from enum import Enum
from yapsy.IPlugin import IPlugin


class PluginTypes(Enum):
    """Plugin Types possibles to instantiate in this program."""
    ALL = "All"
    INTERFACE = "Interface"
    PLATFORM = "Platform"
    CONSUMER = "Consumer"


class IPrismediaBasePlugin(IPlugin):
    """
    Base for prismedia’s plugin.
    """

    def prepare_options(self, video, options):
        """
        Return a falsy value to exit the program.
        - `video`: video object to be uploaded
        - `options`: a dictionary of options to be used by Prismedia and other plugins
        """
        raise NotImplementedError("`prepare_options` must be reimplemented by %s" % self)


###
# Interface
###
class IInterfacePlugin(IPrismediaBasePlugin):
    """
    Interface for the Interface plugin category.
    """

    # TODO: Add callback for communicating upload’s progress to the user


###
# Platform
###
class IPlatformPlugin(IPrismediaBasePlugin):
    """
    Interface for the Platform plugin category.
    """

    def heartbeat(self):
        """
        If needed for your platform, use a bit of the api so the platform is aware the keys are still in use.
        """
        raise NotImplementedError("`heartbeat` must be reimplemented by %s" % self)

    def upload(self, video, options):
        """
        The upload function
        """
        raise NotImplementedError("`upload` must be reimplemented by %s" % self)


###
# Consumer
###
class IConsumerPlugin(IPrismediaBasePlugin):
    """
    Interface for the Consumer plugin category.
    """

    def finished(self, video, options):
        """
        What to do once the uploads are done.
        - `video` is an object containing the video details. The `platforms` key contain a list of the platforms the video has been uploaded to and the status
        """
        raise NotImplementedError("`finished` must be reimplemented by %s" % self)