RocketChat/Rocket.Chat

import type { IMessage } from '@rocket.chat/core-typings';
import type { ServerMethods } from '@rocket.chat/ddp-client';
import { Messages, Users, Rooms } from '@rocket.chat/models';
import { check } from 'meteor/check';
import { Meteor } from 'meteor/meteor';

import { canAccessRoomAsync } from '../../../authorization/server';

declare module '@rocket.chat/ddp-client' {
    // eslint-disable-next-line @typescript-eslint/naming-convention
    interface ServerMethods {
        getUserMentionsByChannel(params: { roomId: string; options: { limit: number; sort: { ts: -1 | 1 } } }): IMessage[];
    }
}

Meteor.methods<ServerMethods>({
    async getUserMentionsByChannel({ roomId, options }) {
        check(roomId, String);

        const uid = Meteor.userId();

        if (!uid) {
            throw new Meteor.Error('error-invalid-user', 'Invalid user', {
                method: 'getUserMentionsByChannel',
            });
        }

        const user = await Users.findOneById(uid);
        if (!user) {
            throw new Meteor.Error('error-invalid-user', 'Invalid user');
        }

        const room = await Rooms.findOneById(roomId);

        if (!room || !(await canAccessRoomAsync(room, user))) {
            throw new Meteor.Error('error-invalid-room', 'Invalid room', {
                method: 'getUserMentionsByChannel',
            });
        }

        return Messages.findVisibleByMentionAndRoomId(user.username, roomId, options).toArray();
    },
});