'use strict';
const fs = require('fs');
const xlsx = require('better-xlsx');
const path = require('path')
const moment = require('moment')

//递归创建目录 同步方法  
async function makeDir (dir) {
   if (!fs.existsSync(dir)) {
      makeDir(path.dirname(dir))
      fs.mkdirSync(dir, function (err) {
         if (err) {
            throw err
         }
      });
   }
}

async function gatherSheet ({ sheet_2, data = [] }) {

   // header
   const headerStyle = new xlsx.Style();
   headerStyle.align.h = 'center';
   headerStyle.align.v = 'center';
   headerStyle.border.right = 'thin';
   headerStyle.border.rightColor = '#000000';
   headerStyle.border.bottom = 'thin';
   headerStyle.border.bottomColor = '#000000';

   const headerRow1 = sheet_2.addRow();
   const indexCell1 = headerRow1.addCell();
   indexCell1.value = '南昌县农村公路养护管理暨用地范围内环境整治提升工程         考核汇总表'
   indexCell1.style = headerStyle
   indexCell1.hMerge = 12

   const headerRow2 = sheet_2.addRow();
   const indexCell2 = headerRow2.addCell();
   indexCell2.value = '责任单位'
   indexCell2.style = headerStyle
   indexCell2.vMerge = 1


   for (let h of ['县道', '', '', '', '乡道', '', '', '', '村道', '', '', '',]) {
      const cell = headerRow2.addCell();

      cell.value = h;
      cell.style = headerStyle
      if (h) {
         cell.hMerge = 3

      }
   }

   const header = [{
      key: 'name',
      title: '',
   }, {
      key: 'county',
      title: '总里程',
   }, {
      key: 'countyParticipate',
      title: '纳入考核里程',
   }, {
      key: 'countyPresent',
      title: '本次考核里程',
   }, {
      key: 'countyDifferenceValue',
      title: '实际抽取比原计划多',
   }, {
      key: 'township',
      title: '总里程',
   }, {
      key: 'townshipParticipate',
      title: '纳入考核里程',
   }, {
      key: 'townshipPresent',
      title: '本次考核里程',
   }, {
      key: 'townshipDifferenceValue',
      title: '实际抽取比原计划多',
   }, {
      key: 'village',
      title: '总里程',
   }, {
      key: 'villageParticipate',
      title: '纳入考核里程',
   }, {
      key: 'villagePresent',
      title: '本次考核里程',
   }, {
      key: 'villageDifferenceValue',
      title: '实际抽取比原计划多',
   },]

   const headerRow3 = sheet_2.addRow();
   for (let h of header) {
      const cell = headerRow3.addCell();
      cell.value = h.title;
      cell.style = headerStyle
   }

   // data
   const style = new xlsx.Style();
   style.align.h = 'left';
   style.align.v = 'center';
   style.border.right = 'thin';
   style.border.rightColor = '#000000';
   style.border.bottom = 'thin';
   style.border.bottomColor = '#000000';

   let rowGather = sheet_2.addRow();
   for (let h of header) {
      const cell = rowGather.addCell();
      cell.value = h.key == 'name' ? '汇总' : data.reduce((a, b) => a + (b[h.key] || 0), 0)
      cell.style = style
   }

   for (let i = 0; i < data.length; i++) {
      const row = sheet_2.addRow();
      for (let h of header) {
         const cell = row.addCell();
         cell.value =  data[i][h.key]
         cell.style = style
      }
   }
}

async function simpleExcelDown ({ data = [], header = [], fileName = moment().format('YYYY-MM-DD HH:mm:ss'), exp, gather } = {}) {
   const fileDirPath = path.join(__dirname, `../../downloadFiles`)
   makeDir(fileDirPath)
   const file = new xlsx.File();
   const sheet_1 = file.addSheet('sheet_1');
   if (gather) {
      const sheet_2 = file.addSheet('sheet_2');
      await gatherSheet({ sheet_2, ...gather })
   }

   // header
   const headerStyle = new xlsx.Style();
   headerStyle.align.h = 'center';
   headerStyle.align.v = 'center';
   headerStyle.border.right = 'thin';
   headerStyle.border.rightColor = '#000000';
   headerStyle.border.bottom = 'thin';
   headerStyle.border.bottomColor = '#000000';

   const headerRow = sheet_1.addRow();
   const indexCell = headerRow.addCell();
   indexCell.value = '序号'
   indexCell.style = headerStyle
   for (let h of header) {
      const cell = headerRow.addCell();
      cell.value = h.title;
      cell.style = headerStyle
   }

   // data
   const style = new xlsx.Style();
   style.align.h = 'left';
   style.align.v = 'center';
   style.border.right = 'thin';
   style.border.rightColor = '#000000';
   style.border.bottom = 'thin';
   style.border.bottomColor = '#000000';
   for (let i = 0; i < data.length; i++) {
      const row = sheet_1.addRow();
      const indexCell = row.addCell();
      indexCell.value = i + 1
      indexCell.style = headerStyle
      for (let h of header) {
         const cell = row.addCell();
         cell.value = data[i][h.key];

         if (exp == 'patrol' || exp == 'maintenance') {
            if (h.key == 'projectType') {
               let type = data[i][h.key]
               if (type == 'road') {
                  cell.value = '道路'
               } else if (type == 'bridge') {
                  cell.value = '桥梁'
               } else if (type == 'culvert') {
                  cell.value = '涵洞'
               } else if (type == 'other') {
                  cell.value = '其他'
               }
               continue
            }

            if (h.key == 'reportType') {
               let type = data[i][h.key]
               if (type == 'patrol') {
                  cell.value = '巡查'
               } else if (type == 'conserve') {
                  cell.value = '养护'
               }
               continue
            }
         }

         cell.style = style
      }
   }

   const savePath = path.join(fileDirPath, fileName)
   await new Promise(function (resolve, reject) {
      file.saveAs()
         .pipe(fs.createWriteStream(savePath))
         .on('finish', () => {
            resolve()
         });
   })
   return savePath
}



module.exports = {
   simpleExcelDown
}