service-center/app/service/student.js

'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 StudentService extends CrudService {
  constructor(ctx) {
    super(ctx, 'student');
    this.model = this.ctx.model.Student;
    this.umodel = this.ctx.model.User;
    this.tmodel = this.ctx.model.Trainplan;
    this.clamodel = this.ctx.model.Class;
    this.upmodel = this.ctx.model.Uploadtask;
    this.gmodel = this.ctx.model.Group;
    this.psmodel = this.ctx.model.Personalscore;
    this.gsmodel = this.ctx.model.Groupscore;
  }

  async create(data) {
    const { name, phone: mobile, gender } = data;
    const res = await this.model.create(data);
    if (res) {
      const obj = { name, mobile, gender, type: '4', passwd: '12345678', uid: res._id };
      const user = await this.ctx.service.user.create(obj);
    }
    return res;
  }


  // 查询
  async query({ skip, limit, ...info }) {
    const { termid, classid } = info;
    if (!classid) {
      const classes = await this.clamodel.find({ termid });
      for (const cla of classes) {
        await this.arrangeNumber(cla._id);
      }
    } else { await this.arrangeNumber(classid); }
    const total = await this.model.count(info);
    const res = await this.model
      .find(info)
      .skip(Number(skip))
      .limit(Number(limit));
    const data = [];
    for (const elm of res) {
      const plan = await this.tmodel.findOne({
        'termnum._id': ObjectId(elm.termid),
      });
      const newdata = { ...JSON.parse(JSON.stringify(elm)) };
      if (plan) {
        const term = await plan.termnum.id(elm.termid);
        newdata.termname = term.term;
        if (elm.batchid) {
          const _batch = await term.batchnum.id(elm.batchid);
          newdata.batchname = _batch.batch;
        }
      }
      if (elm.classid) {
        const classs = await this.clamodel.findById(elm.classid);
        if (classs) {
          newdata.classname = classs.name;
        }
      }
      data.push(newdata);
    }
    const result = { total, data };
    return result;
  }

  // 查询
  async seek({ termid, type, batchid, skip, limit }) {
    const total = await this.model.count({
      termid,
      type,
      batchid,
      $or: [{ classid: null }, { classid: '' }],
    });
    const data = await this.model
      .find({ termid, type, batchid, $or: [{ classid: null }, { classid: '' }] })
      .skip(Number(skip))
      .limit(Number(limit));
    const result = { total, data };
    return result;
  }

  async findbedroom(data) {
    const { batchid, classid } = data;
    const result = [];
    // 如果传的是批次id
    if (batchid) {
      // 查询该批次下的所有学生
      const students = await this.model.find({ batchid });
      const bedroomList = new Set();
      // 查询该批次的所有寝室号
      for (const student of students) {
        bedroomList.add(student.bedroom);
      }
      let studentList = [];
      // 查询该批次所有寝室下的学生名单
      for (const bedroom of bedroomList) {
        const newstudents = await this.model.find({ bedroom });
        for (const newstudent of newstudents) {
          studentList.push(newstudent.name);
        }
        result.push({ bedroom, studentList });
        studentList = [];
      }
    }
    // 如果传的是班级id
    if (classid) {
      // 查询该班级所有学生
      const students = await this.model.find({ classid });
      const bedroomList = new Set();
      // 查询该班级所有寝室号
      for (const student of students) {
        bedroomList.add(student.bedroom);
      }
      let studentList = [];
      // 查询该班级所有寝室的学生名单
      for (const bedroom of bedroomList) {
        const newstudents = await this.model.find({ bedroom });
        for (const newstudent of newstudents) {
          // 如果寝室中有非本班级学生（混寝），则过滤掉不予显示
          if (newstudent.classid === classid) {
            studentList.push(newstudent.name);
          }
        }
        result.push({ bedroom, studentList });
        studentList = [];
      }
    }
    return result;
  }

  async upjob(data) {
    const { stuid, job } = data;
    const student = await this.model.findById(stuid);
    student.job = job;
    if (job === '班长' || job === '学委') {
      const user = await this.umodel.findOne({ uid: stuid, type: '4' });
      const date = await this.ctx.service.util.updatedate();
      const openid = user.openid;
      const detail = '你已被班主任设置为' + job + ',请及时登录查看';
      const remark = '感谢您的使用';
      if (openid) {
        this.ctx.service.weixin.sendTemplateMsg(
          this.ctx.app.config.REVIEW_TEMPLATE_ID,
          openid,
          '您有一个新的通知',
          detail,
          date,
          remark
        );
      }
    }
    return await student.save();
  }

  // 根据学生id删除班级
  async deleteclass(data) {
    for (const el of data) {
      const student = await this.model.findById(el);
      if (student) {
        student.classid = '';
        await student.save();
      }
    }
  }

  // 根据班级id查出班级各个学生的分数
  async findscore({ skip, limit, ...info }) {
    const { classid } = info;
    const total = await this.model.count(info);
    const students = await this.model
      .find(info)
      .skip(Number(skip))
      .limit(Number(limit));
    const data = [];
    const groups = await this.gmodel.find({ classid });
    for (const student of students) {
      const _student = JSON.parse(JSON.stringify(student));
      const group = groups.find(item =>
        item.students.find(stuinfo => stuinfo.stuid === _student.id)
      );
      console.log(group);
      if (group) {
        _student.groupscore = group.score;
      }
      const tasks = await this.upmodel.find({ studentid: _student.id });
      _student.tasks = tasks;
      data.push(_student);
    }

    return { total, data };
  }

  async findbystuids({ data }) {
    const res = [];
    for (const stuid of data) {
      const stu = await this.model.findById(stuid);
      if (stu)res.push(stu);
    }
    return res;
  }

  // 根据学生id删除学生
  async deletestus(data) {
    for (const el of data) {
      await this.model.deleteOne({ _id: ObjectId(el) });
    }
  }

  // 批量更新寝室号
  async updatabedroom(data) {
    for (const el of data) {
      const student = await this.model.findById(el.id);
      if (student) {
        student.bedroom = el.bedroom;
        await student.save();
      }
    }
  }

  /**
   * 计算班级的优秀学生
   * 规则:班级干部(学生的job!=='普通学生'),检查是否有评优资格(is_fine_status==='0'可以评优),全部评优;
   *     普通学生取总成绩前10的人评优(非10位并列时,名额该占用就占用;第10名若有并列,就全都要)
   * @param {String} param0 {id=>班级id}
   */
  async getFineStudent({ id: classid }) {
    // 获取班级学生列表
    let studentList = await this.model.find({ classid });
    // 重置评优,干部全优秀
    studentList = studentList.map(i => {
      if (i.job.includes('普通')) i.is_fine = '0';
      else i.is_fine = '1';
      return i;
    });
    // 初始化后取出不需要算的人,他们就这样,没必要算
    const reverseList = studentList.filter(f => !(f.is_fine !== '2' && f.job.includes('普通')));
    // 过滤出取消评优资格的学生和干部;干部就是优秀;被取消资格就别凑热闹了
    studentList = studentList.filter(f => f.is_fine !== '2' && f.job.includes('普通'));
    // 获取平时分
    const dailyScoreList = await this.psmodel.find({ classid });
    studentList = this.dealScoreList(dailyScoreList, studentList);
    // 获取作业分
    const taskScoreList = await this.upmodel.find({ classid });
    studentList = this.dealScoreList(taskScoreList, studentList);
    // 获取小组分,小组
    const groupList = await this.gmodel.find({ classid });
    const groupScoreList = await this.gsmodel.find({ classid });
    studentList = this.dealGroupScoreList(groupList, groupScoreList, studentList);
    studentList = studentList.sort((a, b) => (b.score * 1 || 0) - (a.score * 1 || 0));
    // 排名
    // eslint-disable-next-line no-unused-vars
    let num = 0;
    for (const student of studentList) {
      // 先判断是否超过第10位,超过就跳出
      if (num > 10) break;
      const { score, is_fine } = student;
      // 最开始初始化过所有人的状态,并且将干部和不能评优的人都过滤出去,所以正常学生应该都是没有评优,如果此处已经是优秀,那么就是和前人同分改的,直接跳过就好
      if (is_fine === '1') continue;
      // 没有分凑什么热闹
      if (!score) continue;
      let plus = 1; // 这轮有多少人,到这了,这个人肯定是要改了,所以默认1
      // 评优
      student.is_fine = '1';
      const rlist = studentList.filter(f => f.score === score);
      // 处理同分的人也都变成is_fine
      for (const stud of rlist) {
        stud.is_fine = '1';
        const sindex = studentList.findIndex(f => ObjectId(stud._id).equals(f._id));
        if (sindex >= 0) {
          studentList[sindex] = stud;
          plus++;
        }
      }
      // num+plus,算下num
      num = num + plus;
    }
    // 算完的和不用算的合并,提交
    const lastList = [ ...studentList, ...reverseList ];
    for (const student of lastList) {
      const res = await student.save();
      // const { meta, ...data } = student;
      // const r = await this.model.findByIdAndUpdate(
      //   { _id: ObjectId(student._id) },
      //   data
      // );
      console.log(res);
    }

  }
  /**
   * 将分数放到学生身上
   * @param {Array} scoreList 班级的分数列表
   * @param {Array} studentList 学生列表
   */
  dealScoreList(scoreList, studentList) {
    scoreList = _.groupBy(scoreList, 'studentid');
    studentList = studentList.map(i => {
      const slist = scoreList[i._id];
      if (slist)i.score = (i.score * 1 || 0) + slist.reduce((p, n) => p + (n.score * 1 || 0), 0);
      return i;
    });
    return studentList;
  }
  /**
   * 将 学生所在 组的 团队平均分 + 到学生身上
   * @param {Array} groupList 班级的小组的列表
   * @param {Array} scoreList 所有小组的分数列表
   * @param {Array} studentList 学生列表
   */
  dealGroupScoreList(groupList, scoreList, studentList) {
    // console.log(groupList);
    scoreList = _.groupBy(scoreList, 'groupid');
    // 算出每组的平均分,之后加给学生
    groupList = groupList.map(i => {
      const { students } = i;
      if (students.length > 0) {
        const slist = scoreList[i._id];
        if (slist) {
          i.score = slist.reduce((p, n) => p + (n.score * 1 || 0), 0);
          i.score = _.floor(_.divide(i.score, students.length), 2);
        }
      }

      return i;
    });
    // 每个学生加自己的组的平均分
    studentList = studentList.map(i => {
      const r = groupList.find(f => f.students.find(sf => ObjectId(sf.stuid).equals(i._id)));
      if (r) i.score = (i.score * 1 || 0) + (r.score * 1 || 0);
      return i;
    });
    return studentList;
  }

  // 将学生排号
  async arrangeNumber(classid) {
    const studList = await this.model.find({ classid });
    console.log(`in function:arrangeNumber classid=>${classid}`);
    let number = 1;
    // 查每个学生的编号,如果没有,就给赋上值;有,就给number赋上值,然后继续下一位
    for (const stu of studList) {
      if (!stu.number) {
        if (number * 1 < 10)stu.number = `0${number}`;
        else stu.number = number;
        await stu.save();
      } else {
        number = stu.number * 1;
      }
      number = number * 1 + 1;
    }
    console.log(`last number => ${number}`);
  }
}

module.exports = StudentService;