from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    """应用配置类"""
    # 应用配置
    app_name: str = "Project Management API"
    debug: bool = True
    port: int = 8000
    
    # 数据库配置
    database_url: str
    
    # JWT配置
    secret_key: str
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 30
    
    # 日志配置
    log_level: str = "info"
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"
        case_sensitive = False


# 创建配置实例
settings = Settings()