
//		else
//			var ratingparent = '<ul class="star-rating-locked" style="width:'+raterwidth+'px">';
		//alert(raterwidth);
	}
	container.append(ratingparent);
	
	// create rater
	var starWidth, starIndex, listitems = '';
	var curvalueWidth = Math.floor((settings.maxvalue * 25) / settings.maxvalue * settings.curvalue);
	for(var i = 0; i <= settings.maxvalue ; i++) {
		if (i == 0) {
//			if(settings.locked == 0)
				listitems+='<li class="current-rating" style="width:'+curvalueWidth+'px;">'+settings.curvalue+'/'+settings.maxvalue+'</li>';
//			else
//				listitems+='<li class="current-rating" title="'+settings.curvalue+'/'+settings.maxvalue+'"style="top:-2px; width:'+(curvalueWidth - 16)+'px;">'+settings.curvalue+'/'+settings.maxvalue+'</li>';
		} else {
//			if(settings.locked == 0){
				starWidth = Math.floor((settings.maxvalue * 25) / settings.maxvalue * i);
				starIndex = (settings.maxvalue - i) + 2;
				listitems+='<li class="star"><a href="#'+i+'" title="'+i+'/'+settings.maxvalue +'" style="width:'+starWidth+'px;z-index:'+starIndex+'">'+i+'</a></li>';
//			}
		}
		if(i == settings.maxvalue && settings.locked == 1){
			starIndex = (settings.maxvalue - i) + 2000;
			listitems+='<li class="empty" style="width:'+raterwidth+'px; z-index:'+starIndex+'"></li>';
		}
	}
//	if(settings.locked == 0){
//		alert(listitems);
		container.find('.star-rating').append(listitems); // i am using find here, because the span wrapped in the small style would break children()
//	}
//	else{
		//alert(listitems);
//		container.find('.star-rating-locked').append(listitems); // i am using find here, because the span wrapped in the small style would break children()
//	}

	if(settings.maxvalue > 1) // add a container for the ajax result
	{
		container.append('<span class="star-rating-result"></span>'); 
	}
//	if(settings.locked == 0)
		var stars = jQuery(container).find('.star-rating').children('.star');
//	else
//		var stars = jQuery(container).find('.star-rating-locked').children('.star');
//	if(settings.locked == 0){
		stars.click(function()
		{
			if(settings.maxvalue == 1) // on / off
			{
				settings.curvalue = (settings.curvalue == 0) ? 1 : 0;
				jQuery(container).find('.star-rating').children('.current-rating').css({width:(settings.curvalue*100)+'%'});
				jQuery.post(container.url, { "rating": settings.curvalue });
				return false;
			}
			else
			{
				
				settings.curvalue = stars.index(this) + 1;
				raterValue = jQuery(this).children('a')[0].href.split('#')[1];
				jQuery.post(container.url, { "rating": raterValue }, function(response){
//					alert(response);
//					container.children('.star-rating-result').html(response)	
					rateSuccess(response);
				});
				return false;
			}
			return true;
		});
//	}
//	else{
//		stars.click(function(event){
//			event.preventDefault();
//		});
//	}
	return this; // strict warning: anonymous function does not always return a value. fix?
}