DatePicker (index.tsx)

UI calendar/date picker component. Renders from input, combines class names, clones element.

import { clsx } from "clsx";
import React, { Component, cloneElement } from "react";

import Calendar, { OUTSIDE_CLICK_IGNORE_CLASS } from "./calendar";
import CalendarIcon from "./calendar_icon";
import {
  newDate,
  isDate,
  isBefore,
  isAfter,
  isEqual,
  setTime,
  isValid,
  getSeconds,
  getMinutes,
  getHours,
  addDays,
  addMinutes,
  addMonths,
  addWeeks,
  subDays,
  subMonths,
  subWeeks,
  addYears,
  subYears,
  isDayDisabled,
  isDayInRange,
  getEffectiveMinDate,
  getEffectiveMaxDate,
  parseDate,
  parseDateForNavigation,
  formatDate,
  safeDateFormat,
  safeDateRangeFormat,
  getHighLightDaysMap,
  getYear,
  getMonth,
  getStartOfWeek,
  getEndOfWeek,
  registerLocale,
  setDefaultLocale,
  getDefaultLocale,
  DEFAULT_YEAR_ITEM_NUMBER,
  isSameDay,
  isMonthDisabl

... (truncated -- full source via MCP)