const net = require('net');

const client = new net.Socket();
let connected = false;

client.on('error', (err) => console.error('client#error', err.message));

client.on('close', () =>
{
  console.log('client#close');
  
  connected = false;
  
  setTimeout(connect, 333);
});

client.on('connect', () =>
{
  console.log('client#connect');
  
  connected = true;
});

//client.on('data', (data) => console.log('client#data', data));
///*
client.on('readable', () =>
{
  const data = client.read();
  
  if (data)
  {
    console.log('client#readable', data);
  }
});
//*/

connect();

setInterval(() => 
{
  if (connected)
  {
    client.write(Buffer.from([0, 1, 2]));
  }
}, 333);

function connect()
{
  console.log('connecting...');
  
  client.connect(502, '127.0.0.1');
}

const net = require('net');

const server = net.createServer();

server.on('connection', (conn) =>
{
  console.log('server#connection');
  
  conn.on('error', (err) => console.error('conn#error', err.message));
  conn.on('close', (err) => console.log('conn#close'));
  conn.on('readable', () =>
  {
    const data = conn.read();
    
    if (data)
    {
      console.log('conn#readable', data);
      
      conn.write(data);
    }
  });
});

server.on('error', (err) => console.error(err.message));

server.on('close', () => console.log('server#close'));

server.on('listening', () => console.log('server#listening'));

server.listen(502);

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
require('../common');
const assert = require('assert');

const net = require('net');

const N = 50;
let client_recv_count = 0;
let client_end_count = 0;
let client_readable_count = 0;
let disconnect_count = 0;

const server = net.createServer(function(socket) {
  console.error('SERVER: got socket connection');
  
  console.error('SERVER connect, writing');
  socket.write('hello\r\n');

  socket.on('end', () => {
    console.error('SERVER socket end, calling end()');

    socket.end();
  });

  socket.on('close', (had_error) => {
    console.log(`SERVER had_error: ${JSON.stringify(had_error)}`);
    assert.strictEqual(had_error, false);
  });
});

server.listen(0, function() {
  console.log('SERVER listening');
  const client = net.createConnection(this.address().port);

  client.setEncoding('UTF8');

  client.on('connect', () => {
    console.error('CLIENT connected');
  });

  client.on("readable", () => {
    console.log('CLIENT readable');
    client_readable_count++;

    client_recv_count += 1;
    console.log(`client_recv_count ${client_recv_count}`);
    console.error('CLIENT: calling end');
    client.end(); 
  });

  client.on('end', () => {
    console.error('CLIENT end');
    client_end_count++;
  });

  client.on('close', (had_error) => {
    console.log('CLIENT disconnect');
    assert.strictEqual(had_error, false);
    if (disconnect_count++ < N)
      client.connect(server.address().port); // reconnect
    else
      server.close();
  });
});

process.on('exit', () => {
  assert.strictEqual(disconnect_count, N + 1);
  assert.strictEqual(client_recv_count, N + 1);
  assert.strictEqual(client_end_count, N + 1);
  assert.strictEqual(client_readable_count, N + 1);
});