import os

import fsutil
from django.conf import settings
from django.utils.module_loading import import_module

if not hasattr(settings, "MAINTENANCE_MODE"):
    settings.MAINTENANCE_MODE = None

if not hasattr(settings, "MAINTENANCE_MODE_GET_CLIENT_IP_ADDRESS"):
    settings.MAINTENANCE_MODE_GET_CLIENT_IP_ADDRESS = None

if not hasattr(settings, "MAINTENANCE_MODE_GET_CONTEXT"):
    settings.MAINTENANCE_MODE_GET_CONTEXT = None

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_ADMIN_SITE"):
    settings.MAINTENANCE_MODE_IGNORE_ADMIN_SITE = None

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_ANONYMOUS_USER"):
    settings.MAINTENANCE_MODE_IGNORE_ANONYMOUS_USER = False

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_AUTHENTICATED_USER"):
    settings.MAINTENANCE_MODE_IGNORE_AUTHENTICATED_USER = False

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_IP_ADDRESSES"):
    settings.MAINTENANCE_MODE_IGNORE_IP_ADDRESSES = None

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_STAFF"):
    settings.MAINTENANCE_MODE_IGNORE_STAFF = False

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_SUPERUSER"):
    settings.MAINTENANCE_MODE_IGNORE_SUPERUSER = False

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_TESTS"):
    settings.MAINTENANCE_MODE_IGNORE_TESTS = False

if not hasattr(settings, "MAINTENANCE_MODE_IGNORE_URLS"):
    settings.MAINTENANCE_MODE_IGNORE_URLS = None

if not hasattr(settings, "MAINTENANCE_MODE_LOGOUT_AUTHENTICATED_USER"):
    settings.MAINTENANCE_MODE_LOGOUT_AUTHENTICATED_USER = False

if not hasattr(settings, "MAINTENANCE_MODE_REDIRECT_URL"):
    settings.MAINTENANCE_MODE_REDIRECT_URL = None

if not hasattr(settings, "MAINTENANCE_MODE_RESPONSE_TYPE"):
    settings.MAINTENANCE_MODE_RESPONSE_TYPE = "html"

if not hasattr(settings, "MAINTENANCE_MODE_RETRY_AFTER"):
    settings.MAINTENANCE_MODE_RETRY_AFTER = 3600

if not hasattr(settings, "MAINTENANCE_MODE_STATE_BACKEND"):
    settings.MAINTENANCE_MODE_STATE_BACKEND = (
        "maintenance_mode.backends.LocalFileBackend"
    )

if not hasattr(settings, "MAINTENANCE_MODE_STATE_BACKEND_FALLBACK_VALUE"):
    settings.MAINTENANCE_MODE_STATE_BACKEND_FALLBACK_VALUE = False

if not hasattr(settings, "MAINTENANCE_MODE_STATE_FILE_NAME"):
    settings.MAINTENANCE_MODE_STATE_FILE_NAME = "maintenance_mode_state.txt"

if not hasattr(settings, "MAINTENANCE_MODE_STATE_FILE_PATH"):
    settings_module = import_module(os.environ["DJANGO_SETTINGS_MODULE"])
    settings.MAINTENANCE_MODE_STATE_FILE_PATH = fsutil.join_path(
        settings_module.__file__, settings.MAINTENANCE_MODE_STATE_FILE_NAME
    )

if not hasattr(settings, "MAINTENANCE_MODE_STATUS_CODE"):
    settings.MAINTENANCE_MODE_STATUS_CODE = 503

if not hasattr(settings, "MAINTENANCE_MODE_TEMPLATE"):
    settings.MAINTENANCE_MODE_TEMPLATE = "503.html"