immich/mobile/lib/presentation/widgets/images/thumbnail_tile.widget.dart

import 'package:auto_route/auto_route.dart';
import 'package:flutter/material.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/domain/models/asset/base_asset.model.dart';
import 'package:immich_mobile/extensions/build_context_extensions.dart';
import 'package:immich_mobile/extensions/duration_extensions.dart';
import 'package:immich_mobile/extensions/theme_extensions.dart';
import 'package:immich_mobile/presentation/widgets/images/thumbnail.widget.dart';
import 'package:immich_mobile/providers/timeline/multiselect.provider.dart';

class ThumbnailTile extends ConsumerWidget {
  const ThumbnailTile(
    this.asset, {
    this.size = const Size.square(256),
    this.fit = BoxFit.cover,
    this.showStorageIndicator = true,
    this.lockSelection = false,
    super.key,
  });

  final BaseAsset asset;
  final Size size;
  final BoxFit fit;
  final bool showStorageIndicator;
  final bool lockSelection;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final heroOffset = TabsRouterScope.of(context)?.controller.activeIndex ?? 0;

    final assetContainerColor = context.isDarkTheme
        ? context.primaryColor.darken(amount: 0.4)
        : context.primaryColor.lighten(amount: 0.75);

    final isSelected = ref.watch(
      multiSelectProvider.select(
        (multiselect) => multiselect.selectedAssets.contains(asset),
      ),
    );

    final borderStyle = lockSelection
        ? BoxDecoration(
            color: context.colorScheme.surfaceContainerHighest,
            border: Border.all(
              color: context.colorScheme.surfaceContainerHighest,
              width: 6,
            ),
          )
        : isSelected
            ? BoxDecoration(
                color: assetContainerColor,
                border: Border.all(color: assetContainerColor, width: 6),
              )
            : const BoxDecoration();

    final hasStack =
        asset is RemoteAsset && (asset as RemoteAsset).stackCount > 0;

    return Stack(
      children: [
        AnimatedContainer(
          duration: Durations.short4,
          curve: Curves.decelerate,
          decoration: borderStyle,
          child: ClipRRect(
            borderRadius: isSelected || lockSelection
                ? const BorderRadius.all(Radius.circular(15.0))
                : BorderRadius.zero,
            child: Stack(
              children: [
                Positioned.fill(
                  child: Hero(
                    tag: '${asset.heroTag}_$heroOffset',
                    child: Thumbnail(
                      asset: asset,
                      fit: fit,
                      size: size,
                    ),
                  ),
                ),
                if (hasStack)
                  Align(
                    alignment: Alignment.topRight,
                    child: Padding(
                      padding: EdgeInsets.only(
                        right: 10.0,
                        top: asset.isVideo ? 24.0 : 6.0,
                      ),
                      child: _StackIndicator(
                        stackCount: (asset as RemoteAsset).stackCount,
                      ),
                    ),
                  ),
                if (asset.isVideo)
                  Align(
                    alignment: Alignment.topRight,
                    child: Padding(
                      padding: const EdgeInsets.only(right: 10.0, top: 6.0),
                      child: _VideoIndicator(asset.duration),
                    ),
                  ),
                if (showStorageIndicator)
                  switch (asset.storage) {
                    AssetState.local => const Align(
                        alignment: Alignment.bottomRight,
                        child: Padding(
                          padding: EdgeInsets.only(right: 10.0, bottom: 6.0),
                          child: _TileOverlayIcon(Icons.cloud_off_outlined),
                        ),
                      ),
                    AssetState.remote => const Align(
                        alignment: Alignment.bottomRight,
                        child: Padding(
                          padding: EdgeInsets.only(right: 10.0, bottom: 6.0),
                          child: _TileOverlayIcon(Icons.cloud_outlined),
                        ),
                      ),
                    AssetState.merged => const Align(
                        alignment: Alignment.bottomRight,
                        child: Padding(
                          padding: EdgeInsets.only(right: 10.0, bottom: 6.0),
                          child: _TileOverlayIcon(Icons.cloud_done_outlined),
                        ),
                      ),
                  },
                if (asset.isFavorite)
                  const Align(
                    alignment: Alignment.bottomLeft,
                    child: Padding(
                      padding: EdgeInsets.only(left: 10.0, bottom: 6.0),
                      child: _TileOverlayIcon(Icons.favorite_rounded),
                    ),
                  ),
              ],
            ),
          ),
        ),
        if (isSelected || lockSelection)
          Padding(
            padding: const EdgeInsets.all(3.0),
            child: Align(
              alignment: Alignment.topLeft,
              child: _SelectionIndicator(
                isSelected: isSelected,
                isLocked: lockSelection,
                color: lockSelection
                    ? context.colorScheme.surfaceContainerHighest
                    : assetContainerColor,
              ),
            ),
          ),
      ],
    );
  }
}

class _SelectionIndicator extends StatelessWidget {
  final bool isSelected;
  final bool isLocked;
  final Color? color;

  const _SelectionIndicator({
    required this.isSelected,
    required this.isLocked,
    this.color,
  });

  @override
  Widget build(BuildContext context) {
    if (isLocked) {
      return DecoratedBox(
        decoration: BoxDecoration(
          shape: BoxShape.circle,
          color: color,
        ),
        child: const Icon(
          Icons.check_circle_rounded,
          color: Colors.grey,
        ),
      );
    } else if (isSelected) {
      return DecoratedBox(
        decoration: BoxDecoration(
          shape: BoxShape.circle,
          color: color,
        ),
        child: Icon(
          Icons.check_circle_rounded,
          color: context.primaryColor,
        ),
      );
    } else {
      return const Icon(
        Icons.circle_outlined,
        color: Colors.white,
      );
    }
  }
}

class _StackIndicator extends StatelessWidget {
  final int stackCount;

  const _StackIndicator({required this.stackCount});

  @override
  Widget build(BuildContext context) {
    return Row(
      spacing: 3,
      mainAxisSize: MainAxisSize.min,
      mainAxisAlignment: MainAxisAlignment.end,
      // CrossAxisAlignment.start looks more centered vertically than CrossAxisAlignment.center
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(
          stackCount.toString(),
          style: const TextStyle(
            color: Colors.white,
            fontSize: 12,
            fontWeight: FontWeight.bold,
            shadows: [
              Shadow(
                blurRadius: 5.0,
                color: Color.fromRGBO(0, 0, 0, 0.6),
              ),
            ],
          ),
        ),
        const _TileOverlayIcon(Icons.burst_mode_rounded),
      ],
    );
  }
}

class _VideoIndicator extends StatelessWidget {
  final Duration duration;
  const _VideoIndicator(this.duration);

  @override
  Widget build(BuildContext context) {
    return Row(
      spacing: 3,
      mainAxisSize: MainAxisSize.min,
      mainAxisAlignment: MainAxisAlignment.end,
      // CrossAxisAlignment.start looks more centered vertically than CrossAxisAlignment.center
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(
          duration.format(),
          style: const TextStyle(
            color: Colors.white,
            fontSize: 12,
            fontWeight: FontWeight.bold,
            shadows: [
              Shadow(
                blurRadius: 5.0,
                color: Color.fromRGBO(0, 0, 0, 0.6),
              ),
            ],
          ),
        ),
        const _TileOverlayIcon(Icons.play_circle_outline_rounded),
      ],
    );
  }
}

class _TileOverlayIcon extends StatelessWidget {
  final IconData icon;

  const _TileOverlayIcon(this.icon);

  @override
  Widget build(BuildContext context) {
    return Icon(
      icon,
      color: Colors.white,
      size: 16,
      shadows: [
        const Shadow(
          blurRadius: 5.0,
          color: Color.fromRGBO(0, 0, 0, 0.6),
          offset: Offset(0.0, 0.0),
        ),
      ],
    );
  }
}