import type { BaseChartProps, ChartAxis, ChartGrid, ChartInteractionCallbacks, ChartLegend } from '../../types/base';
export interface ComboChartXYPoint {
    /** X-axis value for the data point */
    x: number;
    /** Y-axis value for the data point */
    y: number;
    /** Optional color override for the point */
    color?: string;
    /** Optional metadata forwarded through interaction callbacks and tooltips */
    meta?: Record<string, any>;
}
export type ComboChartLayer = {
    /** Layer type */
    type: 'bar';
    /** Unique identifier for the layer */
    id?: string | number;
    /** Display name for the layer */
    name?: string;
    /** Axis assigned to render this layer */
    targetAxis?: 'left' | 'right';
    /** Bar series data points */
    data: ComboChartXYPoint[];
    /** Explicit bar width override */
    barWidth?: number;
    /** Base color applied to bars */
    color?: string;
    /** Opacity applied to the bars */
    opacity?: number;
} | {
    /** Layer type */
    type: 'line';
    /** Unique identifier for the layer */
    id?: string | number;
    /** Display name for the layer */
    name?: string;
    /** Axis assigned to render this layer */
    targetAxis?: 'left' | 'right';
    /** Line series data points */
    data: ComboChartXYPoint[];
    /** Smooth the line path using curve interpolation */
    smooth?: boolean;
    /** Line stroke thickness */
    thickness?: number;
    /** Base color applied to the line */
    color?: string;
    /** Show point markers along the line */
    showPoints?: boolean;
    /** Size of the point markers */
    pointSize?: number;
} | {
    /** Layer type */
    type: 'area';
    /** Unique identifier for the layer */
    id?: string | number;
    /** Display name for the layer */
    name?: string;
    /** Axis assigned to render this layer */
    targetAxis?: 'left' | 'right';
    /** Area series data points */
    data: ComboChartXYPoint[];
    /** Smooth the area curve using interpolation */
    smooth?: boolean;
    /** Fill color applied to the area */
    color?: string;
    /** Fill opacity applied to the area */
    fillOpacity?: number;
} | {
    /** Layer type */
    type: 'histogram';
    /** Unique identifier for the layer */
    id?: string | number;
    /** Display name for the layer */
    name?: string;
    /** Axis assigned to render this layer */
    targetAxis?: 'left' | 'right';
    /** Raw values used to build the histogram */
    values: number[];
    /** Explicit bin count override */
    bins?: number;
    /** Automatic binning method */
    binMethod?: 'sturges' | 'sqrt' | 'fd';
    /** Color applied to histogram bars */
    color?: string;
    /** Opacity applied to histogram bars */
    opacity?: number;
} | {
    /** Layer type */
    type: 'density';
    /** Unique identifier for the layer */
    id?: string | number;
    /** Display name for the layer */
    name?: string;
    /** Axis assigned to render this layer */
    targetAxis?: 'left' | 'right';
    /** Raw values used to compute the density curve */
    values: number[];
    /** Kernel bandwidth override for density estimation */
    bandwidth?: number;
    /** Color applied to the density curve */
    color?: string;
    /** Stroke thickness for the density curve */
    thickness?: number;
};
export interface ComboChartProps extends BaseChartProps, ChartInteractionCallbacks<ComboChartXYPoint> {
    /** Ordered set of layers to render in the combo chart */
    layers: ComboChartLayer[];
    /** Enable crosshair indicator across layers */
    enableCrosshair?: boolean;
    /** Enable multi-series tooltip aggregation */
    multiTooltip?: boolean;
    /** Follow pointer live with tooltip */
    liveTooltip?: boolean;
    /** Explicit override for the shared x-domain */
    xDomain?: [number, number];
    /** Explicit override for the primary y-domain */
    yDomain?: [number, number];
    /** Explicit override for the secondary y-domain */
    yDomainRight?: [number, number];
    /** Axis configuration for the shared x-axis */
    xAxis?: ChartAxis;
    /** Axis configuration for the primary y-axis */
    yAxis?: ChartAxis;
    /** Axis configuration for the secondary y-axis */
    yAxisRight?: ChartAxis;
    /** Grid line configuration */
    grid?: ChartGrid;
    /** Legend display options */
    legend?: ChartLegend;
}