import os
from pathlib import Path
from dotenv import load_dotenv
from datetime import timedelta

BASE_DIR = Path(__file__).resolve().parent.parent
load_dotenv(dotenv_path=BASE_DIR / './.env')

SECRET_KEY = os.environ.get("SECRET_KEY")
DEBUG = os.environ.get("DEBUG_MODE")

ALLOWED_HOSTS = os.environ.get("ALLOWED_HOSTS", "").split(",")
CSRF_TRUSTED_ORIGINS = os.environ.get("CSRF_TRUSTED_ORIGINS", "").split(",")

CORS_ALLOW_CREDENTIALS = True  # для разрешения cookie
CORS_ALLOW_ALL_ORIGINS = False # запрет всех доменов, кроме whitelist
CORS_ALLOWED_ORIGINS = os.environ.get("CORS_ALLOWED_ORIGINS", "").split(",")

CORS_ALLOW_METHODS = [
    "GET",
    "POST",
    "HEAD",
    "PUT",
    "DELETE",
    "OPTIONS",
    "PATCH"
]

CORS_ALLOW_HEADERS = [
    'x-api-key', 
    'content-type',
    'authorization',
    'accept',
    'cookie'
]

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


SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(minutes=15),
    '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,
    'AUTH_HEADER_TYPES': ('Bearer',),
    'AUTH_TOKEN_CLASSES': ('rest_framework_simplejwt.tokens.AccessToken',),
}

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'corsheaders',
    'api.apps.ApiConfig',
    'sitemanagement.apps.SitemanagementConfig',
    'rest_framework',
    'drf_spectacular',
]

#!OpenAPI
SPECTACULAR_SETTINGS = {
    'TITLE': 'AERBIM API',
    'DESCRIPTION': 'AERBIM - документация по API',
    'VERSION': '1.0.0',
    'SERVE_INCLUDE_SCHEMA': False,
    'SCHEMA_PATH_PREFIX': '/api/v[0-9]',
    'COMPONENT_SPLIT_REQUEST': False, # не создавать автоматически *Request схемы
    
    'COMPONENT_NO_READ_ONLY_REQUIRED': True,  # не требовать read_only поля
    'COMPONENT_SPLIT_PATCHES': False,  # не создавать отдельные схемы для PATCH
    
    # настройки безопасности
    'SECURITY': [{'Bearer': []}],
    'SWAGGER_UI_SETTINGS': {
        'persistAuthorization': True,
    },
    
    # сортировка тегов и операций
    'TAGS': [
        {'name': 'Логаут', 'description': 'Метод для работы с логаутом'},
        {'name': 'Логин', 'description': 'Методы для работы с логином'},
        {'name': 'Профиль', 'description': 'Методы для получения данных профиля пользователя'},
    ],
}

MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'base.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'base.wsgi.application'


DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": os.environ.get("DB_NAME"),
        "USER": os.environ.get("DB_USER"),
        "PASSWORD": os.environ.get("DB_PASSWORD"),
        "HOST": os.environ.get("DB_HOST"),
        "PORT": os.environ.get("DB_PORT"),
    }
}


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 = 'ru-ru'
TIME_ZONE = 'Europe/Minsk'
USE_TZ = True
USE_I18N = True
USE_L10N = True


STATIC_URL = 'static/'

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
