# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/
# Copyright 2012-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#

from six.moves import configparser
import os
import botocore.exceptions


def get_config(session):
    """
    If the ``config_file`` session variable exists, parse that
    file and return all of the data found within the file as a
    dictionary of dictionaries, one for each profile section found
    in the configuration file.

    :returns: A dict with keys for each profile found in the config
        file and the value of each key being a dict containing name
        value pairs found in that profile.

    :raises: ConfigNotFound, ConfigParseError
    """
    config = {}
    path = None
    path = session.get_variable('config_file')
    if path is not None:
        path = os.path.expandvars(path)
        path = os.path.expanduser(path)
        if not os.path.isfile(path):
            raise botocore.exceptions.ConfigNotFound(path=path)
        cp = configparser.RawConfigParser()
        try:
            cp.read(path)
        except configparser.Error:
            raise botocore.exceptions.ConfigParseError(path=path)
        else:
            config['_path'] = path
            for section in cp.sections():
                config[section] = {}
                for option in cp.options(section):
                    config[section][option] = cp.get(section, option)
    return config