'use strict';
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const { ObjectId } = require('mongoose').Types;
const _ = require('lodash');
const assert = require('assert');

// 首页-数据动态统计
class IndexService extends CrudService {
  constructor(ctx) {
    super(ctx, 'index');
    this.redis = this.app.redis;
    this.patentModel = this.ctx.model.Patent;
    this.code = this.ctx.model.Code;
    this.productModel = this.ctx.model.Product;
    this.expertModel = this.ctx.model.Expert;
    // this.userModel = this.ctx.model.User;
    this.personalModel = this.ctx.model.Personal;
    this.organizationModel = this.ctx.model.Organization;
    this.surveyModel = this.ctx.model.Survey;
    this.dockUser = this.ctx.model.DockUser;
    this.tranModel = this.ctx.model.Transaction;
  }
  /**
   * 首页专利统计
   */
  async patent() {
    const res = await this.patentModel.aggregate([
      {
        $group: {
          _id: '$apply_personal',
          value: { $sum: 1 },
        },
      },
    ]);
    let arr = [];
    const other = { name: '其他', value: 0 };
    for (const i of res) {
      const { _id, value } = i;
      const unitList = this.patentUnitList();
      const unit = unitList.find(
        f => (_id && _id.includes(f.name)) || f.name.includes(_id)
      );
      if (unit) {
        // 说明是需要单拎出来的数据,现查arr中是否有该单位:有=>数字合并;没有=>创建条目
        const { name } = unit;
        const arrItem = arr.find(f => f.name === name);
        if (arrItem) {
          const index = arr.findIndex(f => f.name === name);
          arr[index] = { name, value: (arrItem.value || 0) + value };
        } else {
          arr.push({ name, value });
        }
      } else {
        other.value += value;
      }
    }
    arr = _.orderBy(arr, [ 'value' ], [ 'desc' ]);
    arr.push(other);
    return arr;
  }

  /**
   * 首页成果统计
   */
  async product() {
    const categroy = await this.code.find({ category: '01' });
    const condition = { type: '1', status: '2' };
    const arr = [];
    for (const c of categroy) {
      const { name } = c;
      const value = await this.productModel.count({
        ...condition,
        field: name,
      });
      arr.push({ value, name });
    }
    return arr;
  }

  /**
   * 首页统计专家
   */
  async expert() {
    const res = await this.expertModel.aggregate([
      {
        $group: {
          _id: '$company',
          value: { $sum: 1 },
        },
      },
    ]);
    let arr = [];
    const other = { name: '其他', value: 0 };
    for (const i of res) {
      const { _id, value } = i;
      const unitList = this.expertList();
      const unit = unitList.find(
        f => (_id && _id.includes(f.name)) || f.name.includes(_id)
      );
      if (unit) {
        // 说明是需要单拎出来的数据,现查arr中是否有该单位:有=>数字合并;没有=>创建条目
        const { name, sort } = unit;
        const arrItem = arr.find(f => f.name === name);
        if (arrItem) {
          const index = arr.findIndex(f => f.name === name);
          arr[index] = { ...arr[index], value: (arrItem.value || 0) + value };
        } else {
          arr.push({ name, value, sort });
        }
      } else {
        other.value += value;
      }
    }
    arr = _.orderBy(arr, [ 'sort' ], [ 'asc' ]);
    arr.push(other);
    // 换名
    arr.map(i => {
      const r = this.expertList().find(f => f.name === i.name);
      if (r && r.alias) i.name = r.alias;
      return i;
    });
    return arr;
  }

  /**
   * 首页数据统计
   */
  async circle() {
    const arr = [];
    const organization = await this.organizationModel.count({ status: '1' });
    arr.push({
      name: '企业注册数量',
      value: organization,
    });
    // TODO:如果需要专家和个人用户区分开,则is_expert:false, 混查则不需要is_expert条件
    const user = await this.personalModel.count({ status: '1', is_expert: false });
    arr.push({
      name: '个人注册数量',
      value: user,
    });
    const exports = await this.expertModel.count();
    arr.push({
      name: '专家注册数量',
      value: exports,
    });
    const products = await this.productModel.count({ status: '2' });
    arr.push({
      name: '产品发布数量',
      value: products,
    });
    const surveys = await this.surveyModel.count();
    arr.push({
      name: '交流互动',
      value: surveys,
    });
    const trans = await this.tranModel.aggregate([
      { $match: { status: { $in: [ '0', '1', '3' ] } } },
      {
        $group: {
          _id: '$status',
          value: { $sum: 1 },
        },
      },
    ]);
    arr.push({
      name: '正在洽谈',
      value: _.get(trans.find(f => f._id === '0'), 'value', 0),
    });
    arr.push({
      name: '达成意向',
      value: _.get(trans.find(f => f._id === '1'), 'value', 0),
    });
    arr.push({
      name: '对接完成',
      value: _.get(trans.find(f => f._id === '3'), 'value', 0),
    });
    return arr;
  }


  /**
   * 专家列表
   */
  expertList() {
    return [
      { name: '中科院长春光学精密机械与物理研究所', alias: '光机所', sort: 1 },
      { name: '中国科学院长春应用化学研究所', alias: '应化所', sort: 2 },
      { name: '中国科学院东北地理与农业生态研究所', alias: '地理所', sort: 3 },
      { name: '吉林大学', sort: 4 },
      { name: '长春工业大学', sort: 5 },
    ];
  }

  /**
   * 专利单位列表
   */
  patentUnitList() {
    return [
      { name: '吉林大学' },
      { name: '长春理工大学' },
      { name: '东北电力大学' },
      { name: '吉林工程技术师范学院' },
      { name: '长春工业大学' },
      { name: '北华大学' },
      { name: '吉林农业大学' },
      { name: '吉林师范大学' },
      { name: '长春工程学院' },
      { name: '吉林建筑大学' },
      { name: '通化师范学院' },
      { name: '长春大学' },
      { name: '东北师范大学' },
      { name: '吉林农业科技学院' },
    ];
  }

  // 展会首页统计
  async dockIndex({ dock_id }) {
    // 同时在线人数(伪)
    const tszx = await this.redis.get('login_number');
    // 特邀嘉宾
    const tyjb = await this.personalModel.count({ is_expert: true });
    // 洽谈合作 达成意向 交易完成
    const trans = await this.tranModel.aggregate([
      { $match: { status: { $in: [ '0', '1', '3' ] } } },
      {
        $group: {
          _id: '$status',
          value: { $sum: 1 },
        },
      },
    ]);
    const qthz = _.get(trans.find(f => f._id === '0'), 'value', 0);
    const dcyx = _.get(trans.find(f => f._id === '1'), 'value', 0);
    const jywc = _.get(trans.find(f => f._id === '3'), 'value', 0);
    // 参展项目
    const res = await this.dockUser.aggregate()
      .match({ dock_id: ObjectId(dock_id), 'goodsList.type': '1', 'goodsList.dockStatus': '1' })
      .unwind('$goodsList')
      .group({
        _id: '$dock_id',
        count: { $sum: 1 },
      });
    const czxm = _.get(res[0], 'count');
    const arr = [
      { name: '同时在线', num: tszx, unit: '人' },
      { name: '特邀嘉宾', num: tyjb, unit: '人' },
      { name: '洽谈合作', num: qthz, unit: '项' },
      { name: '达成意向', num: dcyx, unit: '项' },
      { name: '交易完成', num: jywc, unit: '项' },
      { name: '参展项目', num: czxm, unit: '项' },
    ];
    return arr;

  }
}

module.exports = IndexService;