/**
 * Copyright 2024, SumUp Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Temporal } from 'temporal-polyfill';
import type { Locale } from './i18n.js';
export type FirstDayOfWeek = 1 | 7;
export type DaysInWeek = number;
export type PlainDateRange = {
    start: undefined;
    end: undefined;
} | {
    start: Temporal.PlainDate;
    end: undefined;
} | {
    start: Temporal.PlainDate;
    end: Temporal.PlainDate;
};
export declare const MIN_YEAR = 1;
export declare const MAX_YEAR = 9999;
export declare const MIN_MONTH = 1;
export declare const MAX_MONTH = 12;
export declare const MIN_DAY = 1;
export declare function getTodaysDate(): Temporal.PlainDate;
export declare function isPlainDate(date: unknown): date is Temporal.PlainDate;
export declare function toPlainDate(date?: string): Temporal.PlainDate | undefined;
export declare function clampDate(date: Temporal.PlainDate, minDate?: Temporal.PlainDate | null, maxDate?: Temporal.PlainDate | null): Temporal.PlainDate;
export declare function updatePlainDateRange(previousRange: PlainDateRange, date: Temporal.PlainDate): PlainDateRange;
export declare function getFirstDateOfWeek(date: Temporal.PlainDate, firstDayOfWeek: FirstDayOfWeek): Temporal.PlainDate;
export declare function getLastDateOfWeek(date: Temporal.PlainDate, firstDayOfWeek: FirstDayOfWeek): Temporal.PlainDate;
export declare function getMonthName(month: number, locale?: Locale): string;