var getUrlShorteningRequestParams = function (b) {
	function c() {
		for (var l = 0, m = 0; m < arguments.length; m++) l = l + arguments[m] & 4294967295;
		return l
	}

	function d(l) {
		l = l = String(l > 0 ? l : l + 4294967296);
		var m;
		m = l;
		for (var o = 0, n = false, p = m.length - 1; p >= 0; --p) {
			var q = Number(m.charAt(p));
			if (n) {
				q *= 2;
				o += Math.floor(q / 10) + q % 10
			} else o += q;
			n = !n
		}
		m = m = o % 10;
		o = 0;
		if (m != 0) {
			o = 10 - m;
			if (l.length % 2 == 1) {
				if (o % 2 == 1) o += 9;
				o /= 2
			}
		}
		m = String(o);
		m += l;
		return l = m
	}

	function e(l) {
		for (var m = 5381, o = 0; o < l.length; o++) m = c(m << 5, m, l.charCodeAt(o));
		return m
	}

	function f(l) {
		for (var m = 0, o = 0; o < l.length; o++) m = c(l.charCodeAt(o), m << 6, m << 16, -m);
		return m
	}

	var h = {
		byteArray_: b,
		charCodeAt: function (l) {
			return this.byteArray_[l]
		}
	};

	h.length = h.byteArray_.length;
	var i = e(h.byteArray_);
	i = i >> 2 & 1073741823;
	i = i >> 4 & 67108800 | i & 63;
	i = i >> 4 & 4193280 | i & 1023;
	i = i >> 4 & 245760 | i & 16383;
	var j = "7";
	h = f(h.byteArray_);
	var k = (i >> 2 & 15) << 4 | h & 15;
	k |= (i >> 6 & 15) << 12 | (h >> 8 & 15) << 8;
	k |= (i >> 10 & 15) << 20 | (h >> 16 & 15) << 16;
	k |= (i >> 14 & 15) << 28 | (h >> 24 & 15) << 24;
	j += d(k);
	return j;
	return i
};

function shortify(url,callback){
	var auth_token = getUrlShorteningRequestParams(url);
	var urlEscaped = escape(url).replace(/\+/g,"%2B");

	jQuery.ajax({
		type:"POST",
		dataType:"text",
		url:"http://goo.gl/api/url?user=toolbar@google.com&url="+urlEscaped + "&auth_token=" + auth_token,
		error:function(){
			displayMessage( _( "There was an error." ) );
			return false;
		},
		success:callback
	});
}

CmdUtils.CreateCommand( {
	names: [ 'goo.gl' ],
	arguments: [ {role: 'object', nountype: noun_arb_text, label: 'url'} ],
	icon:"",
	description:'Replaces the provided url with a goo.gl short url.',
	help:"",
	author: { name: "Erik Vold", email: "erikvvold@gmail.com"},
	contributors: ["Erik Vold"],
	license: "MPL",
	version: "0.1",
	preview: function( pblock, args ) {
		pblock.innerHTML = _( "Replaces the provided url with a goo.gl short url" );

		var selectedURL = jQuery.trim( args.object.text );
		if( selectedURL.length == 0 ) selectedURL = context.focusedWindow.document.location;

		shortify( selectedURL, function( response ){
			var object = JSON.parse(response);

			if(object.short_url == undefined) pblock.innerHTML = _( object.error_message );
			else pblock.innerHTML = _( "Replaces the provided url with "+object.short_url );

			return;
		});

		return;
	},
	execute: function( args ) {
		var selectedURL = jQuery.trim( args.object.text );
		if( selectedURL.length == 0 ) selectedURL = context.focusedWindow.document.location;

		shortify( selectedURL, function( response ){
			var object = JSON.parse(response);

			if(object.short_url == undefined) pblock.innerHTML = _( object.error_message );
			else CmdUtils.setSelection( object.short_url );

			return;
		});

		return;
	}
});