#!/usr/bin/env ruby

require 'socket'
require 'io/console'

HOST = 'localhost'
PORT = 6789
VERSION = 0.01

socket = TCPSocket.new(HOST, PORT)

puts "PORT: #{PORT}"
puts "HOST: #{HOST}"

#reader = Thread.new do
Thread.new do
  loop do
    msg = socket.gets
    exit 0 unless msg
    ver, msg = msg.split('|',2)
    next unless ver.to_f <= VERSION
    next unless msg != nil
    # In message version 0.01 and lower,
    # all messages are in an assumed format...
    row,col,chars = msg.split('|',3)
    print "\x1b[#{row};#{col}H#{chars}\x1b[A"
  end
end

while (char = STDIN.noecho(&:getch))
  exit unless char != "\x03" # ^C
  exit unless char != "\x04" # ^D
  next unless char.ord >= 0x20 # Non printing
  next unless char.ord != 0x7F # DEL (Non print)
  socket.puts "#{VERSION}|#{char}"
end