"""实验室自检项目 CRUD"""
from __future__ import annotations

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 BizQcLabTestItem


def _row_to_dict(r: BizQcLabTestItem) -> Dict[str, Any]:
    return {
        "id": r.id,
        "itemCode": r.item_code,
        "itemName": r.item_name,
        "description": r.description or "",
        "status": r.status or "1",
        "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 item_code_exists(
    db: Session, code: str, tenant_no: str, exclude_id: Optional[str] = None
) -> bool:
    c = (code or "").strip()
    if not c:
        return False
    q = db.query(BizQcLabTestItem).filter(
        BizQcLabTestItem.item_code == c,
        BizQcLabTestItem.tenant_no == tenant_no,
        BizQcLabTestItem.del_flag == 0,
    )
    if exclude_id:
        q = q.filter(BizQcLabTestItem.id != exclude_id)
    return q.first() is not None


def list_lab_items(
    db: Session,
    *,
    page: int = 1,
    page_size: int = 10,
    keyword: Optional[str] = None,
    status: Optional[str] = None,
    tenant_no: Optional[str] = None,
    user_info=None,
) -> Tuple[List[Dict[str, Any]], int]:
    def _filtered():
        q0 = db.query(BizQcLabTestItem).filter(BizQcLabTestItem.del_flag == 0)
        if tenant_no:
            q0 = q0.filter(BizQcLabTestItem.tenant_no == tenant_no)
        kw = (keyword or "").strip()
        if kw:
            like = f"%{kw}%"
            q0 = q0.filter(
                or_(BizQcLabTestItem.item_code.like(like), BizQcLabTestItem.item_name.like(like))
            )
        st = (status or "").strip()
        if st in ("0", "1"):
            q0 = q0.filter(BizQcLabTestItem.status == st)
        if user_info:
            from app.core.data_scope import apply_data_scope
            q0 = apply_data_scope(q0, BizQcLabTestItem, user_info, db, tenant_no)
        return q0

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


def list_active_lab_items(db: Session, tenant_no: str, *, user_info=None) -> List[Dict[str, Any]]:
    q = db.query(BizQcLabTestItem).filter(
        BizQcLabTestItem.tenant_no == tenant_no,
        BizQcLabTestItem.del_flag == 0,
        BizQcLabTestItem.status == "1",
    )
    if user_info:
        from app.core.data_scope import apply_data_scope
        q = apply_data_scope(q, BizQcLabTestItem, user_info, db, tenant_no)
    rows = q.order_by(BizQcLabTestItem.order_num.asc(), BizQcLabTestItem.create_time.desc()).all()
    return [_row_to_dict(x) for x in rows]


def get_lab_item(
    db: Session, row_id: str, tenant_no: Optional[str] = None
) -> Optional[BizQcLabTestItem]:
    q = db.query(BizQcLabTestItem).filter(
        BizQcLabTestItem.id == row_id, BizQcLabTestItem.del_flag == 0
    )
    if tenant_no:
        q = q.filter(BizQcLabTestItem.tenant_no == tenant_no)
    return q.first()


def create_lab_item(
    db: Session,
    *,
    item_code: str,
    item_name: str,
    description: Optional[str] = None,
    status: str = "1",
    tenant_no: str,
    order_num: Optional[int] = None,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
    create_dept_id: str = "",
) -> BizQcLabTestItem:
    code = (item_code or "").strip()
    if not code:
        raise ValueError("项目编码不能为空")
    if item_code_exists(db, code, tenant_no):
        raise ValueError("项目编码已存在")
    name = (item_name or "").strip()
    if not name:
        raise ValueError("项目名称不能为空")
    st = (status or "1").strip()
    if st not in ("0", "1"):
        raise ValueError("状态无效")
    obj = BizQcLabTestItem(
        id=generate_uuid(),
        item_code=code,
        item_name=name,
        description=(description or "").strip() or None,
        status=st,
        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_dept_id or "",
        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_lab_item(
    db: Session,
    row_id: str,
    *,
    item_code: Optional[str] = None,
    item_name: Optional[str] = None,
    description: Optional[str] = None,
    status: Optional[str] = None,
    order_num: Optional[int] = None,
    remark: Optional[str] = None,
    user_id: Optional[str] = None,
    tenant_no: Optional[str] = None,
) -> BizQcLabTestItem:
    obj = get_lab_item(db, row_id, tenant_no=tenant_no)
    if not obj:
        raise ValueError("项目不存在")
    if item_code is not None:
        code = item_code.strip()
        if not code:
            raise ValueError("项目编码不能为空")
        if code != obj.item_code and item_code_exists(db, code, obj.tenant_no, exclude_id=row_id):
            raise ValueError("项目编码已存在")
        obj.item_code = code
    if item_name is not None:
        name = (item_name or "").strip()
        if not name:
            raise ValueError("项目名称不能为空")
        obj.item_name = name
    if description is not None:
        obj.description = (description or "").strip() or None
    if status is not None:
        st = status.strip()
        if st not in ("0", "1"):
            raise ValueError("状态无效")
        obj.status = st
    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_lab_item(db: Session, row_id: str, tenant_no: Optional[str] = None) -> None:
    obj = get_lab_item(db, row_id, tenant_no=tenant_no)
    if not obj:
        raise ValueError("项目不存在")
    obj.del_flag = 1
    obj.update_time = datetime.now()
    db.add(obj)
    db.commit()