# This is part of Kaylee
# -- this code is licensed GPLv3
# Copyright 2015-2016 Clayton G. Hobbs
# Portions Copyright 2013 Jezra

from abc import ABCMeta, abstractmethod


class PluginBase(metaclass=ABCMeta):
    """Base class for Kaylee plugins

    Each Kaylee plugin module must define a subclass of this class, named
    ``Plugin``.  These obviously must provide concrete implementations of all
    abstract methods defined here.
    """

    def __init__(self, config):
        """Initialize the plugin

        All strings to be included in the corpus should be elements of
        ``corpus_strings`` by the end of __init__'s execution.  Note however
        that the words required for number support are automatically included,
        so they need not be listed explicitly on a per-plugin basis.
        """
        self.config = config
        self.corpus_strings = set()

    @abstractmethod
    def recognizer_finished(self, recognizer, text):
        """Process a recognized voice command

        This method must return True if the command was handled by the plugin,
        and False otherwise.
        """
        pass