import { c as Value, r as SummaryStrings } from "./summary-D8UEQXYr.js";
import { n as Format } from "./format-Dq02z5ZL.js";
import { CSSProperties, ReactNode } from "react";
//#region src/core/strings-cohort-triangle.d.ts
type CohortTriangleStrings = Pick<SummaryStrings, "noData" | "cohortTriangle" | "cohortTriangleShort" | "cohortTriangleAt" | "cohortTriangleEmpty">;
//#endregion
//#region src/charts/cohort-triangle/geometry.d.ts
interface CohortRow {
  label: string;
  /** Retention at age i (`values[i]`); `null`/non-finite = a gap slot. */
  values: readonly Value[];
}
interface CohortCell {
  row: number;
  col: number;
  x: number;
  y: number;
  /** Normalized retention fraction 0–1, or `null` for a measured-but-missing slot. */
  value: number | null;
  /** Discrete level 0..LEVELS-1; -1 for a gap slot. */
  level: number;
  gap: boolean;
}
interface CohortLabel {
  row: number;
  label: string;
  x: number;
  y: number;
}
interface CohortTriangleGeometry {
  cells: CohortCell[];
  labels: CohortLabel[];
  rows: number;
  cols: number;
  gutter: number;
  width: number;
  height: number;
  step: number;
  /** The resolved `cell` / `gap` the cells were actually laid out against.
   *  Both entries must paint from THESE, never from the raw props — see
   *  `resolve` for what a raw value can be. */
  cell: number;
  gap: number;
  fontSize: number;
  showLabels: boolean;
  /** Ring around the highlighted cohort row, if `highlight` matches a label. */
  ring: {
    x: number;
    y: number;
    width: number;
    height: number;
  } | null;
  /** Deepest age observed by every cohort (contiguous from 0); -1 if none. */
  commonAge: number;
  /** Worst-retaining cohort at `commonAge` (min value; ties → earliest input). */
  worst: {
    label: string;
    age: number;
    value: number;
  } | null;
  /** Newest cohort's (last row's) first finite reading. */
  newestFirst: {
    label: string;
    value: number;
  } | null;
}
//#endregion
//#region src/charts/cohort-triangle/index.d.ts
/** Opacity ramp per discrete retention level — the shared value-cell ramp
 *  (0.25 → 1), so a real bottom-of-scale reading never vanishes into the
 *  empty-track look reserved for gaps. */
declare const levelOpacity: (level: number) => number;
/** Cohort count, worst vintage at equal maturity, newest first reading. */
declare function cohortTriangleSummary(geo: CohortTriangleGeometry, strings: CohortTriangleStrings, fmt: (n: number) => string, unit: string): string;
interface CohortTriangleProps {
  /** One row per cohort, `values[i]` = retention at age i (0–1 or 0–100). */
  data: readonly CohortRow[];
  /** Cell edge length in viewBox units. */
  cell?: number | undefined;
  gap?: number | undefined;
  /** Place cohort labels in a left gutter (default true; seat-gated by cell). */
  labels?: boolean | undefined;
  /** Cohort label to ring — the equal-maturity comparison focus. */
  highlight?: string | undefined;
  /** Age-column noun for the summary (default "period"). */
  unit?: string | undefined;
  color?: string | undefined;
  format?: Format | undefined;
  locale?: string | string[] | undefined;
  strings?: CohortTriangleStrings | undefined;
  /** Minimum in-chart label size, in viewBox units. Geometry sizes labels from
   *  the mark and floors them at 7; this raises that floor and moves the
   *  reserved gutter with it. A label the box cannot seat at the raised floor
   *  drops rather than shrinking back under it. */
  labelSize?: number | undefined;
  title?: string | undefined;
  summary?: string | false | undefined;
  id?: string | undefined;
  className?: string | undefined;
  style?: CSSProperties | undefined;
  children?: ReactNode | undefined;
}
declare function CohortTriangle(props: CohortTriangleProps): ReactNode;
//#endregion
export { CohortRow as a, levelOpacity as i, CohortTriangleProps as n, CohortTriangleStrings as o, cohortTriangleSummary as r, CohortTriangle as t };