applyReactionEvent method

bool applyReactionEvent(ReactionEvent event)

Applies ReactionEvent to message.

Implementation

bool applyReactionEvent(ReactionEvent event) {
  sbLog.i(StackTrace.current, 'event.key: ${event.key}');

  try {
    if (event.messageId != messageId) {
      return false;
    }

    final keys = reactions?.map((e) => e.key).toList();
    final existIndex = keys?.indexWhere((e) => e == event.key) ?? -1;
    if (existIndex != -1) {
      final reaction = reactions?[existIndex];
      if (reaction != null && reaction.merge(event)) {
        if (event.operation == ReactionEventAction.delete &&
            reaction.userIds.isEmpty) {
          reactions?.removeWhere((e) => e.key == event.key);
        }
        return true;
      } else {
        return false;
      }
    } else if (event.operation == ReactionEventAction.add) {
      final reaction = Reaction(
        key: event.key,
        userIds: [event.userId],
        updatedAt: event.updatedAt,
      );
      reactions?.add(reaction);
      return true;
    } else {
      return false;
    }
  } catch (e) {
    sbLog.e(StackTrace.current, 'e: $e');
  }
  return false;
}