app.js

"use strict";

function loadOptionalModule(module, listModules) {
	try {
		var loadedModule = require("./lib/" + module);
		if(!!listModules && !!loadedModule) {
			listModules.push(loadedModule);
		}
		return loadedModule;
	} catch(e) {
		console.log("An error occurs when loading module " + module + ".", e);
	}
}

var express = require("express");
var app = express();
var http = require("http").Server(app);
var path = require("path");
var io = require("socket.io")(http);

var triggers = [];
loadOptionalModule("keyboard-trigger", triggers);
loadOptionalModule("gpio-trigger", triggers);

// Handlers
app.all("*", function(req, res, next) {
//	console.log(req);
	next();
});
// API
app.get("/api/:action/*", function(req, res){
	io.emit(req.params.action, req.params[0]);
	res.send();
});
// Public pages
var wwwOptions = { root: __dirname + "/www/" };
app.get("/", function(req, res){
	res.sendFile("index.html", wwwOptions);
});
app.get("/static/:file", function(req, res) {
	res.sendFile(req.params.file, wwwOptions);
});
// Resources
app.use(express.static(path.join(__dirname, "data")));


http.listen(3000, function(){
	console.log("listening on *:3000");
});

io.on("connection", function(socket){
	console.log("webpage connected");

	triggers.forEach(function(trigger) {
		trigger.on("trigger", function(id) {
			console.log("trigger", id);
			socket.emit("play", id);
		});
	});

	socket.on("ready", function(msg){
		console.log("webpage ready");
	});

	socket.on("disconnect", function(){
		console.log("webpage disconnected");
	});
});