2026-03-19 22:54:29 +03:30
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"""
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سرویس توصیه کودهی — بدون API، قابل فراخوانی از سایر سرویسها
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از RAG با پایگاه دانش fertilization و لحن مخصوص کودهی استفاده میکند.
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"""
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import json
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import logging
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from rag.api_provider import get_chat_client
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2026-04-24 02:12:06 +03:30
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from rag.chat import (
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_complete_audit_log,
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_create_audit_log,
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_fail_audit_log,
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_load_service_tone,
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build_rag_context,
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)
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2026-03-22 03:08:27 +03:30
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from rag.config import load_rag_config, RAGConfig, get_service_config
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from rag.user_data import build_plant_text
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logger = logging.getLogger(__name__)
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KB_NAME = "fertilization"
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SERVICE_ID = "fertilization"
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DEFAULT_FERTILIZATION_PROMPT = (
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"بر اساس دادههای خاک (NPK، pH)، مشخصات گیاه، مرحله رشد و پایگاه دانش کودهی، "
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"یک توصیه کودهی دقیق بده. "
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2026-03-21 23:50:36 +03:30
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"پاسخ حتماً به فرمت JSON با ساختار زیر باشد:\n"
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'{\n'
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' "plan": {\n'
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' "npkRatio": "<str>",\n'
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' "amountPerHectare": "<str>",\n'
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' "applicationMethod": "<str>",\n'
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' "applicationInterval": "<str>",\n'
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' "reasoning": "<str>"\n'
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' }\n'
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'}\n'
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"فقط JSON خروجی بده، بدون توضیح اضافی. "
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"مقادیر را بر اساس شرایط واقعی خاک و گیاه محاسبه کن."
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2026-03-19 22:54:29 +03:30
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)
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def get_fertilization_recommendation(
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sensor_uuid: str,
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plant_name: str | None = None,
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growth_stage: str | None = None,
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query: str | None = None,
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config: RAGConfig | None = None,
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limit: int = 8,
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) -> dict:
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"""
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توصیه کودهی برای یک سنسور (کاربر).
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از RAG با پایگاه دانش fertilization استفاده میکند.
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Args:
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sensor_uuid: شناسه سنسور کاربر
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plant_name: نام گیاه (برای بارگذاری مشخصات از جدول Plant)
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growth_stage: مرحله رشد گیاه
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query: سوال اختیاری
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config: تنظیمات RAG
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limit: تعداد چانکهای بازیابیشده
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Returns:
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dict با کلیدهای fertilizer_needed, fertilizer_type, amount_kg_per_hectare, reason, npk_status, raw_response
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"""
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cfg = config or load_rag_config()
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service = get_service_config(SERVICE_ID, cfg)
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service_cfg = RAGConfig(
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embedding=cfg.embedding,
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qdrant=cfg.qdrant,
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chunking=cfg.chunking,
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llm=service.llm,
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knowledge_bases=cfg.knowledge_bases,
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services=cfg.services,
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chromadb=cfg.chromadb,
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)
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client = get_chat_client(service_cfg)
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model = service.llm.model
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user_query = query or "توصیه کودهی برای مزرعه من چیست؟"
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context = build_rag_context(
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user_query, sensor_uuid, config=cfg, limit=limit, kb_name=KB_NAME, service_id=SERVICE_ID,
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)
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extra_parts: list[str] = []
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if plant_name and growth_stage:
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plant_text = build_plant_text(plant_name, growth_stage)
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if plant_text:
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extra_parts.append("[اطلاعات گیاه]\n" + plant_text)
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if extra_parts:
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context = "\n\n---\n\n".join(extra_parts) + ("\n\n---\n\n" + context if context else "")
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tone = _load_service_tone(service, cfg)
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system_parts = [tone] if tone else []
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if service.system_prompt:
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system_parts.append(service.system_prompt)
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system_parts.append(DEFAULT_FERTILIZATION_PROMPT)
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if context:
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system_parts.append("\n\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": user_query},
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]
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audit_log = _create_audit_log(
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farm_uuid=sensor_uuid,
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service_id=SERVICE_ID,
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model=model,
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query=user_query,
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system_prompt=system_content,
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messages=messages,
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)
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try:
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response = client.chat.completions.create(
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model=model,
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messages=messages,
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)
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raw = response.choices[0].message.content.strip()
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except Exception as exc:
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logger.error("Fertilization recommendation error for %s: %s", sensor_uuid, exc)
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result = {
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"fertilizer_needed": None,
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"fertilizer_type": None,
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"amount_kg_per_hectare": None,
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"reason": f"خطا در دریافت توصیه: {exc}",
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"npk_status": None,
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"raw_response": None,
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}
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_fail_audit_log(
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audit_log,
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str(exc),
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response_text=json.dumps(result, ensure_ascii=False, default=str),
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)
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return result
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try:
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cleaned = raw
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if cleaned.startswith("```"):
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cleaned = cleaned.strip("`").removeprefix("json").strip()
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result = json.loads(cleaned)
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except (json.JSONDecodeError, ValueError):
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result = {
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"plan": {
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"reasoning": raw,
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},
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}
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result["raw_response"] = raw
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_complete_audit_log(
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audit_log,
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json.dumps(result, ensure_ascii=False, default=str),
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)
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return result
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