"""
Django settings for simulationserver project.
"""

from pathlib import Path
import os
import sys
from celery import Celery

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

# Add django-polls to path for the existing app
sys.path.insert(0, str(Path.home() / 'django-polls'))

# Quick-start development settings
SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY', 'django-insecure-simulationserver-key-change-in-production')
DEBUG = os.environ.get('DEBUG', 'True').lower() in ('true', '1', 'yes')
ALLOWED_HOSTS = ['*']

# CSRF settings for HuggingFace Spaces
CSRF_TRUSTED_ORIGINS = [
    'https://*.hf.space',
    'https://*.huggingface.co',
]

# Application definition
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'simulations',
]

MIDDLEWARE = [
    '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 = 'simulationserver.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [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 = 'simulationserver.wsgi.application'

# Database
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

# HuggingFace Spaces detection
HF_SPACES = os.environ.get('HF_SPACES', '').lower() in ('true', '1', 'yes')

# Celery Configuration - Disabled on HF Spaces
if not HF_SPACES:
    CELERY_BROKER_URL = os.environ.get('CELERY_BROKER_URL', 'redis://localhost:6379/0')
    CELERY_RESULT_BACKEND = os.environ.get('CELERY_RESULT_BACKEND', 'redis://localhost:6379/0')
    CELERY_ACCEPT_CONTENT = ['json']
    CELERY_TASK_SERIALIZER = 'json'
    CELERY_RESULT_SERIALIZER = ['json']
    CELERY_TIMEZONE = 'UTC'
else:
    CELERY_BROKER_URL = 'disabled'
    CELERY_RESULT_BACKEND = 'disabled'

# REST Framework
REST_FRAMEWORK = {
    'DEFAULT_RENDERER_CLASSES': [
        'rest_framework.renderers.JSONRenderer',
    ],
    'DEFAULT_PARSER_CLASSES': [
        'rest_framework.parsers.JSONParser',
        'rest_framework.parsers.MultiPartParser',
    ],
}

# Password validation
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
LANGUAGE_CODE = 'fr'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_TZ = True

# Static files
STATIC_URL = 'static/'

# Media files
MEDIA_URL = 'media/'
MEDIA_ROOT = BASE_DIR / 'media'

# Default primary key field type
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'