from pywebsocket3 import common
from pywebsocket3 import stream
from pywebsocket3 import util


def web_socket_do_extra_handshake(request):
    pass


def web_socket_transfer_data(request):
    messages_to_send = [b'Hello, world!', b'', all_distinct_bytes()]
    for message in messages_to_send:
        # FIXME: Should use better API to send binary messages when pywebsocket
        # supports it.
        header = stream.create_header(common.OPCODE_BINARY,
                                      len(message), 1, 0, 0, 0, 0)
        request.connection.write(header + message)


def all_distinct_bytes():
    return b''.join([util.pack_byte(i) for i in range(256)])