import { type DayOfWeek, type MapFunction, type Maybe } from '@dereekb/util';
import { type DateCellIndex, type DateCellTiming } from './date.cell';
import { type YearWeekCode, type YearWeekCodeGroupFactory } from './date.week';
/**
 * Converts the input index into the DayOfWeek that it represents.
 */
export type DateCellDayOfWeekFactory = MapFunction<DateCellIndex, DayOfWeek>;
/**
 * Creates a factory that maps a {@link DateCellIndex} to its corresponding {@link DayOfWeek}.
 *
 * @param inputDayForIndexZero - Calendar day that should be anchored at index 0.
 * @returns Factory that resolves any cell index to its day-of-week.
 *
 * @example
 * ```ts
 * import { Day } from '@dereekb/util';
 * const dayFactory = dateCellDayOfWeekFactory(Day.MONDAY);
 * dayFactory(0); // Day.MONDAY
 * dayFactory(1); // Day.TUESDAY
 * dayFactory(6); // Day.SUNDAY
 * ```
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function dateCellDayOfWeekFactory(inputDayForIndexZero: DayOfWeek | Date): DateCellDayOfWeekFactory;
/**
 * Used to return the proper YearWeekCode for the input DateCellIndex relative to the configured timing, or a Date.
 */
export type DateCellIndexYearWeekCodeFactory = (indexOrDate: DateCellIndex | Date) => YearWeekCode;
export interface DateCellIndexYearWeekCodeConfig {
    readonly timing: DateCellTiming;
}
/**
 * Creates a factory that computes the {@link YearWeekCode} for a given {@link DateCellIndex} or Date, relative to the configured timing.
 *
 * @param config - Timing configuration to compute dates from indexes.
 * @returns Factory that resolves a cell index or date to its YearWeekCode.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function dateCellIndexYearWeekCodeFactory(config: DateCellIndexYearWeekCodeConfig): DateCellIndexYearWeekCodeFactory;
/**
 * MapFunction that reads the relevant date to use for the YearWeekCode calculation from the input item.
 */
export type DateCellIndexYearWeekCodeReader<B> = MapFunction<B, Maybe<DateCellIndex | Date>>;
export interface DateCellIndexYearWeekCodeGroupFactoryConfig<B> {
    readonly dateCellIndexReader: DateCellIndexYearWeekCodeReader<B>;
    readonly dateCellIndexYearWeekCodeFactory: DateCellIndexYearWeekCodeFactory | DateCellIndexYearWeekCodeConfig;
}
/**
 * Creates a factory that groups items by their {@link YearWeekCode} based on a DateCellIndex reader and timing.
 *
 * @param config - Reader and factory configuration.
 * @returns Grouper that buckets items by their YearWeekCode.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function dateCellIndexYearWeekCodeGroupFactory<B>(config: DateCellIndexYearWeekCodeGroupFactoryConfig<B>): YearWeekCodeGroupFactory<B>;