import json
import uuid

from typing import Optional, List, io

import pandas as pd
from fastapi import UploadFile
from sqlalchemy.ext.asyncio import AsyncSession
from module_admin.entity.vo.common_vo import CrudResponseModel
from module_admin.entity.vo.user_vo import CurrentUserModel
from module_admin.entity.vo.dataint_vo import FccbdPageObject, SaveFccbdModel
from module_admin.entity.do.dataint_do import SysFccbd
from module_admin.dao.fccbd_dao import FccbdDao
from exceptions.exception import ServiceException, ServiceWarning
from datetime import datetime
from utils.common_util import *


class FccbdService:
    """
    智能问答服务层
    """

    @classmethod
    async def get_fccbd_list_services(cls, result_db: AsyncSession, fccbd_query: FccbdPageObject, current_user: CurrentUserModel):
        result = await FccbdDao.get_fccbd_list(result_db, fccbd_query)
        return CamelCaseUtil.transform_result(result)

    @classmethod
    async def save_fccbd(cls, result_db: AsyncSession, saveFccbdModel: SaveFccbdModel, current_user: CurrentUserModel):
        if saveFccbdModel.onum is None:
            # add
            saveFccbdModel.onum = uuid.uuid4()
            addObj = SysFccbd(**saveFccbdModel.model_dump())
            addObj.create_by = current_user.user.user_name
            addObj.create_time = datetime.now()
            addObj.update_by = current_user.user.user_name
            addObj.update_time = datetime.now()
            await FccbdDao.insert_fccbd(result_db, addObj)
        else:
            # update
            oldObj = await FccbdDao.get_fccbd_by_id(result_db, saveFccbdModel.onum)
            if oldObj is None:
                raise ServiceException(message='所改对象不存在')
            saveObj = saveFccbdModel.model_dump(exclude_unset=True)
            saveObj['update_by'] = current_user.user.user_name
            saveObj['update_time'] = datetime.now()
            await FccbdDao.update_fccbd(result_db, saveObj)
        await result_db.commit()
        return CrudResponseModel(is_success=True, message='操作成功')

    @classmethod
    async def delete_fccbd(cls, db: AsyncSession, array: List[str]):
        await FccbdDao.delete_fccbd(db, array)
        await db.commit()
        return CrudResponseModel(is_success=True, message='操作成功')

    @staticmethod
    async def get_import_template_services():
        """
        获取元数据导入模板service
        :return: 元数据导入模板excel的二进制数据
        """
        table_header_list = ['词语', '频次', '词性', '词性名称', '状态']
        selector_header_list = ['状态']
        option_list = [{'状态': ['正常', '停用']}]

        sheet_config1 = dict(
            sheet_name="分词词典补充", header_list=table_header_list,data_list=[], selector_header_list=selector_header_list
        )

        sheet_configs = [sheet_config1]
        binary_data = get_excel_template_with_sheets(
            sheet_configs,  # 每个Sheet的配置（包含表头、选择器等）
            option_list
        )

        return binary_data

    @classmethod
    async def batch_import_fccbd_data(cls,
                                         result_db: AsyncSession,
                                         file: UploadFile,
                                         overWrite: bool,
                                         current_user: CurrentUserModel):
        table_header_dict = {
            '词语': 'term',
            '频次': 'freq',
            '词性': 'pos',
            '词性名称': 'pos_name',
            '状态': 'status'
        }
        contents = await file.read()
        excel_file = pd.ExcelFile(io.BytesIO(contents))
        await file.close()
        # 获取所有sheet名称
        sheet_names = excel_file.sheet_names
        # 逐个读取
        tableSheet = sheet_names[0]
        result_list = {
            "rows": [],
            "successCount": 0
        }
        if tableSheet == '分词词典补充':
            df = excel_file.parse(sheet_name=tableSheet, dtype=str, keep_default_na=False, na_values=[])
            df.rename(columns=table_header_dict, inplace=True)
            for index, row in df.iterrows():
                noneValid = ''
                if row['term'] is None or len(row['term']) == 0:
                    noneValid += "词语不能为空"
                if row['freq'] is None or len(row['freq']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",频次不能为空"
                    else:
                        noneValid += "频次不能为空"
                if row['pos'] is None or len(row['pos']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",词性不能为空"
                    else:
                        noneValid += "词性不能为空"
                if row['pos_name'] is None or len(row['pos_name']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",词性名称不能为空"
                    else:
                        noneValid += "词性名称不能为空"
                if row['status'] is None or len(row['status']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",状态不能为空"
                    else:
                        noneValid += "状态不能为空"
                if len(noneValid) > 0:
                    result_list['rows'].append({
                        "row": index + 2,
                        "errorInfo": noneValid
                    })
                    continue
                fccbd = SaveFccbdModel()
                fccbd.term = row['term']
                fccbd.freq = row['freq']
                fccbd.pos = row['pos']
                fccbd.pos_name = row['pos_name']
                fccbd.status = '1' if row['status'] == '1' else '0'
                await cls.save_fccbd(result_db, fccbd, current_user)
                result_list['successCount'] += 1
        return result_list