from typing import Any from fastapi import UploadFile from sqlalchemy import func, select from sqlalchemy.ext.asyncio import AsyncSession from app.core.base_schema import AuthSchema, PageResultSchema, ImportResultSchema from app.core.exceptions import CustomException from app.core.logger import logger from app.utils.common_util import search_to_dict from app.utils.excel_util import ExcelUtil from .crud import BreedingEnvironmentConditionCRUD from .model import EnvironmentConditionModel from .schema import ( EnvironmentConditionCreateSchema, EnvironmentConditionOutSchema, EnvironmentConditionQueryParam, EnvironmentConditionUpdateSchema, ) from app.core.base_crud import assert_parents_exist from app.api.v1.module_bre.site.crud import BreedingSiteCRUD from app.api.v1.module_bre.site.model import BreedingSiteModel def _is_blank(v: Any) -> bool: return v is None or (isinstance(v, str) and v.strip() == "") def _none_if_blank(v: Any) -> Any: if _is_blank(v): return None return str(v).strip() if isinstance(v, str) else v def _to_int(v: Any) -> int | None: if _is_blank(v): return None try: return int(float(v)) except (TypeError, ValueError): return None def _to_decimal(v: Any): if _is_blank(v): return None try: return float(v) except (TypeError, ValueError): return None class EnvironmentConditionService: """环境因子 模块服务层""" def __init__(self, auth: AuthSchema, db: AsyncSession) -> None: self.auth = auth self.db = db async def _attach_fk_labels(self, items: list[EnvironmentConditionOutSchema]) -> None: if not items: return site_ids = {getattr(it, "site_id") for it in items if getattr(it, "site_id")} if site_ids: refs = await BreedingSiteCRUD(self.auth, self.db).get_list(search={"id": ("in", list(site_ids))}) ref_map = {r.id: getattr(r, "site_name") for r in refs} for it in items: it.site_name = ref_map.get(getattr(it, "site_id")) async def _assert_site_year_unique( self, site_id: int | None, year: int | None, exclude_id: int | None = None ) -> None: """(site_id, year) 唯一校验 —— 与 DB UNIQUE(uq_env_site_year) 对齐，含软删行。""" if site_id is None or year is None: return conditions = [ EnvironmentConditionModel.site_id == site_id, EnvironmentConditionModel.year == year, ] if exclude_id is not None: conditions.append(EnvironmentConditionModel.id != exclude_id) result = await self.db.execute(select(func.count()).select_from(EnvironmentConditionModel).where(*conditions)) if result.scalar() or 0: raise CustomException( msg=f"该基地({site_id})在 {year} 年的环境记录已存在", status_code=409 ) async def detail(self, id: int) -> EnvironmentConditionOutSchema: obj = await BreedingEnvironmentConditionCRUD(self.auth, self.db).get(id=id) if not obj: raise CustomException(msg="该环境记录不存在") out = EnvironmentConditionOutSchema.model_validate(obj) await self._attach_fk_labels([out]) return out async def get_list( self, search: EnvironmentConditionQueryParam | None = None, order_by: list[dict[str, str]] | None = None, ) -> list[EnvironmentConditionOutSchema]: obj_list = await BreedingEnvironmentConditionCRUD(self.auth, self.db).get_list( search=search_to_dict(search), order_by=order_by ) outs = [EnvironmentConditionOutSchema.model_validate(obj) for obj in obj_list] await self._attach_fk_labels(outs) return outs async def page( self, page_no: int, page_size: int, search: EnvironmentConditionQueryParam | None = None, order_by: list[dict[str, str]] | None = None, ) -> PageResultSchema[EnvironmentConditionOutSchema]: offset = (page_no - 1) * page_size result = await BreedingEnvironmentConditionCRUD(self.auth, self.db).page( offset=offset, limit=page_size, order_by=order_by or [{"id": "asc"}], search=search_to_dict(search, {}), out_schema=EnvironmentConditionOutSchema, ) await self._attach_fk_labels(result.items) return result async def create(self, data: EnvironmentConditionCreateSchema) -> EnvironmentConditionOutSchema: await assert_parents_exist(self.db, [(BreedingSiteModel, data.site_id, '试验基地')]) await self._assert_site_year_unique(data.site_id, data.year) obj = await BreedingEnvironmentConditionCRUD(self.auth, self.db).create(data=data) out = EnvironmentConditionOutSchema.model_validate(obj) await self._attach_fk_labels([out]) return out async def update(self, id: int, data: EnvironmentConditionUpdateSchema) -> EnvironmentConditionOutSchema: obj = await BreedingEnvironmentConditionCRUD(self.auth, self.db).get(id=id) if not obj: raise CustomException(msg="更新失败，该环境记录不存在") await assert_parents_exist(self.db, [(BreedingSiteModel, data.site_id, '试验基地')]) await self._assert_site_year_unique(data.site_id, data.year, exclude_id=id) obj = await BreedingEnvironmentConditionCRUD(self.auth, self.db).update(id=id, data=data) out = EnvironmentConditionOutSchema.model_validate(obj) await self._attach_fk_labels([out]) return out async def delete(self, ids: list[int]) -> None: if not ids: raise CustomException(msg="删除失败，删除对象不能为空") objs = await BreedingEnvironmentConditionCRUD(self.auth, self.db).get_list(search={"id": ("in", ids)}) obj_map = {o.id: o for o in objs} for id_ in ids: if id_ not in obj_map: raise CustomException(msg="删除失败，该环境记录不存在") await BreedingEnvironmentConditionCRUD(self.auth, self.db).delete(ids=ids) async def list_options(self) -> list[dict[str, Any]]: """供前端下拉选择使用：返回 [{value, label}]。""" obj_list = await BreedingEnvironmentConditionCRUD(self.auth, self.db).get_list(order_by=[{"id": "asc"}]) return [{"value": o.id, "label": f"基地{o.site_id}·{o.year}"} for o in obj_list] @staticmethod def batch_export(obj_list: list[dict[str, Any]]) -> bytes: mapping_dict = { "site_name": "试验基地", "year": "年份", "chilling_hours": "需冷量(小时)", "growing_degree_days": "生长度日GDD", "rainfall_mm": "降水量(mm)", "temp_avg": "年均温度(℃)", "soil_moisture": "土壤湿度", "source": "数据来源", "remark": "备注", "created_time": "创建时间", "created_by": "创建者", } data = [dict(item) for item in obj_list] for item in data: creator = item.get("created_by") item["created_by"] = creator.get("name", "未知") if isinstance(creator, dict) else "未知" return ExcelUtil.export_list2excel(list_data=data, mapping_dict=mapping_dict) async def batch_import(self, file: UploadFile, update_support: bool = False) -> ImportResultSchema: header_dict = { "试验基地": "site_id", "年份": "year", "需冷量(小时)": "chilling_hours", "生长度日GDD": "growing_degree_days", "降水量(mm)": "rainfall_mm", "年均温度(℃)": "temp_avg", "土壤湿度": "soil_moisture", "数据来源": "source", "备注": "remark", } try: contents = await file.read() rows = ExcelUtil.read_excel_to_dicts(contents) await file.close() if not rows: raise CustomException(msg="导入文件为空") missing_headers = [h for h in header_dict if h not in rows[0]] if missing_headers: raise CustomException(msg=f"导入文件缺少必要的列: {', '.join(missing_headers)}") site_refs = await BreedingSiteCRUD(self.auth, self.db).get_list(order_by=[{"id": "asc"}]) site_map = {getattr(r, "site_name"): r.id for r in site_refs} error_msgs: list[str] = [] success_count = 0 crud = BreedingEnvironmentConditionCRUD(self.auth, self.db) for i, row in enumerate(rows, start=1): try: fields = { "site_id": site_map.get(str(row.get("site_id")).strip()) if not _is_blank(row.get("site_id")) else None, "year": _to_int(row.get("year")), "chilling_hours": _to_decimal(row.get("chilling_hours")), "growing_degree_days": _to_decimal(row.get("growing_degree_days")), "rainfall_mm": _to_decimal(row.get("rainfall_mm")), "temp_avg": _to_decimal(row.get("temp_avg")), "soil_moisture": _to_decimal(row.get("soil_moisture")), "source": _none_if_blank(row.get("source")), "remark": _none_if_blank(row.get("remark")), } if fields["site_id"] is None or fields["year"] is None: raise ValueError("试验基地/年份不能为空") await self._assert_site_year_unique(fields["site_id"], fields["year"]) create_data = EnvironmentConditionCreateSchema(**fields) await crud.create(data=create_data) success_count += 1 except Exception as e: error_msgs.append(f"第{i}行: {e!s}") continue return ImportResultSchema( valid_count=success_count, invalid_count=len(error_msgs), message_list=error_msgs, ) except Exception as e: logger.error(f"批量导入环境因子失败: {e!s}") raise CustomException(msg=f"导入失败: {e!s}") @staticmethod def import_template_download() -> bytes: header_list = [ "试验基地", "年份", "需冷量(小时)", "生长度日GDD", "降水量(mm)", "年均温度(℃)", "土壤湿度", "数据来源", "备注", ] selector_header_list = [] option_list = [] return ExcelUtil.get_excel_template( header_list=header_list, selector_header_list=selector_header_list, option_list=option_list, )