'use strict';


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

class CountService extends CrudService {
  constructor(ctx) {
    super(ctx, 'count');
    this.smodel = this.ctx.model.Student;
    this.tmodel = this.ctx.model.Trainplan;
    this.lmodel = this.ctx.model.Leave;
    this.schmodel = this.ctx.model.School;
  }

  // 查询
  async countstudent() {
    // 取得当前年份计划信息
    console.log(moment().format('YYYY'));
    const plan = await this.tmodel.findOne({ year: moment().format('YYYY') });
    if (!plan) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '当前全年计划不存在');
    }
    // 根据计划取得当前年份下计划培训学生人数
    const planstu = _.chain(plan.termnum).map('batchnum').flatten()
      .map('number');
    let _planstu = 0;
    for (const el of planstu) {
      _planstu = _.add(_planstu, parseInt(el));
    }
    const data = {};
    data.planstu = _planstu;
    // 根据计划取得学校上报的学生数
    const schstus = await this.smodel.find({ planid: plan.id });
    data.schstu = schstus.length;
    // 统计各个学校
    const _schools = _.map(schstus, 'school_name');
    // 取得无重复的寝室号
    const schools = _.uniq(_schools);
    const schs = [];
    for (const sch of schools) {
      const _schstunum = schstus.filter(item => item.school_name === sch);
      const newdata = { schname: sch, schnum: _schstunum.length };
      schs.push(newdata);
    }
    data.schs = schs;
    // 取得计划内已培训的学生数
    const trainstu = schstus.filter(item => item.openid);
    data.trainstu = trainstu.length;
    // 取得计划内未培训的学生数
    const notrainstu = schstus.filter(item => !item.openid);
    data.notrainstu = notrainstu.length;
    // 取得学生请假数和退出数
    const levelstus = [];
    // 循环取得所有请假和退出的学生信息
    for (const elm of trainstu) {
      const level = await this.lmodel.findOne({ studentid: elm.id, status: '1' });
      if (level) {
        levelstus.push(level);
      }
    }
    // 筛选出请假数和退出数
    const levelqj = levelstus.filter(item => item.type === '0');
    const levelexit = levelstus.filter(item => item.type === '1');
    data.levelqj = levelqj.length;
    data.levelexit = levelexit.length;
    return data;
  }

  // 按学校id统计查询
  async countschstu({ id }) {
    console.log(id);
    // 取得当前年份计划信息
    console.log(moment().format('YYYY'));
    const plan = await this.tmodel.findOne({ year: moment().format('YYYY') });
    if (!plan) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '当前全年计划不存在');
    }
    // 根据计划取得当前年份下计划学校培训学生人数
    const school = await this.schmodel.findOne({ code: id });
    if (!school) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '学校信息不存在');
    }
    const data = {};
    data.planstu = school.number;
    // 根据学校id取得学校上报的学生数
    const schstus = await this.smodel.find({ planid: plan.id, schid: id });
    data.schstu = schstus.length;
    // 取得已培训的学生数
    const trainstu = schstus.filter(item => item.openid);
    data.trainstu = trainstu.length;
    // 取得内未培训的学生数
    const notrainstu = schstus.filter(item => !item.openid);
    data.notrainstu = notrainstu.length;
    // 取得学生请假数和退出数
    const levelstus = [];
    // 循环取得所有请假和退出的学生信息
    for (const elm of trainstu) {
      const level = await this.lmodel.findOne({ studentid: elm.id, status: '1' });
      if (level) {
        levelstus.push(level);
      }
    }
    // 筛选出请假数和退出数
    const levelqj = levelstus.filter(item => item.type === '0');
    const levelexit = levelstus.filter(item => item.type === '1');
    data.levelqj = levelqj.length;
    data.levelexit = levelexit.length;
    return data;
  }

}

module.exports = CountService;