var http = require('http');
var url = require('url');
var fs = require('fs');
var express = require('express'); // Para HTTP
var cors = require('cors'); // Para HTTP com EXPRESS
var position = 1;
var file_path = 'dados.json';

var event = express();
event.use(cors());

var bodyParser = require('body-parser'); // Ler body do post
event.use(bodyParser.json());
event.use(bodyParser.urlencoded({
	extended : true
}));

check_file();

function check_file()
{
	var file = fs.readFile('dados.json', function(err, data)
	{
	    try
	    {
	    		JSON.parse(data.toString());
	    }
	    catch (e)
	    {
	    		fs.writeFile('dados.json', "[]", function(err){});
	    }
	});
}


event.post('/register', function(req, res) {

	var data = "";

	console.log("createServer");
	var file = fs.readFile('dados.json', function(err, data) {

		if (!err) {

			var dados = JSON.parse(data.toString());
			var user = req.body.nick;
			var pass = req.body.pass;
			var flag = 0;
			var object = JSON.parse(data.toString('utf8'));

			for(var i=0;i<object.length;i++){
				var object_teste = JSON.stringify(object);
				console.log("for2 user " + object_teste);
				//console.log("for2 pass " + object_teste.body.pass[i]);
				if(object[i].nick === user){
					console.log("This user already exits");

					if(object[i].pass === pass){
						flag=2; //200
						console.log("falg " + flag);

						break;
					}
					else {
						flag=3; //401
						console.log("falg " + flag);

						break;
					}
					break;
				}
				else{
					flag=1;

				}
			}
			console.log("falg final " + flag);

			if(flag==1){


				//console.log(" data " + object[0]);
				//console.log(" body " + JSON.stringify(req.body));

				object.push(req.body);
				//console.log("aqui " + object);

				fs.writeFile('dados.json', JSON.stringify(object), function(err) {
					if (err)
						return console.log(err);

				});
			}
			else if(flag==2){
				res.writeHead(200, {'Content-Type' : 'text/plain'});
				console.log("flag2" + flag);

			}
			else{
				res.writeHead(401, {'Content-Type' : 'text/plain'});
				console.log("flag3" + flag);

			}
			console.log("HERE!");

			res.json( {} );
			console.log("HERE!");

			res.end();

		}
		else {
			res.writeHead(404, {'Content-Type' : 'text/html'});
			console.log("ERRO CRLH" + err);
			console.log("HERE22!");

			//res.json( {} );
			console.log("HERE22!");

			res.end();
		}

	});
});

var server = event.listen(8080);