188 lines
9.0 KiB
Python
188 lines
9.0 KiB
Python
# 定义了来自外部世界的信息
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# 外部世界可以是某个聊天 不同平台的聊天 也可以是任意媒体
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from datetime import datetime
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from src.plugins.models.utils_model import LLMRequest
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from src.config.config import global_config
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from src.common.database import db
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from src.common.logger import get_module_logger
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import traceback
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logger = get_module_logger("observation")
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# 所有观察的基类
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class Observation:
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def __init__(self, observe_type, observe_id):
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self.observe_info = ""
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self.observe_type = observe_type
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self.observe_id = observe_id
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self.last_observe_time = datetime.now().timestamp() # 初始化为当前时间
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# 聊天观察
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class ChattingObservation(Observation):
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def __init__(self, chat_id):
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super().__init__("chat", chat_id)
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self.chat_id = chat_id
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self.talking_message = []
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self.talking_message_str = ""
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self.name = global_config.BOT_NICKNAME
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self.nick_name = global_config.BOT_ALIAS_NAMES
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self.max_now_obs_len = global_config.observation_context_size
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self.overlap_len = global_config.compressed_length
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self.mid_memorys = []
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self.max_mid_memory_len = global_config.compress_length_limit
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self.mid_memory_info = ""
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self.now_message_info = ""
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# self._observe_lock = asyncio.Lock() # 移除锁
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# 初始化时加载最近的10条消息
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initial_messages_cursor = (
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db.messages.find({"chat_id": self.chat_id, "time": {"$lt": self.last_observe_time}})
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.sort("time", -1) # 按时间倒序
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.limit(10) # 获取最多10条
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)
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initial_messages = list(initial_messages_cursor)
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initial_messages.reverse() # 恢复时间正序
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self.talking_message = initial_messages # 将这些消息设为初始上下文
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self.now_message_info = self.translate_message_list_to_str(self.talking_message) # 更新初始的 now_message_info
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self.llm_summary = LLMRequest(
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model=global_config.llm_observation, temperature=0.7, max_tokens=300, request_type="chat_observation"
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)
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# 进行一次观察 返回观察结果observe_info
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def get_observe_info(self, ids=None):
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if ids:
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mid_memory_str = ""
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for id in ids:
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print(f"id：{id}")
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try:
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for mid_memory in self.mid_memorys:
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if mid_memory["id"] == id:
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mid_memory_by_id = mid_memory
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msg_str = ""
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for msg in mid_memory_by_id["messages"]:
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msg_str += f"{msg['detailed_plain_text']}"
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# time_diff = int((datetime.now().timestamp() - mid_memory_by_id["created_at"]) / 60)
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# mid_memory_str += f"距离现在{time_diff}分钟前：\n{msg_str}\n"
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mid_memory_str += f"{msg_str}\n"
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except Exception as e:
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logger.error(f"获取mid_memory_id失败: {e}")
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traceback.print_exc()
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# print(f"获取mid_memory_id失败: {e}")
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return self.now_message_info
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return mid_memory_str + "现在群里正在聊：\n" + self.now_message_info
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else:
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return self.now_message_info
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async def observe(self):
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# async with self._observe_lock: # 移除锁
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# 查找新消息，最多获取 self.max_now_obs_len 条
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new_messages_cursor = (
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db.messages.find({"chat_id": self.chat_id, "time": {"$gt": self.last_observe_time}})
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.sort("time", -1) # 按时间倒序排序
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.limit(self.max_now_obs_len) # 限制数量
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)
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new_messages = list(new_messages_cursor)
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new_messages.reverse() # 反转列表，使消息按时间正序排列
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if not new_messages:
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# 如果没有获取到限制数量内的较新消息，可能仍然有更早的消息，但我们只关注最近的
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# 检查是否有任何新消息（即使超出限制），以决定是否更新 last_observe_time
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# 注意：这里的查询也可能与其他并发 observe 冲突，但锁保护了状态更新
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# 由于外部已加锁，此处的并发冲突担忧不再需要
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any_new_message = db.messages.find_one({"chat_id": self.chat_id, "time": {"$gt": self.last_observe_time}})
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if not any_new_message:
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return # 确实没有新消息
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# 如果有超过限制的更早的新消息，仍然需要更新时间戳，防止重复获取旧消息
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# 但不将它们加入 talking_message
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latest_message_time_cursor = (
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db.messages.find({"chat_id": self.chat_id, "time": {"$gt": self.last_observe_time}})
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.sort("time", -1)
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.limit(1)
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)
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latest_time_doc = next(latest_message_time_cursor, None)
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if latest_time_doc:
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# 确保只在严格大于时更新，避免因并发查询导致时间戳回退
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if latest_time_doc["time"] > self.last_observe_time:
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self.last_observe_time = latest_time_doc["time"]
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return # 返回，因为我们只关心限制内的最新消息
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self.last_observe_time = new_messages[-1]["time"]
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self.talking_message.extend(new_messages)
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if len(self.talking_message) > self.max_now_obs_len:
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try: # 使用 try...finally 仅用于可能的LLM调用错误处理
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# 计算需要移除的消息数量，保留最新的 max_now_obs_len 条
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messages_to_remove_count = len(self.talking_message) - self.max_now_obs_len
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oldest_messages = self.talking_message[:messages_to_remove_count]
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self.talking_message = self.talking_message[messages_to_remove_count:] # 保留后半部分，即最新的
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oldest_messages_str = "\n".join(
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[msg["detailed_plain_text"] for msg in oldest_messages if "detailed_plain_text" in msg]
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) # 增加检查
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oldest_timestamps = [msg["time"] for msg in oldest_messages]
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# 调用 LLM 总结主题
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prompt = f"请总结以下聊天记录的主题：\n{oldest_messages_str}\n主题,用一句话概括包括人物事件和主要信息，不要分点："
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summary = "无法总结主题" # 默认值
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try:
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summary_result, _ = await self.llm_summary.generate_response_async(prompt)
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if summary_result: # 确保结果不为空
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summary = summary_result
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except Exception as e:
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logger.error(f"总结主题失败 for chat {self.chat_id}: {e}")
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# 保留默认总结 "无法总结主题"
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mid_memory = {
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"id": str(int(datetime.now().timestamp())),
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"theme": summary,
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"messages": oldest_messages, # 存储原始消息对象
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"timestamps": oldest_timestamps,
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"chat_id": self.chat_id,
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"created_at": datetime.now().timestamp(),
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}
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# print(f"mid_memory：{mid_memory}")
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# 存入内存中的 mid_memorys
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self.mid_memorys.append(mid_memory)
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if len(self.mid_memorys) > self.max_mid_memory_len:
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self.mid_memorys.pop(0) # 移除最旧的
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mid_memory_str = "之前聊天的内容概述是：\n"
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for mid_memory_item in self.mid_memorys: # 重命名循环变量以示区分
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time_diff = int((datetime.now().timestamp() - mid_memory_item["created_at"]) / 60)
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mid_memory_str += (
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f"距离现在{time_diff}分钟前(聊天记录id:{mid_memory_item['id']})：{mid_memory_item['theme']}\n"
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)
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self.mid_memory_info = mid_memory_str
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except Exception as e: # 将异常处理移至此处以覆盖整个总结过程
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logger.error(f"处理和总结旧消息时出错 for chat {self.chat_id}: {e}")
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traceback.print_exc() # 记录详细堆栈
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# print(f"处理后self.talking_message：{self.talking_message}")
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now_message_str = ""
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# 使用 self.translate_message_list_to_str 更新当前聊天内容
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now_message_str += self.translate_message_list_to_str(talking_message=self.talking_message)
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self.now_message_info = now_message_str
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logger.trace(
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f"Chat {self.chat_id} - 压缩早期记忆：{self.mid_memory_info}\n现在聊天内容：{self.now_message_info}"
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)
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@staticmethod
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def translate_message_list_to_str(talking_message):
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talking_message_str = ""
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for message in talking_message:
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talking_message_str += message["detailed_plain_text"]
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return talking_message_str
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