var http = require('http'),
    url = require('url'),
    fs = require('fs'),
    server;
 
server = http.createServer(function(req, res){
    var path = url.parse(req.url).pathname;
    switch (path){
    case '/':
        res.writeHead(200, {'Content-Type': 'text/html; charset=UTF-8'});
        res.write('<h1>Hello! Try the <a href="/index.html">Socket.io Test</a></h1>');
        res.end();
        break;
    case '/index.html':
        fs.readFile(__dirname + path, function(err, data){
        if (err) return send404(res);
		console.log("server path=" + path);
        res.writeHead(200, {'Content-Type': path == 'json.js' ? 'text/javascript' : 'text/html; charset=UTF-8'})
        //res.write();
        res.end(data, 'utf8');//可以直接end()输出，也可以先write()在end()，无论如何end()是必须的
        });
        break;
	case '/main.html':
		fs.readFile(__dirname + path, function(err, data){
		if (err) return send404(res);
		console.log("server path=" + path);
		res.writeHead(200, {'Content-Type': path == 'json.js' ? 'text/javascript' : 'text/html; charset=UTF-8'})
		res.write(data, 'utf8');
		res.end();
		});
		break;
    default: send404(res);
    }
}),
 
send404 = function(res){
    res.writeHead(404);
    res.write('404');
    res.end();
};
 
server.listen(9090);

var io = require('socket.io').listen(server);
io.sockets.on('connection', function(socket){
	socket.on('testEvent',function(msg, fn){
        console.log("Connection " + socket.id + " accepted.");
		socket.broadcast.emit('public message', msg);
		fn(true);
	});
});