import io
import json
import uuid

from typing import Optional, List

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 CdplbPageObject, SaveCdplbModel, SaveCdplbObj
from module_admin.entity.do.dataint_do import SysCdplb
from module_admin.dao.cdplb_dao import CdplbDao
from exceptions.exception import ServiceException, ServiceWarning
from config.env import AppConfig
from datetime import datetime
import requests
from utils.common_util import *


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

    @classmethod
    async def get_cdplb_list_services(cls, result_db: AsyncSession, cdplb_query: CdplbPageObject, current_user: CurrentUserModel):
        result = await CdplbDao.get_cdplb_list(result_db, cdplb_query)
        return CamelCaseUtil.transform_result(result)

    @classmethod
    async def save_cdplb(cls, result_db: AsyncSession, saveCdplbModel: SaveCdplbModel, current_user: CurrentUserModel):
        if saveCdplbModel.list and len(saveCdplbModel.list) > 0:
            for item in saveCdplbModel.list:
                if item.onum is None:
                    oldObj = await CdplbDao.get_cdplb_by_col(result_db, item.ssys_id, item.mdl_name, item.bath_obj_tab_name, item.bath_obj_fld_name)
                    if oldObj is None:
                        addObj = SysCdplb(**item.model_dump())
                        addObj.onum = uuid.uuid4()
                        addObj.status = '1'
                        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 CdplbDao.insert_cdplb(result_db, addObj)
                else:
                    oldObj = await CdplbDao.get_cdplb_by_id(result_db, item.onum)
                    if oldObj is None:
                        raise ServiceException(message='所改对象不存在')
                    saveObj = item.model_dump(exclude_unset=True)
                    saveObj['update_by'] = current_user.user.user_name
                    saveObj['update_time'] = datetime.now()
                    await CdplbDao.update_cdplb(result_db, saveObj)
        await result_db.commit()
        return CrudResponseModel(is_success=True, message='操作成功')

    @classmethod
    async def delete_cdplb(cls, db: AsyncSession, array: List[str]):
        await CdplbDao.delete_cdplb(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 = ['系统名称', '模式名称', '批量对象表名', '批里对象字段名', '状态']
        selector_header_list = ['状态']
        option_list = [{'状态': ['正常', '停用']}]

        sheet_config1 = dict(
            sheet_name="词典批量补充", 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_cdplb_data(cls,
                                      result_db: AsyncSession,
                                      file: UploadFile,
                                      overWrite: bool,
                                      current_user: CurrentUserModel):
        url = f'{AppConfig.ds_server_url}/dolphinscheduler/datasources?pageNo=1&pageSize=100'
        headers = {'dashUserName': current_user.user.user_name, 'dashPassword': current_user.user.password}
        response = requests.get(url, headers=headers, verify=False)
        dataSourceList = []
        if response.reason == 'OK':
            response_text = response.text
            data = json.loads(response_text)
            dataSourceList = data["data"]["totalList"]
        else:
            raise ServiceException(message=f'系统异常，获取数据源失败')
        table_header_dict = {
            '系统名称': 'ssys_cd',
            '模式名称': 'mdl_name',
            '批量对象表名': 'bath_obj_tab_name',
            '批里对象字段名': 'bath_obj_fld_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 == '词典批量补充':
            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 = ''
                ssysId = next((item["id"] for item in dataSourceList if item["name"] == row['ssys_cd']), None)
                if row['bath_obj_tab_name'] is None or len(row['bath_obj_tab_name']) == 0:
                    noneValid += "批量对象表名不能为空"
                if row['bath_obj_fld_name'] is None or len(row['bath_obj_fld_name']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",批量对象字段名不能为空"
                    else:
                        noneValid += "批量对象字段名不能为空"
                if row['ssys_cd'] is None or len(row['ssys_cd']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",系统不能为空"
                    else:
                        noneValid += "系统不能为空"
                if row['mdl_name'] is None or len(row['mdl_name']) == 0:
                    if len(noneValid) > 0:
                        noneValid += ",模式不能为空"
                    else:
                        noneValid += "模式不能为空"
                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 ssysId is None:
                    if len(noneValid) > 0:
                        noneValid += ",系统不存在，为无效系统"
                    else:
                        noneValid += "系统不存在，为无效系统"
                if len(noneValid) > 0:
                    result_list['rows'].append({
                        "row": index + 2,
                        "errorInfo": noneValid
                    })
                    continue
                cdplb = SaveCdplbObj()
                cdplb.ssys_id = ssysId
                cdplb.mdl_name = row['mdl_name']
                cdplb.bath_obj_tab_name = row['bath_obj_tab_name']
                cdplb.bath_obj_fld_name = row['bath_obj_fld_name']
                cdplb.status = '1' if row['status'] == '正常' else '0'
                mdl = SaveCdplbModel(list=[cdplb])
                await cls.save_cdplb(result_db, mdl, current_user)
                result_list['successCount'] += 1
        return result_list