# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0
#
# 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.
#
# 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.

# TopicGenerator
#
#   Creates topic name for a message from configured template and message content
# Implemented as factory patter to allow to variable strategies 
#

from abc import ABC, abstractmethod

class TopicGenerator(ABC):
    def __init__(self, topic_template) -> None:
        self.template = topic_template

    @abstractmethod
    def make_topicname(self, **kwargs):
        raise NotImplementedError("MessagePayload must be subclassed with an implementation of #prepare_message")

class SimpleFormattedTopic(TopicGenerator):
    def make_topicname(self, **kwargs):
        # TODO: strip or encode args to be topic-safe
        topic_name = self.template.format(**kwargs)
        return topic_name