export interface IMonthIndex {
    month: number;
}
export interface IWeekIndex extends IMonthIndex {
    week: number;
}
export interface IDayIndex extends IWeekIndex {
    day: number;
}
/**
 * Helps with converting sequential index to 0- or 1-based month, week, day index.
 *
 * Allows to use any number of days per week, not just 7. Also one can set any number of weeks per month (but it will be used globally).
 *
 * To update the value, either set `raw` property or use `set` method.
 *
 * Usage case: some ordered sequence of items, each has its own index, and you want to distribute them by months, weeks and days, knowing the number of items assigned per week.
 */
export declare class CalendarIndex implements IDayIndex {
    readonly perWeek: number;
    readonly base: 1 | 0;
    static WEEKS_PER_MONTH: number;
    /** sequential index */
    raw: number;
    /**
     * @param perWeek how many indexes allocated per week
     * @param [base=0] 1 or 0 - determines base for all indexes (0 by default)
     */
    constructor(perWeek?: number, base?: 1 | 0);
    get perMonth(): number;
    /** 1/0-based month index based on `perWeek` property */
    get month(): number;
    get fullWeek(): number;
    /** 1/0-based week index based on `perWeek` property */
    get week(): number;
    get day(): number;
    set(month: number, week?: number, day?: number): this;
    toIndex(): IDayIndex;
    clone(): CalendarIndex;
}
/** returns based (1/0) remainder of `value / div`
 *
 * Ex.: get day of week
*/
export declare function basedRemainder(this: void, base: 1 | 0, value: number, div: number): number;
/** returns based (1/0) floor'ed of `value / div` */
export declare function basedFloor(this: void, base: 1 | 0, value: number, div: number): number;