from models.consultant import Consultant
from schemas.consultant import ConsultantCreate, ConsultantUpdate
from sqlalchemy.orm import Session
def create_consultant(db:Session, obj_in: ConsultantCreate):
    try:
        db_obj = Consultant(**obj_in.model_dump())
        db.add(db_obj)
    except:
        db.rollback()
        return False
    else:
        db.commit()
        return db_obj
# 查询全部可分页（过滤已删除）
def get_consultant_list(
    db: Session,
    page: int = 1,
    page_size: int = 20,
    name: str | None = None,
    phone: str | None = None
):
    page_size = max(1, min(page_size, 100))
    skip = (page - 1) * page_size

    query = db.query(Consultant).filter(Consultant.is_deleted == 0)
    # 有传参数才追加过滤条件
    if name:
        query = query.filter(Consultant.consultant_name.like(f"%{name}%"))
    if phone:
        query = query.filter(Consultant.phone.like(f"%{phone}%"))

    total = query.count()
    items = query.offset(skip).limit(page_size).all()

    return {
        "items": items,
        "total": total,
        "page": page,
        "page_size": page_size
    }



# 根据id查单条
def get_consultant_by_id(db:Session, cid: int):
    return db.query(Consultant).filter(Consultant.id == cid, Consultant.is_deleted == 0 ).first()


# 修改
def update_consultant(db: Session, cid: int, update_data: dict):
    try:
        db_obj = db.query(Consultant).filter(
            Consultant.id == cid,
            Consultant.is_deleted == 0
        ).first()
        if not db_obj:
            return None
        # 循环赋值
        for k, v in update_data.items():
            setattr(db_obj, k, v)
        db.commit()
        db.refresh(db_obj)  # 刷新从数据库拿最新数据（updated_at）
        return db_obj
    except Exception:
        db.rollback()
        return None



# 逻辑删除（只改is_deleted=1）
def delete_consultant(db:Session, cid: int):
    try:
        db_obj = get_consultant_by_id(db, cid)
        if not db_obj:
            return None
        db_obj.is_deleted = 1
    except:
            db.rollback()
            return None
    else:
            db.commit()
            return db_obj