###############################################################################
#
# 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:
#
# 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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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################

from os import environ
from twisted.internet.defer import inlineCallbacks, returnValue

from autobahn.wamp.types import RegisterOptions
from autobahn.twisted.util import sleep
from autobahn.twisted.wamp import ApplicationSession, ApplicationRunner


class Component(ApplicationSession):
    """
    Application component that produces progressive results.
    """

    @inlineCallbacks
    def onJoin(self, details):
        print("session attached")

        @inlineCallbacks
        def longop(n, details=None):
            if details.progress:
                # caller can (and requested to) consume progressive results
                for i in range(n):
                    details.progress(i)
                    yield sleep(1)
            else:
                # process like a normal call (not producing progressive results)
                yield sleep(1 * n)
            returnValue(n)

        yield self.register(longop, u'com.myapp.longop', RegisterOptions(details_arg='details'))

        print("procedures registered")


if __name__ == '__main__':
    runner = ApplicationRunner(
        environ.get("AUTOBAHN_DEMO_ROUTER", u"ws://127.0.0.1:8080/ws"),
        u"crossbardemo",
    )
    runner.run(Component)