#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
# 
#    Licensed under the Apache License, Version 2.0 (the "License");
#    you may not use this file except in compliance with the License.
#    You may obtain a copy of the License at
# 
#        http://www.apache.org/licenses/LICENSE-2.0
# 
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS,
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#    See the License for the specific language governing permissions and
#    limitations under the License.
"""
  WSGI daemon for the main API endpoint.  
"""

import logging
from tornado import ioloop
from wsgiref import simple_server

from nova import flags
from nova import rpc
from nova import server
from nova import utils
from nova.auth import users
from nova.endpoint import rackspace

FLAGS = flags.FLAGS
flags.DEFINE_integer('cc_port', 8773, 'cloud controller port')

def main(_argv):
    user_manager = users.UserManager()
    api_instance = rackspace.Api(user_manager)
    conn = rpc.Connection.instance()
    rpc_consumer = rpc.AdapterConsumer(connection=conn,
                                       topic=FLAGS.cloud_topic,
                                       proxy=api_instance)

#   TODO: fire rpc response listener (without attach to tornado)
#    io_inst = ioloop.IOLoop.instance()
#    _injected = consumer.attach_to_tornado(io_inst)

    http_server = simple_server.WSGIServer(('0.0.0.0', FLAGS.cc_port), simple_server.WSGIRequestHandler)
    http_server.set_app(api_instance.handler)
    logging.debug('Started HTTP server on port %i' % FLAGS.cc_port)
    while True:
        http_server.handle_request()
#    io_inst.start()

if __name__ == '__main__':
    utils.default_flagfile()
    server.serve('nova-rsapi', main)