Files
chatgpt-on-wechat/bridge/agent_event_handler.py

126 lines
4.0 KiB
Python

"""
Agent Event Handler - Handles agent events and thinking process output
"""
from common import const
from common.log import logger
# Cap intermediate thinking messages on weixin to stay within send quota.
WEIXIN_THINKING_INSTANT_MAX = 7
class AgentEventHandler:
"""
Handles agent events and optionally sends intermediate messages to channel
"""
def __init__(self, context=None, original_callback=None):
self.context = context
self.original_callback = original_callback
self.channel = None
if context:
self.channel = context.kwargs.get("channel") if hasattr(context, "kwargs") else None
self.current_content = ""
self.turn_number = 0
channel_type = ""
if context and hasattr(context, "kwargs"):
channel_type = context.kwargs.get("channel_type", "") or ""
self._is_weixin = channel_type == const.WEIXIN
self._thinking_sent_count = 0
self._merged_buf: list[str] = []
def handle_event(self, event):
event_type = event.get("type")
data = event.get("data", {})
if event_type == "turn_start":
self._handle_turn_start(data)
elif event_type == "message_update":
self._handle_message_update(data)
elif event_type == "message_end":
self._handle_message_end(data)
elif event_type == "reasoning_update":
pass
elif event_type == "tool_execution_start":
self._handle_tool_execution_start(data)
elif event_type == "tool_execution_end":
self._handle_tool_execution_end(data)
elif event_type == "agent_end":
self._handle_agent_end(data)
if self.original_callback:
self.original_callback(event)
def _handle_turn_start(self, data):
self.turn_number = data.get("turn", 0)
self.current_content = ""
def _handle_message_update(self, data):
delta = data.get("delta", "")
self.current_content += delta
def _handle_message_end(self, data):
tool_calls = data.get("tool_calls", [])
if tool_calls:
if self.current_content.strip():
logger.info(f"💭 {self.current_content.strip()[:200]}{'...' if len(self.current_content) > 200 else ''}")
self._send_to_channel(self.current_content.strip())
else:
if self.current_content.strip():
logger.debug(f"💬 {self.current_content.strip()[:200]}{'...' if len(self.current_content) > 200 else ''}")
# Drain weixin buffer before final reply leaves chat_channel
self._flush_merged_now()
self.current_content = ""
def _handle_agent_end(self, data):
self._flush_merged_now()
def _handle_tool_execution_start(self, data):
pass
def _handle_tool_execution_end(self, data):
pass
def _send_to_channel(self, message):
if self.context and self.context.get("on_event"):
return
if not self.channel:
return
if not self._is_weixin:
self._do_send(message)
return
if self._thinking_sent_count < WEIXIN_THINKING_INSTANT_MAX:
self._do_send(message)
self._thinking_sent_count += 1
return
self._merged_buf.append(message)
def _flush_merged_now(self):
if not self._merged_buf:
return
merged = "\n\n".join(self._merged_buf)
count = len(self._merged_buf)
self._merged_buf = []
logger.debug(f"[AgentEventHandler] Flushing {count} merged thinking msgs, len={len(merged)}")
self._do_send(merged)
self._thinking_sent_count += 1
def _do_send(self, message):
try:
from bridge.reply import Reply, ReplyType
reply = Reply(ReplyType.TEXT, message)
self.channel._send(reply, self.context)
except Exception as e:
logger.debug(f"[AgentEventHandler] Failed to send to channel: {e}")
def log_summary(self):
pass