# This file is part of photo21
# Copyright (C) 2022  Amicale des élèves de l'ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later

"""
Django settings for photo21 project.

For more information on this file, see
https://docs.djangoproject.com/en/2.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.2/ref/settings/
"""

import os

from decouple import Csv, config
from django.contrib.messages import constants as messages
from django.utils.translation import gettext_lazy as _

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = 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 = config("SECRET_KEY")

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = config("DEBUG", default=False, cast=bool)

ALLOWED_HOSTS = ["127.0.0.1", "localhost"] + config("EXTRA_HOSTS", default="", cast=Csv())

INTERNAL_IPS = [
    "127.0.0.1",
    "localhost",
]

# Admins receive server errors, this is useful to be notified of potential bugs
# Format: "Name:email,Name2:email2"
ADMINS = [tuple(a.split(":")) for a in config("ADMINS", default="", cast=Csv()) if a]

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

# Trust Caddy's forwarded proto header
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

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

# Application definition

OAUTH_ENABLED = config("OAUTH_ENABLED", default=False, cast=bool)
OAUTH_ONLY = config("OAUTH_ONLY", default=False, cast=bool)
OAUTH_CLIENT_ID = config("OAUTH_CLIENT_ID", default="")
OAUTH_CLIENT_SECRET = config("OAUTH_CLIENT_SECRET", default="")
OAUTH_SERVER_URL = config("OAUTH_SERVER_URL", default="")
OAUTH_BUTTON_TEXT = config("OAUTH_BUTTON_TEXT", default="Login with OAuth")
OAUTH_BUTTON_IMAGE = config("OAUTH_BUTTON_IMAGE", default="")
OAUTH_SCOPE = config("OAUTH_SCOPE", default="openid profile email", cast=Csv(delimiter=" "))

INSTALLED_APPS = [
    "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_select2",
    "allauth",
    "allauth.account",
    "allauth.socialaccount",
    "crispy_forms",
    "photologue",
    "photo21",
]

if OAUTH_ENABLED:
    INSTALLED_APPS += ["allauth_oauth"]

if DEBUG:
    INSTALLED_APPS += ["debug_toolbar",]  # For debug and optimisations

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "whitenoise.middleware.WhiteNoiseMiddleware",
    "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",
    "django.middleware.locale.LocaleMiddleware",
    "django.contrib.sites.middleware.CurrentSiteMiddleware",
    "allauth.account.middleware.AccountMiddleware",  # For the django =< 5.0
]
if DEBUG:
    MIDDLEWARE += ["debug_toolbar.middleware.DebugToolbarMiddleware",]

ROOT_URLCONF = "photo21.urls"

TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [os.path.join(BASE_DIR, "photo21/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",
            ],
        },
    },
]

AUTHENTICATION_BACKENDS = [
    # Needed to login by username in Django admin, regardless of `allauth`
    "django.contrib.auth.backends.ModelBackend",
    # `allauth` specific authentication methods, such as login by e-mail
    "allauth.account.auth_backends.AuthenticationBackend",
]

WSGI_APPLICATION = "photo21.wsgi.application"


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

_db_engine = config("DB_ENGINE", default="sqlite").strip().lower()

if _db_engine == "postgres":
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.postgresql",
            "NAME": config("DB_NAME", default="photo21"),
            "USER": config("DB_USER", default="photo21"),
            "PASSWORD": config("DB_PASSWORD", default=""),
            "HOST": config("DB_HOST", default="localhost"),
            "PORT": config("DB_PORT", default="5432"),
        }
    }
elif _db_engine == "sqlite":
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.sqlite3",
            "NAME": config("DB_PATH", default=os.path.join(BASE_DIR, "db.sqlite3")),
            "OPTIONS": {
                "timeout": 10,
            },
        }
    }
else:
    raise ValueError(f"Unknown DB_ENGINE '{_db_engine}'. Must be 'sqlite' or 'postgres'.")

CACHES = {
    "default": {
        "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
        "LOCATION": "Master",
    }
}


# 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/

TIME_ZONE = "UTC"

USE_TZ = True

# Limit available languages to this subset
LANGUAGES = [
    ("en", _("English")),
    ("fr", _("French")),
]

# Allow more fields in URL to edit large galleries
DATA_UPLOAD_MAX_NUMBER_FIELDS = 10240

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

STATIC_URL = "/static/"
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "photo21/static"),
]

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

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

STORAGES = {
    "default": {
        "BACKEND": "django.core.files.storage.FileSystemStorage",
    },
    "staticfiles": {
        "BACKEND": "photo21.storage.CompressedManifestStorage",
    },
}


WHITENOISE_MANIFEST_STRICT = False

LOCALE_PATHS = [os.path.join(BASE_DIR, "photo21/locale")]


# Do not send email during debug
# By default Django sends mails to localhost:25 without authentification
if DEBUG:
    EMAIL_BACKEND = "django.core.mail.backends.console.EmailBackend"

# Mail will be sent from this address
SERVER_EMAIL = config("SERVER_EMAIL", default="photos@crans.org")
DEFAULT_FROM_EMAIL = f"Serveur photos <{SERVER_EMAIL}>"
EMAIL_SUBJECT_PREFIX = "[Serveur photos] "
EMAIL_HOST = config("SMTP_HOST", default="localhost")
EMAIL_PORT = config("SMTP_PORT", default=25, cast=int)
EMAIL_HOST_USER = config("SMTP_USER", default="")
EMAIL_HOST_PASSWORD = config("SMTP_PASSWORD", default="")
EMAIL_USE_TLS = config("SMTP_USE_TLS", default=False, cast=bool)

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

# Use only one Django Sites
SITE_ID = 1

# Django message
MESSAGE_TAGS = {
    messages.DEBUG: "alert-secondary",
    messages.INFO: "alert-info",
    messages.SUCCESS: "alert-success",
    messages.WARNING: "alert-warning",
    messages.ERROR: "alert-danger",
}

# Allauth configuration ## For the django =< 5.0
ACCOUNT_EMAIL_REQUIRED = True
# ACCOUNT_SIGNUP_FIELDS = ['email*', 'username*', 'password1*', 'password2*'] ## For the django =< 5.0
ACCOUNT_EMAIL_VERIFICATION = config("EMAIL_VERIFICATION", default="mandatory")
ACCOUNT_AUTHENTICATION_METHOD = "username_email"
# ACCOUNT_LOGIN_METHODS = {'username', 'email'}
ACCOUNT_FORMS = {"signup": "photo21.forms.CustomSignupForm"}

if OAUTH_ENABLED:
    SOCIALACCOUNT_ONLY = OAUTH_ONLY
    SOCIALACCOUNT_PROVIDERS = {
        "oauth": {
            "SCOPE": OAUTH_SCOPE,
            "DOMAIN": OAUTH_SERVER_URL,
            "APP": {
                "client_id": OAUTH_CLIENT_ID,
                "secret": OAUTH_CLIENT_SECRET,
            },
        },
    }

# Use Bootstrap forms
CRISPY_TEMPLATE_PACK = "bootstrap4"