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# Copyright ETSI Contributors and Others.
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# 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
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#    http://www.apache.org/licenses/LICENSE-2.0
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# distributed under the License is distributed on an "AS IS" BASIS,
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from abc import abstractmethod
from dataclasses import dataclass

from osm_common.temporal.dataclasses_common import CharmInfo, VduComputeConstraints
from osm_common.temporal.workflows.base import BaseWorkflow


class VduInstantiateWorkflow(BaseWorkflow):
    """Instantiate a VDU"""

    @dataclass
    class Input:
        """
        Input dataclass for workflow that instantiates a VDU.

        vim_uuid: str

        model_name: str

        charm_info : CharmInfo

        constraints: VduComputeConstraints

        cloud: VIM cloud type

        config: Config details of application
        """

        vim_uuid: str
        model_name: str
        charm_info: CharmInfo
        constraints: VduComputeConstraints
        cloud: str
        config: dict

    @abstractmethod
    async def run(self, workflow_input: Input) -> None:
        pass


class VduTerminateWorkflow(BaseWorkflow):
    """Terminate a VDU"""

    @dataclass
    class Input:
        """
        Input dataclass for workflow that terminates a VDU.

        vim_uuid: str
            The UUID of the VIM as stored in the OSM vim_accounts
            collection in Mongo.

        model_name: str
            Name of the model in Juju where the charm to be removed.

        application_name: str
            Name of the application whose removal is going to be
            awaited.
        """

        vim_uuid: str
        model_name: str
        application_name: str

    @abstractmethod
    async def run(self, workflow_input: Input) -> None:
        pass
