immich/mobile/lib/widgets/activities/activity_tile.dart

import 'package:flutter/material.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/extensions/build_context_extensions.dart';
import 'package:immich_mobile/extensions/datetime_extensions.dart';
import 'package:immich_mobile/models/activities/activity.model.dart';
import 'package:immich_mobile/providers/image/immich_remote_thumbnail_provider.dart';
import 'package:immich_mobile/providers/asset_viewer/current_asset.provider.dart';
import 'package:immich_mobile/widgets/common/user_circle_avatar.dart';

class ActivityTile extends HookConsumerWidget {
  final Activity activity;

  const ActivityTile(this.activity, {super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final asset = ref.watch(currentAssetProvider);
    final isLike = activity.type == ActivityType.like;
    // Asset thumbnail is displayed when we are accessing activities from the album page
    // currentAssetProvider will not be set until we open the gallery viewer
    final showAssetThumbnail = asset == null && activity.assetId != null;

    return ListTile(
      minVerticalPadding: 15,
      leading: isLike
          ? Container(
              width: 44,
              alignment: Alignment.center,
              child: Icon(Icons.favorite_rounded, color: Colors.red[700]),
            )
          : UserCircleAvatar(user: activity.user),
      title: _ActivityTitle(
        userName: activity.user.name,
        createdAt: activity.createdAt.timeAgo(),
        leftAlign: isLike || showAssetThumbnail,
      ),
      // No subtitle for like, so center title
      titleAlignment: !isLike ? ListTileTitleAlignment.top : ListTileTitleAlignment.center,
      trailing: showAssetThumbnail ? _ActivityAssetThumbnail(activity.assetId!) : null,
      subtitle: !isLike ? Text(activity.comment!) : null,
    );
  }
}

class _ActivityTitle extends StatelessWidget {
  final String userName;
  final String createdAt;
  final bool leftAlign;

  const _ActivityTitle({required this.userName, required this.createdAt, required this.leftAlign});

  @override
  Widget build(BuildContext context) {
    final textColor = context.isDarkTheme ? Colors.white : Colors.black;
    final textStyle = context.textTheme.bodyMedium?.copyWith(color: textColor.withValues(alpha: 0.6));

    return Row(
      mainAxisAlignment: leftAlign ? MainAxisAlignment.start : MainAxisAlignment.spaceBetween,
      mainAxisSize: leftAlign ? MainAxisSize.min : MainAxisSize.max,
      children: [
        Text(userName, style: textStyle, overflow: TextOverflow.ellipsis),
        if (leftAlign) Text(" • ", style: textStyle),
        Expanded(
          child: Text(
            createdAt,
            style: textStyle,
            overflow: TextOverflow.ellipsis,
            textAlign: leftAlign ? TextAlign.left : TextAlign.right,
          ),
        ),
      ],
    );
  }
}

class _ActivityAssetThumbnail extends StatelessWidget {
  final String assetId;

  const _ActivityAssetThumbnail(this.assetId);

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 40,
      height: 30,
      decoration: BoxDecoration(
        borderRadius: const BorderRadius.all(Radius.circular(4)),
        image: DecorationImage(
          image: ImmichRemoteThumbnailProvider(assetId: assetId),
          fit: BoxFit.cover,
        ),
      ),
      child: const SizedBox.shrink(),
    );
  }
}