# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (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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# Software distributed under the License is distributed on an "AS IS" basis,
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# The Original Code is configman
#
# The Initial Developer of the Original Code is
# Mozilla Foundation
# Portions created by the Initial Developer are Copyright (C) 2011
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# Contributor(s):
#    K Lars Lohn, lars@mozilla.com
#    Peter Bengtsson, peterbe@mozilla.com
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import dotdict
from option import Option, Aggregation


class Namespace(dotdict.DotDict):

    def __init__(self, doc=''):
        super(Namespace, self).__init__()
        object.__setattr__(self, '_doc', doc)  # force into attributes

    #--------------------------------------------------------------------------
    def __setattr__(self, name, value):
        if isinstance(value, (Option, Namespace, Aggregation)):
            # then they know what they're doing already
            o = value
        else:
            o = Option(name=name, default=value, value=value)
        super(Namespace, self).__setattr__(name, o)

    #--------------------------------------------------------------------------
    def add_option(self, name, *args, **kwargs):
        an_option = Option(name, *args, **kwargs)
        setattr(self, name, an_option)

    #--------------------------------------------------------------------------
    def add_aggregation(self, name, function):
        an_aggregation = Aggregation(name, function)
        setattr(self, name, an_aggregation)

    #--------------------------------------------------------------------------
    def namespace(self, name, doc=''):
        setattr(self, name, Namespace(doc=doc))

    #--------------------------------------------------------------------------
    def set_value(self, name, value, strict=True):

        name_parts = name.split('.', 1)
        prefix = name_parts[0]
        try:
            candidate = getattr(self, prefix)
        except KeyError:
            if strict:
                raise
            candidate = Option(name)
            setattr(self, prefix, candidate)
        candidate_type = type(candidate)
        if candidate_type == Namespace:
            candidate.set_value(name_parts[1], value, strict)
        else:
            candidate.set_value(value)
