###############################################################################
#
# The MIT License (MIT)
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# Copyright (c) Tavendo GmbH
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# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
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from autobahn.asyncio.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)
        loop.stop()


if __name__ == '__main__':

    try:
        import asyncio
    except ImportError:
        # Trollius >= 0.3 was renamed
        import trollius as asyncio

    factory = WebSocketClientFactory(u"ws://127.0.0.1:9000", debug=False)
    factory.protocol = SlowSquareClientProtocol

    loop = asyncio.get_event_loop()
    coro = loop.create_connection(factory, '127.0.0.1', 9000)
    loop.run_until_complete(coro)
    loop.run_forever()
    loop.close()