zkxw/backend/app/crud/reagent.py

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

import math
from datetime import datetime
from decimal import Decimal
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, BizReagentStockLog


def _dec(v: Any) -> float:
    if v is None:
        return 0.0
    return float(v)


def _norm_status(v: Any) -> str:
    if v is None:
        return "1"
    if isinstance(v, bool):
        return "1" if v else "0"
    if isinstance(v, (int, float)):
        if int(v) == 0:
            return "0"
        if int(v) == 1:
            return "1"
    s = str(v).strip()
    if s in ("0", "1"):
        return s
    return "1"


def _is_enabled_status(v: Any) -> bool:
    return _norm_status(v) == "1"


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 "",
        "stockQty": _dec(r.stock_qty),
        "warningQty": _dec(r.warning_qty),
        "status": _norm_status(r.status),
        "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,
    user_info=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),
                )
            )
        if user_info:
            from app.core.data_scope import apply_data_scope
            q0 = apply_data_scope(q0, BizReagent, user_info, db, tenant_no)
        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",
    warning_qty: Optional[float] = None,
    status: Optional[str] = None,
    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,
        warning_qty=warning_qty if warning_qty is not None else 0,
        status=_norm_status(status),
        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,
    warning_qty: Optional[float] = None,
    status: 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 warning_qty is not None:
        obj.warning_qty = warning_qty
    if status is not None:
        obj.status = _norm_status(status)
    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")
    if obj.stock_qty is not None and _dec(obj.stock_qty) > 0:
        raise ValueError("该试剂仍有库存，无法删除")
    obj.del_flag = 1
    obj.update_time = datetime.now()
    db.add(obj)
    db.commit()


def stock_in(
    db: Session,
    row_id: str,
    *,
    qty: Decimal,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
    tenant_no: Optional[str] = None,
    operate_time: Optional[datetime] = None,
) -> BizReagent:
    if qty is None or float(qty) <= 0:
        raise ValueError("入库数量必须大于0")
    obj = (
        db.query(BizReagent)
        .filter(BizReagent.id == row_id, BizReagent.del_flag == 0)
        .with_for_update()
        .first()
    )
    if not obj:
        raise ValueError("试剂不存在")
    if tenant_no and obj.tenant_no != tenant_no:
        raise ValueError("试剂不存在")
    if not _is_enabled_status(obj.status):
        raise ValueError(f"试剂「{obj.reagent_name}」已停用，无法入库")
    op_time = operate_time or datetime.now()
    old_stock = obj.stock_qty or 0
    new_stock = old_stock + qty
    obj.stock_qty = new_stock
    obj.update_by = user_id
    obj.update_time = datetime.now()
    db.add(obj)
    log = BizReagentStockLog(
        id=generate_uuid(),
        material_id=obj.id,
        material_code=obj.reagent_code,
        material_name=obj.reagent_name,
        change_type="in",
        change_qty=qty,
        stock_before=old_stock,
        stock_after=new_stock,
        source_type="manual_in",
        tenant_no=obj.tenant_no,
        remark=(remark or "").strip() or None,
        create_by=user_id,
        create_dept_id=obj.create_dept_id or "",
        create_time=op_time,
        update_by=user_id,
        update_time=op_time,
        del_flag=0,
    )
    db.add(log)
    db.commit()
    db.refresh(obj)
    return obj


def batch_stock_in(
    db: Session,
    *,
    items: List[Dict[str, Any]],
    remark: Optional[str] = None,
    tenant_no: str,
    user_id: Optional[str] = None,
    operate_time: Optional[datetime] = None,
) -> int:
    if not items:
        raise ValueError("请至少选择一条试剂")
    op_time = operate_time or datetime.now()
    shared_remark = (remark or "").strip() or None

    try:
        for it in items:
            material_id = (it.get("material_id") or it.get("materialId") or "").strip()
            qty = it.get("qty")
            if not material_id:
                raise ValueError("试剂ID不能为空")
            if qty is None or float(qty) <= 0:
                raise ValueError("入库数量必须大于0")
            qty_dec = Decimal(str(qty))
            line_remark = (it.get("remark") or "").strip()
            log_remark = line_remark or shared_remark or None

            obj = (
                db.query(BizReagent)
                .filter(
                    BizReagent.id == material_id,
                    BizReagent.tenant_no == tenant_no,
                    BizReagent.del_flag == 0,
                )
                .with_for_update()
                .first()
            )
            if not obj:
                raise ValueError("试剂不存在")
            if not _is_enabled_status(obj.status):
                raise ValueError(f"试剂「{obj.reagent_name}」已停用，无法入库")

            old_stock = obj.stock_qty or 0
            new_stock = old_stock + qty_dec
            obj.stock_qty = new_stock
            obj.update_by = user_id
            obj.update_time = datetime.now()
            db.add(obj)

            log = BizReagentStockLog(
                id=generate_uuid(),
                material_id=obj.id,
                material_code=obj.reagent_code,
                material_name=obj.reagent_name,
                change_type="in",
                change_qty=qty_dec,
                stock_before=old_stock,
                stock_after=new_stock,
                source_type="manual_in",
                tenant_no=obj.tenant_no,
                remark=log_remark,
                create_by=user_id,
                create_dept_id=obj.create_dept_id or "",
                create_time=op_time,
                update_by=user_id,
                update_time=op_time,
                del_flag=0,
            )
            db.add(log)
        db.commit()
        return len(items)
    except Exception:
        db.rollback()
        raise


def stock_out(
    db: Session,
    row_id: str,
    *,
    qty: Decimal,
    receiver: Optional[str] = None,
    purpose: Optional[str] = None,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
    tenant_no: Optional[str] = None,
    operate_time: Optional[datetime] = None,
) -> BizReagent:
    if qty is None or float(qty) <= 0:
        raise ValueError("出库数量必须大于0")
    qty_dec = Decimal(str(qty))
    if not (receiver or "").strip():
        raise ValueError("请选择领用人")

    obj = (
        db.query(BizReagent)
        .filter(BizReagent.id == row_id, BizReagent.del_flag == 0)
        .with_for_update()
        .first()
    )
    if not obj:
        raise ValueError("试剂不存在")
    if tenant_no and obj.tenant_no != tenant_no:
        raise ValueError("试剂不存在")
    if not _is_enabled_status(obj.status):
        raise ValueError(f"试剂「{obj.reagent_name}」已停用，无法出库")

    stock_before = obj.stock_qty if obj.stock_qty is not None else Decimal("0")
    if stock_before < qty_dec:
        raise ValueError(
            f"试剂「{obj.reagent_name}」库存不足，当前库存 {stock_before}，需出库 {qty_dec}"
        )

    op_time = operate_time or datetime.now()
    new_stock = stock_before - qty_dec
    obj.stock_qty = new_stock
    obj.update_by = user_id
    obj.update_time = datetime.now()
    db.add(obj)

    log = BizReagentStockLog(
        id=generate_uuid(),
        material_id=obj.id,
        material_code=obj.reagent_code,
        material_name=obj.reagent_name,
        change_type="use",
        change_qty=-qty_dec,
        stock_before=stock_before,
        stock_after=new_stock,
        source_type="manual_out",
        tenant_no=obj.tenant_no,
        receiver=(receiver or "").strip() or None,
        purpose=(purpose or "").strip() or None,
        remark=(remark or "").strip() or None,
        create_by=user_id,
        create_dept_id=obj.create_dept_id or "",
        create_time=op_time,
        update_by=user_id,
        update_time=op_time,
        del_flag=0,
    )
    db.add(log)
    db.commit()
    db.refresh(obj)
    return obj


def batch_stock_out(
    db: Session,
    *,
    items: List[Dict[str, Any]],
    receiver: Optional[str] = None,
    purpose: Optional[str] = None,
    remark: Optional[str] = None,
    tenant_no: str,
    user_id: Optional[str] = None,
    operate_time: Optional[datetime] = None,
) -> int:
    if not items:
        raise ValueError("请至少选择一条试剂")
    if not (receiver or "").strip():
        raise ValueError("请选择领用人")

    op_time = operate_time or datetime.now()
    recv = (receiver or "").strip() or None
    purp = (purpose or "").strip() or None
    shared_remark = (remark or "").strip() or None

    try:
        for it in items:
            material_id = (it.get("material_id") or it.get("materialId") or "").strip()
            qty = it.get("qty")
            if not material_id:
                raise ValueError("试剂ID不能为空")
            if qty is None or float(qty) <= 0:
                raise ValueError("出库数量必须大于0")
            qty_dec = Decimal(str(qty))
            line_remark = (it.get("remark") or "").strip() or shared_remark

            obj = (
                db.query(BizReagent)
                .filter(
                    BizReagent.id == material_id,
                    BizReagent.tenant_no == tenant_no,
                    BizReagent.del_flag == 0,
                )
                .with_for_update()
                .first()
            )
            if not obj:
                raise ValueError("试剂不存在")
            if not _is_enabled_status(obj.status):
                raise ValueError(f"试剂「{obj.reagent_name}」已停用，无法出库")

            stock_before = obj.stock_qty if obj.stock_qty is not None else Decimal("0")
            if stock_before < qty_dec:
                raise ValueError(
                    f"试剂「{obj.reagent_name}」库存不足，当前库存 {stock_before}，需出库 {qty_dec}"
                )

            new_stock = stock_before - qty_dec
            obj.stock_qty = new_stock
            obj.update_by = user_id
            obj.update_time = datetime.now()
            db.add(obj)

            log = BizReagentStockLog(
                id=generate_uuid(),
                material_id=obj.id,
                material_code=obj.reagent_code,
                material_name=obj.reagent_name,
                change_type="use",
                change_qty=-qty_dec,
                stock_before=stock_before,
                stock_after=new_stock,
                source_type="manual_out",
                tenant_no=obj.tenant_no,
                receiver=recv,
                purpose=purp,
                remark=line_remark,
                create_by=user_id,
                create_dept_id=obj.create_dept_id or "",
                create_time=op_time,
                update_by=user_id,
                update_time=op_time,
                del_flag=0,
            )
            db.add(log)
        db.commit()
        return len(items)
    except Exception:
        db.rollback()
        raise


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