import type { Bar } from '../../types';
export interface ZigZagSettings {
    devThreshold: number;
    depth: number;
    lineColor: string;
    extendLast: boolean;
    displayReversalPrice: boolean;
    displayCumulativeVolume: boolean;
    displayReversalPriceChange: boolean;
    differencePriceMode: 'Absolute' | 'Percent';
    allowZigZagOnOneBar: boolean;
}
export interface ZigZagPoint {
    time: number;
    barIndex: number;
    price: number;
}
export interface ZigZagPivot {
    isHigh: boolean;
    volume: number;
    start: ZigZagPoint;
    end: ZigZagPoint;
}
export interface ZigZagResult {
    pivots: ZigZagPivot[];
    extension: ZigZagPivot | null;
}
export declare const defaultSettings: ZigZagSettings;
export declare class ZigZag {
    settings: ZigZagSettings;
    pivots: ZigZagPivot[];
    sumVol: number;
    private highBuffer;
    private lowBuffer;
    private timeBuffer;
    private barCount;
    constructor(settings?: Partial<ZigZagSettings>);
    update(bar: Bar, barIndex: number): boolean;
    lastPivot(): ZigZagPivot | null;
    getExtension(currentBar: Bar, barIndex: number): ZigZagPivot | null;
    private tryFindPivot;
    private findPivotPoint;
    private calcDev;
    private newPivotPointFound;
}
export declare function calculateZigZag(bars: Bar[], settings?: Partial<ZigZagSettings>): ZigZagResult;
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