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#
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from txdbus import client, error

from autobahn import wamp
from autobahn.twisted.util import sleep
from autobahn.twisted.wamp import ApplicationSession
from twisted.internet.defer import inlineCallbacks


class DbusNotifier(ApplicationSession):
    @inlineCallbacks
    def onJoin(self, details):
        conn = yield client.connect(reactor, "session")
        print("Dbus connection created")

        self._notifier = yield conn.getRemoteObject(
            "org.freedesktop.Notifications", "/org/freedesktop/Notifications"
        )
        print("Dbus notification object created")

        yield self.subscribe(self)
        print("Dbus notifier subscribed")

    @inlineCallbacks
    @wamp.subscribe("com.example.dbus.on_notify")
    def onNotify(self, title, body, duration=2):
        print(
            "Notification received: title = '{}', body = '{}', duration = {}".format(
                title, body, duration
            )
        )

        try:
            nid = yield self._notifier.callRemote(
                "Notify", "WAMP/Dbus Notifier", 0, "", str(title), str(body), [], {}, 1
            )

            print(
                "Desktop notification shown (NID = {}).. closing in {} seconds".format(
                    nid, duration
                )
            )

            yield sleep(duration)
            print("Closing notification")

            yield self._notifier.callRemote("CloseNotification", nid)
            print("Notification closed")

        except Exception as e:
            print("ERROR: {}".format(e))


if __name__ == "__main__":
    import argparse
    import sys

    # parse command line arguments
    parser = argparse.ArgumentParser()

    parser.add_argument(
        "--web",
        type=int,
        default=8080,
        help="Web port to use for embedded Web server. Use 0 to disable.",
    )

    parser.add_argument(
        "--router",
        type=str,
        default=None,
        help="If given, connect to this WAMP router. Else run an embedded router on 9000.",
    )

    args = parser.parse_args()

    from twisted.python import log

    log.startLogging(sys.stdout)

    # import Twisted reactor
    from twisted.internet import reactor

    print("Using Twisted reactor {0}".format(reactor.__class__))

    # create embedded web server for static files
    if args.web:
        from twisted.web.server import Site
        from twisted.web.static import File

        reactor.listenTCP(args.web, Site(File(".")))

    # run WAMP application component
    from autobahn.twisted.wamp import ApplicationRunner

    router = args.router or "ws://127.0.0.1:9000"

    runner = ApplicationRunner(router, "realm1", standalone=not args.router)

    # start the component and the Twisted reactor ..
    runner.run(DbusNotifier)
