315 lines
11 KiB
Python
315 lines
11 KiB
Python
import time
|
||
import asyncio
|
||
from typing import Optional, Dict, Any, List, Tuple
|
||
from src.common.logger import get_module_logger
|
||
from src.common.database import db
|
||
from ..message.message_base import UserInfo
|
||
from ..config.config import global_config
|
||
|
||
logger = get_module_logger("chat_observer")
|
||
|
||
|
||
class ChatObserver:
|
||
"""聊天状态观察器"""
|
||
|
||
# 类级别的实例管理
|
||
_instances: Dict[str, "ChatObserver"] = {}
|
||
|
||
@classmethod
|
||
def get_instance(cls, stream_id: str) -> "ChatObserver":
|
||
"""获取或创建观察器实例
|
||
|
||
Args:
|
||
stream_id: 聊天流ID
|
||
|
||
Returns:
|
||
ChatObserver: 观察器实例
|
||
"""
|
||
if stream_id not in cls._instances:
|
||
cls._instances[stream_id] = cls(stream_id)
|
||
return cls._instances[stream_id]
|
||
|
||
def __init__(self, stream_id: str):
|
||
"""初始化观察器
|
||
|
||
Args:
|
||
stream_id: 聊天流ID
|
||
"""
|
||
if stream_id in self._instances:
|
||
raise RuntimeError(f"ChatObserver for {stream_id} already exists. Use get_instance() instead.")
|
||
|
||
self.stream_id = stream_id
|
||
self.last_user_speak_time: Optional[float] = None # 对方上次发言时间
|
||
self.last_bot_speak_time: Optional[float] = None # 机器人上次发言时间
|
||
self.last_check_time: float = time.time() # 上次查看聊天记录时间
|
||
self.last_message_read: Optional[str] = None # 最后读取的消息ID
|
||
self.last_message_time: Optional[float] = None # 最后一条消息的时间戳
|
||
|
||
self.waiting_start_time: Optional[float] = None # 等待开始时间
|
||
|
||
# 消息历史记录
|
||
self.message_history: List[Dict[str, Any]] = [] # 所有消息历史
|
||
self.last_message_id: Optional[str] = None # 最后一条消息的ID
|
||
self.message_count: int = 0 # 消息计数
|
||
|
||
# 运行状态
|
||
self._running: bool = False
|
||
self._task: Optional[asyncio.Task] = None
|
||
self._update_event = asyncio.Event() # 触发更新的事件
|
||
self._update_complete = asyncio.Event() # 更新完成的事件
|
||
|
||
def check(self) -> bool:
|
||
"""检查距离上一次观察之后是否有了新消息
|
||
|
||
Returns:
|
||
bool: 是否有新消息
|
||
"""
|
||
logger.debug(f"检查距离上一次观察之后是否有了新消息: {self.last_check_time}")
|
||
|
||
query = {"chat_id": self.stream_id, "time": {"$gt": self.last_check_time}}
|
||
|
||
# 只需要查询是否存在，不需要获取具体消息
|
||
new_message_exists = db.messages.find_one(query) is not None
|
||
|
||
if new_message_exists:
|
||
logger.debug("发现新消息")
|
||
self.last_check_time = time.time()
|
||
|
||
return new_message_exists
|
||
|
||
def get_new_message(self) -> Tuple[List[Dict[str, Any]], List[Dict[str, Any]]]:
|
||
"""获取上一次观察的时间点后的新消息，插入到历史记录中，并返回新消息和历史记录两个对象"""
|
||
messages = self.get_message_history(self.last_check_time)
|
||
for message in messages:
|
||
self._add_message_to_history(message)
|
||
return messages, self.message_history
|
||
|
||
def new_message_after(self, time_point: float) -> bool:
|
||
"""判断是否在指定时间点后有新消息
|
||
|
||
Args:
|
||
time_point: 时间戳
|
||
|
||
Returns:
|
||
bool: 是否有新消息
|
||
"""
|
||
logger.debug(f"判断是否在指定时间点后有新消息: {self.last_message_time} > {time_point}")
|
||
return self.last_message_time is None or self.last_message_time > time_point
|
||
|
||
def _add_message_to_history(self, message: Dict[str, Any]):
|
||
"""添加消息到历史记录
|
||
|
||
Args:
|
||
message: 消息数据
|
||
"""
|
||
self.message_history.append(message)
|
||
self.last_message_id = message["message_id"]
|
||
self.last_message_time = message["time"] # 更新最后消息时间
|
||
self.message_count += 1
|
||
|
||
# 更新说话时间
|
||
user_info = UserInfo.from_dict(message.get("user_info", {}))
|
||
if user_info.user_id == global_config.BOT_QQ:
|
||
self.last_bot_speak_time = message["time"]
|
||
else:
|
||
self.last_user_speak_time = message["time"]
|
||
|
||
def get_message_history(
|
||
self,
|
||
start_time: Optional[float] = None,
|
||
end_time: Optional[float] = None,
|
||
limit: Optional[int] = None,
|
||
user_id: Optional[str] = None,
|
||
) -> List[Dict[str, Any]]:
|
||
"""获取消息历史
|
||
|
||
Args:
|
||
start_time: 开始时间戳
|
||
end_time: 结束时间戳
|
||
limit: 限制返回消息数量
|
||
user_id: 指定用户ID
|
||
|
||
Returns:
|
||
List[Dict[str, Any]]: 消息列表
|
||
"""
|
||
filtered_messages = self.message_history
|
||
|
||
if start_time is not None:
|
||
filtered_messages = [m for m in filtered_messages if m["time"] >= start_time]
|
||
|
||
if end_time is not None:
|
||
filtered_messages = [m for m in filtered_messages if m["time"] <= end_time]
|
||
|
||
if user_id is not None:
|
||
filtered_messages = [
|
||
m for m in filtered_messages if UserInfo.from_dict(m.get("user_info", {})).user_id == user_id
|
||
]
|
||
|
||
if limit is not None:
|
||
filtered_messages = filtered_messages[-limit:]
|
||
|
||
return filtered_messages
|
||
|
||
async def _fetch_new_messages(self) -> List[Dict[str, Any]]:
|
||
"""获取新消息
|
||
|
||
Returns:
|
||
List[Dict[str, Any]]: 新消息列表
|
||
"""
|
||
query = {"chat_id": self.stream_id}
|
||
if self.last_message_read:
|
||
# 获取ID大于last_message_read的消息
|
||
last_message = db.messages.find_one({"message_id": self.last_message_read})
|
||
if last_message:
|
||
query["time"] = {"$gt": last_message["time"]}
|
||
|
||
new_messages = list(db.messages.find(query).sort("time", 1))
|
||
|
||
if new_messages:
|
||
self.last_message_read = new_messages[-1]["message_id"]
|
||
|
||
return new_messages
|
||
|
||
async def _fetch_new_messages_before(self, time_point: float) -> List[Dict[str, Any]]:
|
||
"""获取指定时间点之前的消息
|
||
|
||
Args:
|
||
time_point: 时间戳
|
||
|
||
Returns:
|
||
List[Dict[str, Any]]: 最多5条消息
|
||
"""
|
||
query = {"chat_id": self.stream_id, "time": {"$lt": time_point}}
|
||
|
||
new_messages = list(
|
||
db.messages.find(query).sort("time", -1).limit(5) # 倒序获取5条
|
||
)
|
||
|
||
# 将消息按时间正序排列
|
||
new_messages.reverse()
|
||
|
||
if new_messages:
|
||
self.last_message_read = new_messages[-1]["message_id"]
|
||
|
||
return new_messages
|
||
|
||
async def _update_loop(self):
|
||
"""更新循环"""
|
||
try:
|
||
start_time = time.time()
|
||
messages = await self._fetch_new_messages_before(start_time)
|
||
for message in messages:
|
||
self._add_message_to_history(message)
|
||
except Exception as e:
|
||
logger.error(f"缓冲消息出错: {e}")
|
||
|
||
while self._running:
|
||
try:
|
||
# 等待事件或超时（1秒）
|
||
try:
|
||
await asyncio.wait_for(self._update_event.wait(), timeout=1)
|
||
except asyncio.TimeoutError:
|
||
pass # 超时后也执行一次检查
|
||
|
||
self._update_event.clear() # 重置触发事件
|
||
self._update_complete.clear() # 重置完成事件
|
||
|
||
# 获取新消息
|
||
new_messages = await self._fetch_new_messages()
|
||
|
||
if new_messages:
|
||
# 处理新消息
|
||
for message in new_messages:
|
||
self._add_message_to_history(message)
|
||
|
||
# 设置完成事件
|
||
self._update_complete.set()
|
||
|
||
except Exception as e:
|
||
logger.error(f"更新循环出错: {e}")
|
||
self._update_complete.set() # 即使出错也要设置完成事件
|
||
|
||
def trigger_update(self):
|
||
"""触发一次立即更新"""
|
||
self._update_event.set()
|
||
|
||
async def wait_for_update(self, timeout: float = 5.0) -> bool:
|
||
"""等待更新完成
|
||
|
||
Args:
|
||
timeout: 超时时间（秒）
|
||
|
||
Returns:
|
||
bool: 是否成功完成更新（False表示超时）
|
||
"""
|
||
try:
|
||
await asyncio.wait_for(self._update_complete.wait(), timeout=timeout)
|
||
return True
|
||
except asyncio.TimeoutError:
|
||
logger.warning(f"等待更新完成超时（{timeout}秒）")
|
||
return False
|
||
|
||
def start(self):
|
||
"""启动观察器"""
|
||
if self._running:
|
||
return
|
||
|
||
self._running = True
|
||
self._task = asyncio.create_task(self._update_loop())
|
||
logger.info(f"ChatObserver for {self.stream_id} started")
|
||
|
||
def stop(self):
|
||
"""停止观察器"""
|
||
self._running = False
|
||
self._update_event.set() # 设置事件以解除等待
|
||
self._update_complete.set() # 设置完成事件以解除等待
|
||
if self._task:
|
||
self._task.cancel()
|
||
logger.info(f"ChatObserver for {self.stream_id} stopped")
|
||
|
||
async def process_chat_history(self, messages: list):
|
||
"""处理聊天历史
|
||
|
||
Args:
|
||
messages: 消息列表
|
||
"""
|
||
self.update_check_time()
|
||
|
||
for msg in messages:
|
||
try:
|
||
user_info = UserInfo.from_dict(msg.get("user_info", {}))
|
||
if user_info.user_id == global_config.BOT_QQ:
|
||
self.update_bot_speak_time(msg["time"])
|
||
else:
|
||
self.update_user_speak_time(msg["time"])
|
||
except Exception as e:
|
||
logger.warning(f"处理消息时间时出错: {e}")
|
||
continue
|
||
|
||
def update_check_time(self):
|
||
"""更新查看时间"""
|
||
self.last_check_time = time.time()
|
||
|
||
def update_bot_speak_time(self, speak_time: Optional[float] = None):
|
||
"""更新机器人说话时间"""
|
||
self.last_bot_speak_time = speak_time or time.time()
|
||
|
||
def update_user_speak_time(self, speak_time: Optional[float] = None):
|
||
"""更新用户说话时间"""
|
||
self.last_user_speak_time = speak_time or time.time()
|
||
|
||
def get_time_info(self) -> str:
|
||
"""获取时间信息文本"""
|
||
current_time = time.time()
|
||
time_info = ""
|
||
|
||
if self.last_bot_speak_time:
|
||
bot_speak_ago = current_time - self.last_bot_speak_time
|
||
time_info += f"\n距离你上次发言已经过去了{int(bot_speak_ago)}秒"
|
||
|
||
if self.last_user_speak_time:
|
||
user_speak_ago = current_time - self.last_user_speak_time
|
||
time_info += f"\n距离对方上次发言已经过去了{int(user_speak_ago)}秒"
|
||
|
||
return time_info
|