'use strict';
var common = require('../common');
var assert = require('assert');
var net = require('net');
var http = require('http');
var url = require('url');
var qs = require('querystring');

var request_number = 0;
var requests_sent = 0;
var server_response = '';
var client_got_eof = false;

var server = http.createServer(function(req, res) {
  res.id = request_number;
  req.id = request_number++;

  if (req.id == 0) {
    assert.equal('GET', req.method);
    assert.equal('/hello', url.parse(req.url).pathname);
    assert.equal('world', qs.parse(url.parse(req.url).query).hello);
    assert.equal('b==ar', qs.parse(url.parse(req.url).query).foo);
  }

  if (req.id == 1) {
    common.error('req 1');
    assert.equal('POST', req.method);
    assert.equal('/quit', url.parse(req.url).pathname);
  }

  if (req.id == 2) {
    common.error('req 2');
    assert.equal('foo', req.headers['x-x']);
  }

  if (req.id == 3) {
    common.error('req 3');
    assert.equal('bar', req.headers['x-x']);
    this.close();
    common.error('server closed');
  }

  setTimeout(function() {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.write(url.parse(req.url).pathname);
    res.end();
  }, 1);

});
server.listen(common.PORT);

server.httpAllowHalfOpen = true;

server.on('listening', function() {
  var c = net.createConnection(common.PORT);

  c.setEncoding('utf8');

  c.on('connect', function() {
    c.write('GET /hello?hello=world&foo=b==ar HTTP/1.1\r\n\r\n');
    requests_sent += 1;
  });

  c.on('data', function(chunk) {
    server_response += chunk;

    if (requests_sent == 1) {
      c.write('POST /quit HTTP/1.1\r\n\r\n');
      requests_sent += 1;
    }

    if (requests_sent == 2) {
      c.write('GET / HTTP/1.1\r\nX-X: foo\r\n\r\n' +
              'GET / HTTP/1.1\r\nX-X: bar\r\n\r\n');
      // Note: we are making the connection half-closed here
      // before we've gotten the response from the server. This
      // is a pretty bad thing to do and not really supported
      // by many http servers. Node supports it optionally if
      // you set server.httpAllowHalfOpen=true, which we've done
      // above.
      c.end();
      assert.equal(c.readyState, 'readOnly');
      requests_sent += 2;
    }

  });

  c.on('end', function() {
    client_got_eof = true;
  });

  c.on('close', function() {
    assert.equal(c.readyState, 'closed');
  });
});

process.on('exit', function() {
  assert.equal(4, request_number);
  assert.equal(4, requests_sent);

  var hello = new RegExp('/hello');
  assert.equal(true, hello.exec(server_response) != null);

  var quit = new RegExp('/quit');
  assert.equal(true, quit.exec(server_response) != null);

  assert.equal(true, client_got_eof);
});