/*
 * @Author: fxs bjnsfxs@163.com
 * @Date: 2024-08-20 17:15:49
 * @LastEditors: fxs bjnsfxs@163.com
 * @LastEditTime: 2024-12-07
 * @Description:
 *
 */
import type { ResponseInfo } from '@/types/res'
import type { TableFieldInfo, TablePaginationSetting } from '@/types/table'

import { initLoadResource } from '@/utils/resource'
import { reactive, toRaw } from 'vue'
// import { downLoadData } from '@/utils/table/table'
import { generateRandomFileName } from '@/utils/common'

import * as xlsx from 'xlsx'

import axiosInstance from '../utils/axios/axiosInstance'
import type { ReqConfig } from '@/types/dataAnalysis'

// 资源的加载路径
const resourceInfo: Record<string, string> = {
  defaultHead: `/img/default/defaultHead.png`
}

// 使用blob的资源路径信息
const blobUrlInfo = reactive<Record<string, string>>({})

// 初始化资源
initLoadResource(resourceInfo).then((data) => {
  Object.assign(blobUrlInfo, data)
})

export function useTable(
  tableData: Array<any>,
  paginationSetting: TablePaginationSetting,
  tableFieldsInfo: TableFieldInfo[]
) {
  /**
   * @description: 设置默认头像
   * @param  data 请求回来的数据表格
   * @return  返回处理后的数据
   */
  const setDefaultHead = (data: Array<any>): Array<any> => {
    if (data) {
      data.map(async (item: any) => {
        if (!item.head) item.head = blobUrlInfo.defaultHead
      })
    }
    return data
  }

  /**
   * 将请求的数据写入tableData
   *
   * 对开启分页的数据做单独的处理
   *
   * @param dataList 数据列表
   * @param total 数据总量
   * @param openPagination 是否开启了分页查询
   * @param openRemoteReq 是否是远程请求
   * @return 成功返回true，反之false
   */
  const setTableData = (
    dataList: Array<any>,
    total: number,
    openPagination: boolean,
    openRemoteReq: boolean
  ): boolean => {
    try {
      if (!dataList || dataList.length === 0) {
        tableData.length = 0
        paginationSetting.total = 0
      } else {
        // 确保返回的数据中有total才赋值，否则直接使用长度
        if (total) {
          paginationSetting.total = total
        } else {
          paginationSetting.total = dataList.length
        }
        console.log(paginationSetting.total)
        // 处理有头像的字段
        dataList = setDefaultHead(dataList)

        // 如果开启了分页，设置 tableData 为二维数组，否则为一维数组
        const pageIndex = paginationSetting.currentPage ?? 0
        if (openPagination && openRemoteReq) {
          tableData[pageIndex] = dataList
        } else {
          tableData.splice(0, tableData.length, ...dataList)
        }
      }
      return true
    } catch (err) {
      console.error('数据处理错误:', err)
      return false
    }
  }

  /**
   * @description 获取表格数据
   * @param url 请求地址
   * @param option 请求参数
   * @return [表格数据，总数]
   */
  const getTableData = async (
    url: string,
    option: Record<string, any>
  ): Promise<[Array<any>, number]> => {
    try {
      const result = await axiosInstance.post<any, ResponseInfo>(url, option)

      return [result.data ?? [], result.count ?? 0]
    } catch (err) {
      console.error('请求数据错误:', err)
      return [[], 0]
    }
  }

  /**
   * 开启行号功能后，计算行号
   * @param index 当前行索引
   */
  const computedRowIndex = (index: number) => {
    return (paginationSetting.currentPage - 1) * paginationSetting.limit + index + 1
  }

  /**
   * @description: 改变页码
   * @param val
   */
  const handleCurrentChange = (val: number) => {
    paginationSetting.currentPage = val
  }

  /**
   * @description 改变每页大小
   * @param val
   */
  const handleSizeChange = (val: number) => {
    paginationSetting.limit = val
  }

  /**
   * 插入均值行
   *
   * @param needAverage 是否需要计算平均值
   * @param openRemoteReqData 是否是远程请求
   */
  const insertAverageRow = (needAverage: boolean, openRemoteReqData: boolean) => {
    if (needAverage) {
      const rowData: any = {}
      const oldList: Array<any> = JSON.parse(JSON.stringify(tableData))
      Object.values(tableFieldsInfo).map((item: TableFieldInfo, index: number) => {
        const sum = oldList
          .map((item) => item.count)
          .reduce((accumulator, currentValue) => accumulator + currentValue, 0)
        const averageList = oldList
          .map((val) => val[item.name])
          .filter((item) => item !== undefined)
        if (index === 0) rowData[item.name] = '均值'
        else if (item.name === 'count') rowData[item.name] = sum
        else {
          const num =
            averageList.reduce((accumulator, currentValue) => accumulator + currentValue, 0) /
            averageList.length

          rowData[item.name] = isNaN(num) ? 0 : num.toFixed(2)
        }
      })
      if (openRemoteReqData) {
        tableData[0].splice(0, 0, rowData)
      } else {
        tableData.splice(0, 0, rowData)
      }
    }
  }

  /**
   * 清空表格数据
   */
  const resetTableData = () => {
    tableData.splice(0, tableData.length)
  }

  /**
   * @description: 根据计算出来的值去返回对应的颜色深度
   * @param number 输入值
   */
  const getDecimalFromRange = (number: number) => {
    if (!number) return 0
    if (number < 25) return 0.25
    else if (number < 50) return 0.5
    else if (number < 75) return 0.75
    else return 1.0 // 如果number >= 75，则直接返回1.00
  }

  /**
   * @description: 初始化分页配置，把传入的配置拷贝一份
   */
  const initPageConfig = (propPageConfig?: TablePaginationSetting) => {
    if (propPageConfig) {
      Object.assign(paginationSetting, JSON.parse(JSON.stringify(propPageConfig)))
    }
  }

  /**
   * @description: 初始化请求配置，用于把拷贝一份新的数据
   */
  const initReqConfig = (reqConfig: ReqConfig, propReqConfig?: ReqConfig) => {
    if (propReqConfig) {
      Object.assign(reqConfig, propReqConfig)
    }
  }

  /**
   * @description: 创建row-key优化表格性能
   */
  const createRowKey = () => {
    return `${Date.now()}-${Math.random().toString(36).slice(2, 11)}`
  }

  /**
   * @description: 下载表格数据
   */
  const downLoadTable = (headerMap: Record<string, string> = {}) => {
    // downLoadData(generateRandomFileName(), JSON.parse(JSON.stringify(tableData)))
    const exportData = tableData
      .slice(1)
      .flat()
      .map((item) => {
        const rawData = toRaw(item)
        // 遍历对象的键，删除不在 validKeys 中的键
        Object.keys(item).forEach((key) => {
          if (!(key in headerMap)) {
            delete item[key]
          }
        })
        return rawData
      })
    // 表头设置
    // exportData.unshift(headerZh)

    const header = Object.keys(headerMap)
    const newData = [
      {
        actionId: '事件ID',
        actionName: '事件名称',
        actionCount: '操作次数',
        actionUserCount: '操作用户数',
        activeUserRate: '活跃设备发生率',
        loginActiveRate: '每次启动发生数'
      },
      ...exportData
    ]
    const workbook = xlsx.utils.book_new()
    const worksheet = xlsx.utils.json_to_sheet(newData, {
      header: header,
      skipHeader: true
    })

    xlsx.utils.book_append_sheet(workbook, worksheet, 'Sheet1')
    return xlsx.writeFile(workbook, generateRandomFileName() + '.xlsx')
  }

  return {
    getTableData,
    setTableData,
    resetTableData,
    initPageConfig,
    initReqConfig,
    getDecimalFromRange,
    computedRowIndex,
    handleCurrentChange,
    handleSizeChange,
    insertAverageRow,
    createRowKey,
    downLoadTable
  }
}