RocketChat/Rocket.Chat

import type { IUpload } from '@rocket.chat/core-typings';

import { RecordList } from './RecordList';

type FilesMessage = Omit<IUpload, 'rid'> & Required<Pick<IUpload, 'rid'>>;

export type ImagesListOptions = {
    roomId: Required<IUpload>['rid'];
    startingFromId?: string;
    count?: number;
    offset?: number;
};

const isFileMessageInRoom = (upload: IUpload, rid: IUpload['rid']): upload is FilesMessage => upload.rid === rid && 'rid' in upload;

export class ImagesList extends RecordList<IUpload> {
    public constructor(private _options: ImagesListOptions) {
        super();
    }

    public get options(): ImagesListOptions {
        return this._options;
    }

    public updateFilters(options: ImagesListOptions): void {
        this._options = options;
        this.clear();
    }

    protected filter(message: IUpload): boolean {
        const { roomId } = this._options;

        if (!isFileMessageInRoom(message, roomId)) {
            return false;
        }

        return true;
    }
}