/**
 * Hierarchical Layout Engine
 * Uses ELK.js for advanced graph layout with proper edge routing
 */
import { type LayoutDirection, type LayoutResult, type NetworkGraph } from '../models/index.js';
export interface HierarchicalLayoutOptions {
    direction?: LayoutDirection;
    nodeWidth?: number;
    nodeHeight?: number;
    nodeSpacing?: number;
    rankSpacing?: number;
    subgraphPadding?: number;
    subgraphLabelHeight?: number;
}
export declare class HierarchicalLayout {
    private options;
    private elk;
    constructor(options?: HierarchicalLayoutOptions);
    /**
     * Calculate dynamic spacing based on graph complexity
     */
    private calculateDynamicSpacing;
    private getEffectiveOptions;
    layoutAsync(graph: NetworkGraph): Promise<LayoutResult>;
    /**
     * Build ELK graph - uses container nodes for HA pairs
     */
    private buildElkGraph;
    /**
     * Extract layout result from ELK output - uses ELK's edge routing directly
     */
    private extractLayoutResult;
    layout(graph: NetworkGraph): LayoutResult;
    private toElkDirection;
    private calculateNodeHeight;
    private calculatePortSpacing;
    private calculateNodeWidth;
    private calculateTotalBounds;
    private calculateFallbackLayout;
    /** Detect HA pairs from redundancy links */
    private detectHAPairs;
    /** Generate orthogonal path between two points */
    private generateOrthogonalPath;
}
export declare const hierarchicalLayout: HierarchicalLayout;
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