import os
from datetime import timedelta

class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess'
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:Asdf123!@localhost/system'
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    
    # JWT 配置
    JWT_SECRET_KEY = 'your-secret-key'  # 在生产环境中使用更安全的密钥
    JWT_ACCESS_TOKEN_EXPIRES = timedelta(hours=1)
    JWT_REFRESH_TOKEN_EXPIRES = timedelta(days=30)