import { ComponentConfigInterface } from '../../core/component/config';
import { ColorAccessor, GenericAccessor, NumericAccessor } from '../../types/accessor';
import { FillPatternType } from '../../styles/patterns';

export interface DonutConfigInterface<Datum> extends ComponentConfigInterface {
    /** Accessor function for getting the unique data record id. Used for more persistent data updates. Default: `(d, i) => d.id ?? i` */
    id?: ((d: Datum, i: number, ...any: unknown[]) => string | number);
    /** Value accessor function. Default: `undefined` */
    value: NumericAccessor<Datum>;
    /** Diagram angle range. Default: `[0, 2 * Math.PI]` */
    angleRange?: [number, number];
    /** Pad angle. Default: `0` */
    padAngle?: number;
    /** Minimum angular sweep, in radians, for any segment with a positive value.
     * Segments whose proportional sweep would be smaller are inflated to this angle,
     * with the difference taken proportionally from the remaining segments.
     * Guarantees a segment can survive the `padAngle` inset instead of collapsing
     * to a zero-area path; a sensible setting is `minSegmentAngle >= 2 * padAngle`.
     * Default: `undefined` */
    minSegmentAngle?: number;
    /** Custom sort function. Default: `undefined` */
    sortFunction?: (a: Datum, b: Datum) => number;
    /** Corner Radius. Default: `0` */
    cornerRadius?: number;
    /** Color accessor function. Default: `undefined` */
    color?: ColorAccessor<Datum>;
    /** Fill pattern accessor. Resolves to a `FillPatternType`.
     * When unset and `theme-patterns` is active, a default pattern is applied by segment index. Default: `undefined` */
    pattern?: GenericAccessor<FillPatternType, Datum>;
    /** Explicitly set the donut outer radius. Default: `undefined` */
    radius?: number;
    /** Arc width in pixels. Set to `0` if you want to have a pie chart. Default: `20` */
    arcWidth?: number;
    /** Central label accessor function or text. Default: `undefined` */
    centralLabel?: string;
    /** Central sub-label accessor function or text. Default: `undefined` */
    centralSubLabel?: string;
    /** Enables wrapping for the sub-label. Default: `true` */
    centralSubLabelWrap?: boolean;
    /** When true, the component will display empty segments (the ones that have `0` values) as tiny slices.
     * Default: `false`
    */
    showEmptySegments?: boolean;
    /** Angular size for empty segments in radians. Default: `0.5 * Math.PI / 180` */
    emptySegmentAngle?: number;
    /** Show donut background. The color is configurable via
     * the `--vis-donut-background-color` and `--vis-dark-donut-background-color` CSS variables.
     * Default: `true`
    */
    showBackground?: boolean;
    /** Background angle range. When undefined, the value will be taken from `angleRange`. Default: `undefined` */
    backgroundAngleRange?: [number, number];
    /** Central label and sub-label horizontal offset in pixels. Default: `undefined` */
    centralLabelOffsetX?: number;
    /** Central label and sub-label vertical offset in pixels. Default: `undefined` */
    centralLabelOffsetY?: number;
}
export declare const DonutDefaultConfig: DonutConfigInterface<unknown>;