src/labels/labelGridcell.ts

import { DateLib, type DateLibOptions } from "../classes/DateLib.js";
import type { Modifiers } from "../types/index.js";

/**
 * Generates the label for a day grid cell when the calendar is not interactive.
 *
 * @param date - The date to format.
 * @param modifiers - Optional modifiers providing context for the day.
 * @param options - Optional configuration for the date formatting library.
 * @param dateLib - An optional instance of the date formatting library.
 * @returns The label for the day grid cell.
 * @group Labels
 * @see https://daypicker.dev/docs/translation#aria-labels
 */
export function labelGridcell(
  date: Date,
  modifiers?: Modifiers,
  options?: DateLibOptions,
  dateLib?: DateLib,
) {
  let label = (dateLib ?? new DateLib(options)).format(date, "PPPP");
  if (modifiers?.today) {
    label = `Today, ${label}`;
  }
  return label;
}