config.py

import os

class Config:
    """应用配置类"""
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'your-secret-key-here'
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or 'sqlite:///todolist.db'
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    
    # 密码加密配置
    BCRYPT_LOG_ROUNDS = 12
    
    # API配置
    JSON_AS_ASCII = False
    JSONIFY_PRETTYPRINT_REGULAR = True
    
    # API限流配置
    RATELIMIT_ENABLED = os.environ.get('RATELIMIT_ENABLED', 'true').lower() == 'true'
    RATELIMIT_STORAGE_URL = os.environ.get('RATELIMIT_STORAGE_URL', 'memory://')
    RATELIMIT_DEFAULT = os.environ.get('RATELIMIT_DEFAULT', '200 per hour')
    RATELIMIT_STRATEGY = 'fixed-window'
    
    # 文件上传配置
    MAX_CONTENT_LENGTH = 100 * 1024 * 1024  # 100MB
    UPLOAD_FOLDER = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'uploads')
    
    # 日志配置
    LOG_LEVEL = os.environ.get('LOG_LEVEL', 'INFO')
    LOG_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'logs')

class DevelopmentConfig(Config):
    """开发环境配置"""
    DEBUG = True
    SQLALCHEMY_ECHO = True
    LOG_LEVEL = 'DEBUG'

class ProductionConfig(Config):
    """生产环境配置"""
    DEBUG = False
    SQLALCHEMY_ECHO = False
    LOG_LEVEL = 'INFO'
    # 生产环境应该使用更安全的密钥
    SECRET_KEY = os.environ.get('SECRET_KEY') or os.urandom(32)

config = {
    'development': DevelopmentConfig,
    'production': ProductionConfig,
    'default': DevelopmentConfig
}