import { ChartAxisConfig } from '../../types.js';
/**
 * Discriminated error code returned by {@link resolveChartAxisFields} when the
 * chart configuration is invalid. Each chart maps these codes to its own i18n
 * hint key (e.g. pie charts surface a pie-specific message for `axisInvalid`).
 */
export type ChartAxisErrorCode = 'axisInvalid' | 'axisFields';
/**
 * Result of resolving X/Y/series fields from a {@link ChartAxisConfig}.
 * When `errorCode` is non-null the field values are not usable and the chart
 * should render a configuration-error state instead.
 */
export interface ResolvedChartAxisFields {
    /** Resolved X-axis field (category), or undefined when the config is invalid */
    xAxisField?: string;
    /** Resolved Y-axis (value/measure) fields */
    yAxisFields: string[];
    /** Optional series/grouping fields (only present in the new config format) */
    seriesFields: string[];
    /** Non-null when the configuration cannot produce a renderable axis setup */
    errorCode: ChartAxisErrorCode | null;
}
/**
 * Pure resolver for the X/Y/series field extraction that Cartesian charts
 * (bar, line, area, pie) all duplicated inline.
 *
 * Supports both the new format (`xAxis` / `yAxis` / `series` arrays) and the
 * legacy format (`x` / `y`). Returns a discriminated `errorCode` rather than
 * JSX so each chart can map it to its own i18n hint key and render its own
 * guard component.
 */
export declare function resolveChartAxisFields(chartConfig?: ChartAxisConfig): ResolvedChartAxisFields;