ref:重构历史消息记录概括器
支持分话题提取 更智能的截断 支持文件缓存 支持要点提取
This commit is contained in:
@@ -1,493 +0,0 @@
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"""
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聊天内容概括器
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用于累积、打包和压缩聊天记录
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"""
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import asyncio
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import json
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import time
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from typing import List, Optional, Set
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from dataclasses import dataclass
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from src.common.logger import get_logger
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from src.common.data_models.database_data_model import DatabaseMessages
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from src.config.config import global_config, model_config
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from src.llm_models.utils_model import LLMRequest
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from src.plugin_system.apis import message_api
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from src.chat.utils.chat_message_builder import build_readable_messages
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from src.person_info.person_info import Person
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from src.chat.message_receive.chat_stream import get_chat_manager
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logger = get_logger("chat_history_summarizer")
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@dataclass
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class MessageBatch:
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"""消息批次"""
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messages: List[DatabaseMessages]
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start_time: float
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end_time: float
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is_preparing: bool = False # 是否处于准备结束模式
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class ChatHistorySummarizer:
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"""聊天内容概括器"""
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def __init__(self, chat_id: str, check_interval: int = 60):
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"""
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初始化聊天内容概括器
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Args:
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chat_id: 聊天ID
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check_interval: 定期检查间隔(秒),默认60秒
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"""
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self.chat_id = chat_id
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self._chat_display_name = self._get_chat_display_name()
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self.log_prefix = f"[{self._chat_display_name}]"
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# 记录时间点,用于计算新消息
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self.last_check_time = time.time()
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# 当前累积的消息批次
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self.current_batch: Optional[MessageBatch] = None
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# LLM请求器,用于压缩聊天内容
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self.summarizer_llm = LLMRequest(
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model_set=model_config.model_task_config.utils, request_type="chat_history_summarizer"
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)
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# 后台循环相关
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self.check_interval = check_interval # 检查间隔(秒)
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self._periodic_task: Optional[asyncio.Task] = None
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self._running = False
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def _get_chat_display_name(self) -> str:
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"""获取聊天显示名称"""
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try:
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chat_name = get_chat_manager().get_stream_name(self.chat_id)
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if chat_name:
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return chat_name
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# 如果获取失败,使用简化的chat_id显示
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if len(self.chat_id) > 20:
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return f"{self.chat_id[:8]}..."
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return self.chat_id
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except Exception:
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# 如果获取失败,使用简化的chat_id显示
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if len(self.chat_id) > 20:
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return f"{self.chat_id[:8]}..."
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return self.chat_id
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async def process(self, current_time: Optional[float] = None):
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"""
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处理聊天内容概括
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Args:
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current_time: 当前时间戳,如果为None则使用time.time()
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"""
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if current_time is None:
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current_time = time.time()
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try:
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# 获取从上次检查时间到当前时间的新消息
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new_messages = message_api.get_messages_by_time_in_chat(
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chat_id=self.chat_id,
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start_time=self.last_check_time,
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end_time=current_time,
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limit=0,
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limit_mode="latest",
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filter_mai=False, # 不过滤bot消息,因为需要检查bot是否发言
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filter_command=False,
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)
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if not new_messages:
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# 没有新消息,检查是否需要打包
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if self.current_batch and self.current_batch.messages:
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await self._check_and_package(current_time)
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self.last_check_time = current_time
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return
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logger.debug(
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f"{self.log_prefix} 开始处理聊天概括,时间窗口: {self.last_check_time:.2f} -> {current_time:.2f}"
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)
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# 有新消息,更新最后检查时间
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self.last_check_time = current_time
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# 如果有当前批次,添加新消息
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if self.current_batch:
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before_count = len(self.current_batch.messages)
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self.current_batch.messages.extend(new_messages)
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self.current_batch.end_time = current_time
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logger.info(f"{self.log_prefix} 更新聊天话题: {before_count} -> {len(self.current_batch.messages)} 条消息")
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else:
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# 创建新批次
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self.current_batch = MessageBatch(
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messages=new_messages,
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start_time=new_messages[0].time if new_messages else current_time,
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end_time=current_time,
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)
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logger.info(f"{self.log_prefix} 新建聊天话题: {len(new_messages)} 条消息")
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# 检查是否需要打包
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await self._check_and_package(current_time)
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except Exception as e:
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logger.error(f"{self.log_prefix} 处理聊天内容概括时出错: {e}")
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import traceback
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traceback.print_exc()
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async def _check_and_package(self, current_time: float):
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"""检查是否需要打包"""
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if not self.current_batch or not self.current_batch.messages:
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return
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messages = self.current_batch.messages
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message_count = len(messages)
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last_message_time = messages[-1].time if messages else current_time
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time_since_last_message = current_time - last_message_time
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# 格式化时间差显示
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if time_since_last_message < 60:
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time_str = f"{time_since_last_message:.1f}秒"
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elif time_since_last_message < 3600:
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time_str = f"{time_since_last_message / 60:.1f}分钟"
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else:
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time_str = f"{time_since_last_message / 3600:.1f}小时"
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preparing_status = "是" if self.current_batch.is_preparing else "否"
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logger.info(
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f"{self.log_prefix} 批次状态检查 | 消息数: {message_count} | 距最后消息: {time_str} | 准备结束模式: {preparing_status}"
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)
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# 检查打包条件
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should_package = False
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# 条件1: 消息长度超过120,直接打包
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if message_count >= 120:
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should_package = True
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logger.info(f"{self.log_prefix} 触发打包条件: 消息数量达到 {message_count} 条(阈值: 120条)")
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# 条件2: 最后一条消息的时间和当前时间差>600秒,直接打包
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elif time_since_last_message > 600:
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should_package = True
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logger.info(f"{self.log_prefix} 触发打包条件: 距最后消息 {time_str}(阈值: 10分钟)")
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# 条件3: 消息长度超过100,进入准备结束模式
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elif message_count > 100:
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if not self.current_batch.is_preparing:
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self.current_batch.is_preparing = True
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logger.info(f"{self.log_prefix} 消息数量 {message_count} 条超过阈值(100条),进入准备结束模式")
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# 在准备结束模式下,如果最后一条消息的时间和当前时间差>10秒,就打包
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if time_since_last_message > 10:
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should_package = True
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logger.info(f"{self.log_prefix} 触发打包条件: 准备结束模式下,距最后消息 {time_str}(阈值: 10秒)")
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if should_package:
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await self._package_and_store()
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async def _package_and_store(self):
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"""打包并存储聊天记录"""
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if not self.current_batch or not self.current_batch.messages:
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return
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messages = self.current_batch.messages
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start_time = self.current_batch.start_time
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end_time = self.current_batch.end_time
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logger.info(
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f"{self.log_prefix} 开始打包批次 | 消息数: {len(messages)} | 时间范围: {start_time:.2f} - {end_time:.2f}"
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)
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# 检查是否有bot发言
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# 第一条消息前推600s到最后一条消息的时间内
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check_start_time = max(start_time - 600, 0)
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check_end_time = end_time
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# 使用包含边界的时间范围查询
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bot_messages = message_api.get_messages_by_time_in_chat_inclusive(
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chat_id=self.chat_id,
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start_time=check_start_time,
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end_time=check_end_time,
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limit=0,
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limit_mode="latest",
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filter_mai=False,
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filter_command=False,
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)
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# 检查是否有bot的发言
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has_bot_message = False
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bot_user_id = str(global_config.bot.qq_account)
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for msg in bot_messages:
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if msg.user_info.user_id == bot_user_id:
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has_bot_message = True
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break
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if not has_bot_message:
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logger.info(
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f"{self.log_prefix} 批次内无Bot发言,丢弃批次 | 检查时间范围: {check_start_time:.2f} - {check_end_time:.2f}"
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)
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self.current_batch = None
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return
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# 有bot发言,进行压缩和存储
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try:
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# 构建对话原文
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original_text = build_readable_messages(
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messages=messages,
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replace_bot_name=True,
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timestamp_mode="normal_no_YMD",
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read_mark=0.0,
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truncate=False,
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show_actions=False,
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)
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# 获取参与的所有人的昵称
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participants_set: Set[str] = set()
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for msg in messages:
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# 使用 msg.user_platform(扁平化字段)或 msg.user_info.platform
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platform = (
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getattr(msg, "user_platform", None)
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or (msg.user_info.platform if msg.user_info else None)
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or msg.chat_info.platform
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)
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person = Person(platform=platform, user_id=msg.user_info.user_id)
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person_name = person.person_name
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if person_name:
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participants_set.add(person_name)
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participants = list(participants_set)
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logger.info(f"{self.log_prefix} 批次参与者: {', '.join(participants) if participants else '未知'}")
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# 使用LLM压缩聊天内容
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success, theme, keywords, summary = await self._compress_with_llm(original_text)
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if not success:
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logger.warning(f"{self.log_prefix} LLM压缩失败,不存储到数据库 | 消息数: {len(messages)}")
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# 清空当前批次,避免重复处理
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self.current_batch = None
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return
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logger.info(
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f"{self.log_prefix} LLM压缩完成 | 主题: {theme} | 关键词数: {len(keywords)} | 概括长度: {len(summary)} 字"
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)
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# 存储到数据库
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await self._store_to_database(
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start_time=start_time,
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end_time=end_time,
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original_text=original_text,
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participants=participants,
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theme=theme,
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keywords=keywords,
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summary=summary,
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)
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logger.info(f"{self.log_prefix} 成功打包并存储聊天记录 | 消息数: {len(messages)} | 主题: {theme}")
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# 清空当前批次
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self.current_batch = None
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except Exception as e:
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logger.error(f"{self.log_prefix} 打包和存储聊天记录时出错: {e}")
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import traceback
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traceback.print_exc()
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# 出错时也清空批次,避免重复处理
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self.current_batch = None
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async def _compress_with_llm(self, original_text: str) -> tuple[bool, str, List[str], str]:
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"""
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使用LLM压缩聊天内容
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Returns:
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tuple[bool, str, List[str], str]: (是否成功, 主题, 关键词列表, 概括)
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"""
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prompt = f"""请对以下聊天记录进行概括,提取以下信息:
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1. 主题:这段对话的主要内容,一个简短的标题(不超过20字)
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2. 关键词:这段对话的关键词,用列表形式返回(3-10个关键词)
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3. 概括:对这段话的平文本概括(50-200字)
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请以JSON格式返回,格式如下:
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{{
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"theme": "主题",
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"keywords": ["关键词1", "关键词2", ...],
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"summary": "概括内容"
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}}
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聊天记录:
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{original_text}
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请直接返回JSON,不要包含其他内容。"""
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try:
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response, _ = await self.summarizer_llm.generate_response_async(
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prompt=prompt,
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temperature=0.3,
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max_tokens=500,
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)
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# 解析JSON响应
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import re
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# 移除可能的markdown代码块标记
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json_str = response.strip()
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json_str = re.sub(r"^```json\s*", "", json_str, flags=re.MULTILINE)
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json_str = re.sub(r"^```\s*", "", json_str, flags=re.MULTILINE)
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json_str = json_str.strip()
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# 尝试找到JSON对象的开始和结束位置
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# 查找第一个 { 和最后一个匹配的 }
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start_idx = json_str.find("{")
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if start_idx == -1:
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raise ValueError("未找到JSON对象开始标记")
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# 从后往前查找最后一个 }
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end_idx = json_str.rfind("}")
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if end_idx == -1 or end_idx <= start_idx:
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raise ValueError("未找到JSON对象结束标记")
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# 提取JSON字符串
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json_str = json_str[start_idx : end_idx + 1]
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# 尝试解析JSON
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try:
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result = json.loads(json_str)
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except json.JSONDecodeError:
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# 如果解析失败,尝试修复字符串值中的中文引号
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# 简单方法:将字符串值中的中文引号替换为转义的英文引号
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# 使用状态机方法:遍历字符串,在字符串值内部替换中文引号
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fixed_chars = []
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in_string = False
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escape_next = False
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i = 0
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while i < len(json_str):
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char = json_str[i]
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if escape_next:
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fixed_chars.append(char)
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escape_next = False
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elif char == "\\":
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fixed_chars.append(char)
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escape_next = True
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elif char == '"' and not escape_next:
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fixed_chars.append(char)
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in_string = not in_string
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elif in_string and (char == '"' or char == '"'):
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# 在字符串值内部,将中文引号替换为转义的英文引号
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fixed_chars.append('\\"')
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else:
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fixed_chars.append(char)
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i += 1
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json_str = "".join(fixed_chars)
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# 再次尝试解析
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result = json.loads(json_str)
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theme = result.get("theme", "未命名对话")
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keywords = result.get("keywords", [])
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summary = result.get("summary", "无概括")
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# 确保keywords是列表
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if isinstance(keywords, str):
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keywords = [keywords]
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return True, theme, keywords, summary
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except Exception as e:
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logger.error(f"{self.log_prefix} LLM压缩聊天内容时出错: {e}")
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logger.error(f"{self.log_prefix} LLM响应: {response if 'response' in locals() else 'N/A'}")
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# 返回失败标志和默认值
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return False, "未命名对话", [], "压缩失败,无法生成概括"
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async def _store_to_database(
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self,
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start_time: float,
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end_time: float,
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original_text: str,
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participants: List[str],
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theme: str,
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keywords: List[str],
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summary: str,
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):
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"""存储到数据库"""
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try:
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from src.common.database.database_model import ChatHistory
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from src.plugin_system.apis import database_api
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# 准备数据
|
||||
data = {
|
||||
"chat_id": self.chat_id,
|
||||
"start_time": start_time,
|
||||
"end_time": end_time,
|
||||
"original_text": original_text,
|
||||
"participants": json.dumps(participants, ensure_ascii=False),
|
||||
"theme": theme,
|
||||
"keywords": json.dumps(keywords, ensure_ascii=False),
|
||||
"summary": summary,
|
||||
"count": 0,
|
||||
}
|
||||
|
||||
# 使用db_save存储(使用start_time和chat_id作为唯一标识)
|
||||
# 由于可能有多条记录,我们使用组合键,但peewee不支持,所以使用start_time作为唯一标识
|
||||
# 但为了避免冲突,我们使用组合键:chat_id + start_time
|
||||
# 由于peewee不支持组合键,我们直接创建新记录(不提供key_field和key_value)
|
||||
saved_record = await database_api.db_save(
|
||||
ChatHistory,
|
||||
data=data,
|
||||
)
|
||||
|
||||
if saved_record:
|
||||
logger.debug(f"{self.log_prefix} 成功存储聊天历史记录到数据库")
|
||||
else:
|
||||
logger.warning(f"{self.log_prefix} 存储聊天历史记录到数据库失败")
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"{self.log_prefix} 存储到数据库时出错: {e}")
|
||||
import traceback
|
||||
|
||||
traceback.print_exc()
|
||||
raise
|
||||
|
||||
async def start(self):
|
||||
"""启动后台定期检查循环"""
|
||||
if self._running:
|
||||
logger.warning(f"{self.log_prefix} 后台循环已在运行,无需重复启动")
|
||||
return
|
||||
|
||||
self._running = True
|
||||
self._periodic_task = asyncio.create_task(self._periodic_check_loop())
|
||||
logger.info(f"{self.log_prefix} 已启动后台定期检查循环 | 检查间隔: {self.check_interval}秒")
|
||||
|
||||
async def stop(self):
|
||||
"""停止后台定期检查循环"""
|
||||
self._running = False
|
||||
if self._periodic_task:
|
||||
self._periodic_task.cancel()
|
||||
try:
|
||||
await self._periodic_task
|
||||
except asyncio.CancelledError:
|
||||
pass
|
||||
self._periodic_task = None
|
||||
logger.info(f"{self.log_prefix} 已停止后台定期检查循环")
|
||||
|
||||
async def _periodic_check_loop(self):
|
||||
"""后台定期检查循环"""
|
||||
try:
|
||||
while self._running:
|
||||
# 执行一次检查
|
||||
await self.process()
|
||||
|
||||
# 等待指定间隔后再次检查
|
||||
await asyncio.sleep(self.check_interval)
|
||||
except asyncio.CancelledError:
|
||||
logger.info(f"{self.log_prefix} 后台检查循环被取消")
|
||||
raise
|
||||
except Exception as e:
|
||||
logger.error(f"{self.log_prefix} 后台检查循环出错: {e}")
|
||||
import traceback
|
||||
|
||||
traceback.print_exc()
|
||||
self._running = False
|
||||
Reference in New Issue
Block a user