"""对话记录模型。"""
from sqlalchemy import Column, Integer, String, Text, TIMESTAMP, func
from insurance.db.compat import db


class ChatRecord(db.Model):
    """对话记录表。"""
    __tablename__ = "insurance_chat_records"

    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(String(64), nullable=False, comment="用户 ID")
    session_id = Column(String(128), nullable=False, comment="会话 ID")
    role = Column(String(16), nullable=False, comment="角色: user/assistant")
    content = Column(Text, nullable=False, comment="消息内容")
    message_id = Column(String(128), comment="BaoDan 消息 ID")
    model_id = Column(String(100), comment="模型 ID")
    message_tokens = Column(Integer, default=0, comment="用户输入 token 数")
    answer_tokens = Column(Integer, default=0, comment="助手回复 token 数")
    rating = Column(String(16), comment="评分: helpful/not_helpful")
    correction = Column(Text, comment="用户纠错内容")
    created_at = Column(TIMESTAMP, server_default=func.now())

    def to_dict(self):
        return {
            "id": self.id,
            "user_id": self.user_id,
            "session_id": self.session_id,
            "role": self.role,
            "content": self.content,
            "message_id": self.message_id,
            "model_id": self.model_id,
            "message_tokens": self.message_tokens or 0,
            "answer_tokens": self.answer_tokens or 0,
            "rating": self.rating,
            "correction": self.correction,
            "created_at": str(self.created_at) if self.created_at else None,
        }