var config = new Object();
var start = 0;
var all_tags = [];
var tag_counts = [];
var cloud = new Object();

function glc(el) {
	return (el.lastChild && el.lastChild.nodeName != '#text') ? glc(el.lastChild) : el
}

var params = glc(document.lastChild).getAttribute('src').replace(/.*\?/, '');

params = params.split("&");

for(var i=0; i<params.length; i++) {
	var tmp = params[i].split("=");
	config[tmp[0]] = unescape(tmp[1]);
}

if(typeof(config.minsize) == 'undefined') config.minsize = '120';
if(typeof(config.maxsize) == 'undefined') config.maxsize = '280';
if(typeof(config.math) == 'undefined') config.math = 'log';

var url_base = ((typeof(config.url) == 'undefined') ?
	('http://' + document.domain + '/') : ('http://' + config.url + '/'));

switch(config.css) {
	case ('default'):
		document.write('<link rel="stylesheet" type="text/css" ' +
		'href="http://otvet.us/pizdecblya/tumblr/default.css" />');
	break;
	case ('flickr'):
		document.write('<link rel="stylesheet" type="text/css" ' +
		'href="http://otvet.us/pizdecblya/tumblr/flickr.css" />');
	break;
}

document.write(
	'<div id="tag_cloud">' + 
		'<div id="loading_tag_cloud">Loading tags...</div>' +
		'<ul id="tag_list"></ul>' + 
	'</div>'
);

$(document).ready(function() {
	
	function sortNum(a, b) {return (a - b);}
	function sortByValue(keyArray, valueMap) {
		return keyArray.sort(function(a,b){return valueMap[a]-valueMap[b];});
	}
	function getProperties (obj) {
		var properties = [];
		for (var property in obj) properties.push(property);
		return properties;
	}
	function getTags() {
		$.getJSON(url_base+'api/read/json?callback=?&num=50&start='+start, function(data)	{
			$(data.posts).each(function(i, post) {
				$(post.tags).each(function(i, tag) {
					if(typeof(tag) == 'string') all_tags.push(tag);
				});
			});
			if (start+50 < data['posts-total'])	{
				start = start + 50;
				getTags();
			} else {
				getCloud();
			}
		});
	}
	function getCloud()	{
		$(all_tags).each(function(i, tag)	{
			cloud[tag] = (cloud[tag] ? cloud[tag] + 1 : 1);
		});
		var raw_cloud = new Object;
		for(tag in cloud) {raw_cloud[tag] = cloud[tag];}
		if(config.math == 'log') {
			for(tag in cloud) {cloud[tag] = Math.log(cloud[tag]);}
		}
		if(config.order == 'frequency') {
			var cloudSorted = new Object();
			var cloudKeys = getProperties(cloud);
			var sortedTags = sortByValue(cloudKeys, cloud).reverse();
			for (k in sortedTags) {
				cloudSorted[sortedTags[k]] = cloud[sortedTags[k]];
			}
			cloud = cloudSorted;
		} else if(config.order == 'alphabetical') {
			var cloudSorted = new Object();
			var cloudKeys = getProperties(cloud);
			var sortedTags = cloudKeys.sort();
			for (k in sortedTags) {
				cloudSorted[sortedTags[k]] = cloud[sortedTags[k]];
			}
			cloud = cloudSorted;
		}

		size_range = config.maxsize - config.minsize;
		for (j in cloud) tag_counts.push(cloud[j]);
		tag_counts.sort(sortNum);
		min_count = tag_counts[0];
		max_count = tag_counts[tag_counts.length - 1];
		slope = size_range / (max_count - min_count);
		count = 0
		for (tag in cloud) {
			count++;
			if(typeof(config.limit) != 'undefined' && 
			config.limit != 'none' && 
			count > config.limit) {
				break;
			}
			font_size = Math.round(slope*cloud[tag]-(slope*min_count-config.minsize));
			title = (raw_cloud[tag] == 1 ? raw_cloud[tag] + ' post' : raw_cloud[tag] + ' posts');
			link = '<a href="'+url_base+'tagged/'+tag+'" title="'+title+'">'+tag+'</a>';
			output = '<li style="font-size:'+font_size+'%;">'+link+' </li>';
			$("#tag_list").append(output);
		}
		$("#loading_tag_cloud").html('');
	}
	getTags();
		
});