// 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
	

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

jQuery.fn.rating = function(url, options) 
{

	function lala() {
		alert("OK");
	}
	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
		clickable : true,
		GameID : 0
	 };
	
	if(options) {
		jQuery.extend(settings, options);
	};
	jQuery.extend(settings, {cancel: (settings.maxvalue > 1) ? true : false});
   
   
	var container = jQuery(this);
	
	jQuery.extend(container, {
		averageRating: iCurrValue,
		url: settings.url
	});

	settings.increment = (settings.increment < .75) ? .5 : 1;
	var s = 0;

	for(var i= 0; i <= settings.maxvalue ; i++)
	{
		if (i == 0) 
		{

		} 
		else 
		{
			var $div = $('<div class="star"></div>')
				.append('<a href="#'+i+'" title="Gefa '+i+'/'+settings.maxvalue+' í einkunn.">'+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 (settings.clickable)
	{
		var rating = jQuery(this).children('a')[0].href.split('#')[1];
		$("#RatingInfo").load("/Rating/SetRating/?GameID="+settings.GameID+"&Rating="+rating);
		return true;
	}
	else
		$("#RatingInfo").text("Þú þarft að innskrá þig.");
  });

  // cancel button events
	if(cancel){
    cancel
    .mouseover(function(){
      event.drain();
      jQuery(this).addClass('on');
    })
    .mouseout(function(){
      event.reset();
      jQuery(this).removeClass('on');
    })
    .focus(function(){
      event.drain();
      jQuery(this).addClass('on');
    })
    .blur(function(){
      event.reset();
      jQuery(this).removeClass('on');
    });
      
    // click events.
    cancel.click(function(){
      event.drain();
      settings.curvalue = 0;
      jQuery.post(container.url, {
        "rating": jQuery(this).children('a')[0].href.split('#')[1] 
      });
      return false;
    });
  }
        
	var event = {
		fill: function(el){ // fill to the current mouse position.
			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.
			stars
				.filter('.on').removeClass('on').end()
				.filter('.hover').removeClass('hover').end();
		},
		reset: function(){ // Reset the stars to the default index.
	
			stars.slice(0,iCurrValue / settings.increment).addClass('on').end();
		}
	}; 
	
	event.reset();
	
	return(this);	

};