var config = require('../../configuration');
var storage = require('../../storage');
var forms = require('../../forms');
var errors = require('../../errors');
var makeError = errors.makeError;
var NS = require('../../namespaces');
var xmpp = require('xmpp');

exports.atom = {
	url: /^\/atom/,
	func: function (req, res) {
		var url = require('url').parse(req.url);
		nodeID = url.pathname.substr(url.pathname.indexOf('/', 1)+1);

		var children;
		if (nodeID && nodeID != '') {
			var md = storage.getMetadata(nodeID);
			if (md['pubsub#type'] != NS.ATOM)
				return false;

			var response = xmpp.stanza('feed', {xmlns: 'http://www.w3.org/2005/Atom'});
			res.writeHead(200, {'Content-Type': 'text/xml'});
			if (!storage.existsNode(nodeID))
				return false;

			if (md['pubsub#title'])
				response.c('title').t(md['pubsub#title']).up();
			if (md['pubsub#description'])
				response.c('subtitle').t(md['pubsub#description']).up();
			if (md['pubsub#creation_date'])
				response.c('published').t(md['pubsub#creation_date']).up();

			children = storage.getItems(nodeID);
			if (typeof children == 'number')
				return false;

			for (var i in children)
				response.cnode(children[i].content).up();
		} else {
			res.writeHead(200, {'Content-Type': 'text/xml'});
			var response = xmpp.stanza('ul', {xmlns: 'http://www.w3.org/1999/xhtml'});

			children = storage.getChildren();
			if (typeof children == 'number')
				return false;

			for (var i in children)
				response.c('li').c('a', {href: i}).t(i).up().up();
		}

		res.end(response.toString());

		return true;
	},
}