# Copyright (C) 2018-2021 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later

# This file implements sane defaults to use in production.
# Some settings are overridable with an environment variable.

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
from datetime import timedelta

BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.getenv('DJANGO_SECRET_KEY', 'CHANGE_ME_IN_ENV_SETTINGS')

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.getenv('DJANGO_DEBUG', False)

ALLOWED_HOSTS = [
    os.getenv('NOTE_URL', 'localhost'),
]

# Use secure cookies in production
SESSION_COOKIE_SECURE = not DEBUG
CSRF_COOKIE_SECURE = not DEBUG

# Remember HTTPS for 1 year
SECURE_HSTS_SECONDS = 31536000
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True


# Application definition

INSTALLED_APPS = [
    # External apps
    'bootstrap_datepicker_plus',
    'colorfield',
    'crispy_forms',
    'django_htcpcp_tea',
    'django_tables2',
    'mailer',
    'phonenumber_field',
    'polymorphic',
    'oauth2_provider',

    # Django contrib
    # Django Admin will autodiscover our apps for our custom admin site.
    'django.contrib.admin',
    'django.contrib.admindocs',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.forms',
    'django_filters',
    'django_extensions',

    # API
    'rest_framework',
    'rest_framework.authtoken',

    # Note apps
    'api',
    'activity',
    'logs',
    'member',
    'note',
    'permission',
    'registration',
    'scripts',
    'sheets',
    'treasury',
    'wei',
]

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.contrib.admindocs.middleware.XViewMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.locale.LocaleMiddleware',
    'django.contrib.sites.middleware.CurrentSiteMiddleware',
    'django_htcpcp_tea.middleware.HTCPCPTeaMiddleware',
    'note_kfet.middlewares.SessionMiddleware',
    'note_kfet.middlewares.LoginByIPMiddleware',
    'note_kfet.middlewares.TurbolinksMiddleware',
    'note_kfet.middlewares.ClacksMiddleware',
]

ROOT_URLCONF = 'note_kfet.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'note_kfet/templates')],
        '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',
                'django.template.context_processors.request',
            ],
        },
    },
]

WSGI_APPLICATION = 'note_kfet.wsgi.application'


# Database
# https://docs.djangoproject.com/en/2.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': os.getenv('DJANGO_DB_ENGINE', 'django.db.backends.postgresql'),
        'NAME': os.getenv('DJANGO_DB_NAME', 'note_db'),
        'USER': os.getenv('DJANGO_DB_USER', 'note'),
        'PASSWORD': os.getenv('DJANGO_DB_PASSWORD', 'CHANGE_ME_IN_ENV_SETTINGS'),
        'HOST': os.getenv('DJANGO_DB_HOST', 'localhost'),
        'PORT': os.getenv('DJANGO_DB_PORT', ''),  # Use default port
    }
}


# Password validation
# https://docs.djangoproject.com/en/2.2/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',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/2.2/topics/i18n/

LANGUAGE_CODE = 'en'

TIME_ZONE = 'Europe/Paris'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Limit available languages to this subset
from django.utils.translation import gettext_lazy as _
LANGUAGES = [
    ('de', _('German')),
    ('en', _('English')),
    ('es', _('Spanish')),
    ('fr', _('French')),
]


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.2/howto/static-files/

STATIC_URL = '/static/'

# Add some custom statics from /note_kfet/static
# Because we are using Debian, also include /usr/share/javascript
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'note_kfet/static'),
    '/usr/share/javascript',
]

# Collect statics to /static/
# THIS FOLDER SOULD NOT BE IN GIT TREE!!!
STATIC_ROOT = os.path.join(BASE_DIR, "static/")

# Add /apps/ directory to Python modules search path
import sys
sys.path.append(os.path.realpath(os.path.join(BASE_DIR, 'apps')))

# Use /locale/ for locale files
LOCALE_PATHS = [os.path.join(BASE_DIR, 'locale')]

# Use /note_kfet/fixtures for database fixtures
FIXTURE_DIRS = [os.path.join(BASE_DIR, 'note_kfet/fixtures')]

# NK15 password hasher for retrocompatibility
# On first login the password will be rehashed with PBKDF2PasswordHasher
PASSWORD_HASHERS = [
    'django.contrib.auth.hashers.PBKDF2PasswordHasher',
    'member.hashers.CustomNK15Hasher',
]

# Custom role-based permission system
AUTHENTICATION_BACKENDS = (
    'permission.backends.PermissionBackend',
)

# Use /media/ for user uploaded media (user profile pictures)
MEDIA_ROOT = os.path.join(BASE_DIR, "media")
MEDIA_URL = '/media/'

# Use mailer in production to place emails in a queue before sending them to avoid spam
EMAIL_BACKEND = 'mailer.backend.DbBackend'
MAILER_EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_USE_SSL = os.getenv('EMAIL_USE_SSL', False)
EMAIL_HOST = os.getenv('EMAIL_HOST', 'smtp.example.org')
EMAIL_PORT = os.getenv('EMAIL_PORT', 25)
EMAIL_HOST_USER = os.getenv('EMAIL_USER', None)
EMAIL_HOST_PASSWORD = os.getenv('EMAIL_PASSWORD', None)

# Mail will be sent from this address
SERVER_EMAIL = os.getenv("NOTE_MAIL", "notekfet@example.com")
DEFAULT_FROM_EMAIL = "NoteKfet2020 <" + SERVER_EMAIL + ">"

# Cache
# https://docs.djangoproject.com/en/2.2/topics/cache/#setting-up-the-cache
cache_address = os.getenv("CACHE_ADDRESS", "127.0.0.1:11211")
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
        'LOCATION': cache_address,
    }
}

# Django REST Framework
REST_FRAMEWORK = {
    'DEFAULT_PERMISSION_CLASSES': [
        # Control API access with our role-based permission system
        'permission.permissions.StrongDjangoObjectPermissions',
    ],
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.SessionAuthentication',
        'rest_framework.authentication.TokenAuthentication',
        'oauth2_provider.contrib.rest_framework.OAuth2Authentication',
    ],
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
}

# OAuth2 Provider
OAUTH2_PROVIDER = {
    'SCOPES_BACKEND_CLASS': 'permission.scopes.PermissionScopes',
    'OAUTH2_VALIDATOR_CLASS': "permission.scopes.PermissionOAuth2Validator",
    'REFRESH_TOKEN_EXPIRE_SECONDS': timedelta(days=14),
}

# Take control on how widget templates are sourced
# See https://docs.djangoproject.com/en/2.2/ref/forms/renderers/#templatessetting
FORM_RENDERER = 'django.forms.renderers.TemplatesSetting'

# After login redirect user to transfer page
LOGIN_REDIRECT_URL = '/'

# An user session will expired after 3 hours
SESSION_COOKIE_AGE = 60 * 60 * 3

# Use Crispy Bootstrap4 theme
CRISPY_TEMPLATE_PACK = 'bootstrap4'

# Use Django Table2 Bootstrap4 theme
DJANGO_TABLES2_TEMPLATE = 'django_tables2/bootstrap4.html'

# Use only one Django Sites
SITE_ID = 1

# Default regex to validate users aliases
ALIAS_VALIDATOR_REGEX = r''

# Profile picture cropping
PIC_WIDTH = 200
PIC_RATIO = 1

# Custom phone number format
PHONENUMBER_DB_FORMAT = 'NATIONAL'
PHONENUMBER_DEFAULT_REGION = 'FR'

# We add custom information to CAS, in order to give a normalized name to other services
CAS_AUTH_CLASS = 'member.auth.CustomAuthUser'