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

load_dotenv()

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

SECRET_KEY = os.getenv('JWT_SECRET', 'django-insecure-fallback-secret-key')

DEBUG = os.getenv('DEBUG', 'False').lower() == 'true'

ALLOWED_HOSTS = os.getenv('ALLOWED_HOSTS', '*').split(',')

# CORS Configuration
CORS_ALLOWED_ORIGINS = [
    'https://attunehearttherapy.com'
]

CORS_ALLOW_CREDENTIALS = True

CSRF_TRUSTED_ORIGINS = [
    'https://api.attunehearttherapy.com',
    'https://attunehearttherapy.com'
]

INSTALLED_APPS = [
    'jazzmin',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    
    'rest_framework',
    'rest_framework_simplejwt',
    'corsheaders',
    'drf_spectacular',
    
    'users',
    'meetings',
]

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',
]

SITE_NAME = os.getenv('SITE_NAME', 'Attune Heart Therapy')

ROOT_URLCONF = 'booking_system.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            os.path.join(BASE_DIR, 'templates'),
        ],
        '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 = 'booking_system.wsgi.application'

if not DEBUG:
    SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")


if os.getenv('DATABASE_URL'):
    DATABASES = {
        'default': dj_database_url.config(
            default=os.getenv('DATABASE_URL'),
            conn_max_age=600,
            conn_health_checks=True,
        )
    }
else:
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'db.sqlite3',
        }
    }

ENCRYPTION_KEY = os.getenv('ENCRYPTION_KEY')


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',
    },
]


SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(hours=24),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=7),
    'ROTATE_REFRESH_TOKENS': True,
    'BLACKLIST_AFTER_ROTATION': True,
    'SIGNING_KEY': os.getenv('JWT_SECRET', SECRET_KEY),
    'AUTH_HEADER_TYPES': ('Bearer',),
}

STRIPE_PUBLISHABLE_KEY = os.getenv('STRIPE_PUBLISHABLE_KEY')
STRIPE_SECRET_KEY = os.getenv('STRIPE_SECRET_KEY')
STRIPE_WEBHOOK_SECRET = os.getenv('STRIPE_WEBHOOK_SECRET')


JITSI_BASE_URL = os.getenv('JITSI_BASE_URL', 'https://meet.jit.si')


EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = os.getenv('SMTP_HOST', 'smtp.hostinger.com')
EMAIL_PORT = int(os.getenv('SMTP_PORT', 465))
EMAIL_USE_SSL = True 
EMAIL_HOST_USER = os.getenv('SMTP_USERNAME', 'admin@attunehearttherapy.com')
EMAIL_HOST_PASSWORD = os.getenv('SMTP_PASSWORD')
DEFAULT_FROM_EMAIL = os.getenv('SMTP_FROM', 'admin@attunehearttherapy.com')


REST_FRAMEWORK = {
    'DEFAULT_SCHEMA_CLASS': 'drf_spectacular.openapi.AutoSchema',
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
    'DEFAULT_RENDERER_CLASSES': (
        'rest_framework.renderers.JSONRenderer',
    ),
}


SPECTACULAR_SETTINGS = {
    'TITLE': 'Attune Heart Therapy API',
    'DESCRIPTION': 'API for managing appointments, meetings, and user authentication.',
    'VERSION': '1.0.0',
    'SERVE_INCLUDE_SCHEMA': False,
}


AUTH_USER_MODEL = 'users.CustomUser'

AUTHENTICATION_BACKENDS = [
    'users.backends.EmailBackend',
    'django.contrib.auth.backends.ModelBackend',
]

LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_TZ = True


STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'


DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'


CELERY_BROKER_URL = os.getenv('REDIS_URL', 'redis://localhost:6379/0')
CELERY_RESULT_BACKEND = os.getenv('REDIS_URL', 'redis://localhost:6379/0')
CELERY_ACCEPT_CONTENT = ['json']
CELERY_TASK_SERIALIZER = 'json'


LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
    },
    'root': {
        'handlers': ['console'],
        'level': 'INFO',
    },
}