import os
from pathlib import Path

BASE_DIR = Path(__file__).resolve().parent.parent

SECRET_KEY = os.environ.get("SECRET_KEY")
if not SECRET_KEY:
	raise ValueError("SECRET_KEY environment variable must be set")

DEBUG = os.environ.get("DEBUG", "True").lower() in ("true", "1", "yes")

ALLOWED_HOSTS = (
	os.environ.get("ALLOWED_HOSTS", "").split(",")
	if os.environ.get("ALLOWED_HOSTS")
	else []
)

if DEBUG and not os.environ.get("ALLOWED_HOSTS"):
	ALLOWED_HOSTS.extend(["localhost", "127.0.0.1", "django", "nginx"])

CSRF_TRUSTED_ORIGINS = (
	os.environ.get("CSRF_TRUSTED_ORIGINS", "").split(",")
	if os.environ.get("CSRF_TRUSTED_ORIGINS")
	else []
)
NGINX_PORT = os.environ.get("NGINX_PORT", "8080")

for host in ALLOWED_HOSTS:
	if host and host not in ["django", "nginx"]:
		CSRF_TRUSTED_ORIGINS.extend(
			[
				f"http://{host}:{NGINX_PORT}",
				f"https://{host}:{NGINX_PORT}",
				f"http://{host}",
				f"https://{host}",
			]
		)

USE_X_FORWARDED_HOST = True
USE_X_FORWARDED_PORT = True

INSTALLED_APPS = [
	"daphne",
	"django.contrib.admin",
	"django.contrib.auth",
	"django.contrib.contenttypes",
	"django.contrib.sessions",
	"django.contrib.messages",
	"django.contrib.staticfiles",
	# Third party
	"channels",
	"liveview",
	# Kakebo apps
	"app.public.apps.PublicConfig",
	"app.expenses.apps.ExpensesConfig",
	"app.monthly.apps.MonthlyConfig",
	"app.yearly.apps.YearlyConfig",
	# Vite
	"django_vite",
	# API
	"rest_framework",
	"app.api.apps.ApiConfig",
]

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",
]

ROOT_URLCONF = "core.urls"

TEMPLATES = [
	{
		"BACKEND": "django.template.backends.django.DjangoTemplates",
		"DIRS": [BASE_DIR / "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",
			],
		},
	},
]

WSGI_APPLICATION = "core.wsgi.application"
ASGI_APPLICATION = "core.asgi.application"

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

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"},
]

LANGUAGE_CODE = "en-us"
TIME_ZONE = "Europe/Madrid"
USE_I18N = True
USE_TZ = True

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

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

LOGIN_URL = "/login/"
LOGIN_REDIRECT_URL = "/"
LOGOUT_REDIRECT_URL = "/login/"

# Django Channels
CHANNEL_LAYERS = {
	"default": {
		"BACKEND": "channels_redis.core.RedisChannelLayer",
		"CONFIG": {
			"hosts": [
				(
					os.environ.get("REDIS_HOST", "redis"),
					int(os.environ.get("REDIS_PORT", 6379)),
				)
			],
		},
	},
}

SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")

# Django Vite
DJANGO_VITE = {
	"default": {
		"dev_mode": False,
		"manifest_path": BASE_DIR / "static" / ".vite" / "manifest.json",
	}
}

# Django REST Framework
REST_FRAMEWORK = {
	"DEFAULT_AUTHENTICATION_CLASSES": [],
	"DEFAULT_PERMISSION_CLASSES": [
		"rest_framework.permissions.IsAuthenticated",
	],
	"DEFAULT_RENDERER_CLASSES": [
		"rest_framework.renderers.JSONRenderer",
	],
}