immich/mobile/lib/infrastructure/repositories/asset_media.repository.dart

import 'dart:typed_data';
import 'dart:ui';

import 'package:photo_manager/photo_manager.dart';

class AssetMediaRepository {
  const AssetMediaRepository();

  Future<Uint8List?> getThumbnail(String id, {int quality = 80, Size size = const Size.square(256)}) => AssetEntity(
    id: id,
    // The below fields are not used in thumbnailDataWithSize but are required
    // to create an AssetEntity instance. It is faster to create a dummy AssetEntity
    // instance than to fetch the asset from the device first.
    typeInt: AssetType.image.index,
    width: size.width.toInt(),
    height: size.height.toInt(),
  ).thumbnailDataWithSize(ThumbnailSize(size.width.toInt(), size.height.toInt()), quality: quality);
}