from typing import Sequence

from sqlalchemy import Select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy_crud_plus import CRUDPlus

from backend.app.{{ app_name }}.model import {{ class_name }}
from backend.app.{{ app_name }}.schema.{{ filename }} import Create{{ schema_name }}Param, Update{{ schema_name }}Param


class CRUD{{ class_name }}(CRUDPlus[{{ class_name }}]):
    async def get(self, db: AsyncSession, pk: int) -> {{ class_name }} | None:
        """
        获取{{ doc_comment }}

        :param db: 数据库会话
        :param pk: {{ doc_comment }} ID
        :return:
        """
        return await self.select_model(db, pk)

    async def get_select(self) -> Select:
        """获取{{ doc_comment }}列表查询表达式"""
        return await self.select_order('id', 'desc')

    async def get_all(self, db: AsyncSession) -> Sequence[{{ class_name }}]:
        """
        获取所有{{ doc_comment }}

        :param db: 数据库会话
        :return:
        """
        return await self.select_models(db)

    async def create(self, db: AsyncSession, obj: Create{{ schema_name }}Param) -> None:
        """
        创建{{ doc_comment }}

        :param db: 数据库会话
        :param obj: 创建{{ doc_comment }}参数
        :return:
        """
        await self.create_model(db, obj)

    async def update(self, db: AsyncSession, pk: int, obj: Update{{ schema_name }}Param) -> int:
        """
        更新{{ doc_comment }}

        :param db: 数据库会话
        :param pk: {{ doc_comment }} ID
        :param obj: 更新 {{ doc_comment }}参数
        :return:
        """
        return await self.update_model(db, pk, obj)

    async def delete(self, db: AsyncSession, pks: list[int]) -> int:
        """
        批量删除{{ doc_comment }}

        :param db: 数据库会话
        :param pks: {{ doc_comment }} ID 列表
        :return:
        """
        return await self.delete_model_by_column(db, allow_multiple=True, id__in=pks)


{{ table_name }}_dao: CRUD{{ class_name }} = CRUD{{ class_name }}({{ class_name }})