'use strict';

const _ = require('lodash');
const fs = require('fs');
const Excel = require('exceljs');
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const moment = require('moment');
const nodemailer = require('nodemailer');
const docx = require('docx');
const archiver = require('archiver');
const { ObjectId } = require('mongoose').Types;

class UtilService extends CrudService {
  constructor(ctx) {
    super(ctx);
    this.mq = this.ctx.mq;
  }
  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
      },
    });
    if (process.env.NODE_ENV === 'development') email = '402788946@qq.com';
    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;
    const keys = Object.keys(data);
    const res = {};
    for (const k of keys) {
      const obj = data[k];
      if (_.get(obj, 'zh')) res[k] = obj;
    }
    return res;
  }
  async utilMethod(query, body) {
    const arr = this.app.router.stack;
    const list = [];
    for (const i of arr) {
      const { name, methods, path } = i;
      list.push([ name, methods, path ]);
    }
    await this.toExcel(list);
    // for (const trainPlan of allTranPlan) {
    //   const { termnum = [] } = trainPlan;
    //   const termids = termnum.map(f => ObjectId(f._id).toString());
    //   // 查出该期所有的申请
    //   const termApplys = await applyModel.find({ termid: termids }).lean();
    //   const needDeletes = termApplys.filter(f => !(allSubject.find(s => s._id === f.subid) && allTeacher.find(t => t._id === f.teacherid)));
    //   const deleteIds = needDeletes.map(i => i._id);
    //   console.log(deleteIds.length);
    //   // await applyModel.deleteMany({ _id: deleteIds });
    // }
    // // // 重置班级
    // // 找到要删除的学生
    // const res = await this.ctx.model.Student.find({ school_name: '吉林职业技术学院', planid: '60769b703cead37068645fb2', termid: { $ne: '60779c0b2ec7ac704ce301ab' } });
    // // const test = res.map(f => {
    // //   return { name: f.name, openid: f.openid, id: f._id };
    // // });
    // const ids = res.map(i => i._id);
    // await this.ctx.model.User.deleteMany({ uid: ids });
    // await this.ctx.model.Student.deleteMany({ school_name: '吉林职业技术学院', planid: '60769b703cead37068645fb2', termid: { $ne: '60779c0b2ec7ac704ce301ab' } });
    // const ids = res.map(i => i.openid);
    // // console.log(ids);
    //
    // console.log(userRes.length);

    // const { planid, termid, batchid, classid } = query;
    // const filters = {};
    // if (classid) filters.classid = classid;
    // else if (batchid)filters.batchid = batchid;
    // else if (termid)filters.termid = termid;
    // else if (planid)filters.planid = planid;
    // else throw new BusinessError(ErrorCode.BADPARAM, '需要重置范围');
    // await this.ctx.model.Student.updateMany(filters, { classid: undefined });
    // // 重置班级结束
  }
  async getQueryOptions({ skip, limit, sort, desc } = {}) {
    if (sort && _.isString(sort)) {
      sort = { [sort]: desc ? -1 : 1 };
    } else if (sort && _.isArray(sort)) {
      sort = sort.map(f => ({ [f]: desc ? -1 : 1 })).reduce((p, c) => ({ ...p, ...c }), {});
    }
    return { skip, limit, sort };
  }

  /**
   * 更新进度,状态 不存在/完成以外(不是2的值)的数值, 不添加参数,只更新进度
   * @param {String} missionid 任务id
   * @param {String} progress 进度(人为划分)
   * @param {String} status 状态
   * @param {Object} params 参数
   */
  async updateProcess(missionid, progress, status, params) {
    try {
      if (!missionid) return;
      const { baseUrl } = _.get(this.ctx.app.config, 'mission');
      let url = `${baseUrl}`;
      let data;
      if (!baseUrl) return;
      if (!status || status !== '2') {
        url = `${url}/api/mission/progress`;
        data = { id: missionid, progress };
      } else if (status === '3') {
        url = `${url}/api/mission/update/${missionid}`;
        data = { status };
      } else {
        url = `${url}/api/mission/update/${missionid}`;
        data = { progress: '100', params, status };
      }
      await this.ctx.curl(url, {
        method: 'post',
        headers: {
          'content-type': 'application/json',
        },
        data,
        dataType: 'json',
      });
    } catch (error) {
      console.error(`任务更新进度报错,missionid:${missionid}\n`);
    }
  }

  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: { $exists: false } });
    // for (const u of user) {
    //   u.passwd = { secret: '12345678' };
    //   u.save();
    // }
  }
  /**
   * 导出excel
   * @param {Array} dataList 数据集合
   * @param {Array} meta 表头(可以没有)
   * @param {String} fn 文件名
   * @param {Array} opera 单元格操作
   */
  async toExcel(dataList, meta, fn = '导出结果', opera) {
    // 导出excel
    const { app } = this;
    const nowDate = new Date().getTime();
    const filename = `${fn}-${nowDate}.xlsx`;
    // 取出预设存储地址
    const rootPath = `${app.config.cdn.repos_root_path}`;
    const rooturl = `${app.config.cdn.repos_root_url_excel}`;
    const path = `${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}${filename}`;
    fs.createWriteStream(filepath);
    const workbook = new Excel.Workbook();
    const sheet = workbook.addWorksheet('sheet');
    if (meta) sheet.columns = meta;
    sheet.addRows(dataList);
    if (_.isArray(opera)) {
      for (const o of opera) {
        const { startRow, startCol, endRow, endCol } = o;
        sheet.mergeCells(startRow, startCol, endRow, endCol);
      }
    }
    // 垂直居中
    const length = dataList.length;
    const alignment = { vertical: 'middle', horizontal: 'center' };
    for (let i = 1; i <= length; i++) {
      sheet.getRow(i).alignment = alignment;
    }
    await workbook.xlsx.writeFile(filepath);
    return `/files/excel/${filename}`;
  }

  /**
   * 创建/重复写入excel
   * @param {Array} dataList 数据
   * @param {String} fn 文件名, 第一次进入时,只是单纯的名,第二次开始,有后缀与时间戳
   * @param {String} downloadPath 下载文件路径
   * @param {String} type 方向,没有默认横向
   */
  async toAsyncExcel(dataList, fn = '导出结果', downloadPath, type) {
    const { app } = this;
    const workbook = new Excel.Workbook();
    let sheet;
    // 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}`;
    let filepath = '';

    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\\excel\\';
    if (!fs.existsSync(path)) {
      // 如果不存在文件夹,就创建
      fs.mkdirSync(path);
    }

    if (!downloadPath) {
      // 第一次进入,文件还未生成
      const nowDate = new Date().getTime();
      fn = `${fn}-${nowDate}.xlsx`;
      sheet = workbook.addWorksheet('sheet');
    } else {
      let domain = 'http://127.0.0.1';
      if (process.env.NODE_ENV === 'development') domain = `${domain}:8000`;
      const file = await this.ctx.curl(`${domain}${downloadPath}`);
      if (!(file && file.data)) {
        throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找导出的excel');
      }
      // 读取文件
      await workbook.xlsx.load(file.data);
      sheet = workbook.getWorksheet('sheet');
    }
    if (!type || type === 'horizontal') sheet.addRows(dataList);
    else if (type === 'vertical') {
      for (let i = 1; i <= dataList.length; i++) {
        const element = dataList[i - 1];
        const rows = sheet.getRow(i);
        if (rows.values.length <= 0) rows.values = element;
        else rows.values = rows.values.concat(element);
        rows.commit();
      }
    }
    filepath = `${path}${fn}`;
    await workbook.xlsx.writeFile(filepath);
    return { downloadPath: `/files/excel/${fn}`, fn };
  }

  /**
   * 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}`;
    const 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;