import { Ref } from 'lit/directives/ref.js';
import { PktCalendar } from '../calendar/calendar';
/**
 * Utility functions for PktDatepicker component
 *
 * This module provides helper functions organized by concern.
 * Framework-agnostic functions are delegated to shared-utils/datepicker-utils.
 * Lit-specific functions (using Ref, ElementInternals, PktCalendar) stay here.
 */
/**
 * Value parsing and validation utilities
 * Delegates to shared-utils/datepicker-utils
 */
export declare const valueUtils: {
    validateRangeOrder: (values: string[]) => boolean;
    sortDates: (dates: string[]) => string[];
    filterSelectableDates: (dates: string[], min?: string | null, max?: string | null, excludedDates?: string[], excludedWeekdays?: string[]) => string[];
};
/**
 * Input type detection utilities
 * Delegates to shared-utils/datepicker-utils
 */
export declare const inputTypeUtils: {
    getInputType: () => string;
};
/**
 * Form and validation utilities (Lit-specific — uses ElementInternals)
 */
export declare const formUtils: {
    submitForm(element: HTMLElement): void;
    submitFormOrFallback(internals: any, fallbackAction: () => void): void;
    validateDateInput(input: HTMLInputElement, internals: any, min?: string | null, max?: string | null, strings?: any): void;
};
/**
 * Calendar interaction utilities
 * handleCalendarPosition delegates to shared-utils (with Lit ref unwrapping).
 * addToSelected stays Lit-specific (uses Ref<PktCalendar>).
 */
export declare const calendarUtils: {
    addToSelected(event: Event | KeyboardEvent, calendarRef: Ref<PktCalendar>, min?: string | null, max?: string | null): void;
    handleCalendarPosition(popupRef: Ref<HTMLDivElement>, inputRef: Ref<HTMLInputElement>, hasCounter?: boolean): void;
};
/**
 * Event handling utilities (Lit-specific — uses Lit Ref types)
 */
export declare const eventUtils: {
    createDocumentClickListener(inputRef: Ref<HTMLInputElement>, inputRefTo: Ref<HTMLInputElement> | null, btnRef: Ref<HTMLButtonElement>, getCalendarOpen: () => boolean, onBlur: () => void, hideCalendar: () => void): (e: MouseEvent) => void;
    createDocumentKeydownListener(getCalendarOpen: () => boolean, hideCalendar: () => void): (e: KeyboardEvent) => void;
    handleFocusOut(event: FocusEvent, element: HTMLElement, onBlur: () => void, hideCalendar: () => void): void;
};
/**
 * CSS class utilities
 * Delegates to shared-utils/datepicker-utils
 */
export declare const cssUtils: {
    getInputClasses: (fullwidth: boolean, showRangeLabels: boolean, multiple: boolean, range: boolean, readonly?: boolean, inputType?: string) => Record<string, boolean>;
    getButtonClasses: () => Record<string, boolean>;
    getRangeLabelClasses: (showRangeLabels: boolean) => Record<string, boolean>;
};
/**
 * Date value processing utilities
 * processDateSelection delegates to shared-utils.
 * updateInputValues and processRangeBlur stay Lit-specific (use Lit Ref).
 */
export declare const dateProcessingUtils: {
    processDateSelection: (detail: string | string[], multiple: boolean, range: boolean) => string;
    updateInputValues(inputRef: Ref<HTMLInputElement>, inputRefTo: Ref<HTMLInputElement> | null, values: string[], range: boolean, multiple: boolean, manageValidity: (input: HTMLInputElement) => void): void;
    processRangeBlur(event: Event, values: string[], calendarRef: Ref<PktCalendar>, clearInputValue: () => void, manageValidity: (input: HTMLInputElement) => void): void;
};
/**
 * Keyboard navigation utilities
 * Delegates to shared-utils/datepicker-utils
 */
export declare const keyboardUtils: {
    handleInputKeydown: (event: KeyboardEvent, toggleCalendar: (e: Event) => void, submitForm?: () => void, focusNextInput?: () => void, blurInput?: () => void, commaHandler?: (e: KeyboardEvent) => void) => void;
    handleButtonKeydown: (event: KeyboardEvent, toggleCalendar: (e: Event) => void) => void;
};