immich/mobile/lib/modules/home/ui/thumbnail_image.dart

import 'package:auto_route/auto_route.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/constants/hive_box.dart';
import 'package:immich_mobile/modules/home/providers/home_page_state.provider.dart';
import 'package:immich_mobile/shared/models/immich_asset.model.dart';
import 'package:immich_mobile/routing/router.dart';

class ThumbnailImage extends HookConsumerWidget {
  final ImmichAsset asset;

  const ThumbnailImage({Key? key, required this.asset}) : super(key: key);

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final cacheKey = useState(1);

    var box = Hive.box(userInfoBox);
    var thumbnailRequestUrl =
        '${box.get(serverEndpointKey)}/asset/file?aid=${asset.deviceAssetId}&did=${asset.deviceId}&isThumb=true';

    var selectedAsset = ref.watch(homePageStateProvider).selectedItems;
    var isMultiSelectEnable = ref.watch(homePageStateProvider).isMultiSelectEnable;

    Widget _buildSelectionIcon(ImmichAsset asset) {
      if (selectedAsset.contains(asset)) {
        return Icon(
          Icons.check_circle,
          color: Theme.of(context).primaryColor,
        );
      } else {
        return const Icon(
          Icons.circle_outlined,
          color: Colors.white,
        );
      }
    }

    return GestureDetector(
      onTap: () {
        if (isMultiSelectEnable && selectedAsset.contains(asset) && selectedAsset.length == 1) {
          ref.watch(homePageStateProvider.notifier).disableMultiSelect();
        } else if (isMultiSelectEnable && selectedAsset.contains(asset) && selectedAsset.length > 1) {
          ref.watch(homePageStateProvider.notifier).removeSingleSelectedItem(asset);
        } else if (isMultiSelectEnable && !selectedAsset.contains(asset)) {
          ref.watch(homePageStateProvider.notifier).addSingleSelectedItem(asset);
        } else {
          if (asset.type == 'IMAGE') {
            AutoRouter.of(context).push(
              ImageViewerRoute(
                imageUrl:
                    '${box.get(serverEndpointKey)}/asset/file?aid=${asset.deviceAssetId}&did=${asset.deviceId}&isThumb=false',
                heroTag: asset.id,
                thumbnailUrl: thumbnailRequestUrl,
                asset: asset,
              ),
            );
          } else {
            debugPrint("Navigate to video player");

            AutoRouter.of(context).push(
              VideoViewerRoute(
                videoUrl: '${box.get(serverEndpointKey)}/asset/file?aid=${asset.deviceAssetId}&did=${asset.deviceId}',
              ),
            );
          }
        }
      },
      onLongPress: () {
        // Enable multi selecte function
        ref.watch(homePageStateProvider.notifier).enableMultiSelect({asset});
        HapticFeedback.heavyImpact();
      },
      child: Hero(
        tag: asset.id,
        child: Stack(
          children: [
            Container(
              decoration: BoxDecoration(
                border: isMultiSelectEnable && selectedAsset.contains(asset)
                    ? Border.all(color: Theme.of(context).primaryColorLight, width: 10)
                    : const Border(),
              ),
              child: CachedNetworkImage(
                cacheKey: "${asset.id}-${cacheKey.value}",
                width: 300,
                height: 300,
                memCacheHeight: asset.type == 'IMAGE' ? 250 : 400,
                fit: BoxFit.cover,
                imageUrl: thumbnailRequestUrl,
                httpHeaders: {"Authorization": "Bearer ${box.get(accessTokenKey)}"},
                fadeInDuration: const Duration(milliseconds: 250),
                progressIndicatorBuilder: (context, url, downloadProgress) => Transform.scale(
                  scale: 0.2,
                  child: CircularProgressIndicator(value: downloadProgress.progress),
                ),
                errorWidget: (context, url, error) {
                  debugPrint("Error Loading Thumbnail Widget $error");
                  cacheKey.value += 1;
                  return const Icon(Icons.error);
                },
              ),
            ),
            Container(
              child: isMultiSelectEnable
                  ? Padding(
                      padding: const EdgeInsets.all(3.0),
                      child: Align(
                        alignment: Alignment.topLeft,
                        child: _buildSelectionIcon(asset),
                      ),
                    )
                  : Container(),
            ),
          ],
        ),
      ),
    );
  }
}