474 lines
20 KiB
Python
474 lines
20 KiB
Python
"""
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重构后的聊天上下文管理器
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提供统一、稳定的聊天上下文管理功能
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每个 context_manager 实例只管理一个 stream 的上下文
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"""
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import asyncio
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import time
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from typing import Any
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from src.chat.energy_system import energy_manager
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from src.common.data_models.database_data_model import DatabaseMessages
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from src.common.data_models.message_manager_data_model import StreamContext
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from src.common.logger import get_logger
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from src.config.config import global_config
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from src.plugin_system.base.component_types import ChatType
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logger = get_logger("context_manager")
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# 全局背景任务集合（用于异步初始化等后台任务）
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_background_tasks = set()
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class SingleStreamContextManager:
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"""单流上下文管理器 - 每个实例只管理一个 stream 的上下文"""
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def __init__(self, stream_id: str, context: StreamContext, max_context_size: int | None = None):
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self.stream_id = stream_id
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self.context = context
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# 配置参数
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self.max_context_size = max_context_size or getattr(global_config.chat, "max_context_size", 100)
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# 元数据
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self.created_time = time.time()
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self.last_access_time = time.time()
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self.access_count = 0
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self.total_messages = 0
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# 标记是否已初始化历史消息
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self._history_initialized = False
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logger.debug(f"单流上下文管理器初始化: {stream_id}")
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# 异步初始化历史消息（不阻塞构造函数）
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task = asyncio.create_task(self._initialize_history_from_db())
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_background_tasks.add(task)
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task.add_done_callback(_background_tasks.discard)
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def get_context(self) -> StreamContext:
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"""获取流上下文"""
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self._update_access_stats()
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return self.context
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async def add_message(self, message: DatabaseMessages, skip_energy_update: bool = False) -> bool:
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"""添加消息到上下文
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Args:
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message: 消息对象
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skip_energy_update: 是否跳过能量更新（兼容参数，当前忽略）
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Returns:
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bool: 是否成功添加
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"""
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try:
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# 检查并配置StreamContext的缓存系统
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cache_enabled = global_config.chat.enable_message_cache
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if cache_enabled and not self.context.is_cache_enabled:
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self.context.enable_cache(True)
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logger.debug(f"为StreamContext {self.stream_id} 启用缓存系统")
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# 先计算兴趣值（需要在缓存前计算）
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await self._calculate_message_interest(message)
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message.is_read = False
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# 使用StreamContext的智能缓存功能
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success = self.context.add_message_with_cache_check(message, force_direct=not cache_enabled)
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if success:
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# 自动检测和更新chat type
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self._detect_chat_type(message)
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self.total_messages += 1
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self.last_access_time = time.time()
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# 如果使用了缓存系统，输出调试信息
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if cache_enabled and self.context.is_cache_enabled:
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if self.context.is_chatter_processing:
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logger.debug(f"消息已缓存到StreamContext，等待处理完成: stream={self.stream_id}")
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else:
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logger.debug(f"消息直接添加到StreamContext未读列表: stream={self.stream_id}")
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else:
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logger.debug(f"消息添加到StreamContext（缓存禁用）: {self.stream_id}")
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return True
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else:
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logger.error(f"StreamContext消息添加失败: {self.stream_id}")
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return False
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except Exception as e:
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logger.error(f"添加消息到单流上下文失败 {self.stream_id}: {e}", exc_info=True)
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return False
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async def update_message(self, message_id: str, updates: dict[str, Any]) -> bool:
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"""更新上下文中的消息
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Args:
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message_id: 消息ID
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updates: 更新的属性
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Returns:
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bool: 是否成功更新
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"""
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try:
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# 直接在未读消息中查找并更新（统一转字符串比较）
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for message in self.context.unread_messages:
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if str(message.message_id) == str(message_id):
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if "interest_value" in updates:
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message.interest_value = updates["interest_value"]
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if "actions" in updates:
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message.actions = updates["actions"]
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if "should_reply" in updates:
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message.should_reply = updates["should_reply"]
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break
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# 在历史消息中查找并更新（统一转字符串比较）
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for message in self.context.history_messages:
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if str(message.message_id) == str(message_id):
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if "interest_value" in updates:
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message.interest_value = updates["interest_value"]
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if "actions" in updates:
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message.actions = updates["actions"]
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if "should_reply" in updates:
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message.should_reply = updates["should_reply"]
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break
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logger.debug(f"更新单流上下文消息: {self.stream_id}/{message_id}")
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return True
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except Exception as e:
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logger.error(f"更新单流上下文消息失败 {self.stream_id}/{message_id}: {e}", exc_info=True)
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return False
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def get_messages(self, limit: int | None = None, include_unread: bool = True) -> list[DatabaseMessages]:
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"""获取上下文消息
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Args:
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limit: 消息数量限制
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include_unread: 是否包含未读消息
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Returns:
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List[DatabaseMessages]: 消息列表
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"""
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try:
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messages = []
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if include_unread:
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messages.extend(self.context.get_unread_messages())
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if limit:
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messages.extend(self.context.get_history_messages(limit=limit))
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else:
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messages.extend(self.context.get_history_messages())
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# 按时间排序
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messages.sort(key=lambda msg: getattr(msg, "time", 0))
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# 应用限制
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if limit and len(messages) > limit:
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messages = messages[-limit:]
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return messages
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except Exception as e:
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logger.error(f"获取单流上下文消息失败 {self.stream_id}: {e}", exc_info=True)
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return []
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def get_unread_messages(self) -> list[DatabaseMessages]:
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"""获取未读消息"""
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try:
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return self.context.get_unread_messages()
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except Exception as e:
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logger.error(f"获取单流未读消息失败 {self.stream_id}: {e}", exc_info=True)
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return []
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def mark_messages_as_read(self, message_ids: list[str]) -> bool:
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"""标记消息为已读"""
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try:
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if not hasattr(self.context, "mark_message_as_read"):
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logger.error(f"上下文对象缺少 mark_message_as_read 方法: {self.stream_id}")
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return False
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marked_count = 0
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failed_ids = []
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for message_id in message_ids:
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try:
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self.context.mark_message_as_read(message_id)
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marked_count += 1
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except Exception as e:
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failed_ids.append(str(message_id)[:8])
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logger.warning(f"标记消息已读失败 {message_id}: {e}")
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return marked_count > 0
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except Exception as e:
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logger.error(f"标记消息已读失败 {self.stream_id}: {e}", exc_info=True)
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return False
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async def clear_context(self) -> bool:
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"""清空上下文"""
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try:
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if hasattr(self.context, "unread_messages"):
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self.context.unread_messages.clear()
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if hasattr(self.context, "history_messages"):
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self.context.history_messages.clear()
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reset_attrs = ["interruption_count", "afc_threshold_adjustment", "last_check_time"]
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for attr in reset_attrs:
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if hasattr(self.context, attr):
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if attr in ["interruption_count", "afc_threshold_adjustment"]:
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setattr(self.context, attr, 0)
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else:
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setattr(self.context, attr, time.time())
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await self._update_stream_energy()
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logger.debug(f"清空单流上下文: {self.stream_id}")
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return True
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except Exception as e:
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logger.error(f"清空单流上下文失败 {self.stream_id}: {e}", exc_info=True)
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return False
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def get_statistics(self) -> dict[str, Any]:
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"""获取流统计信息"""
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try:
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current_time = time.time()
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uptime = current_time - self.created_time
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unread_messages = getattr(self.context, "unread_messages", [])
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history_messages = getattr(self.context, "history_messages", [])
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stats = {
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"stream_id": self.stream_id,
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"context_type": type(self.context).__name__,
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"total_messages": len(history_messages) + len(unread_messages),
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"unread_messages": len(unread_messages),
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"history_messages": len(history_messages),
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"is_active": getattr(self.context, "is_active", True),
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"last_check_time": getattr(self.context, "last_check_time", current_time),
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"interruption_count": getattr(self.context, "interruption_count", 0),
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"afc_threshold_adjustment": getattr(self.context, "afc_threshold_adjustment", 0.0),
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"created_time": self.created_time,
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"last_access_time": self.last_access_time,
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"access_count": self.access_count,
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"uptime_seconds": uptime,
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"idle_seconds": current_time - self.last_access_time,
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}
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# 添加缓存统计信息
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if hasattr(self.context, "get_cache_stats"):
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stats["cache_stats"] = self.context.get_cache_stats()
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return stats
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except Exception as e:
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logger.error(f"获取单流统计失败 {self.stream_id}: {e}", exc_info=True)
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return {}
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def flush_cached_messages(self) -> list[DatabaseMessages]:
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"""
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刷新StreamContext中的缓存消息到未读列表
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Returns:
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list[DatabaseMessages]: 刷新的消息列表
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"""
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try:
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if hasattr(self.context, "flush_cached_messages"):
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cached_messages = self.context.flush_cached_messages()
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if cached_messages:
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logger.debug(f"从StreamContext刷新缓存消息: stream={self.stream_id}, 数量={len(cached_messages)}")
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return cached_messages
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else:
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logger.debug(f"StreamContext不支持缓存刷新: stream={self.stream_id}")
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return []
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except Exception as e:
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logger.error(f"刷新StreamContext缓存失败: stream={self.stream_id}, error={e}")
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return []
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def get_cache_stats(self) -> dict[str, Any]:
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"""获取StreamContext的缓存统计信息"""
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try:
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if hasattr(self.context, "get_cache_stats"):
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return self.context.get_cache_stats()
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else:
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return {"error": "StreamContext不支持缓存统计"}
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except Exception as e:
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logger.error(f"获取StreamContext缓存统计失败: stream={self.stream_id}, error={e}")
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return {"error": str(e)}
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def validate_integrity(self) -> bool:
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"""验证上下文完整性"""
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try:
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# 检查基本属性
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required_attrs = ["stream_id", "unread_messages", "history_messages"]
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for attr in required_attrs:
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if not hasattr(self.context, attr):
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logger.warning(f"上下文缺少必要属性: {attr}")
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return False
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# 检查消息ID唯一性
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all_messages = getattr(self.context, "unread_messages", []) + getattr(self.context, "history_messages", [])
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message_ids = [msg.message_id for msg in all_messages if hasattr(msg, "message_id")]
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if len(message_ids) != len(set(message_ids)):
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logger.warning(f"上下文中存在重复消息ID: {self.stream_id}")
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return False
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return True
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except Exception as e:
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logger.error(f"验证单流上下文完整性失败 {self.stream_id}: {e}")
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return False
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def _update_access_stats(self):
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"""更新访问统计"""
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self.last_access_time = time.time()
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self.access_count += 1
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async def _initialize_history_from_db(self):
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"""从数据库初始化历史消息到context中"""
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if self._history_initialized:
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logger.debug(f"历史消息已初始化，跳过: {self.stream_id}, 当前历史消息数: {len(self.context.history_messages)}")
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return
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# 立即设置标志，防止并发重复加载
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logger.info(f"🔄 [历史加载] 开始从数据库加载历史消息: {self.stream_id}")
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self._history_initialized = True
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try:
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logger.debug(f"开始从数据库加载历史消息: {self.stream_id}")
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from src.chat.utils.chat_message_builder import get_raw_msg_before_timestamp_with_chat
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# 加载历史消息（限制数量为max_context_size的2倍，用于丰富上下文）
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db_messages = await get_raw_msg_before_timestamp_with_chat(
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chat_id=self.stream_id,
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timestamp=time.time(),
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limit=self.max_context_size * 2,
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)
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if db_messages:
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logger.info(f"📥 [历史加载] 从数据库获取到 {len(db_messages)} 条消息")
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# 将数据库消息转换为 DatabaseMessages 对象并添加到历史
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loaded_count = 0
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for msg_dict in db_messages:
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try:
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# 使用 ** 解包字典作为关键字参数
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db_msg = DatabaseMessages(**msg_dict)
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# 标记为已读
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db_msg.is_read = True
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# 添加到历史消息
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self.context.history_messages.append(db_msg)
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loaded_count += 1
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except Exception as e:
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logger.warning(f"转换历史消息失败 (message_id={msg_dict.get('message_id', 'unknown')}): {e}")
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continue
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logger.info(f"✅ [历史加载] 成功加载 {loaded_count} 条历史消息到内存: {self.stream_id}")
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else:
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logger.debug(f"没有历史消息需要加载: {self.stream_id}")
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except Exception as e:
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logger.error(f"从数据库初始化历史消息失败: {self.stream_id}, {e}", exc_info=True)
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# 加载失败时重置标志，允许重试
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self._history_initialized = False
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async def ensure_history_initialized(self):
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"""确保历史消息已初始化（供外部调用）"""
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if not self._history_initialized:
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await self._initialize_history_from_db()
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async def _calculate_message_interest(self, message: DatabaseMessages) -> float:
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"""
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在上下文管理器中计算消息的兴趣度
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"""
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try:
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from src.chat.interest_system.interest_manager import get_interest_manager
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interest_manager = get_interest_manager()
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if interest_manager.has_calculator():
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# 使用兴趣值计算组件计算
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result = await interest_manager.calculate_interest(message)
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if result.success:
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# 更新消息对象的兴趣值相关字段
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message.interest_value = result.interest_value
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message.should_reply = result.should_reply
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message.should_act = result.should_act
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logger.debug(
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f"消息 {message.message_id} 兴趣值已更新: {result.interest_value:.3f}, "
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f"should_reply: {result.should_reply}, should_act: {result.should_act}"
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)
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return result.interest_value
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else:
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logger.warning(f"消息 {message.message_id} 兴趣值计算失败: {result.error_message}")
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return 0.5
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else:
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logger.debug("未找到兴趣值计算器，使用默认兴趣值")
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return 0.5
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except Exception as e:
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logger.error(f"计算消息兴趣度时发生错误: {e}", exc_info=True)
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return 0.5
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def _detect_chat_type(self, message: DatabaseMessages):
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"""根据消息内容自动检测聊天类型"""
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# 只有在第一次添加消息时才检测聊天类型，避免后续消息改变类型
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if len(self.context.unread_messages) == 1: # 只有这条消息
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# 如果消息包含群组信息，则为群聊
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if message.chat_info.group_info:
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self.context.chat_type = ChatType.GROUP
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else:
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self.context.chat_type = ChatType.PRIVATE
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async def clear_context_async(self) -> bool:
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"""异步实现的 clear_context：清空消息并 await 能量重算。"""
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try:
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if hasattr(self.context, "unread_messages"):
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self.context.unread_messages.clear()
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if hasattr(self.context, "history_messages"):
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self.context.history_messages.clear()
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reset_attrs = ["interruption_count", "afc_threshold_adjustment", "last_check_time"]
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for attr in reset_attrs:
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if hasattr(self.context, attr):
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if attr in ["interruption_count", "afc_threshold_adjustment"]:
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setattr(self.context, attr, 0)
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else:
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setattr(self.context, attr, time.time())
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await self._update_stream_energy()
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logger.info(f"清空单流上下文(异步): {self.stream_id}")
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return True
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except Exception as e:
|
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logger.error(f"清空单流上下文失败 (async) {self.stream_id}: {e}", exc_info=True)
|
||
return False
|
||
|
||
async def refresh_focus_energy_from_history(self) -> None:
|
||
"""基于历史消息刷新聚焦能量"""
|
||
await self._update_stream_energy(include_unread=False)
|
||
|
||
async def _update_stream_energy(self, include_unread: bool = False) -> None:
|
||
"""更新流能量"""
|
||
try:
|
||
history_messages = self.context.get_history_messages(limit=self.max_context_size)
|
||
messages: list[DatabaseMessages] = list(history_messages)
|
||
|
||
if include_unread:
|
||
messages.extend(self.get_unread_messages())
|
||
|
||
# 获取用户ID（优先使用最新历史消息）
|
||
user_id = None
|
||
if messages:
|
||
last_message = messages[-1]
|
||
if hasattr(last_message, "user_info") and last_message.user_info:
|
||
user_id = last_message.user_info.user_id
|
||
|
||
await energy_manager.calculate_focus_energy(
|
||
stream_id=self.stream_id,
|
||
messages=messages,
|
||
user_id=user_id,
|
||
)
|
||
|
||
except Exception as e:
|
||
logger.error(f"更新单流能量失败 {self.stream_id}: {e}")
|