service-visit/app/service/groupchat.js

'use strict';

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

class GroupChatService extends CrudService {
  constructor(ctx) {
    super(ctx, 'groupchat');
    this.model = this.ctx.model.Groupchat;
    this.cGroup = this.ctx.model.Group;
    this.cDoctor = this.ctx.model.Doctor;
    this.cPatient = this.ctx.model.Patient;
  }

  async query({ groupid, sort = 1 }, { skip, limit }) {
    assert(groupid, 'groupid不能为空');
    const groupall = await this.model.find({ groupid });
    const groups = await this.model.find({ groupid }).sort({ sendtime: sort }).limit(limit)
      .skip(skip);
    const newgroups = [];
    for (const el of groups) {
      let icon;
      const { id, doctorid, doctorname, groupid, groupname, type, sendid, sendname, sendtime, contenttype, content, audiotime } = el;
      if (el.type === '1') {
        const patient = await this.cPatient.findById(el.sendid);
        if (patient) {
          icon = patient.icon;
        }
      }
      if (el.type === '0') {
        const doctor = await this.cDoctor.findById(el.sendid);
        if (doctor) icon = doctor.icon;
      }
      const group = { id, doctorid, doctorname, groupid, groupname, type, sendid, sendname, sendtime, contenttype, content, icon, audiotime };
      newgroups.push(group);
    }
    const result = { total: groupall.length, data: newgroups };
    return result;
  }

  // 创建群信息
  async create({ groupid }, data) {
    const { sendid, type, content, audiotime } = data;
    assert(sendid, '发送人不能为空');
    assert(type, '类别不能为空');
    assert(content, '发送内容不能为空');
    assert(groupid, '缺少群信息项');

    // 通过群id取得群内医生信息
    const group = await this.cGroup.findById(groupid, '+patients');
    if (!group) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '群不存在');
    }
    const doctor = await this.cDoctor.findById(group.doctorid);
    if (!doctor) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '医生不存在');
    }
    let sendname;
    let icon;
    if (type === '0') {
      sendname = doctor.name;
      icon = doctor.icon;
    } else {
      const patient = await this.cPatient.findById(sendid);
      if (!patient) {
        throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '患者信息不存在');
      }
      sendname = patient.name;
      icon = patient.icon;
    }
    // TODO: 检查是否已经注册
    const newdata = { doctorid: group.doctorid, audiotime, doctorname: doctor.name, groupid, groupname: group.name, type, sendid, sendname, sendtime: new Date().toLocaleString(), content, contenttype: data.contenttype };
    const entity = await this.model.create(newdata);

    // 调用mq发送消息 只有在医生的情况下才会触发群消息
    const exchange = 'group_chat';
    const routeKey = groupid;
    const contentMq = doctor.name + '医生的' + group.name + '群内发布了一条消息请及时查收。';
    const parm = {
      durable: true,
      headers: {
        sendid,
        groupid,
        icon,
        type,
        audiotime,
        sendname,
        createtime: new Date().toLocaleDateString(),
        content,
        contenttype: data.contenttype,
        remark: contentMq,
      },
    };
    const { mq } = this.ctx;
    if (mq) {
      await mq.fanout(exchange, routeKey, content, parm);
    } else {
      this.ctx.logger.error('!!!!!!没有配置MQ插件!!!!!!');
    }
    // 当医生发送群消息时微信提醒所有群内患者
    const self = this;
    if (type === '0') {
      for (const elem of group.patients) {
        await self.service.wechat.sendTemplateMsg(self.ctx.app.config.REVIEW_TEMPLATE_ID, elem.openid, contentMq, doctor.name, new Date().toLocaleDateString(), '群聊', '请及时查看');
      }
    }
    return await this.fetch({ id: entity.id });
  }

  async delete({ id }) {
    await this.model.findByIdAndDelete(id);
    return 'deleted';
  }
}

module.exports = GroupChatService;