"""
Django settings for hotelfinder project.

Generated by 'django-admin startproject' using Django 5.2.7.

For more information on this file, see
https://docs.djangoproject.com/en/5.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/5.2/ref/settings/
"""

from pathlib import Path

import os
from dotenv import load_dotenv


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

load_dotenv(BASE_DIR / '.env', override=True)


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY', 'django-insecure-=a)d!1*46#4o9gw*#v0n^-@998#xjsdn_)1dhuy*%8=0wq4e*r')

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.environ.get('DEBUG', 'True') == 'True'

ALLOWED_HOSTS = os.environ.get('DJANGO_ALLOWED_HOSTS', 'localhost,127.0.0.1').split(',')


# Application definition

INSTALLED_APPS = [
    'daphne',
    'users',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'corsheaders',
    'rest_framework',
    'django_filters',
    'home',
    'hotel',
    'restaurant',
    'drf_spectacular',
    'rest_framework_simplejwt',
    'payments',
    'channels',
    'whatsapp',
]

AUTH_USER_MODEL = "users.User"


MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    '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 = 'hotelfinder.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 = 'hotelfinder.wsgi.application'
ASGI_APPLICATION = 'hotelfinder.asgi.application'

CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels.layers.InMemoryChannelLayer',
    },
}


# Database
# https://docs.djangoproject.com/en/5.2/ref/settings/#databases

db_engine = os.environ.get('DB_ENGINE', 'django.db.backends.sqlite3')
db_name = os.environ.get('DB_NAME', 'hfdb')
if 'sqlite3' in db_engine and not os.path.isabs(db_name):
    db_name = str(BASE_DIR / db_name)

DATABASES = {
    'default': {
        'ENGINE': db_engine,
        'NAME': db_name,
        'USER': os.environ.get('DB_USER', 'root'),
        'PASSWORD': os.environ.get('DB_PASSWORD', ''),
        'HOST': os.environ.get('DB_HOST', 'localhost'),
        'PORT': os.environ.get('DB_PORT', '3306'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators

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
# https://docs.djangoproject.com/en/5.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'Asia/Kolkata'

USE_I18N = True

USE_TZ = True

MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR / 'media'

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.2/howto/static-files/

STATIC_URL = 'static/'
STATIC_ROOT = BASE_DIR / 'staticfiles'

STORAGES = {
    "default": {
        "BACKEND": "django.core.files.storage.FileSystemStorage",
    },
    "staticfiles": {
        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
    },
}

# Default primary key field type
# https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

CORS_ALLOW_ALL_ORIGINS = True

csrf_origins_env = os.environ.get('CSRF_TRUSTED_ORIGINS')
if csrf_origins_env:
    CSRF_TRUSTED_ORIGINS = [origin.strip() for origin in csrf_origins_env.split(',') if origin.strip()]
else:
    CSRF_TRUSTED_ORIGINS = [
        "http://localhost:3000",
        "http://localhost:5173",
        "https://rahokhao.vaiditech.com",
    ]

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'users.authentication.SessionJWTAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticated',
    ],
    'DEFAULT_SCHEMA_CLASS': 'drf_spectacular.openapi.AutoSchema',
}

from datetime import timedelta

# Set JWT lifetime to a very large value so that the actual timeout
# logic is dictated entirely by the SessionConfiguration model (configured in /admin/sessions).
SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(days=3650),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=3650),
    'ROTATE_REFRESH_TOKENS': False,
    'BLACKLIST_AFTER_ROTATION': False,
}

SPECTACULAR_SETTINGS = {
    'TITLE': 'Hotel Finder API',
    'DESCRIPTION': 'API for finding hotels and restaurants',
    'VERSION': '1.0.0',
    'SERVE_INCLUDE_SCHEMA': False,
}


# Celery Configuration
CELERY_BROKER_URL = os.environ.get('CELERY_BROKER_URL', 'redis://localhost:6379/0')
CELERY_RESULT_BACKEND = os.environ.get('CELERY_RESULT_BACKEND', 'redis://localhost:6379/1')
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TASK_SERIALIZER = 'json'
CELERY_TASK_ALWAYS_EAGER = True

from celery.schedules import crontab  # noqa: E402 — placed after os/Path imports above

CELERY_BEAT_SCHEDULE = {
    'expire-loyalty-coins-hourly': {
        'task': 'restaurant.tasks.expire_loyalty_coins',
        'schedule': 3600,
    },
    'expire-old-subscriptions-daily': {
        'task': 'restaurant.tasks.expire_old_subscriptions',
        'schedule': 86400,
    },
    'reset-khata-lifelines-monthly': {
        'task': 'restaurant.tasks.reset_khata_lifelines',
        'schedule': crontab(day_of_month=1, hour=0, minute=0),
    },
    'check-overdue-khata-daily': {
        'task': 'restaurant.tasks.check_overdue_khata',
        'schedule': 86400,
    },
    'coin-expiry-warnings-6h': {
        'task': 'restaurant.tasks.send_coin_expiry_warnings',
        'schedule': 21600,
    },
    'loyalty-daily-summary': {
        'task': 'restaurant.tasks.loyalty_daily_summary',
        'schedule': crontab(hour=23, minute=0),
    },
}

# Cache Configuration (Redis — used by WhatsApp sessions, Celery result backend, etc.)
CACHES = {
    'default': {
        'BACKEND': 'django_redis.cache.RedisCache',
        'LOCATION': os.environ.get('REDIS_CACHE_URL', 'redis://127.0.0.1:6379/2'),
        'OPTIONS': {
            'CLIENT_CLASS': 'django_redis.client.DefaultClient',
        },
        'TIMEOUT': 1800,  # 30 minutes default
    }
}

WHATSAPP_PROVIDER = os.environ.get('WHATSAPP_PROVIDER', '')
WHATSAPP_API_URL = os.environ.get('WHATSAPP_API_URL', '')
WHATSAPP_API_KEY = os.environ.get('WHATSAPP_API_KEY', '')
WHATSAPP_FROM_NUMBER = os.environ.get('WHATSAPP_FROM_NUMBER', '')

META_PHONE_NUMBER_ID = os.environ.get('META_PHONE_NUMBER_ID', '')
META_ACCESS_TOKEN = os.environ.get('META_ACCESS_TOKEN', '')
META_LANGUAGE_CODE = os.environ.get('META_LANGUAGE_CODE', 'en')
META_WEBHOOK_VERIFY_TOKEN = os.environ.get('META_WEBHOOK_VERIFY_TOKEN', '')

TWILIO_ACCOUNT_SID = os.environ.get('TWILIO_ACCOUNT_SID', '')
TWILIO_AUTH_TOKEN = os.environ.get('TWILIO_AUTH_TOKEN', '')
TWILIO_FROM_NUMBER = os.environ.get('TWILIO_FROM_NUMBER', '')

GUPSHUP_API_KEY = os.environ.get('GUPSHUP_API_KEY', '')
GUPSHUP_FROM_NUMBER = os.environ.get('GUPSHUP_FROM_NUMBER', '')
GUPSHUP_APP_NAME = os.environ.get('GUPSHUP_APP_NAME', '')

INTERAKT_SECRET_KEY = os.environ.get('INTERAKT_SECRET_KEY', '')
INTERAKT_WEBHOOK_SECRET = os.environ.get('INTERAKT_WEBHOOK_SECRET', '')
INTERAKT_TRACK_KEY = os.environ.get('INTERAKT_TRACK_KEY', INTERAKT_SECRET_KEY)

# PMS Integration Configuration
PMS_API_URL = os.environ.get('PMS_API_URL')
PMS_API_TOKEN = os.environ.get('PMS_API_TOKEN')
PMS_VERIFY_SSL = os.environ.get('PMS_VERIFY_SSL', 'True') == 'True'
PMS_REQUEST_TIMEOUT = int(os.environ.get('PMS_REQUEST_TIMEOUT', 10))
PMS_MAX_RETRIES = int(os.environ.get('PMS_MAX_RETRIES', 3))
PMS_RETRY_BACKOFF_FACTOR = float(os.environ.get('PMS_RETRY_BACKOFF_FACTOR', 0.5))

# Aahar Integration Configuration
AAHAR_API_URL = os.environ.get('AAHAR_API_URL', 'https://aahar.vaiditech.in/apis/backend/web')
AAHAR_API_KEY = os.environ.get('AAHAR_API_KEY', '')
AAHAR_API_PASSWORD = os.environ.get('AAHAR_API_PASSWORD', '')

# Note: SIMPLE_JWT is configured above (line ~211). Do not duplicate.

# Email / SMTP Configuration
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_HOST_USER = os.environ.get('EMAIL_HOST_USER', '')
EMAIL_HOST_PASSWORD = os.environ.get('EMAIL_HOST_PASSWORD', '')
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER

# ---------------------------------------------------------------------------
# WhatsApp Logging — route all WA-related log calls to wlogs/whatsapp_log.txt
# ---------------------------------------------------------------------------

# Ensure the wlogs/ directory exists at startup (safe to call multiple times)
_WLOGS_DIR = BASE_DIR / 'wlogs'
os.makedirs(_WLOGS_DIR, exist_ok=True)

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,

    # ── Formatters ──────────────────────────────────────────────────────────
    'formatters': {
        'whatsapp': {
            'format': '{asctime} [{levelname:<7}] {name:<40} | {message}',
            'style': '{',
            'datefmt': '%Y-%m-%d %H:%M:%S',
        },
        'console_verbose': {
            'format': '{asctime} [{levelname}] {name}: {message}',
            'style': '{',
            'datefmt': '%H:%M:%S',
        },
    },

    # ── Handlers ─────────────────────────────────────────────────────────────
    'handlers': {
        # Existing console output (keeps Django's default behaviour)
        'console': {
            'class': 'logging.StreamHandler',
            'formatter': 'console_verbose',
        },
        # Dedicated rotating file for every WhatsApp log entry
        'whatsapp_file': {
            'class': 'logging.handlers.RotatingFileHandler',
            'filename': str(_WLOGS_DIR / 'whatsapp_log.txt'),
            'maxBytes': 10 * 1024 * 1024,   # 10 MB per file
            'backupCount': 5,               # keep whatsapp_log.txt.1 … .5
            'formatter': 'whatsapp',
            'encoding': 'utf-8',
        },
    },

    # ── Loggers ──────────────────────────────────────────────────────────────
    'loggers': {
        # ── restaurant/ WhatsApp modules ─────────────────────────────────────
        'restaurant.whatsapp_service': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        'restaurant.whatsapp_webhook': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        'restaurant.whatsapp_views': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        'restaurant.whatsapp_session': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        # ── whatsapp/ app ────────────────────────────────────────────────────
        'whatsapp.views': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        'whatsapp.bot': {
            'handlers': ['whatsapp_file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
        # ── hotel/tasks & signals (WA bill notifications) ────────────────────
        # propagate=True so non-WA log lines still reach the root handler/console.
        'hotel.tasks': {
            'handlers': ['whatsapp_file'],
            'level': 'DEBUG',
            'propagate': True,
        },
        'hotel.signals': {
            'handlers': ['whatsapp_file'],
            'level': 'DEBUG',
            'propagate': True,
        },
        # ── restaurant/tasks & signals (WA bill + status update) ─────────────
        'restaurant.tasks': {
            'handlers': ['whatsapp_file'],
            'level': 'DEBUG',
            'propagate': True,
        },
        'restaurant.signals': {
            'handlers': ['whatsapp_file'],
            'level': 'DEBUG',
            'propagate': True,
        },
    },

    # ── Root logger (fallback for everything else) ────────────────────────────
    'root': {
        'handlers': ['console'],
        'level': 'INFO',
    },
}