329 lines
12 KiB
Python
329 lines
12 KiB
Python
"""
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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 django.apps import apps
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from farm_data.models import SensorData
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from rag.api_provider import get_chat_client
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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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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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"از داده های خاک، مرحله رشد و خروجی بهینه ساز شبیه سازی برای ساخت توصیه کودهی استفاده کن. "
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"اگر بلوک [خروجی بهینه ساز شبیه سازی] وجود داشت، همان را مرجع اصلی فرمول، مقدار، روش مصرف و اعتبار قرار بده. "
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"پاسخ فقط JSON معتبر با کلید sections باشد."
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)
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def _get_optimizer():
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return apps.get_app_config("crop_simulation").get_recommendation_optimizer()
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def _unique_items(items: list[str]) -> list[str]:
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seen = set()
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output = []
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for item in items:
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normalized = (item or "").strip()
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if not normalized or normalized in seen:
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continue
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seen.add(normalized)
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output.append(normalized)
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return output
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def _find_section(sections: list[dict], section_type: str) -> dict | None:
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for section in sections:
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if isinstance(section, dict) and section.get("type") == section_type:
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return section
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return None
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def _build_fertilization_fallback(*, optimized_result: dict | None) -> dict:
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if optimized_result:
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recommended = optimized_result["recommended_strategy"]
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list_items = [
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f"دوز پیشنهادی: {recommended['amount_kg_per_ha']} کیلوگرم در هکتار",
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f"روش مصرف: {recommended['application_method']}",
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f"پنجره اجرا: {recommended['validity_period']}",
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]
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warning_text = "قبل از اختلاط یا محلول سازی، سازگاری کود با آب و شرایط مزرعه بررسی شود."
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return {
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"sections": [
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{
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"type": "recommendation",
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"title": "برنامه کودهی بهینه",
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"icon": "leaf",
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"content": (
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f"سناریوی {recommended['label']} برای این مزرعه مناسب تر ارزیابی شد."
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),
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"fertilizerType": recommended["fertilizer_type"],
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"amount": f"{recommended['amount_kg_per_ha']} کیلوگرم در هکتار",
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"applicationMethod": recommended["application_method"],
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"timing": recommended["timing"],
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"validityPeriod": recommended["validity_period"],
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"expandableExplanation": " ".join(recommended.get("reasoning", [])),
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},
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{
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"type": "list",
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"title": "نکات اجرایی و اختلاط",
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"icon": "list",
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"items": _unique_items(list_items),
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},
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{
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"type": "warning",
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"title": "هشدار کودهی",
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"icon": "alert-triangle",
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"content": warning_text,
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},
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]
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}
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return {
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"sections": [
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{
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"type": "recommendation",
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"title": "برنامه کودهی پیشنهادی",
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"icon": "leaf",
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"content": "پیشنهاد کودهی بر اساس داده های فعلی با قطعیت متوسط آماده شده است.",
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"fertilizerType": "کود کامل متعادل",
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"amount": "پس از پایش دوباره عناصر اصلی تعیین شود",
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"applicationMethod": "ترجیحا همراه آب آبیاری",
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"timing": "صبح زود",
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"validityPeriod": "معتبر برای 5 روز آینده",
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"expandableExplanation": "به دلیل محدود بودن داده های تغذیه ای، تصمیم نهایی باید با پایش مجدد تکمیل شود.",
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},
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{
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"type": "list",
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"title": "نکات اجرایی و اختلاط",
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"icon": "list",
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"items": [
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"قبل از مصرف، EC و pH محلول بررسی شود.",
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"در صورت مشاهده بارش موثر، زمان مصرف بازبینی شود.",
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],
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},
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{
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"type": "warning",
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"title": "هشدار کودهی",
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"icon": "alert-triangle",
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"content": "بدون بررسی دوباره مزرعه از مصرف سنگین کود خودداری شود.",
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},
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]
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}
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def _merge_fertilization_response(
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*,
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parsed_result: dict,
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optimized_result: dict | None,
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) -> dict:
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fallback = _build_fertilization_fallback(optimized_result=optimized_result)
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if not isinstance(parsed_result, dict):
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return fallback
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sections = parsed_result.get("sections")
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if not isinstance(sections, list):
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return fallback
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recommendation = _find_section(sections, "recommendation") or {}
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list_section = _find_section(sections, "list") or {}
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warning_section = _find_section(sections, "warning") or {}
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fallback_recommendation = fallback["sections"][0]
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fallback_list = fallback["sections"][1]
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fallback_warning = fallback["sections"][2]
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merged_recommendation = {**recommendation, **fallback_recommendation}
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merged_recommendation["content"] = recommendation.get("content") or fallback_recommendation["content"]
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merged_recommendation["title"] = recommendation.get("title") or fallback_recommendation["title"]
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merged_recommendation["expandableExplanation"] = (
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recommendation.get("expandableExplanation")
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or fallback_recommendation["expandableExplanation"]
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)
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merged_list = {
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**fallback_list,
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**list_section,
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"items": _unique_items(
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list(list_section.get("items", [])) + list(fallback_list["items"])
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)[:5],
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}
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merged_warning = {
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**fallback_warning,
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**warning_section,
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"content": warning_section.get("content") or fallback_warning["content"],
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}
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return {"sections": [merged_recommendation, merged_list, merged_warning]}
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def get_fertilization_recommendation(
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farm_uuid: str | None = None,
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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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sensor_uuid: str | None = None,
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) -> dict:
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"""
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توصیه کودهی برای یک مزرعه.
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از RAG با پایگاه دانش fertilization استفاده میکند.
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Args:
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farm_uuid: شناسه مزرعه
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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 ساختاریافته برای توصیه کودهی
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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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resolved_farm_uuid = str(farm_uuid or sensor_uuid or "").strip()
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if not resolved_farm_uuid:
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raise ValueError("farm_uuid is required.")
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user_query = query or "توصیه کودهی برای مزرعه من چیست؟"
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sensor = (
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SensorData.objects.select_related("center_location")
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.prefetch_related("plants")
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.filter(farm_uuid=resolved_farm_uuid)
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.first()
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)
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resolved_plant_name = plant_name
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plant = None
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if not resolved_plant_name and sensor is not None:
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plant = sensor.plants.first()
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if plant is not None:
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resolved_plant_name = plant.name
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elif sensor is not None and plant_name:
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plant = sensor.plants.filter(name=plant_name).first() or sensor.plants.first()
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forecasts = []
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optimized_result = None
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if sensor is not None and getattr(sensor, "center_location", None) is not None:
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from weather.models import WeatherForecast
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forecasts = list(
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WeatherForecast.objects.filter(
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location=sensor.center_location,
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forecast_date__isnull=False,
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).order_by("forecast_date")[:7]
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)
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if sensor is not None and plant is not None:
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optimized_result = _get_optimizer().optimize_fertilization(
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sensor=sensor,
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plant=plant,
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forecasts=forecasts,
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growth_stage=growth_stage,
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)
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context = build_rag_context(
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user_query, resolved_farm_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 resolved_plant_name and growth_stage:
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plant_text = build_plant_text(resolved_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 optimized_result is not None:
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extra_parts.append(
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"[خروجی بهینه ساز شبیه سازی]\n"
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+ optimized_result["context_text"]
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)
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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=resolved_farm_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", resolved_farm_uuid, exc)
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result = _build_fertilization_fallback(optimized_result=optimized_result)
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result["error"] = f"خطا در دریافت توصیه: {exc}"
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result["raw_response"] = None
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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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result = _merge_fertilization_response(
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parsed_result=result,
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optimized_result=optimized_result,
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)
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result["raw_response"] = raw
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result["simulation_optimizer"] = optimized_result
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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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