#!/usr/bin/python2
# PBR Generated from u'wsgi_scripts'

import threading

from nova.api.openstack.placement.wsgi import init_application

if __name__ == "__main__":
    import argparse
    import netaddr
    import socket
    import sys
    import wsgiref.simple_server as wss

    parser = argparse.ArgumentParser(
        description=init_application.__doc__,
        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
        usage='%(prog)s [-h] [--port PORT] [--host IP] -- [passed options]')
    parser.add_argument('--port', '-p', type=int, default=8000,
                        help='TCP port to listen on')
    parser.add_argument('--host', '-b', default='',
                        help='IP to bind the server to')
    parser.add_argument('args',
                        nargs=argparse.REMAINDER,
                        metavar='-- [passed options]',
                        help="'--' is the separator of the arguments used "
                        "to start the WSGI server and the arguments passed "
                        "to the WSGI application.")
    args = parser.parse_args()
    if args.args:
        if args.args[0] == '--':
            args.args.pop(0)
        else:
            parser.error("unrecognized arguments: %s" % ' '.join(args.args))
    sys.argv[1:] = args.args

    # WRS: In order to support IPv6, server_class.address_family must be set
    # to the correct address family.  Determine this from specified address.
    class server_class(wss.WSGIServer):
        pass
    if netaddr.valid_ipv4(args.host):
        server_class.address_family = socket.AF_INET
    else:
        server_class.address_family = socket.AF_INET6

    server = wss.make_server(args.host, args.port, init_application(),
                             server_class=server_class)

    print("*" * 80)
    print("STARTING test server nova.api.openstack.placement.wsgi.init_application")
    url = "http://%s:%d/" % (server.server_name, server.server_port)
    print("Available at %s" % url)
    print("*" * 80)
    sys.stdout.flush()

    server.serve_forever()
else:
    application = None
    app_lock = threading.Lock()

    with app_lock:
        if application is None:
            application = init_application()