import os
import Bcfg2.Options
import Bcfg2.DBSettings

config_parsed = False

def application(environ, start_response):
    global config_parsed

    # with wsgi, the environment isn't present in os.environ, but
    # is passwd to the application function
    if 'BCFG2_CONFIG_FILE' in environ:
        os.environ['BCFG2_CONFIG_FILE'] = environ['BCFG2_CONFIG_FILE']
    if not config_parsed:
        Bcfg2.Options.get_parser().parse()
        config_parsed = True

    try:
        from django.core.wsgi import get_wsgi_application
        return get_wsgi_application()(environ, start_response)
    except ImportError:
        import django.core.handlers.wsgi
        return django.core.handlers.wsgi.WSGIHandler()(environ, start_response)