"""
Django settings for RTC_DEMO project.
"""
import os
from pathlib import Path
from datetime import timedelta

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

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY', 'django-insecure-dev-key-change-in-production')

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.environ.get('DJANGO_DEBUG', 'True').lower() == 'true'

ALLOWED_HOSTS = os.environ.get('DJANGO_ALLOWED_HOSTS', '*').split(',')

# Application definition
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Third party
    'rest_framework',
    'rest_framework_simplejwt',
    'corsheaders',
    'drf_spectacular',
    # Local apps
    'apps.users',
    'apps.spirits',
    'apps.devices',
    'apps.inventory',
    'apps.admins',
]

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 = 'config.urls'

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

# Database - MySQL via PyMySQL
import pymysql
pymysql.version_info = (2, 2, 1, 'final', 0)  # Django 6.x requires mysqlclient >= 2.2.1
pymysql.install_as_MySQLdb()

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': os.environ.get('DB_NAME', 'rtc'),
        'USER': os.environ.get('DB_USER', 'rtc'),
        'PASSWORD': os.environ.get('DB_PASSWORD', 'JogNQdtrd3WY8CBCAiYfYEGx'),
        'HOST': os.environ.get('DB_HOST', 'rm-7xv1uaw910558p1788o.mysql.rds.aliyuncs.com'),
        'PORT': os.environ.get('DB_PORT', '3306'),
        'OPTIONS': {
            'charset': 'utf8mb4',
        },
        'TEST': {
            'NAME': 'rtc',  # 使用现有数据库进行测试
        },
    }
}

# Redis Cache
REDIS_PASSWORD = os.environ.get('REDIS_PASSWORD', 'vAhRnAA6VMco')
REDIS_URL = os.environ.get('REDIS_URL', f'redis://:{REDIS_PASSWORD}@r-7xvat0vez5clwbzk5vpd.redis.rds.aliyuncs.com:6379/8')
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.redis.RedisCache',
        'LOCATION': REDIS_URL,
    }
}

# 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'},
]

# Custom User Model
AUTH_USER_MODEL = 'users.User'

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

# Static files
STATIC_URL = 'static/'

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

# CORS Settings
CORS_ALLOW_ALL_ORIGINS = DEBUG
CORS_ALLOWED_ORIGINS = os.environ.get('CORS_ALLOWED_ORIGINS', '').split(',') if not DEBUG else []

# REST Framework
REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticated',
    ],
    'DEFAULT_RENDERER_CLASSES': [
        'rest_framework.renderers.JSONRenderer',
    ],
    'DEFAULT_SCHEMA_CLASS': 'drf_spectacular.openapi.AutoSchema',
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
    'EXCEPTION_HANDLER': 'utils.exceptions.custom_exception_handler',
}

# JWT Settings
SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(days=7),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=30),
    'ROTATE_REFRESH_TOKENS': True,
    'ALGORITHM': 'HS256',
    'AUTH_HEADER_TYPES': ('Bearer',),
}

# Aliyun OSS Settings
ALIYUN_OSS = {
    'ACCESS_KEY_ID': os.environ.get('OSS_ACCESS_KEY_ID', 'LTAI5tBGAkR2rra2prTAX9yc'),
    'ACCESS_KEY_SECRET': os.environ.get('OSS_ACCESS_KEY_SECRET', 'U1z3d0p5saPRD5sCxVooJYSjxSAmKB'),
    'ENDPOINT': os.environ.get('OSS_ENDPOINT', 'oss-cn-beijing.aliyuncs.com'),
    'BUCKET_NAME': os.environ.get('OSS_BUCKET_NAME', 'qy-rtc'),
    'CUSTOM_DOMAIN': os.environ.get('OSS_CUSTOM_DOMAIN', ''),
}

# Swagger/OpenAPI Settings
SPECTACULAR_SETTINGS = {
    'TITLE': 'RTC_DEMO API',
    'DESCRIPTION': 'RTC物联网设备管理平台API文档',
    'VERSION': '1.0.0',
    'SERVE_INCLUDE_SCHEMA': False,
    'COMPONENT_SPLIT_REQUEST': True,
    'SWAGGER_UI_SETTINGS': {
        'persistAuthorization': True,
    },
}

# Logging
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'verbose': {
            'format': '{levelname} {asctime} {module} {message}',
            'style': '{',
        },
    },
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
            'formatter': 'verbose',
        },
    },
    'root': {
        'handlers': ['console'],
        'level': 'INFO',
    },
}