"use strict";
var layouts = require("../layouts")
, loggly = require("loggly")
, os = require('os');


/**
 * Loggly Appender. Sends logging events to Loggly using node-loggly 
 *
 * @param config object with loggly configuration data
 * {
 *   token: 'your-really-long-input-token',
 *   subdomain: 'your-subdomain',
 *   tags: ['loggly-tag1', 'loggly-tag2', .., 'loggly-tagn'] 
 * }
 * @param layout a function that takes a logevent and returns a string (defaults to basicLayout).
 */
function logglyAppender(config, layout) {
	layout = layout || layouts.basicLayout;

	var client = loggly.createClient(config);

	
	return function(loggingEvent) {
		console.log('attempts', loggingEvent, layout(loggingEvent), config.tags);
		client.log(layout(loggingEvent), config.tags, function(err, result){
			if (err) {
				console.log('Loggly: '+ err.message);
			} else {
				console.log('Loggly: '+ JSON.stringify(result));
			}
		});
	};

}

function configure(config) {
	var layout;
	if (config.layout) {
		layout = layouts.layout(config.layout.type, config.layout);
	}
	return logglyAppender(config, layout);
}

exports.name      = "loggly";
exports.appender  = logglyAppender;
exports.configure = configure;