# Copyright (C) 2019 Advanced Media Workflow Association
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


class Action():

    def __init__(self, inputID, outputID, inputChannel=0, outputChannel=0):
        self.inputID = inputID
        self.outputID = outputID
        self.inputChannel = inputChannel
        self.outputChannel = outputChannel

    def __str__(self):
        output = "{}[{}]".format(self.outputID, self.outputChannel)
        input = "{}[{}]".format(self.inputID, self.inputChannel) if self.inputID is not None else None
        return output + " = " + input

    def __repr__(self):
        return str(self)

    def channelJSON(self):
        return {
            self.outputChannel: {
                "input": self.inputID,
                "channel_index": self.inputChannel
            }
        }
