###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies 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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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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from autobahn.twisted.websocket import WebSocketClientProtocol, \
    WebSocketClientFactory

import json
import random


class SlowSquareClientProtocol(WebSocketClientProtocol):

    def onOpen(self):
        x = 10. * random.random()
        self.sendMessage(json.dumps(x).encode('utf8'))
        print("Request to square {} sent.".format(x))

    def onMessage(self, payload, isBinary):
        if not isBinary:
            res = json.loads(payload.decode('utf8'))
            print("Result received: {}".format(res))
            self.sendClose()

    def onClose(self, wasClean, code, reason):
        if reason:
            print(reason)
        reactor.stop()


if __name__ == '__main__':

    import sys

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

    log.startLogging(sys.stdout)

    factory = WebSocketClientFactory("ws://127.0.0.1:9000")
    factory.protocol = SlowSquareClientProtocol

    reactor.connectTCP("127.0.0.1", 9000, factory)
    reactor.run()
