#  Copyright (c) 2010 Tim Medina
#
#  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, distribute, sublicense, and/or sell
#  copies of the Software, and to permit persons to whom the
#  Software is furnished to do so, subject to the following
#  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 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
#  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
#  HOLDERS 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.
#
#  The original code link is https://github.com/iamteem/redisco/tree/master/redisco/__init__.py


import redis


class Client(object):
    def __init__(self, **kwargs):
        self.connection_settings = kwargs or {'host': 'localhost', 'port': 6379, 'db': 0}

    def redis(self):
        return redis.Redis(**self.connection_settings)

    def update(self, d):
        self.connection_settings.update(d)


def connection_setup(**kwargs):
    global connection, client
    if client:
        client.update(kwargs)
    else:
        client = Client(**kwargs)
    connection = client.redis()


def get_client():
    global connection
    return connection


client = Client()
connection = client.redis()

__all__ = ['connection_setup', 'get_client']