fluffychat/lib/pangea/toolbar/widgets/pangea_reaction_picker.dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

import 'package:matrix/matrix.dart';

import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/config/app_emojis.dart';
import 'package:fluffychat/pages/chat/chat.dart';
import 'package:fluffychat/pangea/events/models/pangea_token_model.dart';
import 'package:fluffychat/pangea/toolbar/widgets/message_selection_overlay.dart';

class PangeaReactionsPicker extends StatelessWidget {
  final ChatController controller;
  final MessageOverlayController? overlayController;

  const PangeaReactionsPicker(
    this.controller,
    this.overlayController, {
    super.key,
  });

  PangeaToken? get token => overlayController?.selectedToken;

  @override
  Widget build(BuildContext context) {
    if (controller.showEmojiPicker) return const SizedBox.shrink();
    final display = controller.editEvent == null &&
        controller.replyEvent == null &&
        controller.room.canSendDefaultMessages &&
        controller.selectedEvents.isNotEmpty;

    if (!display) {
      return const SizedBox.shrink();
    }
    final emojis = List<String>.from(AppEmojis.emojis);
    final allReactionEvents = controller.selectedEvents.first
        .aggregatedEvents(
          controller.timeline!,
          RelationshipTypes.reaction,
        )
        .where(
          (event) =>
              event.senderId == event.room.client.userID &&
              event.type == 'm.reaction',
        );

    for (final event in allReactionEvents) {
      try {
        emojis.remove(event.content.tryGetMap('m.relates_to')!['key']);
      } catch (_) {}
    }

    for (final event in allReactionEvents) {
      try {
        emojis.remove(
          event.content.tryGetMap('m.relates_to')!['key'],
        );
      } catch (_) {}
    }

    return Flexible(
      child: Row(
        children: [
          Flexible(
            child: SingleChildScrollView(
              scrollDirection: Axis.horizontal,
              child: Row(
                children: emojis
                    .map(
                      (emoji) => InkWell(
                        borderRadius: BorderRadius.circular(8),
                        onTap: () => controller.sendEmojiAction(emoji),
                        child: Container(
                          width: kIsWeb ? 56 : 48,
                          height: AppConfig.defaultFooterHeight,
                          alignment: Alignment.center,
                          child: Text(
                            emoji,
                            style: const TextStyle(fontSize: 24),
                          ),
                        ),
                      ),
                    )
                    .toList(),
              ),
            ),
          ),
        ],
      ),
    );
  }
}