import { type FC, type HTMLAttributes, type ReactNode, type Ref } from 'react';
import { type PieChartDatum } from './PieChartContext';
export interface PieChartCenterProps extends HTMLAttributes<HTMLDivElement> {
    ref?: Ref<HTMLDivElement>;
}
export declare const PieChartCenter: FC<PieChartCenterProps>;
export interface PieChartCenterValueProps extends HTMLAttributes<HTMLSpanElement> {
    ref?: Ref<HTMLSpanElement>;
    /**
     * When `true` (default), hovering a slice or legend row replaces `children` with the
     * hovered datum's value (formatted via `formatHoveredValue`). Set to `false` to keep
     * `children` visible regardless of hover state — useful when the centre value should
     * always reflect the unfiltered total.
     */
    hoverSync?: boolean;
    /**
     * Formatter applied to the hovered datum when `hoverSync` is enabled. Defaults to
     * `datum.value.toLocaleString()`. Pass a custom formatter to keep the hover format
     * aligned with whatever formatter produced `children` (e.g. compact notation, units).
     */
    formatHoveredValue?: (datum: PieChartDatum) => ReactNode;
}
export declare const PieChartCenterValue: FC<PieChartCenterValueProps>;
/**
 * CLDR plural categories supported by `Intl.PluralRules`. `other` is required as the
 * fallback for any category the rules object does not define.
 */
export interface PieChartCenterLabelPluralRules {
    zero?: ReactNode;
    one?: ReactNode;
    two?: ReactNode;
    few?: ReactNode;
    many?: ReactNode;
    other: ReactNode;
    /** BCP-47 locale tag forwarded to `Intl.PluralRules`. Defaults to `'en'`. */
    locale?: string;
}
export interface PieChartCenterLabelProps extends HTMLAttributes<HTMLSpanElement> {
    ref?: Ref<HTMLSpanElement>;
    /**
     * When `true` (default), the label tracks the hovered slice/legend row — so a
     * `pluralize` rules object picks the form for the hovered datum's value rather than
     * the chart total. Has no effect when `pluralize` is omitted.
     */
    hoverSync?: boolean;
    /**
     * Optional pluralization rules. When provided, the label content is selected from
     * the rules using `Intl.PluralRules` for the currently visible count (the hovered
     * datum's value when `hoverSync` is on, otherwise the chart total). When omitted,
     * `children` renders unchanged.
     */
    pluralize?: PieChartCenterLabelPluralRules;
}
export declare const PieChartCenterLabel: FC<PieChartCenterLabelProps>;