###############################################################################
#
# 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:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# 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
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# THE SOFTWARE.
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###############################################################################

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

from os import environ
from autobahn.asyncio.wamp import ApplicationSession, ApplicationRunner


class Component(ApplicationSession):
    """
    An application component calling the different backend procedures.
    """

    @asyncio.coroutine
    def onJoin(self, details):

        procs = [u'com.mathservice.add2',
                 u'com.mathservice.mul2',
                 u'com.mathservice.div2']

        try:
            for proc in procs:
                res = yield from self.call(proc, 2, 3)
                print("{}: {}".format(proc, res))
        except Exception as e:
            print("Something went wrong: {}".format(e))

        self.leave()

    def onDisconnect(self):
        asyncio.get_event_loop().stop()


if __name__ == '__main__':
    runner = ApplicationRunner(
        environ.get("AUTOBAHN_DEMO_ROUTER", "ws://127.0.0.1:8080/ws"),
        u"crossbardemo",
        debug_wamp=False,  # optional; log many WAMP details
        debug=False,  # optional; log even more details
    )
    runner.run(Component)
