'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 QuestionnaireService extends CrudService {
  constructor(ctx) {
    super(ctx, 'qusetionnaire');
    this.questionnairemodel = this.ctx.model.Questionnaire;
    this.questionmodel = this.ctx.model.Question;
  }

  // 插入问卷
  async create(data) {
    const { name, num, type, question } = data;
    assert(name, '问卷名称不能为空');
    assert(num, '问卷序号不能为空');
    assert(type, '问卷类型不能为空');
    const quedata = [];
    for (const elm of question) {
      const ques = await this.questionmodel.findById(elm);
      if (ques) {
        quedata.push(ques);
      }
    }
    data.question = quedata;
    return await this.questionnairemodel.create(data);
  }

  // 根据id删除问卷
  async delete({ id }) {
    await this.questionnairemodel.findByIdAndDelete(id);
    return 'deleted';
  }

  // 根据id更新问卷信息
  async update({ id }, data) {
    const { name, num, type, question } = data;
    const questionnaire = await this.questionnairemodel.findById(id);
    if (name) {
      questionnaire.name = name;
    }
    if (num) {
      questionnaire.num = num;
    }
    if (type) {
      questionnaire.type = type;
    }
    if (question) {
      questionnaire.question = question;
    }
    return await questionnaire.save();
  }

  // 查询
  async query({ skip, limit, ...num }) {
    const total = await this.questionnairemodel.count(num);
    const data = await this.questionnairemodel.find(num).skip(Number(skip)).limit(Number(limit));
    const result = { total, data };
    return result;
  }

  // 查询详情
  async show({ id }) {
    const questionnaire = await this.questionnairemodel.findById(id);
    return questionnaire;
  }

}

module.exports = QuestionnaireService;