// 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) {
	
	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
    cancel		: false,
    id				: 0,
    blocked		: false
  };
	
  if(options) {
    jQuery.extend(settings, options);
  };
  settings.cancel = settings.maxvalue > 1 && settings.cancel==true ? true : false;
   
   
  var container = jQuery(this);
	
	jQuery.extend(container, {
    averageRating: settings.curvalue,
    url: settings.url
  });
  settings.increment = (settings.increment < .75) ? .5 : 1;
  var s = 0;
	for(var i= 0; i <= settings.maxvalue ; i++){
    if (i == 0) {
	    if(settings.cancel == true){
				var div = '<div class="cancel"><a href="#0" title="Cancel Rating">Cancel Rating</a></div>';
        container.empty().append(div);
      }
    } else {
      var $div = $('<div class="star"></div>')
        .append('<a href="#'+i+'" title="Bewerte mit '+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');
	
	//quick and dirty
  if(settings.blocked==true) {
		stars.slice(0,settings.curvalue / settings.increment).addClass('on').end();	
  }
	
  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.blocked==false) {
			var rateobject = this;
			var loggedin = true;
			$.ajax({
				type: "POST",
				timeout: 7000,
				url: '/includes/ax/userstatus.ax.php',
				success: function(result) {
					if(result!='online') {
						$('#logcall').val('false');
						$.blockUI({ message: $('#loginForm') });									
					} else {
			      $.ajax({
								type: "POST",
								timeout: 7000,
								data: {"rating": jQuery(rateobject).children('a')[0].href.split('#')[1], id: settings.id},
								url: container.url,
								success: function(responseXML) {
									$.each( $("RATING", responseXML), function(){
										new_value = this.getAttribute('value');
									});
									
									var text = $("RATING", responseXML).text();
									
									if(text=='OK') {
										settings.curvalue = (stars.index(rateobject) * settings.increment) + settings.increment;
										stars.slice(0,settings.curvalue / settings.increment).addClass('on').end();
										$('#star_text').html('Danke für deine Bewertung!');
										settings.blocked = true;
									} else if (text=='ALREADY RATED') {
										$('#star_text').html('Abstimmen nur einmal pro Video möglich!');
									}
								}
							});
						return false;	
					}
				}
			});
		}

		return true;
			
  });

  // 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.
			if(settings.blocked==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(settings.blocked==false) {
				stars
					.filter('.on').removeClass('on').end()
					.filter('.hover').removeClass('hover').end();
			}
		},
		reset: function(){ // Reset the stars to the default index.
			if(settings.blocked==false) {
				stars.slice(0,settings.curvalue / settings.increment).addClass('on').end();
			}
		}
	};    
	event.reset();
	
	return(this);	

};