# config/settings.py
"""
تنظیمات جنگو برای پروژه «شاپ‌شیپ».
همه‌ی مقادیر حساس/محیطی از .env خوانده می‌شوند.
"""

import os
from datetime import timedelta
from pathlib import Path

from decouple import Config, Csv, RepositoryEnv

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

# ============================================
# بارگذاری فایل .env
# ============================================
_env_path = BASE_DIR / ".env"
if not _env_path.exists():
    raise RuntimeError(
        f"❌ فایل .env پیدا نشد ({_env_path}) — لطفاً یک فایل .env ایجاد کنید."
    )
config = Config(RepositoryEnv(str(_env_path)))

# ============================================
# امنیت و محیط اجرا
# ============================================
SECRET_KEY = config("SECRET_KEY")
DEBUG = False
ALLOWED_HOSTS = config("ALLOWED_HOSTS", default="localhost,127.0.0.1", cast=Csv())

# ============================================
# اپلیکیشن‌ها
# ============================================
DJANGO_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
]

THIRD_PARTY_APPS = [
    "corsheaders",
    "rest_framework",
    "rest_framework_simplejwt",
    "rest_framework_simplejwt.token_blacklist",
]

LOCAL_APPS = [
    "apps.account",
    "apps.banker",
    "apps.messaging",
    "apps.bizapps",
    "apps.billing",
    "apps.notifications",
    "apps.landing",
    "apps.orders",
]

INSTALLED_APPS = DJANGO_APPS + THIRD_PARTY_APPS + LOCAL_APPS

# ============================================
# Middleware
# ============================================
MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "whitenoise.middleware.WhiteNoiseMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "corsheaders.middleware.CorsMiddleware",
    "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"
WSGI_APPLICATION = "config.wsgi.application"

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

# ============================================
# Database
# ============================================
DATABASES = {
    "default": {
        "ENGINE": config("DB_ENGINE", default="django.db.backends.sqlite3"),
        "NAME": config("DB_NAME", default=BASE_DIR / "db.sqlite3"),
        "USER": config("DB_USER", default=""),
        "PASSWORD": config("DB_PASSWORD", default=""),
        "HOST": config("DB_HOST", default=""),
        "PORT": config("DB_PORT", default=""),
    }
}

# ============================================
# Auth
# ============================================
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"},
]

AUTH_USER_MODEL = "account.User"

# ============================================
# بین‌الملل
# ============================================
LANGUAGE_CODE = "fa-ir"
TIME_ZONE = "Asia/Tehran"
USE_I18N = True
USE_TZ = True

# ============================================
# فایل‌های استاتیک
# ============================================
STATIC_URL = "/static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STORAGES = {
    "staticfiles": {
        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
    },
}

# ============================================
# Landing Page
# ============================================
WHITENOISE_ROOT = BASE_DIR / "landing"
WHITENOISE_INDEX_FILE = True

# ============================================
# فایل‌های رسانه
# ============================================
MEDIA_URL = "/media/"
MEDIA_ROOT = BASE_DIR / "media"

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# ============================================
# CORS
# ============================================
CORS_ALLOWED_ORIGINS = config("CORS_ALLOWED_ORIGINS", default="", cast=Csv())
CORS_ALLOW_ALL_ORIGINS = config("CORS_ALLOW_ALL_ORIGINS", default=False, cast=bool)
CSRF_TRUSTED_ORIGINS = config("CSRF_TRUSTED_ORIGINS", default="", cast=Csv())

# ============================================
# Django REST Framework
# ============================================
REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": (
        "rest_framework_simplejwt.authentication.JWTAuthentication",
    ),
    "DEFAULT_PERMISSION_CLASSES": ("rest_framework.permissions.IsAuthenticated",),
    "DEFAULT_THROTTLE_CLASSES": [
        "rest_framework.throttling.ScopedRateThrottle",
    ],
    "DEFAULT_THROTTLE_RATES": {
        "otp_send": "5/hour",
        "otp_verify": "10/hour",
        "backup": "30/hour",
        "messaging_send": "30/hour",
        "billing_write": "30/hour",
    },
}

# ============================================
# Simple JWT
# ============================================
SIMPLE_JWT = {
    "ACCESS_TOKEN_LIFETIME": timedelta(days=config("JWT_ACCESS_LIFETIME_DAYS", default=1, cast=int)),
    "REFRESH_TOKEN_LIFETIME": timedelta(days=config("JWT_REFRESH_LIFETIME_DAYS", default=30, cast=int)),
    "ROTATE_REFRESH_TOKENS": True,
    "BLACKLIST_AFTER_ROTATION": True,
    "USER_ID_FIELD": "id",
    "USER_ID_CLAIM": "user_id",
}

# ============================================
# ✅ تنظیمات پیامک (فقط OTP با کاوه‌نگار)
# ============================================
KAVENEGAR_API_KEY = config("KAVENEGAR_API_KEY", default="")
SMS_PATTERN_NAME = config("SMS_PATTERN_NAME", default="shopshipotp")

# برای سازگاری با کدهای قدیمی (استفاده نمی‌شود)
SMS_TOKEN_URL = config("SMS_TOKEN_URL", default="")

# ============================================
# تنظیمات کانال‌های پیام‌رسان (در صورت نیاز)
# ============================================
KAVENEGAR_SENDER_LINE = config("KAVENEGAR_SENDER_LINE", default="")
WHATSAPP_ACCESS_TOKEN = config("WHATSAPP_ACCESS_TOKEN", default="")
WHATSAPP_PHONE_NUMBER_ID = config("WHATSAPP_PHONE_NUMBER_ID", default="")
WHATSAPP_TEMPLATE_NAME = config("WHATSAPP_TEMPLATE_NAME", default="")
TELEGRAM_BOT_TOKEN = config("TELEGRAM_BOT_TOKEN", default="")
BALE_BOT_TOKEN = config("BALE_BOT_TOKEN", default="")
EITAA_BOT_TOKEN = config("EITAA_BOT_TOKEN", default="")

# ============================================
# لاگینگ
# ============================================
LOGGING = {
    "version": 1,
    "disable_existing_loggers": False,
    "handlers": {
        "console": {
            "class": "logging.StreamHandler",
        },
    },
    "loggers": {
        "apps.account": {
            "handlers": ["console"],
            "level": "DEBUG",
            "propagate": True,
        },
        "django": {
            "handlers": ["console"],
            "level": "INFO",
            "propagate": True,
        },
    },
    "root": {
        "handlers": ["console"],
        "level": "INFO",
    },
}