shanxia2.0/backend/app/crud/reagent.py

"""试剂 CRUD（biz_reagent）"""
from __future__ import annotations

import math
from datetime import datetime
from typing import Any, Dict, List, Optional, Tuple

from sqlalchemy import and_, func, or_
from sqlalchemy.orm import Session

from app.core.utils import generate_uuid
from app.models.models import BizReagent


def _row_to_dict(r: BizReagent) -> Dict[str, Any]:
    return {
        "id": r.id,
        "reagentCode": r.reagent_code,
        "reagentName": r.reagent_name,
        "spec": r.spec or "",
        "standardUsage": r.standard_usage or "",
        "unit": r.unit or "",
        "description": r.description or "",
        "tenantNo": r.tenant_no,
        "orderNum": r.order_num if r.order_num is not None else 0,
        "remark": r.remark or "",
        "createTime": r.create_time.strftime("%Y-%m-%d %H:%M:%S") if r.create_time else "",
        "updateTime": r.update_time.strftime("%Y-%m-%d %H:%M:%S") if r.update_time else "",
    }


def list_reagents(
    db: Session,
    *,
    page: int = 1,
    page_size: int = 10,
    keyword: Optional[str] = None,
    tenant_no: Optional[str] = None,
) -> Tuple[List[Dict[str, Any]], int]:
    def _filtered():
        q0 = db.query(BizReagent).filter(BizReagent.del_flag == 0)
        if tenant_no:
            q0 = q0.filter(BizReagent.tenant_no == tenant_no)
        kw = (keyword or "").strip()
        if kw:
            like = f"%{kw}%"
            q0 = q0.filter(
                or_(
                    BizReagent.reagent_code.like(like),
                    BizReagent.reagent_name.like(like),
                )
            )
        return q0

    total = _filtered().order_by(None).with_entities(func.count(BizReagent.id)).scalar() or 0
    page = max(1, page)
    page_size = min(max(1, page_size), 100)
    rows = (
        _filtered()
        .order_by(BizReagent.create_time.desc())
        .offset((page - 1) * page_size)
        .limit(page_size)
        .all()
    )
    return [_row_to_dict(x) for x in rows], int(total)


def get_reagent(db: Session, reagent_id: str) -> Optional[BizReagent]:
    return (
        db.query(BizReagent)
        .filter(and_(BizReagent.id == reagent_id, BizReagent.del_flag == 0))
        .first()
    )


def reagent_code_exists(db: Session, code: str, tenant_no: str, exclude_id: Optional[str] = None) -> bool:
    q = db.query(BizReagent).filter(
        and_(BizReagent.reagent_code == code.strip(), BizReagent.tenant_no == tenant_no, BizReagent.del_flag == 0)
    )
    if exclude_id:
        q = q.filter(BizReagent.id != exclude_id)
    return q.first() is not None


def create_reagent(
    db: Session,
    *,
    reagent_code: str,
    reagent_name: str,
    spec: Optional[str] = None,
    standard_usage: Optional[str] = None,
    unit: Optional[str] = None,
    description: Optional[str] = None,
    tenant_no: str = "zkxw",
    order_num: Optional[int] = None,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
) -> BizReagent:
    rc = (reagent_code or "").strip()
    if not rc:
        raise ValueError("试剂编码不能为空")
    if reagent_code_exists(db, rc, tenant_no):
        raise ValueError("试剂编码已存在")
    obj = BizReagent(
        id=generate_uuid(),
        reagent_code=rc,
        reagent_name=(reagent_name or "").strip() or rc,
        spec=(spec or "").strip() or None,
        standard_usage=(standard_usage or "").strip() or None,
        unit=(unit or "").strip() or None,
        description=(description or "").strip() or None,
        tenant_no=tenant_no,
        order_num=order_num if order_num is not None else 0,
        remark=(remark or "").strip() or None,
        create_by=user_id,
        create_dept_id="",
        create_time=datetime.now(),
        update_by=user_id,
        update_time=datetime.now(),
        del_flag=0,
    )
    db.add(obj)
    db.commit()
    db.refresh(obj)
    return obj


def update_reagent(
    db: Session,
    reagent_id: str,
    *,
    reagent_code: Optional[str] = None,
    reagent_name: Optional[str] = None,
    spec: Optional[str] = None,
    standard_usage: Optional[str] = None,
    unit: Optional[str] = None,
    description: Optional[str] = None,
    order_num: Optional[int] = None,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
) -> BizReagent:
    obj = get_reagent(db, reagent_id)
    if not obj:
        raise ValueError("试剂不存在")
    if reagent_code is not None:
        new_code = reagent_code.strip()
        if not new_code:
            raise ValueError("试剂编码不能为空")
        if new_code != obj.reagent_code and reagent_code_exists(db, new_code, obj.tenant_no, exclude_id=reagent_id):
            raise ValueError("试剂编码已存在")
        obj.reagent_code = new_code
    if reagent_name is not None:
        obj.reagent_name = (reagent_name or "").strip() or obj.reagent_name
    if spec is not None:
        obj.spec = (spec or "").strip() or None
    if standard_usage is not None:
        obj.standard_usage = (standard_usage or "").strip() or None
    if unit is not None:
        obj.unit = (unit or "").strip() or None
    if description is not None:
        obj.description = (description or "").strip() or None
    if order_num is not None:
        obj.order_num = order_num
    if remark is not None:
        obj.remark = (remark or "").strip() or None
    obj.update_by = user_id
    obj.update_time = datetime.now()
    db.add(obj)
    db.commit()
    db.refresh(obj)
    return obj


def soft_delete_reagent(db: Session, reagent_id: str) -> None:
    obj = get_reagent(db, reagent_id)
    if not obj:
        raise ValueError("试剂不存在")
    obj.del_flag = 1
    obj.update_time = datetime.now()
    db.add(obj)
    db.commit()


def total_pages(total: int, page_size: int) -> int:
    if total <= 0:
        return 0
    return int(math.ceil(total / float(page_size)))