from sqlalchemy.ext.asyncio import AsyncSession
from module_admin.dao.metadata_config_dao import MetadataConfigDao
from module_admin.entity.vo.common_vo import CrudResponseModel
from module_admin.entity.vo.metadata_config_vo import MetadataClasModel, MetadataClasPageQueryModel
from utils.common_util import CamelCaseUtil
from exceptions.exception import ServiceException


class MetadataConfigService:
    """
    元数据分类管理 Service
    """

    @classmethod
    async def get_metadata_clas_list_services(
        cls, query_db: AsyncSession, query_object: MetadataClasPageQueryModel, is_page: bool = False
    ):
        """
        查询元数据分类列表
        """
        result = await MetadataConfigDao.get_metadata_clas_list(query_db, query_object, is_page)
        return result

    @classmethod
    async def add_metadata_clas_services(
        cls, query_db: AsyncSession, page_object: MetadataClasModel
    ):
        """
        新增元数据分类
        """
        try:
            await MetadataConfigDao.add_metadata_clas_dao(query_db, page_object)
            await query_db.commit()
            return CrudResponseModel(is_success=True, message="新增成功")
        except Exception as e:
            await query_db.rollback()
            raise e

    @classmethod
    async def edit_metadata_clas_services(
        cls, query_db: AsyncSession, page_object: MetadataClasModel
    ):
        """
        编辑元数据分类
        """
        edit_data = page_object.model_dump(exclude_unset=True)
        info = await cls.get_metadata_clas_detail_services(query_db, page_object.clas_onum)
        if info.clas_onum:
            try:
                await MetadataConfigDao.edit_metadata_clas_dao(query_db, page_object.clas_onum, edit_data)
                await query_db.commit()
                return CrudResponseModel(is_success=True, message="更新成功")
            except Exception as e:
                await query_db.rollback()
                raise e
        else:
            raise ServiceException(message="元数据标签不存在")

    @classmethod
    async def delete_metadata_clas_services(
        cls, query_db: AsyncSession, clas_ids: str
    ):
        """
        删除元数据分类（支持多个ID用逗号分隔）
        """
        if not clas_ids:
            raise ServiceException(message="传入的分类ID为空")

        id_list = [int(id_str) for id_str in clas_ids.split(",") if id_str.isdigit()]
        if not id_list:
            raise ServiceException(message="无效的分类ID列表")

        try:
            await MetadataConfigDao.delete_metadata_clas_dao(query_db, id_list)
            await query_db.commit()
            return CrudResponseModel(is_success=True, message="删除成功")
        except Exception as e:
            await query_db.rollback()
            raise e

    @classmethod
    async def get_metadata_clas_detail_services(cls, query_db: AsyncSession, clas_id: int):
        """
        查询元数据分类详情
        """
        result = await MetadataConfigDao.get_clas_detail_by_id(query_db, clas_id)
        if result:
            return MetadataClasModel(**CamelCaseUtil.transform_result(result))
        else:
            return MetadataClasModel(**dict())