crmbackend/digihoxbackend/settings.py

import os
from pathlib import Path
from dotenv import load_dotenv

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

load_dotenv(BASE_DIR / '.env')

SECRET_KEY = os.getenv('SECRET_KEY', 'django-insecure-key')
DEBUG = os.getenv('DEBUG', 'True') == 'True'
ALLOWED_HOSTS = ['*']

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    
    'rest_framework',
    'corsheaders',
    
    'crm',
    'seller_models',
    'customer_models',
]

MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.security.SecurityMiddleware',
    '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 = 'digihoxbackend.urls'

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',
            ],
        },
    },
]

WSGI_APPLICATION = 'digihoxbackend.wsgi.application'

# Fallback to SQLite if PG databases are not fully configured or raise errors during checks
USE_SQLITE = os.getenv('USE_SQLITE', 'True') == 'True'

if USE_SQLITE:
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'db.sqlite3',
        },
        'seller_db': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'seller_db.sqlite3',
        },
        'product_db': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'product_db.sqlite3',
        },
        'customer_db': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'customer_db.sqlite3',
        }
    }
else:
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': os.getenv('CRM_DB_NAME', 'digihox_crm'),
            'USER': os.getenv('CRM_DB_USER', 'postgres'),
            'PASSWORD': os.getenv('CRM_DB_PASSWORD', 'postgres'),
            'HOST': os.getenv('CRM_DB_HOST', '127.0.0.1'),
            'PORT': os.getenv('CRM_DB_PORT', '5432'),
        },
        'seller_db': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': os.getenv('SELLER_DB_NAME', 'seller_central'),
            'USER': os.getenv('SELLER_DB_USER', 'postgres'),
            'PASSWORD': os.getenv('SELLER_DB_PASSWORD', 'postgres'),
            'HOST': os.getenv('SELLER_DB_HOST', '127.0.0.1'),
            'PORT': os.getenv('SELLER_DB_PORT', '5432'),
        },
        'product_db': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': os.getenv('PRODUCT_DB_NAME', 'productprofile'),
            'USER': os.getenv('PRODUCT_DB_USER', 'postgres'),
            'PASSWORD': os.getenv('PRODUCT_DB_PASSWORD', 'postgres'),
            'HOST': os.getenv('PRODUCT_DB_HOST', '127.0.0.1'),
            'PORT': os.getenv('PRODUCT_DB_PORT', '5432'),
        },
        'customer_db': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': os.getenv('CUSTOMER_DB_NAME', 'customerwebsite'),
            'USER': os.getenv('CUSTOMER_DB_USER', 'postgres'),
            'PASSWORD': os.getenv('CUSTOMER_DB_PASSWORD', 'postgres'),
            'HOST': os.getenv('CUSTOMER_DB_HOST', '127.0.0.1'),
            'PORT': os.getenv('CUSTOMER_DB_PORT', '5432'),
        }
    }

DATABASE_ROUTERS = ['digihoxbackend.db_router.CRMDatabaseRouter']

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

STATIC_URL = 'static/'

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
}

CORS_ALLOW_ALL_ORIGINS = True  # Admin WireGuard VPN only; safe for development