//copyright 2008 Jarrett Vance
//http://jvance.com
// modified by Mockey, 2011
$.fn.rater = function(options) {
	var opts = $.extend({}, $.fn.rater.defaults, options);
	return this.each(function() {
		var $this = $(this);
		var $on = $this.find('.ui-rater-starsOn');
		var $off = $this.find('.ui-rater-starsOff');
		$this.removeAttr('title');
		opts.size = $on.height();
		if (opts.rating == undefined) opts.rating = $on.width() / opts.size;
		if (opts.id == undefined) opts.id = $this.attr('id');
		$on.width(opts.rating * opts.size);
		if ($this.data('rated') == undefined) $this.data('rated', []);
        
		if ($.data($off.get(0), "events") != undefined) {
			$off.unbind('click').unbind('mousemove').unbind('mouseenter').unbind('mouseleave');
			$off.css('cursor', 'default'); $on.css('cursor', 'default');
		}
		
		if ($.inArray(opts.id, $this.data('rated')) == -1) {
			$off.mousemove(function(e) {
				var left = e.clientX - $off.offset().left;
				var width = $off.width() - ($off.width() - left);
				width = Math.ceil(width / (opts.size / opts.step)) * opts.size / opts.step;
				$on.width(width);
			}).hover(function(e) { $on.addClass('ui-rater-starsHover'); }, function(e) {
				$on.removeClass('ui-rater-starsHover'); $on.width(opts.rating * opts.size);
			}).click(function(e) {
				var r = Math.round($on.width() / $off.width() * (opts.units * opts.step)) / opts.step;
				$off.unbind('click').unbind('mousemove').unbind('mouseenter').unbind('mouseleave');
				$off.css('cursor', 'default'); $on.css('cursor', 'default');
				$.fn.rater.rate($this, opts, r);
			}).css('cursor', 'pointer'); $on.css('cursor', 'pointer');
		}
  });
};

$.fn.rater.defaults = {
	postHref: location.href,
	units: 5,
	step: 1
};

$.fn.rater.rate = function($this, opts, rating) {
	var $on = $this.find('.ui-rater-starsOn');
	var $off = $this.find('.ui-rater-starsOff');
	$off.fadeTo(600, 0.4, function() {
		$.ajax({
			url: opts.postHref,
			type: 'POST',
			data: 'id=' + opts.id + '&rating=' + rating,
			complete: function(req) {
				if (req.status == 200) { //success
					opts.rating = parseFloat(req.responseText);
					$this.data('rated').push(opts.id);
					if (opts.callbackFunc != undefined) opts.callbackFunc(opts.rating);
					$off.fadeTo(600, 0.1, function() {
						$on.removeClass('ui-rater-starsHover').width(opts.rating * opts.size);
						//var $count = $this.find('.ui-rater-rateCount');
						//$count.text(parseInt($count.text()) + 1);
						$this.find('.ui-rater-rating').text(
							'average: ' + opts.rating //.toFixed(1)
						);
						$off.fadeTo(600, 1);
						$this.attr('title', 'Your rating: ' + rating.toFixed(0));
					});
				} else { //failure
					alert(req.responseText);
					$on.removeClass('ui-rater-starsHover').width(opts.rating * opts.size);
					$this.rater(opts);
					$off.fadeTo(2200, 1);
        }
			}
		});
	});
};