"""
Django settings for student_management_system project.

Generated by 'django-admin startproject' using Django 5.1.6.

For more information on this file, see
https://docs.djangoproject.com/en/5.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/5.1/ref/settings/
"""

import os
from pathlib import Path
from student_management_system.jazzmin import JAZZMIN_SETTINGS, JAZZMIN_UI_TWEAKS
from student_management_system.config import get_django_settings

# Get configuration
config = get_django_settings()

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

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/5.1/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"]

ALLOWED_HOSTS = config["ALLOWED_HOSTS"]

# Application definition

INSTALLED_APPS = [
    "jazzmin",
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "rest_framework",
    "mathfilters",
    "app",
]

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "whitenoise.middleware.WhiteNoiseMiddleware",
    "django.middleware.cache.UpdateCacheMiddleware",
    "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",
    "app.middleware.HTTP505Middleware",
    "django.middleware.cache.FetchFromCacheMiddleware",
]

AUTHENTICATION_BACKENDS = [
    "app.backends.MultiModelBackend",
    "django.contrib.auth.backends.ModelBackend",
]

REST_FRAMEWORK = {
    "DEFAULT_PERMISSION_CLASSES": ["rest_framework.permissions.AllowAny"],
    "DEFAULT_RENDERER_CLASSES": [
        "rest_framework.renderers.JSONRenderer",
    ],
}

ROOT_URLCONF = "student_management_system.urls"

TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [os.path.join(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 = "student_management_system.wsgi.application"


# Database
# https://docs.djangoproject.com/en/5.1/ref/settings/#databases

DATABASES = config["DATABASES"]

# Database optimization settings
DATABASE_ROUTERS = ['app.routers.DatabaseRouter']

# Query optimization
DATABASE_OPTIMIZATION = {
    'DEFAULT_QUERY_TIMEOUT': 30,
    'MAX_QUERY_SIZE': 1000,
    'ENABLE_QUERY_CACHE': True,
    'QUERY_CACHE_TIMEOUT': 300
}

# Password validation
# https://docs.djangoproject.com/en/5.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
        "OPTIONS": {
            "user_attributes": ("username", "email", "first_name", "last_name"),
            "max_similarity": 0.7
        }
    },
    {
        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
        "OPTIONS": {
            "min_length": 12,
        }
    },
    {
        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
    },
]


# Internationalization
# https://docs.djangoproject.com/en/5.1/topics/i18n/

LANGUAGE_CODE = "en-us"

TIME_ZONE = "Asia/Kathmandu"

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.1/howto/static-files/

STATIC_URL = "/static/"
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "static"),
]
STATIC_ROOT = os.path.join(BASE_DIR, "staticfiles")
STATICFILES_FINDERS = [
    "django.contrib.staticfiles.finders.FileSystemFinder",
    "django.contrib.staticfiles.finders.AppDirectoriesFinder",
]

# Configure whitenoise
STATICFILES_STORAGE = "whitenoise.storage.CompressedManifestStaticFilesStorage"

# Default primary key field type
# https://docs.djangoproject.com/en/5.1/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

MEDIA_URL = "/media/"
MEDIA_ROOT = os.path.join(BASE_DIR, "media")


# Jazmin Settings
JAZZMIN_SETTINGS = JAZZMIN_SETTINGS
JAZZMIN_UI_TWEAKS = JAZZMIN_UI_TWEAKS

# Login redirect URL
LOGIN_REDIRECT_URL = '/app/dashboard/'
LOGIN_URL = '/login/'

# Email Configuration
EMAIL_BACKEND = config["EMAIL_BACKEND"]
DEFAULT_FROM_EMAIL = config["DEFAULT_FROM_EMAIL"]
EMAIL_HOST = config["EMAIL_HOST"]
EMAIL_PORT = config["EMAIL_PORT"]
EMAIL_HOST_USER = config["EMAIL_HOST_USER"]
EMAIL_HOST_PASSWORD = config["EMAIL_HOST_PASSWORD"]
EMAIL_USE_TLS = config["EMAIL_USE_TLS"]

# Cache configuration
CACHES = config["CACHES"]

# Cache settings
CACHE_MIDDLEWARE_ALIAS = 'default'
CACHE_MIDDLEWARE_SECONDS = 300
CACHE_MIDDLEWARE_KEY_PREFIX = 'sms'

# SMS API configuration
SMS_API_KEY = config["SMS_API_KEY"]
SMS_SENDER_ID = config["SMS_SENDER_ID"]

# CSRF settings
CSRF_TRUSTED_ORIGINS = [
    "https://*.ngrok-free.app",
    "https://*.ngrok.io"
]

# Firebase settings
FIREBASE_API_KEY = config["FIREBASE_API_KEY"]
FIREBASE_AUTH_DOMAIN = config["FIREBASE_AUTH_DOMAIN"]
FIREBASE_PROJECT_ID = config["FIREBASE_PROJECT_ID"]
FIREBASE_STORAGE_BUCKET = config["FIREBASE_STORAGE_BUCKET"]
FIREBASE_MESSAGING_SENDER_ID = config["FIREBASE_MESSAGING_SENDER_ID"]
FIREBASE_APP_ID = config["FIREBASE_APP_ID"]
FIREBASE_MEASUREMENT_ID = config["FIREBASE_MEASUREMENT_ID"]

# Load balancing settings
USE_X_FORWARDED_HOST = True
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

# Gunicorn settings
GUNICORN_WORKERS = config["GUNICORN_WORKERS"]
GUNICORN_THREADS = config["GUNICORN_THREADS"]
GUNICORN_TIMEOUT = config["GUNICORN_TIMEOUT"]
GUNICORN_KEEPALIVE = config["GUNICORN_KEEPALIVE"]

# Static files serving optimization
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
WHITENOISE_MAX_AGE = 31536000  # 1 year
WHITENOISE_USE_FINDERS = True
WHITENOISE_AUTOREFRESH = True

# Security settings
SECURE_SSL_REDIRECT = not DEBUG
SESSION_COOKIE_SECURE = not DEBUG
CSRF_COOKIE_SECURE = not DEBUG
SECURE_BROWSER_XSS_FILTER = True
SECURE_CONTENT_TYPE_NOSNIFF = True
X_FRAME_OPTIONS = 'DENY'
SECURE_HSTS_SECONDS = 31536000  # 1 year
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True

# Session settings
SESSION_COOKIE_AGE = 3600  # 1 hour
SESSION_SAVE_EVERY_REQUEST = True
SESSION_EXPIRE_AT_BROWSER_CLOSE = True

# CSRF settings
CSRF_COOKIE_HTTPONLY = True
CSRF_COOKIE_SAMESITE = 'Strict'
CSRF_USE_SESSIONS = True

# Session settings
SESSION_COOKIE_HTTPONLY = True
SESSION_COOKIE_SAMESITE = 'Strict'

# Background Tasks Configuration
BACKGROUND_TASK_RUN_ASYNC = True
MAX_ATTEMPTS = 3  # Maximum number of retries for failed tasks
MAX_RUN_TIME = 3600  # Maximum time a task can run (in seconds)