import type { CartesianScaleTypeRegistry, Color, ControllerDatasetOptions, CoreChartOptions, FontSpec, Scriptable, ScriptableAndArray, ScriptableContext } from 'chart.js';
export type AnyObject = Record<string, unknown>;
export interface SankeyDataPoint {
    from: string;
    to: string;
    flow: number;
}
export type SankeyScriptableContext = ScriptableContext<'sankey'> & {
    raw: SankeyDataPoint;
};
export type SankeyLabelPosition = 'auto' | 'bottom' | 'center' | 'left' | 'right' | 'top';
export type SankeyNodeLabelPosition = SankeyLabelPosition;
export type SankeyOrientation = 'horizontal' | 'vertical';
export type SankeyNodeLabelOption<T> = T | Record<string, T> | ((node: SankeyNode) => T | undefined);
export interface SankeyControllerDatasetNodeLabelsOptions {
    backgroundColor?: SankeyNodeLabelOption<Color>;
    borderRadius?: number;
    color?: SankeyNodeLabelOption<Color>;
    display?: SankeyNodeLabelOption<boolean>;
    font?: Partial<FontSpec>;
    padding?: number;
    position?: SankeyNodeLabelOption<SankeyLabelPosition>;
}
export interface SankeyControllerDatasetFlowLabelsOptions {
    backgroundColor?: Scriptable<Color, SankeyScriptableContext>;
    borderRadius?: Scriptable<number, SankeyScriptableContext>;
    color?: Scriptable<Color, SankeyScriptableContext>;
    display?: Scriptable<boolean, SankeyScriptableContext>;
    font?: Scriptable<Partial<FontSpec>, SankeyScriptableContext>;
    padding?: Scriptable<number, SankeyScriptableContext>;
    position?: Scriptable<SankeyLabelPosition, SankeyScriptableContext>;
}
export interface SankeyParsingOptions {
    from: string;
    to: string;
    flow: string;
}
export interface SankeyControllerDatasetOptions extends Omit<ControllerDatasetOptions, 'parsing'> {
    alpha?: number;
    backgroundColor?: never;
    borderColor?: Color;
    borderWidth?: number;
    color?: Color;
    colorFrom?: ScriptableAndArray<Color, SankeyScriptableContext>;
    colorMode?: 'gradient' | 'from' | 'to';
    colorTo?: ScriptableAndArray<Color, SankeyScriptableContext>;
    column?: Record<string, number>;
    font?: Partial<FontSpec>;
    flowLabels?: SankeyControllerDatasetFlowLabelsOptions;
    hoverColorFrom?: ScriptableAndArray<Color, SankeyScriptableContext>;
    hoverColorTo?: ScriptableAndArray<Color, SankeyScriptableContext>;
    hoverFlowColor?: ScriptableAndArray<Color, SankeyScriptableContext>;
    labels?: Record<string, string>;
    flowColor?: ScriptableAndArray<Color, SankeyScriptableContext>;
    modeX?: 'edge' | 'even';
    nodeLabels?: SankeyControllerDatasetNodeLabelsOptions;
    nodePadding?: number;
    nodeWidth?: number;
    orientation?: SankeyOrientation;
    padding?: number;
    parsing: SankeyParsingOptions;
    priority?: Record<string, number>;
    size?: 'min' | 'max';
}
export interface FromToElement {
    addY: number;
    flow: number;
    key: string;
    node: SankeyNode;
    index: number;
}
export interface SankeyNode {
    key: string;
    in: number;
    out: number;
    size: number;
    from: FromToElement[];
    to: FromToElement[];
    column?: boolean;
    priority?: number;
    y?: number;
    x?: number;
    color?: Color;
    _visited?: number;
}
export interface SankeyParsedData {
    x: number;
    y: number;
    _custom: {
        from: SankeyNode;
        to: SankeyNode;
        x: number;
        y: number;
        height: number;
        flow: number;
    };
}
declare module 'chart.js' {
    interface ChartTypeRegistry {
        sankey: {
            datasetOptions: SankeyControllerDatasetOptions;
            defaultDataPoint: SankeyDataPoint;
            parsedDataType: SankeyParsedData;
            metaExtensions: AnyObject;
            chartOptions: CoreChartOptions<'sankey'>;
            scales: keyof CartesianScaleTypeRegistry;
        };
    }
}
export interface FlowProps {
    flow: number;
    x: number;
    y: number;
    x2: number;
    y2: number;
    height: number;
    width: number;
}
export interface FlowOptions {
    alpha: number;
    colorMode: 'gradient' | 'from' | 'to';
    colorFrom: Color;
    colorTo: Color;
    hoverColorFrom: Color;
    hoverColorTo: Color;
    flowColor: Color | null;
    orientation: SankeyOrientation;
    flowLabels: {
        backgroundColor?: Color;
        borderRadius: number;
        color: Color;
        display: boolean;
        font?: Partial<FontSpec>;
        padding: number;
        position: SankeyLabelPosition;
    };
}
export interface FlowConfig {
    flow?: number;
    x: number;
    y: number;
    x2: number;
    y2: number;
    height: number;
    width?: number;
    progress?: number;
    from?: SankeyNode;
    to?: SankeyNode;
    options: FlowOptions;
}