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dsProject/dsLightRag/TeacherHelper/Kit/TeacherHelper.py

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import asyncio
import logging
import os
import aiofiles
from openai import AsyncOpenAI
from Config.Config import ALY_LLM_API_KEY, ALY_LLM_BASE_URL, ALY_LLM_MODEL_NAME
# 配置日志
logger = logging.getLogger(__name__)
class LLMClient:
"""
大语言模型客户端封装类提供与LLM的交互功能
"""
def __init__(self, api_key=None, base_url=None, model_name=None, system_prompt=""):
self.api_key = api_key or ALY_LLM_API_KEY
self.base_url = base_url or ALY_LLM_BASE_URL
self.model_name = model_name or ALY_LLM_MODEL_NAME
self.system_prompt = system_prompt
async def get_response(self, query_text: str, knowledge_content: str = "", stream: bool = True):
"""异步获取大模型响应"""
try:
client = AsyncOpenAI(api_key=self.api_key, base_url=self.base_url)
full_query = query_text
if knowledge_content:
full_query = f"选择作答的相应知识内容:{knowledge_content}\n下面是用户提的问题:{query_text}"
completion = await client.chat.completions.create(
model=self.model_name,
messages=[
{'role': 'system', 'content': self.system_prompt},
{'role': 'user', 'content': full_query}
],
stream=stream
)
if stream:
async for chunk in completion:
if chunk and chunk.choices and len(chunk.choices) > 0:
delta = chunk.choices[0].delta
if delta and delta.content and delta.content.strip():
yield delta.content
else:
if completion and completion.choices and len(completion.choices) > 0:
message = completion.choices[0].message
if message and message.content and message.content.strip():
yield message.content
except Exception as e:
logger.error(f"大模型请求异常: {str(e)}")
yield f"处理请求时发生异常: {str(e)}"
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async def save_lesson_plan(content_chunks, output_file, stream_print=False):
"""异步保存教案内容到文件,支持实时打印"""
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try:
output_dir = os.path.dirname(output_file)
if output_dir and not os.path.exists(output_dir):
os.makedirs(output_dir, exist_ok=True)
logger.info(f"创建输出目录: {output_dir}")
async with aiofiles.open(output_file, 'w', encoding='utf-8') as f:
full_content = []
async for chunk in content_chunks:
full_content.append(chunk)
await f.write(chunk)
await f.flush()
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# 实时打印输出内容
if stream_print:
print(chunk, end='', flush=True)
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logger.info(f"教案已保存到: {os.path.abspath(output_file)}")
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return ''.join(full_content), True
except Exception as e:
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logger.error(f"保存教案失败: {str(e)}")
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return None, False
async def generate_gravitation_lesson_plan():
"""生成万有引力教案的异步函数"""
system_prompt = """你是市级骨干教师撰写教案时严格对标“核心素养四维度物理观念、科学思维、探究能力、态度责任并采用“目标—评价—活动”逆向设计模板UbD。活动设计需包含“教师行为+期望的学生行为+评价要点”三列表格。"""
llm_client = LLMClient(system_prompt=system_prompt)
prompt = """请输出“万有引力”第1课时的详案要求
1. 教学重难点用行为动词+知识内容表述
2. 至少1个演示实验+1小组探究+1即时反馈技术如Padlet
3. 时间轴精确到分钟
4. 课后教学反思提示留3条空白供教师手写
格式要求
### 1. 教材与学情分析
### 2. 四维目标(对应核心素养)
### 3. 重难点
### 4. 教学准备(器材+数字资源)
### 5. 教学过程(时间轴表格)
### 6. 板书设计ASCII示意图
### 7. 作业布置(与导学案分层衔接)
### 8. 教学反思提示(空白)
变量
教材版本{人教版八年级下第十章第2节}
学生基础{已学过重力匀速圆周运动}
课时长度{45分钟}"""
async def get_lesson_plan():
async for chunk in llm_client.get_response(prompt, stream=True):
yield chunk
return get_lesson_plan()