Add LLM configuration and update URL routing
- Introduced LLM configuration in rag_config.yaml and corresponding LLMConfig class in config.py. - Updated load_rag_config function to parse LLM settings from the configuration file. - Added new API route for RAG in urls.py to facilitate access to the chat model. - Modified QdrantVectorStore to use query_points method for improved functionality.
This commit is contained in:
@@ -3,6 +3,7 @@
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فاز یک: Qdrant بهعنوان vector store
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"""
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from .chat import chat_rag_stream
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from .chunker import chunk_text, chunk_texts
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from .client import get_qdrant_client
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from .config import load_rag_config
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@@ -12,6 +13,7 @@ from .retrieve import search_with_query
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from .vector_store import QdrantVectorStore
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__all__ = [
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"chat_rag_stream",
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"chunk_text",
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"chunk_texts",
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"embed_single",
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+102
@@ -0,0 +1,102 @@
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"""
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چت RAG با استریم — استفاده از دیتای embed شده کاربر و Avalai API
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"""
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import os
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from pathlib import Path
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from openai import OpenAI
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from .config import load_rag_config, RAGConfig
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from .retrieve import search_with_query
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def _get_chat_client(config: RAGConfig | None) -> OpenAI:
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"""ساخت کلاینت OpenAI برای Avalai Chat API."""
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cfg = config or load_rag_config()
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llm = cfg.llm
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env_var = llm.api_key_env or "AVALAI_API_KEY"
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api_key = os.environ.get(env_var)
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base_url = llm.base_url or os.environ.get(
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"AVALAI_BASE_URL", "https://api.avalai.ir/v1"
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)
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return OpenAI(api_key=api_key, base_url=base_url)
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def _load_tone(config: RAGConfig | None) -> str:
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"""بارگذاری فایل لحن."""
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cfg = config or load_rag_config()
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base = Path(__file__).resolve().parent.parent
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tone_path = base / cfg.tone_file
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if tone_path.exists():
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return tone_path.read_text(encoding="utf-8").strip()
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return ""
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def build_rag_context(query: str, config: RAGConfig | None = None, limit: int = 5) -> str:
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"""
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بازیابی متنهای مرتبط از RAG برای کوئری کاربر.
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"""
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results = search_with_query(query, limit=limit, config=config)
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if not results:
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return ""
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parts = []
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for r in results:
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text = r.get("text", "").strip()
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if text:
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parts.append(text)
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return "\n\n---\n\n".join(parts)
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def chat_rag_stream(
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query: str,
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config: RAGConfig | None = None,
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limit: int = 5,
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system_override: str | None = None,
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):
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"""
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چت RAG با استریم: دیتای embed شده را بازیابی میکند و با LLM جواب میدهد.
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Args:
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query: پیام کاربر
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config: تنظیمات RAG
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limit: تعداد چانکهای بازیابیشده
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system_override: جایگزین system prompt (اختیاری)
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Yields:
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تکتک deltaهای content بهصورت رشته
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"""
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cfg = config or load_rag_config()
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client = _get_chat_client(cfg)
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model = cfg.llm.model
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context = build_rag_context(query, config=cfg, limit=limit)
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if system_override is not None:
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system_content = system_override
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else:
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tone = _load_tone(cfg)
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system_parts = [tone] if tone else []
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system_parts.append(
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"با استفاده از بخش «متنهای مرجع» زیر به سوال کاربر پاسخ بده. "
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"فقط در حد نیاز از مرجع استفاده کن و پاسخ را به زبان کاربر بنویس."
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)
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if context:
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system_parts.append("\n\nمتنهای مرجع:\n" + context)
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system_content = "\n".join(system_parts)
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messages = [
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{"role": "system", "content": system_content},
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{"role": "user", "content": query},
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]
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stream = client.chat.completions.create(
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model=model,
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messages=messages,
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stream=True,
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)
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for chunk in stream:
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delta = chunk.choices[0].delta if chunk.choices else None
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content = delta.content if delta else ""
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if content:
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yield content
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@@ -32,11 +32,19 @@ class ChunkingConfig:
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overlap_tokens: int = 50
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@dataclass
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class LLMConfig:
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model: str = "gpt-4o"
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base_url: str | None = None
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api_key_env: str | None = None
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@dataclass
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class RAGConfig:
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embedding: EmbeddingConfig
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qdrant: QdrantConfig
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chunking: ChunkingConfig
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llm: LLMConfig = field(default_factory=LLMConfig)
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tone_file: str = "config/tone.txt"
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knowledge_base_path: str = "config/knowledge_base"
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user_info_path: str = "config/user_info"
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@@ -82,10 +90,18 @@ def load_rag_config(config_path: str | Path | None = None) -> RAGConfig:
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overlap_tokens=ch.get("overlap_tokens", 50),
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)
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llm_data = data.get("llm", {})
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llm = LLMConfig(
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model=llm_data.get("model", "gpt-4o"),
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base_url=llm_data.get("base_url"),
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api_key_env=llm_data.get("api_key_env"),
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)
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return RAGConfig(
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embedding=embedding,
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qdrant=qdrant,
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chunking=chunking,
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llm=llm,
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tone_file=data.get("tone_file", "config/tone.txt"),
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knowledge_base_path=data.get("knowledge_base_path", "config/knowledge_base"),
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user_info_path=data.get("user_info_path", "config/user_info"),
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@@ -0,0 +1,7 @@
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from django.urls import path
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from .views import ChatView
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urlpatterns = [
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path("chat/", ChatView.as_view()),
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]
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+10
-6
@@ -98,20 +98,24 @@ class QdrantVectorStore:
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) -> list[dict]:
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"""
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جستجوی شباهت بر اساس query vector.
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از query_points استفاده میکند (qdrant-client >= 2.0).
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"""
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results = self.client.search(
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response = self.client.query_points(
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collection_name=self.qdrant.collection_name,
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query_vector=query_vector,
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query=query_vector,
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limit=limit,
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score_threshold=score_threshold,
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)
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points = getattr(response, "points", []) or []
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return [
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{
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"id": str(r.id),
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"score": r.score,
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"text": r.payload.get("text", ""),
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"metadata": {k: v for k, v in r.payload.items() if k != "text"},
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"score": float(r.score) if r.score is not None else 0.0,
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"text": (r.payload or {}).get("text", ""),
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"metadata": {
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k: v for k, v in (r.payload or {}).items() if k != "text"
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},
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}
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for r in results
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for r in points
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]
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@@ -0,0 +1,43 @@
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"""
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ویوهای RAG — چت با استریم
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"""
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from django.http import StreamingHttpResponse
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from rest_framework import status
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from rest_framework.request import Request
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from rest_framework.response import Response
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from rest_framework.views import APIView
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from .chat import chat_rag_stream
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class ChatView(APIView):
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"""
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چت RAG با استریم.
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POST با {"message": "متن سوال"} یا query param message
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"""
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def post(self, request: Request):
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message = request.data.get("message") or request.query_params.get("message")
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if not message or not isinstance(message, str):
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return Response(
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{"code": 400, "msg": "پارامتر message الزامی است."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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message = str(message).strip()
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if not message:
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return Response(
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{"code": 400, "msg": "پیام نباید خالی باشد."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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def generate():
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try:
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for chunk in chat_rag_stream(message):
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yield chunk
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except Exception as e:
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yield f"\n[خطا: {e}]"
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return StreamingHttpResponse(
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generate(),
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content_type="text/plain; charset=utf-8",
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)
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