'use strict';


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

class ChatService extends CrudService {
  constructor(ctx) {
    super(ctx, 'chat');
    this.model = this.ctx.model.Chat;
  }

  async create(data) {
    const { sendid, content, roomid } = data;
    assert(sendid, '缺少发言人信息');
    assert(roomid, '缺少房间信息');
    assert(content, '缺少发言内容');
    data.sendtime = moment().format('YYYY-MM-DD HH:mm:ss');
    const res = await this.model.create(data);
    // TODO MQ
    const { mq } = this.ctx;
    if (mq) {
      const exchange = 'public_chat_' + roomid;
      const parm = {
        durable: true,
        headers: {
          userid: sendid,
        } };
      await mq.fanout(exchange, roomid, JSON.stringify(res), parm);
    }
    return res;
  }

}

module.exports = ChatService;