#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from typing import Sequence

from sqlalchemy import Select

from backend.app.{{ app_name }}.crud.crud_{{ table_name_en }} import {{ table_name_en }}_dao
from backend.app.{{ app_name }}.model import {{ table_name_class }}
from backend.app.{{ app_name }}.schema.{{ table_name_en }} import Create{{ schema_name }}Param, Update{{ schema_name }}Param
from backend.common.exception import errors
from backend.database.db import async_db_session


class {{ table_name_class }}Service:
    @staticmethod
    async def get(*, pk: int) -> {{ table_name_class }}:
        """
        获取{{ table_simple_name_zh }}

        :param pk: {{ table_simple_name_zh }} ID
        :return:
        """
        async with async_db_session() as db:
            {{ table_name_en }} = await {{ table_name_en }}_dao.get(db, pk)
            if not {{ table_name_en }}:
                raise errors.NotFoundError(msg='{{ table_simple_name_zh }}不存在')
            return {{ table_name_en }}

    @staticmethod
    async def get_select() -> Select:
        """获取{{ table_simple_name_zh }}查询对象"""
        return await {{ table_name_en }}_dao.get_list()

    @staticmethod
    async def get_all() -> Sequence[{{ table_name_class }}]:
        """获取所有{{ table_simple_name_zh }}"""
        async with async_db_session() as db:
            {{ table_name_en }}s = await {{ table_name_en }}_dao.get_all(db)
            return {{ table_name_en }}s

    @staticmethod
    async def create(*, obj: Create{{ schema_name }}Param) -> None:
        """
        创建{{ table_simple_name_zh }}

        :param obj: 创建{{ table_simple_name_zh }}参数
        :return:
        """
        async with async_db_session.begin() as db:
            await {{ table_name_en }}_dao.create(db, obj)

    @staticmethod
    async def update(*, pk: int, obj: Update{{ schema_name }}Param) -> int:
        """
        更新{{ table_simple_name_zh }}

        :param pk: {{ table_simple_name_zh }} ID
        :param obj: 更新{{ table_simple_name_zh }}参数
        :return:
        """
        async with async_db_session.begin() as db:
            count = await {{ table_name_en }}_dao.update(db, pk, obj)
            return count

    @staticmethod
    async def delete(*, pk: list[int]) -> int:
        """
        删除{{ table_simple_name_zh }}

        :param pk: {{ table_simple_name_zh }} ID 列表
        :return:
        """
        async with async_db_session.begin() as db:
            count = await {{ table_name_en }}_dao.delete(db, pk)
            return count


{{ table_name_en }}_service: {{ table_name_class }}Service = {{ table_name_class }}Service()