import { Binding } from "@uplink-protocol/core";
import { CalendarDate, CalendarMonth, CalendarYear, DateRange, YearRange } from "./calendar.interfaces";
/**
 * View state service interface
 * Responsible for managing calendar view state and binding updates
 */
export interface IViewStateService {
    /**
     * Initialize view state bindings
     */ initializeBindings(currentDate: Date, selectedDate: Date | null, selectedDateRange: DateRange, firstDayOfWeek: number, isRangeSelection: boolean, calendarDaysGenerator: () => CalendarDate[], calendarMonthsGenerator: () => CalendarMonth[], calendarYearsGenerator: () => CalendarYear[]): {
        currentMonth: Binding<number>;
        currentYear: Binding<number>;
        currentDate: Binding<Date>;
        monthName: Binding<string>;
        calendarDays: Binding<CalendarDate[]>;
        calendarMonths: Binding<CalendarMonth[]>;
        calendarYears: Binding<CalendarYear[]>;
        selectedDate: Binding<Date | null>;
        selectedDateRange: Binding<DateRange>;
        focusedDate: Binding<Date | null>;
        weekdays: Binding<string[]>;
        isRangeSelection: Binding<boolean>;
        currentYearRangeBase: Binding<YearRange | number>;
    };
    /**
     * Update current date in view state
     * @param date The date to update to
     * @param param1 Either individual bindings or an object containing the bindings
     * @param param2 Function to get month name or the generate calendar days function
     * @param param3 Optional function to generate calendar days
     */
    updateCurrentDate(date: Date, currentMonthBinding: Binding<number> | {
        currentMonth: Binding<number>;
        currentYear: Binding<number>;
        monthName: Binding<string>;
        calendarDays: Binding<CalendarDate[]>;
    }, currentYearOrGetMonthName: Binding<number> | ((month: number) => string), monthNameBindingOrGenerateCalendarDays: Binding<string> | (() => CalendarDate[]), getMonthNameFn?: (month: number) => string, calendarDaysBinding?: Binding<CalendarDate[]>, generateCalendarDaysFn?: () => CalendarDate[]): {
        month: number;
        year: number;
    };
    /**
     * Update selected date bindings
     */
    updateSelectedDate(date: Date | null, binding: Binding<Date | null>, calendarDaysBinding?: Binding<CalendarDate[]>, generateCalendarDays?: () => CalendarDate[]): void;
    /**
     * Update date range bindings
     */
    updateDateRange(range: DateRange, binding: Binding<DateRange>, calendarDaysBinding: Binding<CalendarDate[]>, generateCalendarDays: () => CalendarDate[]): void;
    /**
     * Update selection mode
     */
    updateSelectionMode(isRange: boolean, binding: Binding<boolean>, calendarDaysBinding: Binding<CalendarDate[]>, generateCalendarDays: () => CalendarDate[]): void;
    /**
     * Update selectedDateRange binding with new range
     */
    updateSelectedDateRange(range: DateRange, binding: Binding<DateRange>): void;
    /**
     * Update calendarDays binding with new calendar days
     */
    updateCalendarDays(calendarDays: CalendarDate[], binding: Binding<CalendarDate[]>): void;
    /**
     * Update focused date
     * @param date The date to focus
     * @param bindingArg Either the focusedDate binding or the calendarDays binding
     * @param generateCalendarDays Optional function to generate calendar days
     */
    updateFocusedDate(date: Date | null, bindingArg?: Binding<Date | null> | Binding<CalendarDate[]>, generateCalendarDays?: () => CalendarDate[]): void;
}