"""
会话历史记录模型（与 sessions 表结构一致，用于清理前落历史）
"""
from sqlalchemy import Column, Integer, String, DateTime, SmallInteger, Text
from app.database import Base


class SessionHis(Base):
    """用户会话表历史记录"""
    __tablename__ = "sessions_his"

    id = Column(Integer, primary_key=True, autoincrement=True, comment="主键ID")
    session_id = Column(String(64), nullable=False, index=True, comment="会话ID")
    user_id = Column(Integer, nullable=False, index=True, comment="用户ID")
    machine_code = Column(String(100), nullable=True, comment="机器码")
    ip_address = Column(String(45), nullable=True, comment="IP地址")
    user_agent = Column(Text, nullable=True, comment="用户代理")
    is_active = Column(SmallInteger, default=1, comment="是否激活：0-否，1-是")
    expires_at = Column(DateTime, nullable=False, comment="过期时间")
    created_at = Column(DateTime, nullable=True, comment="创建时间")
    updated_at = Column(DateTime, nullable=True, comment="更新时间")
    last_activity = Column(DateTime, nullable=True, comment="最后活动时间")