Files
Bubbles/function_calls/services/chat.py
2025-09-25 11:54:16 +08:00

131 lines
4.4 KiB
Python

"""Chat fallback utilities for Function Call routing."""
from __future__ import annotations
import time
from typing import Optional
from commands.context import MessageContext
def run_chat_fallback(ctx: MessageContext) -> bool:
"""Send a conversational reply using the active chat model.
This is used when no Function Call handler processes the message.
Returns True if a reply was sent successfully.
"""
chat_model = getattr(ctx, "chat", None) or getattr(ctx.robot, "chat", None)
if not chat_model:
if ctx.logger:
ctx.logger.error("聊天兜底失败:没有可用的 chat 模型")
ctx.send_text("抱歉,我现在无法进行对话。")
return False
specific_max_history: Optional[int] = getattr(ctx, "specific_max_history", None)
if getattr(ctx, "is_quoted_image", False):
if not _handle_quoted_image(ctx, chat_model):
return False
return True
prompt = _build_prompt(ctx)
if ctx.logger:
ctx.logger.info(f"闲聊兜底发送给 AI 的内容:\n{prompt}")
try:
answer = chat_model.get_answer(
question=prompt,
wxid=ctx.get_receiver(),
specific_max_history=specific_max_history,
)
except Exception as exc: # pragma: no cover - safety net
if ctx.logger:
ctx.logger.error(f"闲聊兜底调用模型失败: {exc}")
return False
if not answer:
if ctx.logger:
ctx.logger.warning("闲聊兜底返回空响应")
return False
at_list = ctx.msg.sender if ctx.is_group else ""
ctx.send_text(answer, at_list)
return True
def _build_prompt(ctx: MessageContext) -> str:
sender_name = ctx.sender_name
content = ctx.text or ""
if ctx.robot and hasattr(ctx.robot, "xml_processor"):
if ctx.is_group:
msg_data = ctx.robot.xml_processor.extract_quoted_message(ctx.msg)
formatted = ctx.robot.xml_processor.format_message_for_ai(msg_data, sender_name)
else:
msg_data = ctx.robot.xml_processor.extract_private_quoted_message(ctx.msg)
formatted = ctx.robot.xml_processor.format_message_for_ai(msg_data, sender_name)
if formatted:
return formatted
current_time = time.strftime("%H:%M", time.localtime())
return f"[{current_time}] {sender_name}: {content or '[空内容]'}"
def _handle_quoted_image(ctx: MessageContext, chat_model) -> bool:
if ctx.logger:
ctx.logger.info("检测到引用图片,尝试走模型图片理解能力")
from ai_providers.ai_chatgpt import ChatGPT # 避免循环导入
support_vision = False
if isinstance(chat_model, ChatGPT):
support_vision = getattr(chat_model, "support_vision", False)
if not support_vision and hasattr(chat_model, "model"):
model_name = getattr(chat_model, "model", "")
support_vision = model_name in {"gpt-4.1-mini", "gpt-4o"} or "-vision" in model_name
if not support_vision:
ctx.send_text("当前模型不支持图片理解,请联系管理员配置支持视觉的模型。")
return True
import os
temp_dir = "temp/image_cache"
os.makedirs(temp_dir, exist_ok=True)
try:
image_path = ctx.wcf.download_image(
id=ctx.quoted_msg_id,
extra=ctx.quoted_image_extra,
dir=temp_dir,
timeout=30,
)
except Exception as exc: # pragma: no cover - IO 失败
if ctx.logger:
ctx.logger.error(f"图片下载失败: {exc}")
ctx.send_text("抱歉,无法下载图片进行分析。")
return True
if not image_path or not os.path.exists(image_path):
ctx.send_text("抱歉,无法下载图片进行分析。")
return True
prompt = ctx.text.strip() or "请详细描述这张图片"
try:
response = chat_model.get_image_description(image_path, prompt)
ctx.send_text(response)
except Exception as exc: # pragma: no cover - 模型异常
if ctx.logger:
ctx.logger.error(f"图片分析失败: {exc}")
ctx.send_text(f"分析图片时出错: {exc}")
finally:
try:
if os.path.exists(image_path):
os.remove(image_path)
except OSError:
if ctx.logger:
ctx.logger.warning(f"清理临时图片失败: {image_path}")
return True