/*
 * https://github.com/morethanwords/tweb
 * Copyright (C) 2019-2021 Eduard Kuzmenko
 * https://github.com/morethanwords/tweb/blob/master/LICENSE
 */

import type { MyDocument } from "../lib/appManagers/appDocsManager";
import type { MyPhoto } from "../lib/appManagers/appPhotosManager";
import type { ThumbCache } from "../lib/storages/thumbs";
import getImageFromStrippedThumb from "./getImageFromStrippedThumb";

export default function getStrippedThumbIfNeeded(photo: MyPhoto | MyDocument, cacheContext: ThumbCache, useBlur: boolean, ignoreCache = false) {
  if(!cacheContext.downloaded || (['video', 'gif'] as MyDocument['type'][]).includes((photo as MyDocument).type) || ignoreCache) {
    if(photo._ === 'document' && cacheContext.downloaded && !ignoreCache) {
      return null;
    }

    const sizes = (photo as MyPhoto).sizes || (photo as MyDocument).thumbs;
    const thumb = sizes?.length ? sizes.find((size) => size._ === 'photoStrippedSize') : null;
    if(thumb && ('bytes' in thumb)) {
      return getImageFromStrippedThumb(photo, thumb as any, useBlur);
    }
  }

  return null;
}