"""
Django settings for config project.

Generated by 'django-admin startproject' using Django 5.2.1.

For more information on this file, see
https://docs.djangoproject.com/en/5.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/5.2/ref/settings/
"""

import os
from pathlib import Path
from datetime import timedelta # 确保导入timedelta

# 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/5.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = "django-insecure-12o%i9mzoyn8ua+j#l!8fed0-4d&y$x3%vtk00y82@97f9702+"

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

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    # Third-party apps
    'rest_framework',
    'rest_framework_simplejwt',
    'corsheaders',  # <<<< 1. 添加 corsheaders 到 INSTALLED_APPS

    # Your apps
    # 推荐使用完整的AppConfig路径
    'accounts.apps.AccountsConfig', # 假设你的 accounts/apps.py 中有 AccountsConfig
    'groups.apps.GroupsConfig',   # 假设你的 groups/apps.py 中有 GroupsConfig
]

MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',  # <<<< 2. 添加 CorsMiddleware, 确保在 CommonMiddleware 之前
    '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": [], # 如果你有项目级的模板文件夹，可以添加到这里
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.debug", # 之前这里没有 debug，加上比较好
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
            ],
        },
    },
]

WSGI_APPLICATION = "config.wsgi.application"


# Database
# https://docs.djangoproject.com/en/5.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'tongqu_v2_db',
        'USER': 'postgres',
        'PASSWORD': '20030316', # 请确保这是你正确的PostgreSQL密码
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

# Password validation
# https://docs.djangoproject.com/en/5.2/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/5.2/topics/i18n/

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


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.2/howto/static-files/

STATIC_URL = 'static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'), # 项目级static文件夹 (你需要在 BASE_DIR 下创建这个文件夹)
]
# `collectstatic` 命令收集静态文件到这个目录，主要用于生产环境
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles_collected')


# Media files (User uploaded content)
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media') # (你需要在 BASE_DIR 下创建这个文件夹)


# Default primary key field type
# https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# Custom User Model
AUTH_USER_MODEL = 'accounts.CustomUser'


# Django REST framework settings
REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    )
    # 其他DRF设置...
}

# Simple JWT settings
SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(minutes=60),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=1),
    'UPDATE_LAST_LOGIN': True,
    'AUTH_HEADER_TYPES': ('Bearer',),
    'USER_ID_FIELD': 'id',
    'USER_ID_CLAIM': 'user_id',
    'SIGNING_KEY': SECRET_KEY, # 使用Django的SECRET_KEY
    # 其他SimpleJWT设置...
}

# CORS (Cross-Origin Resource Sharing) settings <<<< 3. 添加CORS配置块
CORS_ALLOWED_ORIGINS = [
    "http://localhost:5173",  # 你Vite前端开发服务器的地址
    "http://127.0.0.1:5173", # 有时也需要加上这个
    # "https://yourfrontenddomain.com", # 生产环境前端域名
]

# 或者，仅在绝对的开发环境中，如果你想允许所有来源 (非常不推荐用于生产)
# CORS_ALLOW_ALL_ORIGINS = True # 如果使用这个，上面的 CORS_ALLOWED_ORIGINS 会被忽略

# 如果前端需要发送凭据 (如cookies或HTTP认证头) 进行跨域请求
# 并且你的axios配置了 withCredentials: true
# CORS_ALLOW_CREDENTIALS = True

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

CORS_ALLOW_HEADERS = [
    "accept",
    "accept-encoding",
    "authorization", # 允许 Authorization 头
    "content-type",
    "dnt",
    "origin",
    "user-agent",
    "x-csrftoken",
    "x-requested-with",
]