# Copyright (c) 2014 Amazon.com, Inc. or its affiliates.  All Rights Reserved
#
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# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
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# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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from boto.regioninfo import get_regions
from boto.regioninfo import connect


def regions():
    """
    Get all available regions for the RDS service.

    :rtype: list
    :return: A list of :class:`boto.regioninfo.RegionInfo`
    """
    from boto.rds2.layer1 import RDSConnection
    return get_regions('rds', connection_cls=RDSConnection)


def connect_to_region(region_name, **kw_params):
    """
    Given a valid region name, return a
    :class:`boto.rds2.layer1.RDSConnection`.
    Any additional parameters after the region_name are passed on to
    the connect method of the region object.

    :type: str
    :param region_name: The name of the region to connect to.

    :rtype: :class:`boto.rds2.layer1.RDSConnection` or ``None``
    :return: A connection to the given region, or None if an invalid region
             name is given
    """
    from boto.rds2.layer1 import RDSConnection
    return connect('rds', region_name, connection_cls=RDSConnection,
                   **kw_params)