#!/bin/bash /usr/scripts/python.sh
# -*- coding: utf-8 -*-

"""
This module provides a basic service class to other services. It should *NOT*
be referenced in configuration of trigger.
"""

class BasicService(object):
    """Basic service handler. Other services should inherit fron this one.

    """

    changes_trigger = {}

    @classmethod
    def get_changes(cls, body, diff):
        """Looks for changes and creates messages to send back

        """
        # list of all messages to send.
        msg_list = []

        # lists all functions to call
        func_list = set()
        for (attrib, functions) in cls.changes_trigger.iteritems():
            if attrib in diff:
                func_list.update(functions)
        for function in func_list:
            msg_list.append(function(body, diff))
        return msg_list

    @classmethod
    def regen(cls, body):
        """This method is referenced to avoid uncaught exceptions

        """
        pass