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

// 个人聊天房间表
class Person_roomService extends CrudService {
  constructor(ctx) {
    super(ctx, 'person_room');
    this.model = this.ctx.model.PersonRoom;
    this.pc = this.ctx.model.PersonChat;
  }
  async query(query) {
    query = this.ctx.service.util.util.turnDateRangeQuery(this.ctx.service.util.util.turnFilter(query));
    const { p_id, skip = 0, limit = 0, ...info } = query;
    const condition = { ...info }; // last_time: { $exists: true },
    if (p_id) {
      condition.$or = [{ p1_id: p_id }, { p2_id: p_id }];
    }
    let data = await this.model.find(condition).skip(parseInt(skip)).limit(parseInt(limit));
    const aggQuery = [
      { $match: { room_id: { $in: data.map(i => ObjectId(i._id)) }, is_read: false, receiver_id: ObjectId(p_id) } },
      {
        $group: {
          _id: '$room_id',
          sum: { $sum: 1 },
        },
      },
    ];
    const notReads = await this.pc.aggregate(aggQuery);
    if (data.length > 0) data = JSON.parse(JSON.stringify(data));
    data = data.map(i => {
      const nr = notReads.find(f => ObjectId(f._id).equals(i._id));
      if (nr) i.not_read = nr.sum;
      return i;
    });
    const total = await this.model.count(condition);
    return { data, total };
  }
  async create(payload) {
    const { p1_id, p2_id, product_id } = payload;
    const obj = await this.model.findOne({ $or: [{ p1_id, p2_id }, { p1_id: p2_id, p2_id: p1_id }], product_id });
    if (obj) return obj;
    const res = await this.model.create(payload);
    return res;
  }
}

module.exports = Person_roomService;