"""
系统配置模型
存储可通过后台管理的系统配置项
"""
from sqlalchemy import Column, BigInteger, String, Text, DateTime
from sqlalchemy.sql import func

from ..database import Base


class SystemConfig(Base):
    """系统配置表"""
    __tablename__ = "system_configs"

    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="配置ID")
    config_key = Column(String(100), unique=True, nullable=False, comment="配置键")
    config_value = Column(Text, nullable=True, comment="配置值")
    description = Column(String(255), nullable=True, comment="配置说明")
    config_group = Column(String(50), nullable=False, default="general", comment="配置分组: ai/general")
    is_secret = Column(String(1), nullable=False, default="N", comment="是否敏感信息(Y/N)")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")

    def __repr__(self):
        return f"<SystemConfig(key='{self.config_key}')>"