"""
Base settings for Django project.

Generated by 'django-admin startproject' using Django 3.2.25.
"""

import os
from pathlib import Path
from decouple import Config, RepositoryEnv

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

# Load environment variables
ENV_FILE = BASE_DIR / ".env"
if ENV_FILE.exists():
    config = Config(RepositoryEnv(str(ENV_FILE)))
else:
    from decouple import AutoConfig
    config = AutoConfig(search_path=BASE_DIR)

# Helper function for getting config values
def get_env(key, default=None):
    return config(key, default=default)

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = get_env("SECRET_KEY", "django-insecure-development-key-change-in-production")

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = get_env("DEBUG", True)
if isinstance(DEBUG, str):
    DEBUG = DEBUG.lower() in ('true', '1', 'yes')

ALLOWED_HOSTS = get_env("ALLOWED_HOSTS", "localhost,127.0.0.1")
if isinstance(ALLOWED_HOSTS, str):
    ALLOWED_HOSTS = ALLOWED_HOSTS.split(",")

# Application definition
INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",

    # Third-party apps
    "rest_framework",
    "corsheaders",
    "django_celery_beat",
    "django_celery_results",
    "drf_yasg",

    # Local apps
    "apps.user",

]

MIDDLEWARE = [
    "corsheaders.middleware.CorsMiddleware",
    "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 = "config.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 = "config.wsgi.application"

# Database
DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": get_env("POSTGRES_DB", "project_db"),
        "USER": get_env("POSTGRES_USER", "project_user"),
        "PASSWORD": get_env("POSTGRES_PASSWORD", "project_password"),
        "HOST": get_env("POSTGRES_HOST", "db"),
        "PORT": int(get_env("POSTGRES_PORT", "5432")),
        "OPTIONS": {
            "charset": "utf8mb4",
        },
        },
}



# Password validation
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
LANGUAGE_CODE = "ru-RU"
TIME_ZONE = "UTC"
USE_I18N = True
USE_L10N = True
USE_TZ = True

# Static files (CSS, JavaScript, Images)
STATIC_URL = "/static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STATICFILES_DIRS = [BASE_DIR / "static"]

# Media files
MEDIA_URL = "/media/"
MEDIA_ROOT = BASE_DIR / "media"

# Default primary key field type
DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# Custom user model
AUTH_USER_MODEL = "user.User"

# REST Framework settings
REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "rest_framework_simplejwt.authentication.JWTAuthentication",
        "rest_framework.authentication.SessionAuthentication",
    ],
    "DEFAULT_PERMISSION_CLASSES": [
        "rest_framework.permissions.IsAuthenticatedOrReadOnly",
    ],
    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.PageNumberPagination",
    "PAGE_SIZE": 20,
    "DEFAULT_RENDERER_CLASSES": [
        "rest_framework.renderers.JSONRenderer",
        "rest_framework.renderers.BrowsableAPIRenderer",
    ],
}

# JWT settings
from datetime import timedelta

SIMPLE_JWT = {
    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=60),
    "REFRESH_TOKEN_LIFETIME": timedelta(days=7),
    "ROTATE_REFRESH_TOKENS": True,
    "BLACKLIST_AFTER_ROTATION": True,
    "UPDATE_LAST_LOGIN": True,
    "ALGORITHM": "HS256",
    "SIGNING_KEY": SECRET_KEY,
    "VERIFYING_KEY": None,
    "AUDIENCE": None,
    "ISSUER": None,
    "JWK_URL": None,
    "LEEWAY": 0,
    
    "AUTH_HEADER_TYPES": ("Bearer",),
    "AUTH_HEADER_NAME": "HTTP_AUTHORIZATION",
    "USER_ID_FIELD": "id",
    "USER_ID_CLAIM": "user_id",
    "USER_AUTHENTICATION_RULE": "rest_framework_simplejwt.authentication.default_user_authentication_rule",
    
    "AUTH_TOKEN_CLASSES": ("rest_framework_simplejwt.tokens.AccessToken",),
    "TOKEN_TYPE_CLAIM": "token_type",
    "TOKEN_USER_CLASS": "rest_framework_simplejwt.models.TokenUser",
    
    "JTI_CLAIM": "jti",
    
    "SLIDING_TOKEN_REFRESH_EXP_CLAIM": "refresh_exp",
    "SLIDING_TOKEN_LIFETIME": timedelta(minutes=5),
    "SLIDING_TOKEN_REFRESH_LIFETIME": timedelta(days=1),
}

# CORS settings
CORS_ALLOWED_ORIGINS = get_env("CORS_ALLOWED_ORIGINS", "http://localhost:3000,http://127.0.0.1:3000")
if isinstance(CORS_ALLOWED_ORIGINS, str):
    CORS_ALLOWED_ORIGINS = CORS_ALLOWED_ORIGINS.split(",")
CORS_ALLOW_CREDENTIALS = True

# Logging configuration
LOGGING = {
    "version": 1,
    "disable_existing_loggers": False,
    "formatters": {
        "verbose": {
            "format": "{levelname} {asctime} {module} {process:d} {thread:d} {message}",
            "style": "{",
        },
        "simple": {
            "format": "{levelname} {message}",
            "style": "{",
        },
    },
    "handlers": {
        "file": {
            "level": "INFO",
            "class": "logging.FileHandler",
            "filename": BASE_DIR / "logs/django.log",
            "formatter": "verbose",
        },
        "console": {
            "level": "INFO",
            "class": "logging.StreamHandler",
            "formatter": "simple",
        },
    },
    "root": {
        "handlers": ["console", "file"],
        "level": "INFO",
    },
    "loggers": {
        "django": {
            "handlers": ["console", "file"],
            "level": "INFO",
            "propagate": False,
        },

    },
}