text: # MIT License
  #
  # Copyright (c) 2020 Jonathan Zernik
  #
  # 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
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  from squeak.messages import msg_offer
  from squeak.messages import msg_secretkey
  from squeak.messages import MsgSerializable
  
  from squeaknode.core.offer import Offer
  
  
  class SecretKeyReply:
  
      def get_msg(self) -> MsgSerializable:
          """Return the message to reply to the other peer.
          """
  
  
  class FreeSecretKeyReply(SecretKeyReply):
  
      def __init__(self, squeak_hash: bytes, secret_key: bytes):
          self.squeak_hash = squeak_hash
          self.secret_key = secret_key
  
      def get_msg(self) -> MsgSerializable:
          return msg_secretkey(
              hashSqk=self.squeak_hash,
              secretKey=self.secret_key,
          )
  
  
  class OfferReply(SecretKeyReply):
  
      def __init__(self, squeak_hash: bytes, offer: Offer):
          self.squeak_hash = squeak_hash
          self.offer = offer
  
      def get_msg(self) -> MsgSerializable:
          return msg_offer(
              hashSqk=self.squeak_hash,
              nonce=self.offer.nonce,
              strPaymentInfo=self.offer.payment_request.encode(
                  'utf-8'),
              host=self.offer.host.encode('utf-8'),
              port=self.offer.port,
          )
  