'use strict';


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

class UploadquestionService extends CrudService {
  constructor(ctx) {
    super(ctx, 'uploadquestion');
    this.model = this.ctx.model.Uploadquestion;
    this.smodel = this.ctx.model.Student;
    this.tmodel = this.ctx.model.Trainplan;
    this.cmodel = this.ctx.model.Class;
  }

  // 完成度查询
  async completion(data) {
    const { type, typeid, trainplanid } = data;
    assert(type && typeid, '缺少部分信息项');
    const datas = [];
    let answertotal = '';
    let alltotal = '';
    // 如果是期查询
    if (type === '0') {
      const trainplan = await this.tmodel.findById(trainplanid);
      const term = await trainplan.termnum.id(typeid);
      const batchs = await term.batchnum;
      for (const batch of batchs) {
        // 取得当前期学生总数
        const allcount = await this.smodel.count({ batchid: batch.id });
        // 取得当前期学生答问卷数
        const answercount = await this.model.count({ batchid: batch.id });
        let completion = (answercount / allcount * 100).toFixed(2);
        completion = completion + '%';
        const newdata = { id: batch.id, name: batch.name, allcount, answercount, completion };
        datas.push(newdata);
      }
      // 取得当前期学生总数
      alltotal = await this.smodel.count({ termid: typeid });
      // 取得当前期学生答问卷数
      answertotal = await this.model.count({ termid: typeid });
    } else if (type === '1') {
      const classs = await this.cmodel.find({ batchid: typeid });
      for (const elm of classs) {
        // 取得当前期学生总数
        const allcount = await this.smodel.count({ classid: elm.id });
        // 取得当前期学生答问卷数
        const answercount = await this.model.count({ classid: elm.id });
        let completion = (answercount / allcount * 100).toFixed(2);
        completion = completion + '%';
        const newdata = { id: elm.id, name: elm.name, allcount, answercount, completion };
        datas.push(newdata);
      }
      // 取得当前期学生总数
      alltotal = await this.smodel.count({ batchid: typeid });
      // 取得当前期学生答问卷数
      answertotal = await this.model.count({ batchid: typeid });
    } else if (type === '2') {
      // 取得当前期学生总数
      const stus = await this.smodel.find({ classid: typeid });
      for (const elm of stus) {
        // 取得当前期学生答问卷数
        const answer = await this.model.find({ studentid: elm.id });
        let completion = '';
        if (answer) {
          completion = '100%';
        } else {
          completion = '0%';
        }
        const newdata = { id: elm.id, name: elm.name, completion };
        datas.push(newdata);
      }
      // 取得当前期学生总数
      alltotal = await this.smodel.count({ classid: typeid });
      // 取得当前期学生答问卷数
      answertotal = await this.model.count({ classid: typeid });

    }
    let completiontotal = (answertotal / alltotal * 100).toFixed(2);
    completiontotal = completiontotal + '%';
    const newdata = { data: datas, answertotal, alltotal, completiontotal };
    return newdata;
  }

}

module.exports = UploadquestionService;