import os
from pathlib import Path

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

# Load .env file
env_file = BASE_DIR / '.env'
if env_file.exists():
    with open(env_file, 'r', encoding='utf-8') as f:
        for line in f:
            line = line.strip()
            if line and not line.startswith('#'):
                key, val = line.split('=', 1)
                os.environ[key.strip()] = val.strip().strip("'").strip('"')

SECRET_KEY = os.environ.get('SECRET_KEY', 'django-insecure-opc-community-platform')
DEBUG = os.environ.get('DEBUG', 'True') == 'True'
ALLOWED_HOSTS = os.environ.get('ALLOWED_HOSTS', '*').split(',')

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'corsheaders',
    'users',
    'tasks',
    'reservations',
    'opc_cert',
    'system',
]

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 = 'core.urls'
CORS_ALLOW_ALL_ORIGINS = os.environ.get('CORS_ALLOW_ALL_ORIGINS', 'True') == 'True'

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 = 'core.wsgi.application'

DATABASES = {
    'default': {
        'ENGINE': os.environ.get('DB_ENGINE', 'django.db.backends.postgresql'),
        'NAME': os.environ.get('DB_NAME', 'opc_db'),
        'USER': os.environ.get('DB_USER', 'opc_user'),
        'PASSWORD': os.environ.get('DB_PASSWORD', 'opc_password'),
        'HOST': os.environ.get('DB_HOST', 'localhost'),
        'PORT': os.environ.get('DB_PORT', '5432'),
    }
}

AUTH_PASSWORD_VALIDATORS = []

LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'
USE_I18N = True
USE_TZ = True

STATIC_URL = 'static/'
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

AUTH_USER_MODEL = 'users.User'

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
}

# MinIO Configuration
MINIO_ENDPOINT = os.environ.get('MINIO_ENDPOINT', 'localhost:9000')
MINIO_ACCESS_KEY = os.environ.get('MINIO_ACCESS_KEY', 'minioadmin')
MINIO_SECRET_KEY = os.environ.get('MINIO_SECRET_KEY', 'minioadmin')
MINIO_BUCKET_NAME = os.environ.get('MINIO_BUCKET_NAME', 'opc-assets')
MINIO_SECURE = os.environ.get('MINIO_SECURE', 'False') == 'True'
MINIO_PUBLIC_URL = os.environ.get('MINIO_PUBLIC_URL', 'http://127.0.0.1:9000')