"""
Django settings

For more information on this file, see
https://docs.djangoproject.com/en/2.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.0/ref/settings/
"""

import os
from os.path import dirname, normpath, join
from .app_settings import *  # noqa: F403, F401 # We need to load app specific settings
import sys

####################################
#
#   Directory locations
#
####################################

BACKEND_ROOT_DIR = dirname(dirname(dirname(os.path.abspath(__file__))))
REPO_ROOT_DIR = dirname(BACKEND_ROOT_DIR)

#
#
#####################################
#
#   Django essential settings
#
#####################################


SECRET_KEY = os.environ["SECRET_KEY"]

ROOT_URLCONF = "base_app.urls"

WSGI_APPLICATION = "base_app.wsgi.application"

STATIC_URL = "/static/"
STATIC_ROOT = normpath(join(BACKEND_ROOT_DIR, "static"))

MEDIA_ROOT = normpath(join(BACKEND_ROOT_DIR, "media"))
MEDIA_URL = "/media/"

#
#
#####################################
#
#   Sub-applications in the app
#
#####################################


INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "django_cas_ng",
    "reversion",
    "reversion_compare",
    "rest_framework",
    "rest_framework.authtoken",
    "backend_app",
    "base_app",
    "webpack_loader",
]

#
#
#####################################
#
#   Rest framework configuration
#
#####################################


REST_FRAMEWORK = {
    # Use Django's standard `django.contrib.auth` permissions,
    "DEFAULT_PERMISSION_CLASSES": (
        "rest_framework.permissions.DjangoModelPermissions",
    ),
    "DEFAULT_AUTHENTICATION_CLASSES": (
        "rest_framework.authentication.SessionAuthentication",
        "rest_framework.authentication.TokenAuthentication",
    ),
}

#
#
#####################################
#
#   Webpack loader config to enable frontend hot module replacement
#
#####################################


WEBPACK_LOADER = {
    "DEFAULT": {
        "BUNDLE_DIR_NAME": "base_app/frontend_dist/bundles/",
        "STATS_FILE": join(REPO_ROOT_DIR, "frontend/webpack-stats.json"),
    }
}

#
#
#####################################
#
#   Middlewares applied to the request
#
#####################################


MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "django.middleware.common.CommonMiddleware",
    "django.middleware.csrf.CsrfViewMiddleware",
    "django.contrib.auth.middleware.AuthenticationMiddleware",
    "django.contrib.messages.middleware.MessageMiddleware",
    "django.middleware.clickjacking.XFrameOptionsMiddleware",
    "base_app.middleware.LoginRequiredMiddleware",
]

#
#
#####################################
#
#   Big variables settings
#
#####################################


if os.environ["ENV"] == "DEV":
    DEBUG = True
    ALLOWED_HOSTS = ["*"]
    INSTALLED_APPS += ["django_extensions", "debug_toolbar"]
    MIDDLEWARE = ["debug_toolbar.middleware.DebugToolbarMiddleware"] + MIDDLEWARE

    # Force the debug toolbar to be shown
    DEBUG_TOOLBAR_CONFIG = {"SHOW_TOOLBAR_CALLBACK": "base_app.utils.show_toolbar"}
else:
    DEBUG = False

TESTING = "pytest" in sys.modules

#
#
#####################################
#
#   Authentication related
#
#####################################


# Use a custom User model for optimization
AUTH_USER_MODEL = "base_app.User"

AUTHENTICATION_BACKENDS = [
    "django.contrib.auth.backends.ModelBackend",
    "django_cas_ng.backends.CASBackend",
]

# Password validation
# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        "NAME": "django.contrib.auth.password_validation."
        "UserAttributeSimilarityValidator"
    },
    {"NAME": "django.contrib.auth.password_validation." "MinimumLengthValidator"},
    {"NAME": "django.contrib.auth.password_validation." "CommonPasswordValidator"},
    {"NAME": "django.contrib.auth.password_validation." "NumericPasswordValidator"},
]

LOGIN_URL = "/user/login"
LOGIN_EXEMPT_URLS = [LOGIN_URL, "/admin/"]

if TESTING:
    # In a testing environment we want to by pass the loginRequiredMiddleware
    LOGIN_EXEMPT_URLS.append("api")

SESSION_EXPIRE_AT_BROWSER_CLOSE = True

#
#
#####################################
#
#   Django Templating settings
#
#####################################


TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [],
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.debug",
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
            ]
        },
    }
]

#
#
#####################################
#
#   Database configuration
#
#####################################

# https://docs.djangoproject.com/en/2.0/ref/settings/#databases

DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.postgresql_psycopg2",
        "NAME": os.environ["POSTGRES_DB"],
        "USER": os.environ["POSTGRES_USER"],
        "PASSWORD": os.environ["POSTGRES_PASSWORD"],
        "HOST": os.environ["DB_HOST"],
        "PORT": os.environ["DB_PORT"],
    }
}

# To use Sqlite, uncomment below and comment above
# DATABASES = {
#     "default": {
#         "ENGINE": "django.db.backends.sqlite3",
#         "NAME": join(BACKEND_ROOT_DIR, "./database.db"),
#     }
# }


#
#
#####################################
#
#   Internationalization
#
#####################################

# https://docs.djangoproject.com/en/2.0/topics/i18n/

LANGUAGE_CODE = "fr-fr"
TIME_ZONE = "Europe/Paris"
USE_I18N = True
USE_L10N = True
USE_TZ = True