import type { PlainObject } from 'ag-charts-core';
import type { SeriesGrouping } from '../../module/seriesGrouping';
import { IrregularBandScale } from '../../scale/irregularBandScale';
type SeriesGroupingResult = {
    visibleGroupCount: number;
    visibleSameStackCount: number;
    index: number;
};
type SeriesIdLike = {
    internalId: string;
    type: string;
};
type SeriesLike = SeriesIdLike & {
    seriesGrouping?: SeriesGrouping;
    width?: number;
    visible: boolean;
};
export declare class SeriesStateManager {
    private readonly groups;
    private readonly groupScales;
    /** Canonicalised category keys at which each series has a rendered (non-null, valid) bar, keyed by `internalId`. */
    private readonly datumValidKeys;
    registerSeries({ internalId, seriesGrouping, visible, width, type }: SeriesLike): void;
    updateSeries({ internalId, seriesGrouping, visible, width, type }: SeriesLike): void;
    deregisterSeries({ internalId, type }: SeriesIdLike): void;
    /**
     * Record the category keys at which a series has a rendered bar, so that `getDatumOffset` can close the gaps left
     * by categories a series does not draw — whether the bar is null/missing in a shared data array or the category is
     * absent from the series' own per-series `data` array. Keys are canonicalised (dates to epoch numbers) to match by
     * value across series. Pass `undefined` to clear (e.g. when `skipNullBars` is off).
     */
    setSeriesDatumValidKeys(internalId: string, keys: Iterable<unknown> | undefined): void;
    getVisiblePeerGroupIndex({ type, seriesGrouping, visible }: SeriesLike): SeriesGroupingResult;
    /** Whether a visible series sits at a lower / higher `stackIndex` than this one in the same stack. */
    getVisibleStackNeighbours({ type, seriesGrouping }: SeriesLike): {
        before: boolean;
        after: boolean;
    };
    updateGroupScale({ type }: SeriesLike, bandwidth: number, axis: PlainObject): void;
    getGroupScale({ type }: SeriesLike): IrregularBandScale | undefined;
    getGroupBandWidth(series: SeriesLike): number;
    getGroupOffset(series: SeriesLike): number;
    getStackOffset(series: SeriesLike, barWidth: number): number;
    getDatumOffset(series: SeriesLike, datumKey: unknown): number;
}
export {};