'use strict';


const assert = require('assert');
const _ = require('lodash');
const fs = require('fs');
const Excel = require('exceljs');
const { ObjectId } = require('mongoose').Types;
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const moment = require('moment');
const nodemailer = require('nodemailer');
const { template } = require('lodash');
const docx = require('docx');
const archiver = require('archiver');
class UtilService extends CrudService {
  async updatedate() {
    let date = new Date();
    date = moment(date).format('YYYY-MM-DD HH:mm:ss');
    return date;
  }

  async sendMail(email, subject, text, html) {
    const setting = await this.ctx.model.Setting.findOne();
    let user_email = this.ctx.app.config.user_email;
    let auth_code = this.ctx.app.config.auth_code;
    if (setting) {
      user_email = setting.user_email;
      auth_code = setting.auth_code;
    }
    const transporter = nodemailer.createTransport({
      host: 'smtp.exmail.qq.com',
      secureConnection: true,
      port: 465,
      auth: {
        user: user_email, // 账号
        pass: auth_code, // 授权码
      },
    });
    const mailOptions = {
      from: user_email, // 发送者,与上面的user一致
      to: email, // 接收者,可以同时发送多个,以逗号隔开
      subject, // 标题
      text, // 文本
      html,
    };

    try {
      await transporter.sendMail(mailOptions);
      return true;
    } catch (err) {
      return false;
    }
  }

  async findone({ modelname }, data) {
    // 查询单条
    const _model = _.capitalize(modelname);
    const res = await this.ctx.model[_model].findOne({ ...data });
    return res;
  }

  async findbyids({ modelname }, { data }) {
    // 共通批量查询方法
    const _model = _.capitalize(modelname);
    const res = [];
    for (const elm of data) {
      const result = await this.ctx.model[_model].findById(elm);
      res.push(result);
    }
    return res;
  }
  async findmodel({ modelname }) {
    const _model = _.capitalize(modelname);
    const data = this.ctx.model[_model].prototype.schema.obj;
    return data;
  }
  async utilMethod(data, body) {
    // 将指定计划,期数的教师状态解除确认
    let trainPlan = await this.ctx.model.Trainplan.findById('5f5adb337ceb003386c9b0d4');
    trainPlan = JSON.parse(JSON.stringify(trainPlan));
    let terms = {};
    for (const term of trainPlan.termnum) {
      if (ObjectId('5f5aed5e69b4221aedaa5005').equals(term._id)) {
        for (const batch of term.batchnum) {
          for (const c of batch.class) {
            for (const l of c.lessons) {
              l.status = '0';
            }
          }
        }
        terms = term;
      }
    }
    const i = trainPlan.termnum.findIndex(f => ObjectId('5f5aed5e69b4221aedaa5005').equals(f._id));
    trainPlan.termnum[i] = terms;
    delete trainPlan.meta;
    const r = await this.ctx.model.Trainplan.update(
      { _id: ObjectId('5f5adb337ceb003386c9b0d4') },
      { ...trainPlan }
    );
    console.log(r);


    // const output = fs.createWriteStream('E:\\exportFile\\test.zip');
    // const archive = archiver('zip', {
    //   zlib: { level: 9 },
    // });
    // archive.pipe(output);
    // const res = await this.ctx.curl('http://jytz.jilinjobs.cn/files/task/20200914174650.jpg');
    // if (res && res.data) {
    //   archive.append(res.data, { name: 'test.jpg', prefix: 'test/test2/test3' });
    // }
    // archive.finalize();
  }

  async teacherImport() {
    // const filepath = './teacherlist.xlsx';
    // const workbook = new Excel.Workbook();
    // await workbook.xlsx.readFile(filepath);
    // const worksheet = workbook.getWorksheet(1);
    // if (!worksheet) return;
    // let arr = [];
    // worksheet.eachRow((row, ri) => {
    //   if (ri !== 1) {
    //     const obj = {};
    //     obj.name = row.getCell(3).value || undefined;
    //     obj.department = row.getCell(4).value || undefined;
    //     if (row.getCell(5).value) obj.job = row.getCell(5).value;
    //     obj.phone = row.getCell(6).value || undefined;
    //     obj.status = '4';
    //     arr.push(obj);
    //   }
    // });
    // // 检查谁生成过了, user表和teacher表
    // let ur = await this.ctx.model.User.find({ mobile: { $in: arr.map(i => i.phone) }, type: '3' });
    // let tr = await this.ctx.model.Teacher.find({ phone: { $in: arr.map(i => i.phone) } });
    // // 将有的老师过滤出去
    // if (ur) {
    //   ur = JSON.parse(JSON.stringify(ur));
    //   arr = arr.filter(f => !ur.find(uf => `${uf.mobile}` === `${f.phone}`));
    // }
    // if (tr) {
    //   tr = JSON.parse(JSON.stringify(tr));
    //   arr = arr.filter(f => !(tr.find(tf => `${tf.phone}` === `${f.phone}`)));
    // }
    // for (const tea of arr) {
    //   const ctr = await this.ctx.model.Teacher.create(tea);
    //   if (ctr) {
    //     const obj = { name: tea.name, mobile: tea.phone, type: '3', uid: ctr._id };
    //     const cur = await this.ctx.model.User.create(obj);
    //   }
    // }
    // const user = await this.ctx.model.User.find({ passwd: { $exists: false } });
    // console.log(user.length);
    // for (const u of user) {
    //   u.passwd = { secret: '12345678' };
    //   u.save();
    // }
  }


  async toExcel(dataList, meta, fn = '导出结果') {
    console.log(meta);
    // 导出excel
    const { app } = this;
    const nowDate = new Date().getTime();
    const filename = `${fn}-${nowDate}.xlsx`;
    // 取出预设存储地址
    const rootPath = `${app.config.cdn.repos_root_path}`;
    const rooturl = `${app.config.cdn.repos_root_url_excel}`;
    let path = `${rootPath}${rooturl}`;
    if (!path) {
      throw new BusinessError(ErrorCode.BUSINESS, '服务端没有设置存储路径');
    }
    if (process.env.NODE_ENV === 'development') path = 'E:\\exportFile\\';
    if (!fs.existsSync(path)) {
      // 如果不存在文件夹,就创建
      fs.mkdirSync(path);
    }
    // 生成文件
    const filepath = `${path}${filename}`;
    fs.createWriteStream(filepath);
    const workbook = new Excel.Workbook();
    const sheet = workbook.addWorksheet('sheet');
    sheet.columns = meta;
    sheet.addRows(dataList);
    await workbook.xlsx.writeFile(filepath);
    return `/files/excel/${filename}`;
  }

  /**
   * 导出docx
   * @param {Array} data 数据[{title,content([]),author}]
   * @param {String} fn 文件名
   */
  async toDocx(data, fn = '培训心得') {
    const {
      Document,
      Packer,
      Paragraph,
      TextRun,
      HeadingLevel,
      AlignmentType,
    } = docx;
    const doc = new Document();
    const children = [];
    // 整理数据
    for (let i = 0; i < data.length; i++) {
      const obj = data[i];
      const { title, content, author } = obj;
      const c = [];
      if (title) {
        const tit = new Paragraph({
          children: [ new TextRun({ text: title, bold: true }) ],
          heading: HeadingLevel.TITLE,
          alignment: AlignmentType.CENTER,
        });
        c.push(tit);
      }
      if (author) {
        const auth = new Paragraph({
          children: [ new TextRun({ color: '#000000', text: author }) ],
          heading: HeadingLevel.HEADING_2,
          alignment: AlignmentType.RIGHT,
        });
        c.push(auth);
      }
      if (content && _.isArray(content) && content.length > 0) {
        for (const cont of content) {
          const p = new Paragraph({
            children: [ new TextRun({ text: cont, bold: true }) ],
          });
          c.push(p);
        }
      }
      if (i !== data.length - 1) {
        // 换页
        const last = new Paragraph({
          pageBreakBefore: true,
        });
        c.push(last);
      }
      if (c.length > 0) children.push(...c);
    }
    doc.addSection({
      properties: {},
      children,
    });

    const { app } = this;
    const rootPath = `${app.config.cdn.repos_root_path}`;
    const rooturl = `${app.config.cdn.repos_root_url_experience}`;
    let path = `${rootPath}${rooturl}`;
    // 如果不存在文件夹,就创建
    if (process.env.NODE_ENV === 'development') path = 'E:\\exportFile\\';
    if (!fs.existsSync(path)) {
      fs.mkdirSync(path);
    }
    const num = new Date().getTime();
    const buffer = await Packer.toBuffer(doc);
    fs.writeFileSync(`${path}${fn}-${num}.docx`, buffer);
    // Packer.toBuffer(doc).then(buffer => {
    //   fs.writeFileSync(`${path}${fn}-${num}.docx`, buffer);
    // });
    return `/files${rooturl}${fn}-${num}.docx`;
  }

  /**
   * 将选择的文件导出到zip压缩包中,提供下载
   * @param {*} fileList 需要导入到zip中的列表,格式有2中: [{url:""}]或[String]
   * @param {*} fn 文件名,默认为 "导出结果"
   */
  async toZip(fileList, fn = '导出结果') {
    if (!_.isArray(fileList)) {
      throw new BusinessError(ErrorCode.DATA_INVALID, '需要压缩的文件数据格式错误');
    }
    fn = `${fn}.zip`;
    // zip文件夹创建
    const { app } = this;
    const rootPath = `${app.config.cdn.repos_root_path}`;
    const zipPath = `${app.config.cdn.repos_root_url_zip}`;
    let path = `${rootPath}${zipPath}`;
    if (process.env.NODE_ENV === 'development') path = 'E:\\exportFile\\';
    if (!fs.existsSync(path)) {
      fs.mkdirSync(path);
    }
    // 文件请求后将数据整理到这里
    const resetFileList = [];
    for (const file of fileList) {
      let uri = '';
      let filename = '';
      let prefixs;
      if (_.isString(file)) {
        uri = file;
        const arr = file.split('/');
        const last = _.last(arr);
        if (last) filename = last;
      } else if (_.isObject(file)) {
        const { uri: furi, url: furl, name, prefix } = file;
        if (furi) uri = furi;
        else if (furl) uri = furl;
        if (name) filename = name;
        else {
          const arr = uri.split('/');
          const last = _.last(arr);
          if (last) filename = last;
        }
        if (prefix) prefixs = prefix;
      }
      const obj = {};
      if (uri) obj.uri = uri;
      if (filename)obj.filename = filename;
      if (prefixs) obj.prefix = prefixs;
      resetFileList.push(obj);
    }
    // 导出
    const output = fs.createWriteStream(`${path}${fn}`);
    const archive = archiver('zip', {
      zlib: { level: 9 },
    });
    archive.pipe(output);
    // 请求文件,追加进压缩包
    for (const file of resetFileList) {
      const { uri, filename, prefix } = file;
      const res = await this.ctx.curl(`http://127.0.0.1${uri}`);
      if (res && res.data) {
        const options = {};
        if (filename)options.name = filename;
        if (prefix) options.prefix = prefix;
        if (filename) { archive.append(res.data, options); }
      }
    }
    await archive.finalize();
    return `/files${zipPath}${fn}`;
  }
}

module.exports = UtilService;