385 lines
12 KiB
Python
385 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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"""
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数据库状态
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"""
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from datetime import datetime, timedelta
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from random import choices
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from typing import Dict, List
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from pydantic import TypeAdapter
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from pydantic_ai import ModelMessage, ModelMessagesTypeAdapter
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from pydantic_ai._uuid import uuid7
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import reflex as rx
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from sqlalchemy import desc
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from sqlmodel import Field, JSON, SQLModel, select, update
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from application.domain_models import Conversation, Dialog, Thought
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class CaptchaRecord(SQLModel, table=True):
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"""
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验证码记录
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邮箱、验证码和失效时间联合作为主键
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"""
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email: str = Field(..., primary_key=True, description="邮箱")
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captcha: str = Field(
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default_factory=lambda: "".join(choices("0123456789", k=6)),
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primary_key=True,
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description="验证码",
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)
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is_valid: bool = Field(
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default=True,
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index=True,
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description="验证码有效：True 表示有效，False 表示无效",
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)
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is_verified: bool = Field(
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default=False,
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index=True,
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description="验证码已核验：True 表示已核验，False 表示未核验",
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)
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expired_at: datetime = Field(
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default_factory=lambda: datetime.now() + timedelta(minutes=30),
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primary_key=True,
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description="失效时间",
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)
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class UserRecord(SQLModel, table=True):
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"""
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用户记录
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"""
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id: str = Field(
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default_factory=lambda: str(uuid7()),
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primary_key=True,
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description="用户唯一标识",
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)
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email: str = Field(..., index=True, description="邮箱")
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class ConversationRecord(SQLModel, table=True):
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"""
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会话记录
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"""
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id: str = Field(
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default_factory=lambda: str(uuid7()),
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primary_key=True,
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description="会话记录唯一标识",
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)
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user_id: str = Field(..., index=True, description="用户唯一标识")
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description: str = Field(..., description="会话描述")
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is_deleted: bool = Field(
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default=False,
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index=True,
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description="会话已删除：True 表示已删除，False 表示未删除",
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)
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created_at: datetime = Field(
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default_factory=datetime.now, description="会话创建时间"
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)
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class ThoughtRecord(SQLModel):
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"""
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思考记录（不创建数据表）
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"""
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id: str = Field(
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default_factory=lambda: str(uuid7()),
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primary_key=True,
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description="思考唯一标识",
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)
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type: str = Field(description="思考类型")
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content: str = Field(default="", description="思考内容")
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class DialogRecord(SQLModel, table=True):
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"""
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对话记录
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"""
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id: str = Field(
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default_factory=lambda: str(uuid7()),
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primary_key=True,
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description="对话唯一标识",
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)
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conversation_id: str = Field(..., index=True, description="会话唯一标识")
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user_prompt: str = Field(..., description="用户提示词")
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thoughts: Dict[int, ThoughtRecord] = Field(
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default_factory=dict, sa_type=JSON, description="思考列表"
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)
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result_output: str = Field(default="", description="结果输出")
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class ResultRecord(SQLModel, table=True):
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"""
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结果记录
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"""
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conversation_id: str = Field(primary_key=True, description="会话唯一标识")
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dialog_id: str = Field(primary_key=True, description="对话唯一标识")
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new_messages: str = Field(description="新增消息")
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def format_at(at: datetime) -> str:
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"""
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格式化日期时间
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:param at: 日期时间
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:return: 格式化后的日期时间字符串
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"""
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match (datetime.now().date() - at.date()).days:
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case 0:
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formatted_at = f"{at.strftime('%H:%M')}"
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case 1:
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formatted_at = f"昨天 {at.strftime('%H:%M')}"
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case _:
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formatted_at = at.strftime("%Y-%m-%d %H:%M")
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return formatted_at
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# 思考领域模型类型适配器
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ThoughtTypeAdapter = TypeAdapter(Dict[int, Thought])
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class DatabaseState(rx.State):
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"""
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数据库状态
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"""
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async def create_captcha_record(self, email: str) -> str:
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"""
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创建验证码记录
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:param email: 邮箱
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:return: 所创建记录的验证码
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"""
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async with rx.asession() as session:
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# 前置操作：将该邮箱有效且未核验的验证码记录设置为无效
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await session.exec(
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update(CaptchaRecord)
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.where(
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CaptchaRecord.email == email, # type: ignore
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CaptchaRecord.is_valid == True, # type: ignore
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CaptchaRecord.is_verified == False, # type: ignore
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)
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.values(is_valid=False)
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)
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await session.flush()
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# 创建记录
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record = CaptchaRecord(
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email=email,
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)
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session.add(record)
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await session.commit()
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await session.refresh(record)
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return record.captcha
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async def verify_captcha(self, email: str, captcha: str) -> bool:
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"""
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核验验证码
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:param email: 邮箱
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:param captcha: 验证码
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:return: 是否核验成功，True 表示核验成功，False 表示核验失败（根据邮箱和验证码未查询到有效且未核验的记录，或失效）
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"""
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async with rx.asession() as session:
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result = await session.exec(
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select(CaptchaRecord).where(
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CaptchaRecord.email == email,
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CaptchaRecord.captcha == captcha,
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CaptchaRecord.is_valid == True,
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CaptchaRecord.is_verified == False,
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CaptchaRecord.expired_at > datetime.now(),
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)
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)
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record = result.first()
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if not record:
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return False
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record.is_verified = True
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await session.commit()
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await session.refresh(record)
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return True
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async def create_user_record(self, email: str) -> str:
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"""
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创建用户记录
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:param email: 邮箱
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:return: 创建用户记录的唯一标识
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"""
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async with rx.asession() as session:
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result = await session.exec(
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select(UserRecord).where(UserRecord.email == email)
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)
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record = result.first()
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# 若记录已存在则返回用户唯一标识，否则创建并返回所创建记录的用户唯一标识
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if record:
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return record.id
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record = UserRecord(email=email)
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session.add(record)
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await session.commit()
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await session.refresh(record)
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return record.id
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async def get_conversations(self, user_id: str) -> Dict[str, Conversation]:
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"""
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获取会话字典
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:param user_id: 用户唯一标识
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:return: 会话字典
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"""
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records: Dict[str, Conversation] = {}
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async with rx.asession() as session:
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result = await session.exec(
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select(ConversationRecord, DialogRecord)
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.outerjoin(DialogRecord, ConversationRecord.id == DialogRecord.conversation_id) # type: ignore
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.where(
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ConversationRecord.user_id == user_id,
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ConversationRecord.is_deleted == False,
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)
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.order_by(ConversationRecord.id, DialogRecord.id)
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)
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for conversation_record, dialog_record in result.all():
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record = records.setdefault(
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conversation_record.id,
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Conversation(
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id=conversation_record.id,
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description=conversation_record.description,
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created_at=format_at(conversation_record.created_at),
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),
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)
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if not dialog_record:
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continue
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record.dialogs.update(
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{
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dialog_record.id: Dialog(
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id=dialog_record.id,
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user_prompt=dialog_record.user_prompt,
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thoughts=ThoughtTypeAdapter.validate_python(
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dialog_record.thoughts
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),
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result_output=dialog_record.result_output,
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)
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}
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)
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return records
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async def create_conversations_record(
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self, user_id: str, description: str = "新会话"
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) -> Dict[str, Conversation]:
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"""
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创建会话记录
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:param user_id: 用户唯一标识
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:param description: 会话描述，默认为"新会话"
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:return: 键为会话唯一标识，值为会话实例的会话字典
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"""
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async with rx.asession() as session:
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record = ConversationRecord(user_id=user_id, description=description)
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session.add(record)
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await session.commit()
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await session.refresh(record)
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return {
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record.id: Conversation(
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id=record.id,
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description=record.description,
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created_at=format_at(record.created_at),
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)
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}
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async def set_conversations_record_deleted(self, conversation_id: str) -> None:
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"""
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设置会话记录为已删除
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:param conversation_id: 指定会话唯一标识
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:return: None
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"""
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async with rx.asession() as session:
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record = await session.get(ConversationRecord, conversation_id)
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if not record:
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return
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record.is_deleted = True
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await session.commit()
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async def create_dialog_record(
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self, conversation_id: str, user_prompt: str
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) -> Dict[str, Dialog]:
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"""
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创建对话记录
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:param conversation_id: 会话唯一标识
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:param user_prompt: 用户提示词
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:return: 创建对话记录的唯一标识
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"""
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async with rx.asession() as session:
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record = DialogRecord(
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conversation_id=conversation_id,
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user_prompt=user_prompt,
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)
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session.add(record)
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await session.commit()
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await session.refresh(record)
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return {record.id: Dialog(id=record.id, user_prompt=user_prompt)}
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async def complete_dialog_record(
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self,
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id: str,
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thoughts: Dict[int, Thought],
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result_output: str,
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) -> None:
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"""
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补全对话记录
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:param id: 对话唯一标识
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:param thoughts: 思考列表
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:param result_output: 结果输出
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:return: None
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"""
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async with rx.asession() as session:
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record = await session.get(DialogRecord, id) # 通过主键查询记录
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if not record:
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return
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record.thoughts = ThoughtTypeAdapter.dump_python(thoughts)
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record.result_output = result_output
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await session.commit()
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async def create_result_record(
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self,
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conversation_id: str,
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dialog_id: str,
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new_messages: List[ModelMessage],
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) -> None:
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"""
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创建结果记录
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:param conversation_id: 会话唯一标识
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:param dialog_id: 对话唯一标识
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:param new_messages: 新增消息
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:return: None
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"""
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async with rx.asession() as session:
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session.add(
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ResultRecord(
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conversation_id=conversation_id,
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dialog_id=dialog_id,
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new_messages=ModelMessagesTypeAdapter.dump_json(
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new_messages
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).decode(
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"utf-8"
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), # 序列化为 JSON 字符串
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)
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)
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await session.commit()
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async def get_message_history(self, conversation_id: str) -> List[ModelMessage]:
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"""
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获取消息历史
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:param conversation_id: 会话唯一标识
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:return: 消息历史
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"""
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records: List[ModelMessage] = []
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async with rx.asession() as session:
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result = await session.exec(
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select(ResultRecord)
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.where(ResultRecord.conversation_id == conversation_id)
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.order_by(desc(ResultRecord.dialog_id))
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)
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for record in result.all():
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records.extend(
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ModelMessagesTypeAdapter.validate_json(record.new_messages)
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)
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return records
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