import { CSSProperties } from "react";
//#region src/shared/interactive.d.ts
/** Shared `onActive`/`onSelect` payload — `index` is the navigable unit (per chart). */
interface MicroDatum {
  index: number;
  value: number | null;
  label?: string | undefined;
  /** Chip/display string — pair with `readout={false}`; `value` stays raw. */
  formatted?: string | undefined;
}
/**
 * Names for the navigable units, indexed the same way `MicroDatum.index` is
 * (for a series chart, the data index). Mixed into every MULTI-UNIT interactive
 * entry whose `data` is a bare numeric series — those charts can otherwise only
 * say "Point 3 of 12", never "Aug 2026". Charts whose data already carries a
 * `label` field name their units from that instead and don't take this prop.
 *
 * Sparse arrays are fine: a hole (or an empty string) falls back to the
 * positional wording for that unit alone. Interactive-only by design — a static
 * chart has no readout to name, and the generated summary stays value-based.
 *
 * Charts read this in their own `datum` callback (for `MicroDatum.label`) and
 * hand `labels?.[i]` to `announceNamed` / `chipNamed`, rather than wiring it into
 * `useActivePicker`: the kernel is bundled into all ~90 multi-unit interactive
 * subpaths, so naming it there charged 23 B to the 61 charts that identify their
 * units some other way.
 */
interface LabeledSeriesProps {
  labels?: readonly (string | undefined)[] | undefined;
}
/** Public interaction props shared by every `…/interactive` entry. */
interface PickerProps {
  /** Hover/focus unit; `null` when cleared. */
  onActive?: ((datum: MicroDatum | null) => void) | undefined;
  /** Click/tap/Enter/Space; `null` when deselected. */
  onSelect?: ((datum: MicroDatum | null) => void) | undefined;
  selectedIndex?: number | null | undefined;
  defaultSelectedIndex?: number | null | undefined;
  /** In-chart chip (default true). `false` hides chip only — crosshair/callbacks stay. */
  readout?: boolean | undefined;
}
//#endregion
export { MicroDatum as n, PickerProps as r, LabeledSeriesProps as t };