'use strict';
const { CrudService } = require('naf-framework-mongoose-free/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const { ObjectId } = require('mongoose').Types;
const _ = require('lodash');
const jwt = require('jsonwebtoken');
const assert = require('assert');
const Excel = require('exceljs');
const { sep } = require('path');
const fs = require('fs');

// 个人用户
class PersonalService extends CrudService {
  constructor(ctx) {
    super(ctx, 'personal');
    this.redis = this.app.redis;
    this.model = this.ctx.model.User.Personal;
    this.adminModel = this.ctx.model.User.Admin;
    this.util = this.ctx.service.util.util;
  }
  async query(condition, { skip = 0, limit = 0 }) {
    const query = await this.dealQueryCondition(_.cloneDeep(condition));
    const res = await this.model
      .find(query)
      .skip(parseInt(skip))
      .limit(parseInt(limit))
      .sort({ 'meta.createdAt': -1 });
    return res;
  }
  async count(condition) {
    const query = await this.dealQueryCondition(_.cloneDeep(condition));
    const res = await this.model.count(query);
    return res;
  }

  async dealQueryCondition({ role, code, ...condition } = {}) {
    condition = this.util.dealQuery(condition);
    // 查询业务管理
    const busFind = async query => await this.adminModel.find({ ...query, role: '3' }, { code: 1 });
    // 查询机构管理
    const orgFind = async query => await this.adminModel.find({ ...query, role: '2' }, { code: 1 });
    // 查询管理员
    const aFind = async query => await this.adminModel.find({ ...query, role: '1' }, { code: 1 });
    if (role === '1' && code) {
      // 管理员查询
      // =>获取该code下的机构管理员列表 => 用机构管理员id 获取业务管理员列表 => 将code都整理出来作为查询条件
      const a = await aFind({ code });
      if (a.length <= 0) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到该管理员');
      const aid = _.get(_.head(a), '_id');
      const orgList = await orgFind({ pid: aid });
      const busList = await busFind({ pid: orgList.map(i => i._id) });
      const codes = [ ...orgList.map(i => i.code), ...busList.map(i => i.code), code ];
      condition.code = codes;
    } else if (role === '2' && code) {
      // 机构查询
      // =>获取该code下的业务管理员列表 => 将code都整理出来作为查询条件
      const o = await orgFind({ code });
      if (o.length <= 0) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到该机构');
      const oid = _.get(_.head(o), '_id');
      const busList = await busFind({ pid: oid });
      const codes = [ ...busList.map(i => i.code), code ];
      condition.code = codes;
    } else if (code) {
      // 业务查询
      // code直接查询用户返回即可
      condition.code = code;
    }
    // 没有code,超级管理员,说明不限制
    return condition;
  }
  /**
   * 创建用户
   * @param {Object} params 用户信息
   */
  async create({ password, ...data }) {
    if (!password) password = '123456';
    data.password = { secret: password };
    const { name, phone, code } = data;
    // 检查手机号
    const num = await this.model.count({ phone, code, isdel: '0' });
    if (num > 0) throw new BusinessError(ErrorCode.DATA_EXISTED, `姓名:${name} ; 手机号: ${phone} ;已有机构所属的个人用户使用该手机号`);
    return await this.model.create(data);
  }
  /**
   * 修改密码
   * @param {Object} {id,password} 用户id和密码
   */
  async password({ id, password }) {
    const object = await this.model.findById(id);
    if (!object) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到用户的信息');
    object.password = { secret: password };
    await object.save();
  }
  /**
   * 登陆
   * @param {Object} params 登陆信息
   * @property phone 手机号
   * @property password 密码
   */
  async login({ phone, password }) {
    const object = await this.model.findOne({ phone, isdel: '0' }, '+password');
    if (!object) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到用户的信息');
    const { password: op, status } = object;
    const { secret } = op;
    if (status !== '1') throw new BusinessError(ErrorCode.ACCESS_DENIED, '拒绝访问!');
    if (secret !== password) throw new BusinessError(ErrorCode.BAD_PASSWORD, '密码错误');
    const data = _.omit(JSON.parse(JSON.stringify(object)), [ 'meta', 'password', '__v' ]);
    const { secret: secrets } = this.config.jwt;
    const token = jwt.sign(data, secrets);
    // 记录登陆
    // let number = await this.redis.get('login_number') || 0;
    // number++;
    // await this.redis.set('login_number', number);
    return token;
  }

  // async delete({ id }) {
  //   const object = await this.model.findById(id);
  //   if (!object) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到用户的信息');
  //   object.isdel = '1';
  //   await object.save();
  // }
  /**
   * 个人升变专家
   * @param {Object} body 升变数据
   * 升级的时候要把所属的信息(产品,需求等)换到升级后的数据上,一种数据迁移
   */
  async upgrade({ id, ...data }) {
    assert(id, '缺少个人用户ID');
    const user = await this.model.findOne({ _id: ObjectId(id) }, '+password');
    if (!user) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到用户的信息');
    data = _.omit(data, [ 'meta', '__v' ]);
    data.user_id = id;
    // 创建专家
    const is_expert = await this.ctx.model.User.Expert.count({ user_id: ObjectId(id) });
    if (is_expert > 0) throw new BusinessError(ErrorCode.DATA_EXISTED, '已升级为专家,无需再次升级');
    await this.ctx.model.User.Expert.create(data);
    user.is_expert = true;
    await user.save();
  }

  async import({ uri }) {
    assert(uri, '未获取到文件地址');
    const domain = 'http://127.0.0.1';
    const file = await this.ctx.curl(`${domain}${uri}`);
    if (!(file && file.data)) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到指定文件');
    }
    const workbook = new Excel.Workbook();
    await workbook.xlsx.load(file.data);
    const sheet = workbook.getWorksheet(1);
    let meta = this.importMeta();
    // 根据excel,将列序号加入meta中
    const head = _.get(sheet.getRow(1), 'values', []);
    for (let i = 0; i < head.length; i++) {
      const e = head[i];
      if (!e) continue;
      const r = meta.find(f => f.column === e);
      if (r) r.index = i;
    }
    // 过滤出列表中不必要且不存在的字段
    meta = meta.filter(f => f.required || f.index);
    const errorList = [];
    const dataList = [];
    sheet.eachRow(async (row, index) => {
      if (index !== 1) {
        const values = row.values;
        const obj = {};
        for (const m of meta) {
          const { required, key, index, method, column } = m;
          const value = values[index];
          if (required && !value) {
            // 必填且没值的情况
            errorList.push({ message: `第${index}行数据,缺少必填项 ${column};` });
            continue;
          }
          if (_.isFunction(method)) obj[key] = method(value);
          else obj[key] = value;
        }
        dataList.push(obj);
      }
    });
    if (errorList.length > 0) return errorList;
    for (const i of dataList) {
      try {
        await this.create(i);
      } catch (error) {
        errorList.push(error);
      }
    }

    return errorList;
  }

  importMeta() {
    return [
      { required: true, column: '用户名', key: 'name' },
      { required: true, column: '手机号', key: 'phone' },
      { required: true, column: '登录密码', key: 'password' },
      { required: true, column: '邀请码', key: 'code' },
      { column: '身份证号', key: 'card' },
      { column: '电子邮箱', key: 'email' },
      { column: '联系地址', key: 'addr' },
      { column: '办公电话', key: 'office_phone' },
      { column: '所属辖区', key: 'juris' },
      { column: '院校', key: 'school' },
      { column: '专业', key: 'major' },
      { column: '职务职称', key: 'zwzc' },
      { column: '审核状态', key: 'status' },
    ];
  }

  async export() {
    // 查询位置
    let skip = 0;
    // 一次处理多少条数据
    const limit = 500;
    const total = await this.model.count({ isdel: 0 });
    // 循环次数
    const times = _.ceil(_.divide(total, limit));
    const nowDate = new Date().getTime();
    // 文件 名称 及 路径
    const filename = `个人用户导出-${nowDate}.xlsx`;
    const root_path = _.get(this.ctx.app.config.export, 'root_path');
    if (!fs.existsSync(`${root_path}`)) {
      // 如果不存在文件夹,就创建
      fs.mkdirSync(`${root_path}`);
    }
    const excel_path = `${sep}excel${sep}`;
    const path = `${root_path}${excel_path}`;
    if (!fs.existsSync(path)) {
      // 如果不存在文件夹,就创建
      fs.mkdirSync(path);
    }
    // 流式写入
    const options = {
      filename: `${path}${filename}`,
    };
    const workbook = new Excel.stream.xlsx.WorkbookWriter(options);
    const sheet = workbook.addWorksheet('sheet');
    const eMeta = this.exportMeta();
    const eColumn = eMeta.map(i => i.key);
    let needDeal = eMeta.map((i, index) => {
      if (_.isFunction(_.get(i, 'method'))) {
        i.index = index;
        return i;
      }
    });
    needDeal = _.compact(needDeal);
    for (let i = 1; i <= times; i++) {
      if (i === 1) {
        const head = eMeta.map(i => i.zh);
        sheet.addRow(head).commit();
      }
      const data = await this.model.find({ isdel: 0 }, '+password').skip(skip).limit(limit);
      for (const d of data) {
        const dup = Object.values(_.pick(d, eColumn));
        // 处理特殊情况
        for (const nd of needDeal) {
          const { index, method } = nd;
          dup[index] = method(dup[index]);
        }
        // 添加数据
        sheet.addRow(dup).commit();
      }
      skip += limit;
    }
    sheet.commit();
    await workbook.commit();
    return `/files/excel/${filename}`;
  }

  exportMeta() {
    return [
      { key: 'name', zh: '用户名' },
      { key: 'phone', zh: '手机号' },
      { key: 'password', zh: '登录密码', method: i => _.get(i, 'secret') },
      { key: 'code', zh: '邀请码' },
      { key: 'card', zh: '身份证号' },
      { key: 'email', zh: '邮箱' },
      { key: 'addr', zh: '地址' },
      { key: 'office_phone', zh: '办公电话' },
      { key: 'juris', zh: '所属辖区' },
      { key: 'school', zh: '院系' },
      { key: 'major', zh: '专业' },
      { key: 'zwzc', zh: '职务职称' },
      { key: 'status', zh: '审核状态' },
    ];
  }
}

module.exports = PersonalService;