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

// 调研调查
class QuestionService extends CrudService {
  constructor(ctx) {
    super(ctx, 'question');
    this.model = this.ctx.model.News.Question;
    this.solic = this.ctx.model.News.ProjectSolic;
  }
  async query(query) {
    const { skip = 0, limit = 0, user_id, exist, ...condition } = query;
    let data = [];
    let total = 0;
    if (!user_id) {
      data = await this.model.find(condition).skip(parseInt(skip)).limit(parseInt(limit));
      total = await this.model.count(condition);
    } else {
      if (exist === undefined) {
        data = await this.model.find(condition).skip(parseInt(skip)).limit(parseInt(limit));
        data = await this.checkExist(data, user_id);
        total = await this.model.count(condition);
      } else {
        data = await this.model.find(condition);
        data = await this.checkExist(data, user_id);
        data = data.filter(f => `${f.exist}` === `${exist}`);
        total = data.length;
        data = _.slice(data, skip, limit === 0 ? '10' : limit);
      }
    }

    return { data, total };
  }

  async checkExist(data, user_id) {
    if (data.length > 0) {
      const ids = data.map(i => i._id);
      const list = await this.solic.find({ question_id: ids, user_id }, '_id question_id');
      data = JSON.parse(JSON.stringify(data));
      data = data.map(i => {
        const res = list.find(f => ObjectId(i._id).equals(f.question_id));
        if (res)i.exist = true;
        else i.exist = false;
        return i;
      });
    }
    return data;
  }
}

module.exports = QuestionService;