# Wraps the TCP socket and prints data sent and received. Used for debugging
# the wire protocol. You can use this by passing a :socket_class to Browser.
class SocketDebugger
  def self.open(host, port)
    real_socket = TCPSocket.open(host, port)
    new(real_socket)
  end

  def initialize(socket)
    @socket = socket
  end

  def read(length)
    received @socket.read(length)
  end

  def puts(line)
    sent line
    @socket.puts(line)
  end

  def print(content)
    sent content
    @socket.print(content)
  end

  def gets
    received @socket.gets
  end

  private

  def sent(content)
    Kernel.puts " >> " + content.to_s
  end

  def received(content)
    Kernel.puts " << " + content.to_s
    content
  end
end