###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Tavendo GmbH
#
# 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:
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# 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
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# THE SOFTWARE.
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###############################################################################

import autobahn

from autobahn.twisted.websocket import WebSocketServerProtocol, \
    WebSocketServerFactory

from autobahn.websocket.protocol import WebSocketProtocol
from autobahn.websocket.compress import *


USE_STREAMING_TESTEE = False


if USE_STREAMING_TESTEE:

    class StreamingTesteeServerProtocol(WebSocketServerProtocol):

        """
        A streaming WebSocket echo server.
        """

        def onMessageBegin(self, isBinary):
            WebSocketServerProtocol.onMessageBegin(self, isBinary)
            self.beginMessage(isBinary)

        def onMessageFrameBegin(self, length):
            WebSocketServerProtocol.onMessageFrameBegin(self, length)
            self.beginMessageFrame(length)

        def onMessageFrameData(self, payload):
            self.sendMessageFrameData(payload)

        def onMessageFrameEnd(self):
            pass

        def onMessageEnd(self):
            self.endMessage()

else:

    class TesteeServerProtocol(WebSocketServerProtocol):

        """
        A message-based WebSocket echo server.
        """

        def onMessage(self, payload, isBinary):
            self.sendMessage(payload, isBinary)


class TesteeServerFactory(WebSocketServerFactory):

    if USE_STREAMING_TESTEE:
        protocol = StreamingTesteeServerProtocol
    else:
        protocol = TesteeServerProtocol

    def __init__(self, url, debug=False, ident=None):
        if ident is not None:
            server = ident
        else:
            server = "AutobahnPython-Twisted/%s" % autobahn.version
        WebSocketServerFactory.__init__(self, url, debug=debug, debugCodePaths=debug, server=server)

        self.setProtocolOptions(failByDrop=False)  # spec conformance

        if USE_STREAMING_TESTEE:
            self.setProtocolOptions(failByDrop=True)  # needed for streaming mode
        else:
            # enable permessage-deflate (which is not working with streaming currently)
            #
            def accept(offers):
                for offer in offers:
                    if isinstance(offer, PerMessageDeflateOffer):
                        return PerMessageDeflateOfferAccept(offer)

            self.setProtocolOptions(perMessageCompressionAccept=accept)

        # self.setProtocolOptions(utf8validateIncoming = False)


if __name__ == '__main__':

    import sys

    from twisted.python import log
    from twisted.internet import reactor

    log.startLogging(sys.stdout)

    factory = TesteeServerFactory("ws://127.0.0.1:9001", debug=False)

    reactor.listenTCP(9001, factory)
    reactor.run()
