###############################################################################
#
# 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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# 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
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# THE SOFTWARE.
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###############################################################################

import sys

from twisted.internet import reactor, ssl
from twisted.python import log
from twisted.web.server import Site
from twisted.web.static import File

from autobahn.twisted.websocket import WebSocketServerFactory, \
    WebSocketServerProtocol, \
    listenWS

from autobahn.twisted.resource import WebSocketResource


class PingServerProtocol(WebSocketServerProtocol):

    def doPing(self):
        if self.run:
            self.sendPing()
            self.factory.pingsSent[self.peer] += 1
            print("Ping sent to {} - {}".format(self.peer, self.factory.pingsSent[self.peer]))
            reactor.callLater(1, self.doPing)

    def onPong(self, payload):
        self.factory.pongsReceived[self.peer] += 1
        print("Pong received from {} - {}".format(self.peer, self.factory.pongsReceived[self.peer]))

    def onOpen(self):
        self.factory.pingsSent[self.peer] = 0
        self.factory.pongsReceived[self.peer] = 0
        self.run = True
        self.doPing()

    def onClose(self, wasClean, code, reason):
        self.run = False


class PingServerFactory(WebSocketServerFactory):

    def __init__(self, uri):
        WebSocketServerFactory.__init__(self, uri)
        self.pingsSent = {}
        self.pongsReceived = {}


if __name__ == '__main__':

    log.startLogging(sys.stdout)

    contextFactory = ssl.DefaultOpenSSLContextFactory('keys/server.key',
                                                      'keys/server.crt')

    factory = PingServerFactory(u"wss://127.0.0.1:9000")

    factory.protocol = PingServerProtocol
    listenWS(factory, contextFactory)

    resource = WebSocketResource(factory)

    root = File(".")
    # note that Twisted uses bytes for URLs, which mostly affects Python3
    root.putChild(b"ws", resource)
    site = Site(root)

    reactor.listenSSL(8080, site, contextFactory)
    # reactor.listenTCP(8080, site)

    reactor.run()
