import type { NodePort } from '../types/index.js';
/**
 * Sort ports by an ordered array of port IDs.
 * Ports not listed appear at the end in their original order.
 */
export declare function applyPortOrder(ports: NodePort[], orderedIds: string[] | undefined): NodePort[];
/**
 * Compute the CSS `top` offset (px) for a port handle.
 * - 1 port: centered at 40px
 * - N ports: 20px start, 40px gap between each
 */
export declare function getPortTop(index: number, count: number): number;
/**
 * Determine whether a port should be rendered.
 *
 * Priority:
 * 1. Manual hide (`hiddenPorts`) — always wins, regardless of connections
 * 2. `hideUnconnectedHandles` — hide if not present in the connected handles set
 * 3. Default — visible
 */
export declare function isPortVisible(port: NodePort, direction: 'input' | 'output', hiddenPorts: {
    inputs?: string[];
    outputs?: string[];
}, hideUnconnectedHandles: boolean, connectedHandles: Set<string>, nodeId: string | undefined): boolean;