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LangBot/pkg/platform/sources/webchat.py
2025-06-30 21:49:59 +08:00

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import asyncio
import logging
import typing
from datetime import datetime
import pydantic
import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
import langbot_plugin.api.entities.builtin.platform.message as platform_message
import langbot_plugin.api.entities.builtin.platform.events as platform_events
import langbot_plugin.api.entities.builtin.platform.entities as platform_entities
from ...core import app
import langbot_plugin.api.definition.abstract.platform.event_logger as abstract_platform_logger
logger = logging.getLogger(__name__)
class WebChatMessage(pydantic.BaseModel):
id: int
role: str
content: str
message_chain: list[dict]
timestamp: str
class WebChatSession:
id: str
message_lists: dict[str, list[WebChatMessage]] = {}
resp_waiters: dict[int, asyncio.Future[WebChatMessage]]
def __init__(self, id: str):
self.id = id
self.message_lists = {}
self.resp_waiters = {}
def get_message_list(self, pipeline_uuid: str) -> list[WebChatMessage]:
if pipeline_uuid not in self.message_lists:
self.message_lists[pipeline_uuid] = []
return self.message_lists[pipeline_uuid]
class WebChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
"""WebChat调试适配器用于流水线调试"""
webchat_person_session: WebChatSession = pydantic.Field(exclude=True, default_factory=WebChatSession)
webchat_group_session: WebChatSession = pydantic.Field(exclude=True, default_factory=WebChatSession)
ap: app.Application = pydantic.Field(exclude=True) # set by bot manager
listeners: dict[
typing.Type[platform_events.Event],
typing.Callable[[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], None],
] = pydantic.Field(default_factory=dict, exclude=True)
debug_messages: dict[str, list[dict]] = pydantic.Field(default_factory=dict, exclude=True)
def __init__(self, config: dict, logger: abstract_platform_logger.AbstractEventLogger, ap: app.Application):
super().__init__(
config=config,
logger=logger,
ap=ap,
)
self.webchat_person_session = WebChatSession(id='webchatperson')
self.webchat_group_session = WebChatSession(id='webchatgroup')
self.bot_account_id = 'webchatbot'
self.debug_messages = {}
async def send_message(
self,
target_type: str,
target_id: str,
message: platform_message.MessageChain,
) -> dict:
"""发送消息到调试会话"""
session_key = target_id
if session_key not in self.debug_messages:
self.debug_messages[session_key] = []
message_data = {
'id': len(self.debug_messages[session_key]) + 1,
'type': 'bot',
'content': str(message),
'timestamp': datetime.now().isoformat(),
'message_chain': [component.__dict__ for component in message],
}
self.debug_messages[session_key].append(message_data)
await self.logger.info(f'Send message to {session_key}: {message}')
return message_data
async def reply_message(
self,
message_source: platform_events.MessageEvent,
message: platform_message.MessageChain,
quote_origin: bool = False,
) -> dict:
"""回复消息"""
message_data = WebChatMessage(
id=-1,
role='assistant',
content=str(message),
message_chain=[component.__dict__ for component in message],
timestamp=datetime.now().isoformat(),
)
# notify waiter
if isinstance(message_source, platform_events.FriendMessage):
self.webchat_person_session.resp_waiters[message_source.message_chain.message_id].set_result(message_data)
elif isinstance(message_source, platform_events.GroupMessage):
self.webchat_group_session.resp_waiters[message_source.message_chain.message_id].set_result(message_data)
return message_data.model_dump()
def register_listener(
self,
event_type: typing.Type[platform_events.Event],
func: typing.Callable[
[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], typing.Awaitable[None]
],
):
"""注册事件监听器"""
self.listeners[event_type] = func
def unregister_listener(
self,
event_type: typing.Type[platform_events.Event],
func: typing.Callable[
[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], typing.Awaitable[None]
],
):
"""取消注册事件监听器"""
del self.listeners[event_type]
async def is_muted(self, group_id: int) -> bool:
return False
async def run_async(self):
"""运行适配器"""
await self.logger.info('WebChat调试适配器已启动')
try:
while True:
await asyncio.sleep(1)
except asyncio.CancelledError:
await self.logger.info('WebChat调试适配器已停止')
raise
async def kill(self):
"""停止适配器"""
await self.logger.info('WebChat调试适配器正在停止')
async def send_webchat_message(
self, pipeline_uuid: str, session_type: str, message_chain_obj: typing.List[dict]
) -> dict:
"""发送调试消息到流水线"""
if session_type == 'person':
use_session = self.webchat_person_session
else:
use_session = self.webchat_group_session
message_chain = platform_message.MessageChain.parse_obj(message_chain_obj)
message_id = len(use_session.get_message_list(pipeline_uuid)) + 1
use_session.get_message_list(pipeline_uuid).append(
WebChatMessage(
id=message_id,
role='user',
content=str(message_chain),
message_chain=message_chain_obj,
timestamp=datetime.now().isoformat(),
)
)
message_chain.insert(0, platform_message.Source(id=message_id, time=datetime.now().timestamp()))
if session_type == 'person':
sender = platform_entities.Friend(id='webchatperson', nickname='User')
event = platform_events.FriendMessage(
sender=sender, message_chain=message_chain, time=datetime.now().timestamp()
)
else:
group = platform_entities.Group(
id='webchatgroup', name='Group', permission=platform_entities.Permission.Member
)
sender = platform_entities.GroupMember(
id='webchatperson',
member_name='User',
group=group,
permission=platform_entities.Permission.Member,
)
event = platform_events.GroupMessage(
sender=sender, message_chain=message_chain, time=datetime.now().timestamp()
)
self.ap.platform_mgr.webchat_proxy_bot.bot_entity.use_pipeline_uuid = pipeline_uuid
if event.__class__ in self.listeners:
await self.listeners[event.__class__](event, self)
# set waiter
waiter = asyncio.Future[WebChatMessage]()
use_session.resp_waiters[message_id] = waiter
waiter.add_done_callback(lambda future: use_session.resp_waiters.pop(message_id))
resp_message = await waiter
resp_message.id = len(use_session.get_message_list(pipeline_uuid)) + 1
use_session.get_message_list(pipeline_uuid).append(resp_message)
return resp_message.model_dump()
def get_webchat_messages(self, pipeline_uuid: str, session_type: str) -> list[dict]:
"""获取调试消息历史"""
if session_type == 'person':
return [message.model_dump() for message in self.webchat_person_session.get_message_list(pipeline_uuid)]
else:
return [message.model_dump() for message in self.webchat_group_session.get_message_list(pipeline_uuid)]