import { SankeyData, SankeyStyle, PlotArea, SankeyLink } from '../types';

export interface SankeyNodeLayout {
    x: number;
    y: number;
    width: number;
    height: number;
    color: string;
    value: number;
}
export interface SankeyLinkLayout {
    source: SankeyNodeLayout;
    target: SankeyNodeLayout;
    sourceOffset: number;
    targetOffset: number;
    sourceTotal: number;
    targetTotal: number;
    value: number;
    link: SankeyLink;
}
export interface SankeyLayoutResult {
    workingArea: PlotArea;
    nodeRegistry: Map<string | number, SankeyNodeLayout>;
    links: SankeyLinkLayout[];
    nodeInValue: Map<string | number, number>;
    nodeOutValue: Map<string | number, number>;
    style: Required<Pick<SankeyStyle, "nodeWidth" | "nodePadding" | "palette" | "linkOpacity" | "showLabels">>;
}
export declare function computeSankeyLayout(data: SankeyData, style: SankeyStyle, plotArea: PlotArea): SankeyLayoutResult | null;