import os
from datetime import timedelta
from pathlib import Path

from dotenv import load_dotenv

load_dotenv()

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

SECRET_KEY = os.environ.get("DJANGO_SECRET_KEY")

DEBUG = os.getenv("DEBUG", "False").lower() in ("true", "1", "yes")

DJANGO_APPS = [
    "unfold",
    "unfold.contrib.filters",
    "unfold.contrib.forms",
    "unfold.contrib.import_export",
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
]

THIRD_PARTY_APPS = [
    "rest_framework",
    "rest_framework_simplejwt",
    "rest_framework.authtoken",
    "rest_framework_simplejwt.token_blacklist",
    "drf_spectacular",
    "drf_spectacular_sidecar",
    "django_filters",
    "import_export",
    "corsheaders",
    "auditlog",
]

LOCAL_APPS = [
    "apps.users",
    "apps.workspaces",
    "apps.clients",
    "apps.projects",
    "apps.tags",
    "apps.time_entries",
    "apps.notifications",
]

INSTALLED_APPS = DJANGO_APPS + THIRD_PARTY_APPS + LOCAL_APPS

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "corsheaders.middleware.CorsMiddleware",
    "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",
    "core.middlewares.current_user.CurrentUserMiddleware",
    "core.middlewares.exception_logging.ExceptionLoggingMiddleware",
    "config.services.logging.RequestLoggingMiddleware",
    "auditlog.middleware.AuditlogMiddleware",
]

ROOT_URLCONF = "config.urls"

AUTH_USER_MODEL = "users.User"

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",
            ],
        },
    },
]

ASGI_APPLICATION = "config.asgi.application"

DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": os.getenv("POSTGRES_DB"),
        "USER": os.getenv("POSTGRES_USER"),
        "PASSWORD": os.getenv("POSTGRES_PASSWORD"),
        "HOST": os.getenv("POSTGRES_HOST"),
        "PORT": os.getenv("POSTGRES_PORT"),
        "CONN_MAX_AGE": 0,
        "DISABLE_SERVER_SIDE_CURSORS": True,
    }
}

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",
    },
]

REST_FRAMEWORK = {
    "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "rest_framework_simplejwt.authentication.JWTAuthentication",
    ],
    "DEFAULT_PERMISSION_CLASSES": ["rest_framework.permissions.AllowAny"],
    "DEFAULT_FILTER_BACKENDS": ["django_filters.rest_framework.DjangoFilterBackend"],
    "DATETIME_FORMAT": "%Y-%m-%d %H:%M",
    "DATE_FORMAT": "%Y-%m-%d",
    "DEFAULT_THROTTLE_CLASSES": [
        "rest_framework.throttling.AnonRateThrottle",
        "rest_framework.throttling.UserRateThrottle",
    ],
    "EXCEPTION_HANDLER": "core.exceptions.handlers.exception_handler",
}

LANGUAGE_CODE = os.getenv("LANGUAGE_CODE", "en-us")
TIME_ZONE = os.getenv("TIME_ZONE", "Asia/Tehran")
USE_I18N = True
USE_TZ = True

STATIC_URL = "/static/"
STATIC_ROOT = BASE_DIR / "static"
MEDIA_URL = "/media/"
MEDIA_ROOT = BASE_DIR / "media"

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

SPECTACULAR_SETTINGS = {
    "TITLE": "Qlockify.ir API Documentation",
    "DESCRIPTION": "API documentation for Qlockify.ir",
    "VERSION": "1.0.0",
    "SERVE_INCLUDE_SCHEMA": True,
    "SWAGGER_UI_SETTINGS": {
        "deepLinking": True,
    },
    "COMPONENT_SPLIT_REQUEST": True,
    "ENUM_NAME_OVERRIDES": {},
    "TAG_SORTING": "alpha",
    "SWAGGER_UI_DIST": "SIDECAR",
    "SWAGGER_UI_FAVICON_HREF": "SIDECAR",
    "REDOC_DIST": "SIDECAR",
}

JWT_ACCESS_TOKEN_LIFETIME = int(os.getenv("JWT_ACCESS_TOKEN_LIFETIME_MINUTES", 60))
JWT_REFRESH_TOKEN_LIFETIME = int(os.getenv("JWT_REFRESH_TOKEN_LIFETIME_DAYS", 7))
JWT_ROTATE_REFRESH_TOKENS = os.getenv("JWT_ROTATE_REFRESH_TOKENS", "True") == "True"
JWT_BLACKLIST_AFTER_ROTATION = os.getenv("JWT_BLACKLIST_AFTER_ROTATION", "True") == "True"
JWT_ALGORITHM = os.getenv("JWT_ALGORITHM", "HS256")

SIMPLE_JWT = {
    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=JWT_ACCESS_TOKEN_LIFETIME),
    "REFRESH_TOKEN_LIFETIME": timedelta(days=JWT_REFRESH_TOKEN_LIFETIME),
    "ROTATE_REFRESH_TOKENS": JWT_ROTATE_REFRESH_TOKENS,
    "BLACKLIST_AFTER_ROTATION": JWT_BLACKLIST_AFTER_ROTATION,
    "ALGORITHM": JWT_ALGORITHM,
    "SIGNING_KEY": SECRET_KEY,
    "AUTH_HEADER_TYPES": ("Bearer",),
    "AUTH_HEADER_NAME": "HTTP_AUTHORIZATION",
    "USER_ID_FIELD": "id",
    "USER_ID_CLAIM": "user_id",
}

REDIS_HOST = os.getenv("REDIS_HOST", "localhost")
REDIS_PORT = os.getenv("REDIS_PORT", "6379")
REDIS_PASSWORD = os.getenv("REDIS_PASSWORD", "")

if REDIS_PASSWORD:
    REDIS_URL = f"redis://:{REDIS_PASSWORD}@{REDIS_HOST}:{REDIS_PORT}/0"
else:
    REDIS_URL = f"redis://{REDIS_HOST}:{REDIS_PORT}/0"

CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": REDIS_URL,
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient",
        },
    }
}

CELERY_BROKER_URL = os.getenv("CELERY_BROKER_URL", f"redis://:{REDIS_PASSWORD}@{REDIS_HOST}:{REDIS_PORT}/1")
CELERY_RESULT_BACKEND = os.getenv("CELERY_RESULT_BACKEND", "redis://127.0.0.1:6379/1")
CELERY_ACCEPT_CONTENT = ["json"]
CELERY_TASK_SERIALIZER = "json"
CELERY_RESULT_SERIALIZER = "json"
CELERY_TASK_ALWAYS_EAGER = False
CELERY_TIMEZONE = os.getenv("TIME_ZONE")
CELERY_TASK_TRACK_STARTED = True

NOTIFICATIONS_ENABLED = os.getenv("NOTIFICATIONS_ENABLED", "True") == "True"
NOTIFICATION_STREAM_TOKEN_LIFETIME_SECONDS = int(
    os.getenv("NOTIFICATION_STREAM_TOKEN_LIFETIME_SECONDS", "90")
)
NOTIFICATION_SSE_HEARTBEAT_SECONDS = int(
    os.getenv("NOTIFICATION_SSE_HEARTBEAT_SECONDS", "20")
)
NOTIFICATION_SSE_RETRY_MS = int(os.getenv("NOTIFICATION_SSE_RETRY_MS", "5000"))
NOTIFICATION_DEFAULT_PAGE_SIZE = int(
    os.getenv("NOTIFICATION_DEFAULT_PAGE_SIZE", "20")
)
NOTIFICATION_MAX_PAGE_SIZE = int(os.getenv("NOTIFICATION_MAX_PAGE_SIZE", "50"))
NOTIFICATION_REDIS_CHANNEL_PREFIX = os.getenv(
    "NOTIFICATION_REDIS_CHANNEL_PREFIX", "notif:user"
)
NOTIFICATION_RETENTION_DAYS = int(os.getenv("NOTIFICATION_RETENTION_DAYS", "30"))
NOTIFICATION_TOAST_LEVELS = tuple(
    level.strip()
    for level in os.getenv(
        "NOTIFICATION_TOAST_LEVELS", "info,success,warning,error"
    ).split(",")
    if level.strip()
)

CELERY_IMPORTS = ("apps.users.tasks", "apps.notifications.tasks")


STORAGES = {
    "default": {"BACKEND": "django.core.files.storage.FileSystemStorage"},
    "images": {"BACKEND": "config.services.storage.UploadStorage"},
    "staticfiles": {
        "BACKEND": "django.contrib.staticfiles.storage.StaticFilesStorage",
    },
}

SMS_APIKEY = os.getenv("SMS_APIKEY", "")
BASE_URL = os.getenv("BASE_URL", "")