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/**
 * Customer controller
 */
var xml2js = require('xml2js'),
	fs     = require('fs');

exports.init = function(app) {
	// Setup routes for this controller
	app.get('/customer/:id', render);
	app.get('/customer/:id/:component', render);
	app.get('/customer/:id/:component/:index', render);
};

function render(req, res) {
	parseConfig(req.params.id, function(_data) {

		var componentIndex = (req.params.index >= 0 && _data.tabs.item[req.params.index]) ? req.params.index : 0;
		var	component      = require('../components/' + _data.tabs.item[componentIndex].type);

		component.render(_data.tabs.item[componentIndex], function(e) {
			res.render('customer', {
				type: 'customer',
				id: _data.appid,
				data: _data,
				index: componentIndex,
				component: e,
				params: req.params
			});
		});
	}); // Nested callbacks are so ugly.  Need to refactor
};

function parseConfig(_id, _callback) {
	// Parse and consume the configuration for the app
	var parser = new xml2js.Parser();
	
	// Build the data to be passed to the views
	parser.addListener('end', function(_result) {
		_callback(_result);
	});
	
	// Read the file and parse it / converting it to JSON
	// TODO This will probably be done via a request I assume, in which case we don't need to read a file but rather
	// make a remote request to retrieve the xml file.
	fs.readFile('./auti/customers/' + _id + '/application.xml', function (err, data) {
		if (err) throw err;
		parser.parseString(data);		
	});	
};