import { PlotSeries } from '@axicharts/charts-canvas';
import { EChartCursorEvent, EChartItemHoverEvent } from '@axicharts/charts-echarts';

type BrushRange = {
    start: number;
    end: number;
};

/** Minimum follower brush span as percent of the full domain. */
declare const DEFAULT_BRUSH_MIN_RANGE_PERCENT = 3;
declare function isEmptyBrushRange(range: BrushRange | null | undefined): boolean;
/** Clamp and enforce a minimum span; returns null when the range is unusable. */
declare function normalizeBrushRange(range: BrushRange | null | undefined, minSpanPercent?: number): BrushRange | null;
declare function sliceCartesianByBrushRange(categories: string[], series: PlotSeries[], range: BrushRange | null): {
    categories: string[];
    series: PlotSeries[];
};
declare function mapSyncIndexForBrushRange(syncIndex: number | null, range: BrushRange | null, totalCount: number): number | null;

declare function useEChartsInteraction(): {
    onCursor: (event: EChartCursorEvent) => void;
    onItemHover: (event: EChartItemHoverEvent) => void;
    onSyncIndex: (index: number | null) => void;
    onBrushRange: (range: BrushRange | null) => void;
    syncIndex: number | null;
    syncSourceId: string | null;
    followerBrushRange: BrushRange | null;
    chartId: string | undefined;
};

export { type BrushRange as B, DEFAULT_BRUSH_MIN_RANGE_PERCENT as D, isEmptyBrushRange as i, mapSyncIndexForBrushRange as m, normalizeBrushRange as n, sliceCartesianByBrushRange as s, useEChartsInteraction as u };