/**
 * DateCalculator - Centralized date calculation logic for calendar
 * Handles all date computations with proper week start handling
 */
import { CalendarConfig } from '../core/CalendarConfig';
export declare class DateCalculator {
    private static config;
    /**
     * Initialize DateCalculator with configuration
     * @param config - Calendar configuration
     */
    static initialize(config: CalendarConfig): void;
    /**
     * Validate that a date is valid
     * @param date - Date to validate
     * @param methodName - Name of calling method for error messages
     * @throws Error if date is invalid
     */
    private static validateDate;
    /**
     * Get dates for work week using ISO 8601 day numbering (Monday=1, Sunday=7)
     * @param weekStart - Any date in the week
     * @returns Array of dates for the configured work days
     */
    static getWorkWeekDates(weekStart: Date): Date[];
    /**
     * Get the start of the ISO week (Monday) for a given date
     * @param date - Any date in the week
     * @returns The Monday of the ISO week
     */
    static getISOWeekStart(date: Date): Date;
    /**
     * Get the end of the ISO week for a given date
     * @param date - Any date in the week
     * @returns The end date of the ISO week (Sunday)
     */
    static getWeekEnd(date: Date): Date;
    /**
     * Get week number for a date (ISO 8601)
     * @param date - The date to get week number for
     * @returns Week number (1-53)
     */
    static getWeekNumber(date: Date): number;
    /**
     * Format a date range with customizable options
     * @param start - Start date
     * @param end - End date
     * @param options - Formatting options
     * @returns Formatted date range string
     */
    static formatDateRange(start: Date, end: Date, options?: {
        locale?: string;
        month?: 'numeric' | '2-digit' | 'long' | 'short' | 'narrow';
        day?: 'numeric' | '2-digit';
        year?: 'numeric' | '2-digit';
    }): string;
    /**
     * Format a date to ISO date string (YYYY-MM-DD)
     * @param date - Date to format
     * @returns ISO date string
     */
    static formatISODate(date: Date): string;
    /**
     * Check if a date is today
     * @param date - Date to check
     * @returns True if the date is today
     */
    static isToday(date: Date): boolean;
    /**
     * Add days to a date
     * @param date - Base date
     * @param days - Number of days to add (can be negative)
     * @returns New date
     */
    static addDays(date: Date, days: number): Date;
    /**
     * Add weeks to a date
     * @param date - Base date
     * @param weeks - Number of weeks to add (can be negative)
     * @returns New date
     */
    static addWeeks(date: Date, weeks: number): Date;
    /**
     * Get all dates in a week
     * @param weekStart - Start of the week
     * @returns Array of 7 dates for the full week
     */
    static getFullWeekDates(weekStart: Date): Date[];
    /**
     * Get the day name for a date using Intl.DateTimeFormat
     * @param date - Date to get day name for
     * @param format - 'short' or 'long'
     * @returns Day name
     */
    static getDayName(date: Date, format?: 'short' | 'long'): string;
    /**
     * Format time to HH:MM
     * @param date - Date to format
     * @returns Time string
     */
    static formatTime(date: Date): string;
    /**
     * Format time to 12-hour format
     * @param date - Date to format
     * @returns 12-hour time string
     */
    static formatTime12(date: Date): string;
    /**
     * Convert minutes since midnight to time string
     * @param minutes - Minutes since midnight
     * @returns Time string
     */
    static minutesToTime(minutes: number): string;
    /**
     * Convert time string to minutes since midnight
     * @param timeStr - Time string
     * @returns Minutes since midnight
     */
    static timeToMinutes(timeStr: string): number;
    /**
     * Get minutes since start of day
     * @param date - Date or ISO string
     * @returns Minutes since midnight
     */
    static getMinutesSinceMidnight(date: Date | string): number;
    /**
     * Calculate duration in minutes between two dates
     * @param start - Start date or ISO string
     * @param end - End date or ISO string
     * @returns Duration in minutes
     */
    static getDurationMinutes(start: Date | string, end: Date | string): number;
    /**
     * Check if two dates are on the same day
     * @param date1 - First date
     * @param date2 - Second date
     * @returns True if same day
     */
    static isSameDay(date1: Date, date2: Date): boolean;
    /**
     * Check if event spans multiple days
     * @param start - Start date or ISO string
     * @param end - End date or ISO string
     * @returns True if spans multiple days
     */
    static isMultiDay(start: Date | string, end: Date | string): boolean;
    constructor();
}
export declare function createDateCalculator(config: CalendarConfig): DateCalculator;