Function shouldHideNode

ui/src/components/graph/useGraphFilters.ts:27–63

(
  node: GraphNode,
  filterState: FilterState,
  communityAssignments: Record<string, number>,
  availableSubTypes: Map<string, { subType: string; count: number }[]>,
  getSubType: GetSubTypeFn,
)

 * Exported so it can be reused by other components.
 */
export function shouldHideNode(
  node: GraphNode,
  filterState: FilterState,
  communityAssignments: Record<string, number>,
  availableSubTypes: Map<string, { subType: string; count: number }[]>,
  getSubType: GetSubTypeFn,
): boolean {
  // Community filter
  const communityId = communityAssignments[node.id];
  if (
    communityId !== undefined &&
    filterState.hiddenCommunities.has(communityId)
  ) {
    return true;
  }

  // Sub-type filter: when the node type has sub-types, sub-type visibility
  // takes precedence over the top-level type filter (matching filteredGraphData).
  const subTypes = availableSubTypes.get(node.type);
  if (subTypes && subTypes.length > 0) {
    const subType = getSubType(node);
    if (subType) {
      return filterState.hiddenSubTypes.has(`${node.type}:${subType}`);
    }
    // Node has no sub-type — hide only if ALL sub-types are hidden
    return subTypes.every((s) =>
      filterState.hiddenSubTypes.has(`${node.type}:${s.subType}`),
    );
  }

  // Type filter (only for types without sub-types)
  if (filterState.hiddenNodeTypes.has(node.type)) {
    return true;
  }

  return false;
}

// ─── Hook ───────────────────────────────────────────────────────────────