import { type EditorRecurrence, type RecurrenceFrequency, type RecurrenceWeekday } from './calendar.model';
export type CustomRecurrenceUnit = 'day' | 'week' | 'month' | 'year';
/** How a monthly Custom rule picks its day, read from the first date. */
export type CustomMonthlyBy = 'monthDay' | 'nthWeekday' | 'lastWeekday';
export interface CustomRecurrenceValue {
    /** Every N units; `null` while the field is empty (saved as 1). */
    interval: number | null;
    unit: CustomRecurrenceUnit;
    /** Extra weekdays of a weekly rule. The first appointment's own day is
     *  always added on top, so it is never stored here as a choice. */
    weekdays: readonly RecurrenceWeekday[];
    monthlyBy: CustomMonthlyBy;
}
export declare function defaultCustomRecurrence(): CustomRecurrenceValue;
/** True when a saved rule needs the Custom fields to show it. */
export declare function isCustomRule(rule: EditorRecurrence): boolean;
/** A saved rule back as Custom field values (the reverse of
 *  `customRecurrenceRule`). Quarterly and six-monthly read as months. */
export declare function customRecurrenceFromRule(rule: EditorRecurrence): CustomRecurrenceValue;
/** The rule fields a Custom value saves as, for the first date `start`. */
export declare function customRecurrenceRule(value: CustomRecurrenceValue, start: Date): Pick<EditorRecurrence, 'frequency' | 'interval' | 'byDay'>;
/** "Every 3 weeks · Monday and Thursday · 5 appointments". */
export declare function useRecurrenceSummary({ frequency, custom, start, ends, count, untilDate, locale, }: {
    frequency: RecurrenceFrequency | 'custom';
    custom: CustomRecurrenceValue;
    start: Date;
    ends: 'count' | 'until';
    count: number | null;
    untilDate?: Date;
    locale: string;
}): string;
/**
 * The Custom rule's fields, as cells of the editor's form grid: Repeat
 * every N, the period, then the weekday chips (weekly) or the monthly
 * choice (monthly). Controlled; `start` is the first appointment's date,
 * from which the locked weekday and the monthly choices are read.
 */
export declare function CustomRecurrenceFields({ value, onChange, start, locale, fieldClassName, wideClassName, }: {
    value: CustomRecurrenceValue;
    onChange: (next: CustomRecurrenceValue) => void;
    start: Date;
    locale: string;
    /** The grid cell class of the "Repeat every" cell. It lays its two
     *  fields out itself, so pass a class that sets no grid of its own. */
    fieldClassName: string;
    /** The grid cell class of a full-width row. */
    wideClassName: string;
}): import("react/jsx-runtime").JSX.Element;
/** The rule in one line, under the recurrence fields. */
export declare function RecurrenceSummaryLine({ summary, className, }: {
    summary: string;
    className: string;
}): import("react/jsx-runtime").JSX.Element;
//# sourceMappingURL=calendar-custom-recurrence.d.ts.map