from autosecretkey import AutoSecretKey

from pathlib import Path

from django.urls import reverse_lazy

import datetime

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent

ASK = AutoSecretKey("settings.ini")

SECRET_KEY = ASK.secret_key

DEBUG = ASK.config.getboolean("CaffeinatedDomains", "Debug", fallback=False)

ALLOWED_HOSTS = [
    host.strip()
    for host in ASK.config.get("CaffeinatedDomains", "Host", fallback="*").split(",")
]

CSRF_TRUSTED_ORIGINS = [f"https://{host}" for host in ALLOWED_HOSTS]
FRONTEND_URL = CSRF_TRUSTED_ORIGINS[0]

USE_X_FORWARDED_HOST = True
SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")

# Application definition

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "polymorphic",
    "rest_framework",
    "rest_framework_simplejwt",
    "django_celery_beat",
    "django_celery_results",
    "drf_spectacular",
    "drf_spectacular_sidecar",
    "crispy_forms",
    "crispy_bootstrap5",
    "caffeinateddomains",
    "caffeinateddomains.users",
    "caffeinateddomains.domains",
]

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",
]

ROOT_URLCONF = "caffeinateddomains.urls"

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",
            ],
        },
    },
]

WSGI_APPLICATION = "caffeinateddomains.wsgi.application"


# Database
# https://docs.djangoproject.com/en/5.0/ref/settings/#databases

if (dbtype := "MySQL") in ASK.config or (dbtype := "MariaDB") in ASK.config:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.mysql",
            "NAME": ASK.config.get(dbtype, "Database"),
            "USER": ASK.config.get(dbtype, "Username"),
            "PASSWORD": ASK.config.get(dbtype, "Password"),
            "HOST": ASK.config.get(dbtype, "Host", fallback="localhost"),
            "PORT": ASK.config.getint(dbtype, "Port", fallback=3306),
        }
    }

elif (dbtype := "Postgres") in ASK.config or (dbtype := "PostgreSQL") in ASK.config:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.postgresql",
            "NAME": ASK.config.get(dbtype, "Database"),
            "USER": ASK.config.get(dbtype, "Username"),
            "PASSWORD": ASK.config.get(dbtype, "Password"),
            "HOST": ASK.config.get(dbtype, "Host", fallback="localhost"),
            "PORT": ASK.config.getint(dbtype, "Port", fallback=5432),
        }
    }

else:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.sqlite3",
            "NAME": "db.sqlite3",
        }
    }


# Password validation
# https://docs.djangoproject.com/en/5.0/ref/settings/#auth-password-validators

AUTH_USER_MODEL = "users.User"

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",
    },
]

PASSWORD_HASHERS = [
    "django.contrib.auth.hashers.Argon2PasswordHasher",
    "django.contrib.auth.hashers.PBKDF2PasswordHasher",
    "django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher",
    "django.contrib.auth.hashers.BCryptSHA256PasswordHasher",
    "django.contrib.auth.hashers.ScryptPasswordHasher",
]

# Internationalization
# https://docs.djangoproject.com/en/5.0/topics/i18n/

LANGUAGE_CODE = "en-us"

TIME_ZONE = "UTC"

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.0/howto/static-files/

STATIC_URL = "static/"

STATICFILES_DIRS = [
    "static",
]

# Settings for uploaded files

MEDIA_URL = "/media/"
MEDIA_ROOT = ASK.config.get("CaffeinatedDomains", "MediaRoot", fallback="media")

if "S3" in ASK.config:
    DEFAULT_FILE_STORAGE = "storages.backends.s3boto3.S3Boto3Storage"

    if not ASK.config.getboolean("S3", "LocalStatic", fallback=False):
        STATICFILES_STORAGE = "storages.backends.s3boto3.S3StaticStorage"

    AWS_ACCESS_KEY_ID = ASK.config.get("S3", "AccessKey")
    AWS_SECRET_ACCESS_KEY = ASK.config.get("S3", "SecretKey")
    AWS_STORAGE_BUCKET_NAME = ASK.config.get("S3", "Bucket")
    AWS_S3_ENDPOINT_URL = ASK.config.get("S3", "Endpoint")

# Default primary key field type
# https://docs.djangoproject.com/en/5.0/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# Django Rest Framework settings

SPECTACULAR_SETTINGS = {
    "SWAGGER_UI_DIST": "SIDECAR",
    "SWAGGER_UI_FAVICON_HREF": "SIDECAR",
    "REDOC_DIST": "SIDECAR",
}

REST_FRAMEWORK = {
    "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "rest_framework_simplejwt.authentication.JWTAuthentication",
    ],
}

SIMPLE_JWT = {
    "ACCESS_TOKEN_LIFETIME": datetime.timedelta(minutes=5),
    "REFRESH_TOKEN_LIFETIME": datetime.timedelta(days=1),
    "ROTATE_REFRESH_TOKENS": True,
    "AUTH_HEADER_TYPES": ("Bearer",),
}

# Celery settings

CELERY_BROKER_URL = ASK.config.get(
    "CaffeinatedDomains", "Redis", fallback="redis://localhost:6379/0"
)
CELERY_RESULT_BACKEND = "django-db"

# TODO: CSP settings

# Authentication

LOGIN_URL = reverse_lazy("caffeinateddomains.users:login")
LOGIN_REDIRECT_URL = reverse_lazy("caffeinateddomains.users:categories")
LOGOUT_REDIRECT_URL = reverse_lazy("caffeinateddomains.users:login")

# Crispy forms settings

CRISPY_ALLOWED_TEMPLATE_PACKS = {"bootstrap5"}
CRISPY_TEMPLATE_PACK = "bootstrap5"

# Email settings

EMAIL_BACKEND = (
    "django.core.mail.backends.smtp.EmailBackend"
    if "SMTP" in ASK.config
    else "django.core.mail.backends.console.EmailBackend"
)
EMAIL_HOST = ASK.config.get("Email", "Host")
EMAIL_USE_TLS = ASK.config.getboolean("Email", "TLS", fallback=True)
EMAIL_PORT = ASK.config.getint("Email", "Port", fallback=587 if EMAIL_USE_TLS else 25)
EMAIL_HOST_USER = ASK.config.get("Email", "Username")
EMAIL_HOST_PASSWORD = ASK.config.get("Email", "Password")
DEFAULT_FROM_EMAIL = ASK.config.get("Email", "From", fallback=EMAIL_HOST_USER)