settings.py

"""
Django settings for conduit_backend project.

Generated by 'django-admin startproject' using Django 4.2.4.

For more information on this file, see
https://docs.djangoproject.com/en/4.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.2/ref/settings/
"""

from pathlib import Path
import os

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


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-*7gc0m5jzyi)0mx(@s_nep+8^!!b&w0=(sn845b!5#s9!go#lk'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = [
    'api.conduits.link', 
    'conduits-link-6109ece64156.herokuapp.com',

    # For testing.
    "localhost",  
]

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Our applications
    'user_accounts.apps.UserAccountsConfig',
    # Django Rest Framework
    'rest_framework',
    # CORS - allows frontend and backend to communicate
    'corsheaders',
]

MIDDLEWARE = [
    # CORS - allows frontend and backend to communicate
    '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 = 'conduit_backend.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.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'conduit_backend.wsgi.application'


# Database - using PostgreSQL. Currently using temporary account details.
# https://docs.djangoproject.com/en/4.2/ref/settings/#databases

# Load operating system environment variables
from dotenv import load_dotenv
import sys
import dj_database_url

load_dotenv()

DATABASE_URL = os.getenv("DATABASE_URL")

DATABASES = {
    'default':  dj_database_url.config(default=DATABASE_URL)
}

# MySQL local database for testing
# DATABASES['default'] = {
#         'ENGINE'  : 'django.db.backends.mysql',
#         'NAME'    : 'conduitdb',
#         'USER'    : 'nw',
#         'PASSWORD': 'JnlezOy`nC411"I}4S`Z',
#         'HOST'    : 'localhost',
#         'PORT'    : '3306',
#         'TEST': {
#             'NAME': 'test_conduitdb',
#         },
#     }

if 'test' in sys.argv:
    DATABASES['default'] = {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': ':memory:',
    }

AUTH_USER_MODEL = 'user_accounts.User'

# Password validation
# https://docs.djangoproject.com/en/4.2/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/4.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'Europe/London'

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.2/howto/static-files/

STATIC_URL = 'static/'
STATIC_ROOT = 'static/'


# Default primary key field type
# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# Redirect to home URL after login (Default redirects to /accounts/profile/)
LOGIN_REDIRECT_URL = '/'

# Testing password reset
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'


# Django Rest Framework settings
REST_FRAMEWORK = {
    # Use Django's standard `django.contrib.auth` permissions,
    # or allow read-only access for unauthenticated users.
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.AllowAny'
    ]
}

# CORS Headers settings

CORS_ALLOWED_ORIGINS = [
    'http://app.conduits.link',
    'https://app.conduits.link',    
    'http://api.conduits.link',
    'https://api.conduits.link',
    # TESTING: Allow local Next.js Conduit frontend URL
    "http://localhost:3000",  
    "http://127.0.0.1:3000",  
]

CORS_ALLOW_METHODS = ["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"]

CORS_ALLOW_HEADERS = [
    "accept",
    "accept-encoding",
    "authorization",
    "content-type",
    "dnt",
    "origin",
    "user-agent",
    "x-csrftoken",
    "x-requested-with",
    "access-control-allow-credentials",
]

# Allow credentials (cookies, authorization headers, etc.) to be included in cross-origin requests
CORS_ALLOW_CREDENTIALS = True

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'verbose': {
            'format': ('%(asctime)s [%(process)d] [%(levelname)s] ' +
                       'pathname=%(pathname)s lineno=%(lineno)s ' +
                       'funcname=%(funcName)s %(message)s'),
            'datefmt': '%Y-%m-%d %H:%M:%S'
        },
        'simple': {
            'format': '%(levelname)s %(message)s'
        }
    },
    'handlers': {
        'null': {
            'level': 'DEBUG',
            'class': 'logging.NullHandler',
        },
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
            'formatter': 'verbose'
        }
    },
    'loggers': {
        'defaultlogger': {
            'handlers': ['console'],
            'level': 'INFO',
        }
    }
}