main.js

#!/usr/bin/env node

var WebSocket = require('ws'),
	Vorpal = require('vorpal'),
	repl = require('vorpal-repl'),
	request = require('request'),
	version = require('./package.json').version;

var vorpal = Vorpal(),
	ws;

var connect = function (cb) {
		ws = new WebSocket('ws://barfy-server.herokuapp.com');

		ws.on('open', function () {
			(cb || function () {})();
		});
		ws.on('error', function (message) {
			vorpal.log('ERROR: %s', message);
		});
	},
	send = function (action, value) {
		var message = {action, value};

		try {
			ws.send(JSON.stringify(message));
		} catch (e) {
			connect(function () {
				send(action, value);
			});
		}
	};

var startCli = function (contents) {
		vorpal.log('\n                            .-""""-.\n                           /\' .  \'. \\\n                          (`-..:...-\')\n                           ;-......-;\n                            \'------\'    ' + version + '\n     _______     ________    _______     ________    __    __\n    / ____ /\\   / ____  /\\  / ____ /\\   / ______/\\  /_/\\ _/_/\\\n   / /\\__/_/\\  / /\\__/ / / / /\\__/ /\\  / /\\_____\\/  /_/\\/_/\\\\/\n  / ____ /\\\\/ / ____  / / / ____ /\\\\/ / _____/\\     / /_/\\\\/\n / /\\__/_/\\  / /\\__/ / / / /\\__/ /\\  / /\\____\\/     / /\\\\/\n/______/\\\\/ /_/ / /_/ / /_/ / /_/ / /_/ /          /_/ /\n\\______\\/   \\_\\/  \\_\\/  \\_\\/  \\_\\/  \\_\\/           \\_\\/\n');
		vorpal
			.command('audio <value...>', 'Reproduce crap.')
			.autocomplete(contents.audio)
			.alias('a')
			.action(function (args, callback) {
				args.value.forEach(function (value) {
					send('audio', value);
				});

				callback();
			});

		vorpal
			.command('announce <text...>', 'Hace un anuncio fancy.')
			.alias('ann')
			.action(function (args, callback) {
				send('announce', args.text.join(' '));

				callback();
			});

		vorpal
			.command('youtube <id...>', 'Reproduce un video de youtube.')
			.alias('yt')
			.action(function (args, callback) {
				args.id.forEach(function (id) {
					send('youtube', id);
				});

				callback();
			});

		vorpal
			.command('stop')
			.alias('s')
			.action(function (args, callback) {
				send('stop');

				callback();
			});

		vorpal
			.delimiter('>')
			.use(repl)
			.show();
	};

var bootstrap = function (cb) {
		vorpal.log('Loading contents...');
		return request({url: 'http://barfy.surge.sh/contents.json', json: true}, (cb || function () {}));
	},
	checkVersion = function () {
		request({url: 'https://raw.githubusercontent.com/alvarocastro/barfy-cli/master/package.json', json: true}, function (error, response, body) {
			if (!error && response.statusCode === 200) {
				var newVersion = body.version;

				if (newVersion != version) {
					vorpal.log('! New version available: ' + newVersion);
					vorpal.log('! Run npm install -g barfy-cli');
				} else {
					setTimeout(checkVersion, 1000 * 5 * 60);
				}
			}
		});
	};


bootstrap(function (error, response, contents) {
	startCli(contents);
	checkVersion();
});