spaceRelationsOverviewProvider top-level property

Implementation

final spaceRelationsOverviewProvider =
    FutureProvider.family<SpaceRelationsOverview, String>((ref, spaceId) async {
  final relatedSpaces = await ref.watch(spaceRelationsProvider(spaceId).future);
  if (relatedSpaces == null) {
    throw SpaceNotFound;
  }
  bool hasMore = false;
  final List<String> knownSubspaces = [];
  final List<String> knownChats = [];
  final List<String> suggested = [];
  for (final related in relatedSpaces.children()) {
    String targetType = related.targetType();
    final roomId = related.roomId().toString();
    if (related.suggested()) {
      suggested.add(roomId);
    }
    final room = ref.watch(maybeRoomProvider(roomId)).valueOrNull;
    if (room == null || !room.isJoined()) {
      // we don’t know this room or are not in it
      hasMore = true;
      continue;
    }

    if (targetType == 'ChatRoom') {
      // we know this as a chat room
      knownChats.add(roomId);
    } else {
      // this must be some space.
      knownSubspaces.add(roomId);
    }
  }

  Space? mainParent;
  final mainSpace = relatedSpaces.mainParent();
  if (mainSpace != null) {
    if (mainSpace.targetType() != 'ChatRoom') {
      final roomId = mainSpace.roomId().toString();
      try {
        final space = await ref.watch(spaceProvider(roomId).future);
        if (space.isJoined()) mainParent = space;
      } catch (e, s) {
        _log.severe('Loading main Parent of $spaceId failed', e, s);
      }
    }
  }

  List<Space> parents = [];
  for (final related in relatedSpaces.otherParents()) {
    if (related.targetType() != 'ChatRoom') {
      final roomId = related.roomId().toString();
      try {
        final space = await ref.watch(spaceProvider(roomId).future);
        if (space.isJoined()) parents.add(space);
      } catch (e, s) {
        _log.severe('Loading other Parents of $spaceId failed', e, s);
      }
    }
  }
  return SpaceRelationsOverview(
    rel: relatedSpaces,
    parents: parents,
    knownChats: knownChats,
    knownSubspaces: knownSubspaces,
    otherRelations: [],
    mainParent: mainParent,
    hasMore: hasMore,
    suggestedIds: suggested,
  );
});