// JavaScript Document
/*************************************************
Star Rating System
First Version: 21 November, 2006
Second Version: 17 May, 2007
Author: Ritesh Agrawal (http://php.scripts.psu.edu/rja171/widgets/rating.php)
        email: ragrawal [at] gmail (dot) com
Inspiration: Will Stuckey's star rating system (http://sandbox.wilstuckey.com/jquery-ratings/)
Half-Star Addition: Karl Swedberg
Demonstration: http://examples.learningjquery.com/rating/
Usage: $('#rating').rating('url-to-post.php', {maxvalue:5, curvalue:0});

arguments
url : required -- post changes to 
options
  increment : 1, // value to increment by
	maxvalue: number of stars
	curvalue: number of selected stars
	

************************************************/

function updateRating(data){
	/*message = $("div.sysmessage", data);
	alert($("p.info", message).text());
	alert($("p.error", message).text());
	var curval = 0 + $("span.user-rating", data).text();
	$('#rating').rating('index.php', {maxvalue:5, curvalue:curval, increment:.5, stopped: true});*/
}
	
jQuery.fn.rating = function(url, options) {
	
	if(url == null) return;
	
	var settings = {
    url : url, // post changes to 
    increment : 1, // value to increment by
    maxvalue  : 5,   // max number of stars
    curvalue  : 0,    // number of selected stars
    pid : 0,
    cid : 0,
    action: 'addProductUserRating',
    stopped: false
  };
	
	jQuery.extend(settings, {stopped: false});

  	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,
    pid: settings.pid,
    cid: settings.cid,
    action: settings.action,
    stopped: settings.stopped
  });
  settings.increment = (settings.increment < .75) ? .5 : 1;
  var s = 0;
  
	for(var i= 0; i <= settings.maxvalue ; i++){
		if(i > 0)
		{ 
	      var $div = $('<div class="star"></div>')
	        .append('<a href="#'+i+'" title="'+i+'/'+settings.maxvalue+'">'+i+'</a>')
	        .appendTo(container);
	      if (settings.increment == .5) {
	        if (s%2) {
	          $div.addClass('star-left');
	        } else {
	          $div.addClass('star-right');
	        }
	      }
	    }
    i=i-1+settings.increment;
    s++;
  }
	
	var stars = jQuery(container).children('.star');
  var cancel = jQuery(container).children('.cancel');
	
  stars
    .mouseover(function(){
      event.drain();
      event.fill(this);
    })
    .mouseout(function(){
      event.drain();
      event.reset();
    })
    .focus(function(){
      event.drain();
      event.fill(this);
    })
    .blur(function(){
      event.drain();
      event.reset();
    });
    

  stars.click(function(){
		if(container.stopped == false)
		{		
      		settings.curvalue = (stars.index(this) * settings.increment) + settings.increment;
      		//url = container.url + "?" + "&rating=" + (2*jQuery(this).children('a')[0].href.split('#')[1])+"&cid=" + container.cid, pid: container.pid, action: container.action
      		url = container.url + (2*jQuery(this).children('a')[0].href.split('#')[1]);
      		$(location).attr('href',url);
        	/*jQuery.get(container.url, 
		  			{rating: (2*jQuery(this).children('a')[0].href.split('#')[1]), cid: container.cid, pid: container.pid, action: container.action},
		  			function(data){updateRating(data);}
				);
	  		return false;*/
	  	}
		return true;
			
  });

	var event = {
			fill: function(el){ // fill to the current mouse position.
				if(container.stopped == false)
				{
				var index = stars.index(el) + 1;
				stars
					.children('a').css('width', '100%').end()
					.slice(0,index).addClass('hover').end();
				}
			},
			drain: function() { // drain all the stars.
				if(container.stopped == false)
				{
				stars
					.filter('.on').removeClass('on').end()
					.filter('.hover').removeClass('hover').end();
				}
			},
			reset: function(){ // Reset the stars to the default index.
				if(container.stopped == false)
					stars.slice(0,settings.curvalue / settings.increment).addClass('on').end();
			}
	};    
	event.reset();
	
	return(this);	

};