/**
 * 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
		favMsg  : 'Your favorites have been updated',    // number of selected stars
		ratingMsg  : 'Thank you for your vote'    // number of selected stars
	};
	
	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;
		var ratingparent = '<ul class="star-rating" style="margin:0px;width:'+raterwidth+'px">';
	}
	if(settings.style == 'small') {
		var raterwidth = settings.maxvalue * 10;
		var ratingparent = '<ul class="star-rating small-star" style="margin:0px;width:'+raterwidth+'px">';
	}
	if(settings.style == 'inline') {
		var raterwidth = settings.maxvalue * 10;
		var ratingparent = '<span class="inline-rating"><ul class="star-rating small-star" style="margin:0px;width:'+raterwidth+'px">';
	}
	container.append(ratingparent);
	
	// create rater
	var starWidth, starIndex, listitems = '';
	var curvalueWidth = Math.floor(100 / settings.maxvalue * settings.curvalue);
	for(var i = 0; i <= settings.maxvalue ; i++) {
		if (i == 0) {
			listitems+='<li class="current-rating" style="padding:0px;width:'+curvalueWidth+'%;">'+settings.curvalue+'/'+settings.maxvalue+'</li>';
		} else {
			starWidth = Math.floor(100 / settings.maxvalue * i);
			starIndex = (settings.maxvalue - i) + 2;
			titleRate = i+'/'+settings.maxvalue;
			titleFav = 'update favorites';
			titleRate = (settings.maxvalue == 1)?titleFav:titleRate;
			listitems+='<li class="star" style="padding:0px"><a href="#'+i+'" title="' + titleRate + '" style="width:'+starWidth+'%;z-index:'+starIndex+'">'+i+'</a></li>';
		}
	}
	container.find('.star-rating').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>'); 
	}
	var stars = jQuery(container).find('.star-rating').children('.star');
	stars.click(function()
	{
	    if(origApiUser == apiUser)
		{
		  //alert('Please login to Presto before using this feature.'); 
		  displayUserLogin();
		  return false;
		}
		if(settings.maxvalue == 1) // on / off
		{
			settings.curvalue = (settings.curvalue == 0) ? 1 : 0;
			//settings.favMsg = (settings.curvalue == 0) ? 'Added to your favorites' : 'Removed from your favorites';
			jQuery(container).find('.star-rating').children('.current-rating').css({width:(settings.curvalue*100)+'%'});
			updateUserItemsFav(container.url, settings.curvalue); return false;
			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];
			setItemRating(container.url, raterValue); return false;
			jQuery.post(container.url, { "rating": raterValue }, function(response){
				container.children('.star-rating-result').html(response)	
			});
			return false;
		}
		return true;
	});
	/* you will need this, if running solo */
	/* establish the server connection */
    /*
	var prestoConfig = {
		prestoUrl: "http://cloud.jackbe.com/presto", 
		username: "Cloud_Admin", 
		password: "Cloud_Admin",
		//username: "admin", 
		//password: "adminadmin",
		crossDomainPost: false
	}
	var connection = new Presto.Connection(prestoConfig);
    */
  var updateUserItemsFavCallback = { 
	onSuccess: function(response) {
		//console.dir(response);
		jQuery('#msg' + settings.url).html(settings.favMsg);
		jQuery('#msg' + settings.url).effect("highlight", {}, 2000);
		//$j('#prestoCloudFormMsg').html('Logged in as ' + realUserName);
    //$j('#prestoCloudFormMsg').effect("highlight", {}, 2000);
	}, 
	onFailure: function(err) { 
	    //$j('#validateTips').html('<div style="background-color:red; padding:4px;">Login Failed</div>');
		//alert('Failure:  ' +  err.message); 
		//console.dir(err);
		jQuery('#msg' + settings.url).html('Sorry, we could not update your favorites.  Please try again.');
		jQuery('#msg' + settings.url).effect("highlight", {}, 2000);
	}, 
		scope: this 
};
function updateUserItemsFav(favItem, favAction){
	//alert('value is: ' + favAction + ' for: ' + favItem);
	var favService = (1 == favAction)?'addServiceToMyFavorites':'removeServiceFromMyFavorites';
  	var requestConfig = {
		"version": "1.1", 
		"sid": "RDSService", 
		"svcVersion": "0.1", 
		"oid": favService, 
		"params": [favItem]
	}
	connection.request(requestConfig, updateUserItemsFavCallback);
}

var setItemRatingCallback = { 
	onSuccess: function(response) {
		//console.dir(response);
		jQuery('#msg' + settings.url).html(settings.ratingMsg);
		jQuery('#msg' + settings.url).effect("highlight", {}, 2000);
	}, 
	onFailure: function(err) { ;
		//alert('Failure:  ' +  err.message); 
		//console.dir(err);
		jQuery('#msg' + settings.url).html('Sorry, we could not register your vote.  Please try again.');
		jQuery('#msg' + settings.url).effect("highlight", {}, 2000);
	}, 
		scope: this 
};
function setItemRating(serviceId, rating){
	var requestConfig = {
		"version": "1.1", 
		"sid": "RDSService", 
		"svcVersion": "0.1", 
		"oid": "addFeedbackForEntity", 
		"params": [serviceId, "Service", "", rating]
	}
	connection.request(requestConfig, setItemRatingCallback);
}

	return this; // strict warning: anonymous function does not always return a value. fix?
}